{"id":4146,"date":"2026-05-14T17:20:30","date_gmt":"2026-05-14T09:20:30","guid":{"rendered":"https:\/\/oretonstorage.com\/?p=4146"},"modified":"2026-05-14T17:20:30","modified_gmt":"2026-05-14T09:20:30","slug":"real-ssd-performance-random-read-vs-sequential-speed","status":"publish","type":"post","link":"https:\/\/oretonstorage.com\/fr\/blog\/real-ssd-performance-random-read-vs-sequential-speed","title":{"rendered":"Ce que la plupart des utilisateurs ne comprennent toujours pas \u00e0 propos des performances r\u00e9elles des disques SSD"},"content":{"rendered":"<p><span style=\"font-size: 150%\"><em>Why Random Read Performance Matters More Than Sequential Speed<\/em><\/span><\/p>\n<p data-start=\"144\" data-end=\"202\">For years, SSD marketing has focused heavily on one thing:<\/p>\n<p data-start=\"204\" data-end=\"224\">\ud83d\udc49 sequential speed.<\/p>\n<p data-start=\"226\" data-end=\"260\">You\u2019ve probably seen numbers like:<\/p>\n<ul data-start=\"261\" data-end=\"322\">\n<li data-section-id=\"14frdvh\" data-start=\"261\" data-end=\"274\">3500 MB\/s<\/li>\n<li data-section-id=\"m54v8e\" data-start=\"275\" data-end=\"288\">5000 MB\/s<\/li>\n<li data-section-id=\"d87afw\" data-start=\"289\" data-end=\"302\">7000 MB\/s<\/li>\n<li data-section-id=\"1iy7cdy\" data-start=\"303\" data-end=\"322\">even 14000 MB\/s<\/li>\n<\/ul>\n<p data-start=\"324\" data-end=\"357\">And naturally, many users assume:<\/p>\n<blockquote data-start=\"358\" data-end=\"397\">\n<p data-start=\"360\" data-end=\"397\">higher sequential speed = faster SSD.<\/p>\n<\/blockquote>\n<p data-start=\"399\" data-end=\"454\">But in real-world use, things are far more complicated.<\/p>\n<p data-start=\"456\" data-end=\"552\">Because the performance that actually makes a PC feel fast is often not sequential speed at all.<img decoding=\"async\" class=\"wp-image-3864 alignleft\" src=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-773x1030.png\" alt=\"\" width=\"331\" height=\"441\" srcset=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-773x1030.png 773w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-225x300.png 225w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-768x1024.png 768w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-1152x1536.png 1152w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-1536x2048.png 1536w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-9x12.png 9w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-800x1067.png 800w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/02\/\u5fae\u4fe1\u56fe\u7247_20251231163157_515_1-scaled.png 1920w\" sizes=\"(max-width: 331px) 100vw, 331px\" \/><\/p>\n<p data-start=\"554\" data-end=\"668\">Instead, one of the most important \u2014 and most overlooked \u2014 aspects of SSD behavior is:<br \/>\n\ud83d\udc49 random read performance.<\/p>\n<p data-start=\"670\" data-end=\"719\">This is the part of SSD performance that affects:<\/p>\n<ul data-start=\"720\" data-end=\"868\">\n<li data-section-id=\"54my3e\" data-start=\"720\" data-end=\"745\">system responsiveness<\/li>\n<li data-section-id=\"wugzqn\" data-start=\"746\" data-end=\"771\">application launching<\/li>\n<li data-section-id=\"8ugxzv\" data-start=\"772\" data-end=\"792\">Windows behavior<\/li>\n<li data-section-id=\"ls6jj9\" data-start=\"793\" data-end=\"820\">multitasking smoothness<\/li>\n<li data-section-id=\"pgf5w0\" data-start=\"821\" data-end=\"843\">game asset loading<\/li>\n<li data-section-id=\"1uukem0\" data-start=\"844\" data-end=\"868\">overall \u201csnappiness\u201d<\/li>\n<\/ul>\n<p data-start=\"870\" data-end=\"972\">And in many everyday workloads, random performance matters far more than maximum sequential bandwidth.<\/p>\n<hr data-start=\"974\" data-end=\"977\" \/>\n<h1 data-section-id=\"16if8gh\" data-start=\"979\" data-end=\"1026\"><span role=\"text\"><strong data-start=\"981\" data-end=\"1026\">1. Sequential Speed vs Random Performance<\/strong><\/span><\/h1>\n<p data-start=\"1028\" data-end=\"1095\">To understand why this matters, it\u2019s important to separate the two.<\/p>\n<h2 data-section-id=\"40byxg\" data-start=\"1097\" data-end=\"1122\">Performance s\u00e9quentielle<\/h2>\n<p data-start=\"1123\" data-end=\"1209\">Sequential speed measures how quickly an SSD can read or write large continuous files.<\/p>\n<p data-start=\"1211\" data-end=\"1220\">Exemples :<\/p>\n<ul data-start=\"1221\" data-end=\"1295\">\n<li data-section-id=\"1odqg2a\" data-start=\"1221\" data-end=\"1243\">copying large videos<\/li>\n<li data-section-id=\"1sep65p\" data-start=\"1244\" data-end=\"1261\">moving archives<\/li>\n<li data-section-id=\"1ss687k\" data-start=\"1262\" data-end=\"1295\">transferring game installations<\/li>\n<\/ul>\n<p data-start=\"1297\" data-end=\"1348\">This is where manufacturers advertise numbers like:<\/p>\n<ul data-start=\"1349\" data-end=\"1383\">\n<li data-section-id=\"ucnk0e\" data-start=\"1349\" data-end=\"1365\">7000 MB\/s read<\/li>\n<li data-section-id=\"1v1j4v9\" data-start=\"1366\" data-end=\"1383\">6500 MB\/s write<\/li>\n<\/ul>\n<p data-start=\"1385\" data-end=\"1452\">These speeds are real \u2014<br \/>\nbut they only represent specific workloads.<\/p>\n<hr data-start=\"1454\" data-end=\"1457\" \/>\n<h2 data-section-id=\"5lxe06\" data-start=\"1459\" data-end=\"1480\">Performance al\u00e9atoire<\/h2>\n<p data-start=\"1481\" data-end=\"1582\">Random performance measures how quickly the SSD accesses many small files scattered across the drive.<\/p>\n<p data-start=\"1584\" data-end=\"1641\">This is much closer to how real operating systems behave.<\/p>\n<p data-start=\"1643\" data-end=\"1672\">Modern PCs constantly access:<\/p>\n<ul data-start=\"1673\" data-end=\"1784\">\n<li data-section-id=\"bfyw1z\" data-start=\"1673\" data-end=\"1693\">small system files<\/li>\n<li data-section-id=\"zj49f5\" data-start=\"1694\" data-end=\"1714\">application assets<\/li>\n<li data-section-id=\"ifmc4o\" data-start=\"1715\" data-end=\"1730\">browser cache<\/li>\n<li data-section-id=\"1muiszg\" data-start=\"1731\" data-end=\"1745\">game shaders<\/li>\n<li data-section-id=\"ftlh1k\" data-start=\"1746\" data-end=\"1767\">background services<\/li>\n<li data-section-id=\"j0nr1f\" data-start=\"1768\" data-end=\"1784\">temporary data<\/li>\n<\/ul>\n<p data-start=\"1786\" data-end=\"1849\">These operations are random, fragmented, and latency-sensitive.<\/p>\n<p data-start=\"1851\" data-end=\"1902\">And this is where SSD responsiveness truly matters.<\/p>\n<hr data-start=\"1904\" data-end=\"1907\" \/>\n<h1 data-section-id=\"1u6pw6w\" data-start=\"1909\" data-end=\"1958\"><span role=\"text\"><strong data-start=\"1911\" data-end=\"1958\">2. Why Your PC Rarely Operates Sequentially<\/strong><\/span><\/h1>\n<p data-start=\"1960\" data-end=\"2024\">This is one of the biggest misconceptions about SSD performance.<\/p>\n<p data-start=\"2026\" data-end=\"2096\">Most everyday tasks do NOT involve moving one giant file continuously.<\/p>\n<p data-start=\"2098\" data-end=\"2107\">When you:<\/p>\n<ul data-start=\"2108\" data-end=\"2208\">\n<li data-section-id=\"2eoz6p\" data-start=\"2108\" data-end=\"2122\">boot Windows<\/li>\n<li data-section-id=\"11lfwy3\" data-start=\"2123\" data-end=\"2138\">launch Chrome<\/li>\n<li data-section-id=\"wz3zh4\" data-start=\"2139\" data-end=\"2160\">open dozens of tabs<\/li>\n<li data-section-id=\"1my2pc7\" data-start=\"2161\" data-end=\"2175\">start a game<\/li>\n<li data-section-id=\"12rwebz\" data-start=\"2176\" data-end=\"2208\">multitask between applications<\/li>\n<\/ul>\n<p data-start=\"2210\" data-end=\"2275\">your system is accessing thousands of small files simultaneously.<\/p>\n<p data-start=\"2277\" data-end=\"2370\">This means:<br \/>\n\ud83d\udc49 latency and random access speed become far more important than peak bandwidth.<\/p>\n<hr data-start=\"2372\" data-end=\"2375\" \/>\n<h2 data-section-id=\"nojytl\" data-start=\"2377\" data-end=\"2417\">Example: Real-World Workload Behavior<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\">\n<table class=\"w-fit min-w-(--thread-content-width)\" style=\"height: 166px\" width=\"696\" data-start=\"2419\" data-end=\"2665\">\n<thead data-start=\"2419\" data-end=\"2465\">\n<tr data-start=\"2419\" data-end=\"2465\">\n<th class=\"last:pe-10\" data-start=\"2419\" data-end=\"2430\" data-col-size=\"sm\">Charge de travail<\/th>\n<th class=\"last:pe-10\" data-start=\"2430\" data-end=\"2449\" data-col-size=\"sm\">Sequential Heavy<\/th>\n<th class=\"last:pe-10\" data-start=\"2449\" data-end=\"2465\" data-col-size=\"sm\">Random Heavy<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2480\" data-end=\"2665\">\n<tr data-start=\"2480\" data-end=\"2510\">\n<td data-start=\"2480\" data-end=\"2503\" data-col-size=\"sm\">Large video transfer<\/td>\n<td data-col-size=\"sm\" data-start=\"2503\" data-end=\"2507\">\u2714<\/td>\n<td data-col-size=\"sm\" data-start=\"2507\" data-end=\"2510\"><\/td>\n<\/tr>\n<tr data-start=\"2511\" data-end=\"2541\">\n<td data-start=\"2511\" data-end=\"2534\" data-col-size=\"sm\">Windows boot process<\/td>\n<td data-start=\"2534\" data-end=\"2536\" data-col-size=\"sm\"><\/td>\n<td data-start=\"2536\" data-end=\"2541\" data-col-size=\"sm\">\u2714<\/td>\n<\/tr>\n<tr data-start=\"2542\" data-end=\"2569\">\n<td data-start=\"2542\" data-end=\"2562\" data-col-size=\"sm\">Browser launching<\/td>\n<td data-col-size=\"sm\" data-start=\"2562\" data-end=\"2564\"><\/td>\n<td data-col-size=\"sm\" data-start=\"2564\" data-end=\"2569\">\u2714<\/td>\n<\/tr>\n<tr data-start=\"2570\" data-end=\"2598\">\n<td data-start=\"2570\" data-end=\"2591\" data-col-size=\"sm\">Game asset loading<\/td>\n<td data-col-size=\"sm\" data-start=\"2591\" data-end=\"2593\"><\/td>\n<td data-col-size=\"sm\" data-start=\"2593\" data-end=\"2598\">\u2714<\/td>\n<\/tr>\n<tr data-start=\"2599\" data-end=\"2642\">\n<td data-start=\"2599\" data-end=\"2625\" data-col-size=\"sm\">File archive extraction<\/td>\n<td data-col-size=\"sm\" data-start=\"2625\" data-end=\"2633\">mixed<\/td>\n<td data-col-size=\"sm\" data-start=\"2633\" data-end=\"2642\">mixed<\/td>\n<\/tr>\n<tr data-start=\"2643\" data-end=\"2665\">\n<td data-start=\"2643\" data-end=\"2658\" data-col-size=\"sm\">Multit\u00e2ches<\/td>\n<td data-col-size=\"sm\" data-start=\"2658\" data-end=\"2660\"><\/td>\n<td data-col-size=\"sm\" data-start=\"2660\" data-end=\"2665\">\u2714<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"2667\" data-end=\"2670\" \/>\n<h1 data-section-id=\"9dflwm\" data-start=\"2672\" data-end=\"2720\"><span role=\"text\"><strong data-start=\"2674\" data-end=\"2720\">3. Why Some SSDs \u201cFeel\u201d Faster Than Others<\/strong><\/span><\/h1>\n<p data-start=\"2722\" data-end=\"2824\">This explains why two SSDs with similar advertised speeds can feel completely different in actual use.<\/p>\n<p data-start=\"2826\" data-end=\"2834\">Exemple :<\/p>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\">\n<table class=\"w-fit min-w-(--thread-content-width)\" style=\"height: 125px\" width=\"688\" data-start=\"2836\" data-end=\"2926\">\n<thead data-start=\"2836\" data-end=\"2872\">\n<tr data-start=\"2836\" data-end=\"2872\">\n<th class=\"last:pe-10\" data-start=\"2836\" data-end=\"2842\" data-col-size=\"sm\">SSD<\/th>\n<th class=\"last:pe-10\" data-start=\"2842\" data-end=\"2872\" data-col-size=\"sm\">Advertised Sequential Read<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2883\" data-end=\"2926\">\n<tr data-start=\"2883\" data-end=\"2904\">\n<td data-start=\"2883\" data-end=\"2891\" data-col-size=\"sm\">SSD A<\/td>\n<td data-start=\"2891\" data-end=\"2904\" data-col-size=\"sm\">7400 MB\/s<\/td>\n<\/tr>\n<tr data-start=\"2905\" data-end=\"2926\">\n<td data-start=\"2905\" data-end=\"2913\" data-col-size=\"sm\">SSD B<\/td>\n<td data-start=\"2913\" data-end=\"2926\" data-col-size=\"sm\">7000 MB\/s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"2928\" data-end=\"2965\">On paper:<br \/>\nthey look almost identical.<\/p>\n<p data-start=\"2967\" data-end=\"2989\">But in real workloads:<\/p>\n<ul data-start=\"2990\" data-end=\"3088\">\n<li data-section-id=\"1v5pt61\" data-start=\"2990\" data-end=\"3016\">application launch times<\/li>\n<li data-section-id=\"1cl7sbf\" data-start=\"3017\" data-end=\"3046\">multitasking responsiveness<\/li>\n<li data-section-id=\"1i5xgys\" data-start=\"3047\" data-end=\"3066\">system smoothness<\/li>\n<li data-section-id=\"rszgei\" data-start=\"3067\" data-end=\"3088\">background behavior<\/li>\n<\/ul>\n<p data-start=\"3090\" data-end=\"3112\">may differ noticeably.<\/p>\n<p data-start=\"3114\" data-end=\"3118\">Pourquoi ?<\/p>\n<p data-start=\"3120\" data-end=\"3128\">Because:<\/p>\n<ul data-start=\"3129\" data-end=\"3230\">\n<li data-section-id=\"1vsocwp\" data-start=\"3129\" data-end=\"3149\">controller quality<\/li>\n<li data-section-id=\"1fkfjug\" data-start=\"3150\" data-end=\"3173\">optimisation des microprogrammes<\/li>\n<li data-section-id=\"1vnfr45\" data-start=\"3174\" data-end=\"3188\">NAND latency<\/li>\n<li data-section-id=\"epzfag\" data-start=\"3189\" data-end=\"3205\">cache behavior<\/li>\n<li data-section-id=\"1ntfohi\" data-start=\"3206\" data-end=\"3230\">random read efficiency<\/li>\n<\/ul>\n<p data-start=\"3232\" data-end=\"3272\">matter far more than many users realize.<\/p>\n<hr data-start=\"3274\" data-end=\"3277\" \/>\n<h1 data-section-id=\"1edf9wf\" data-start=\"3279\" data-end=\"3341\"><span role=\"text\"><strong data-start=\"3281\" data-end=\"3341\">4. Random Read Performance Affects System Responsiveness<\/strong><\/span><\/h1>\n<p data-start=\"3343\" data-end=\"3395\">This is where SSD behavior becomes visible to users.<\/p>\n<p data-start=\"3397\" data-end=\"3435\">High random read performance improves:<\/p>\n<ul data-start=\"3436\" data-end=\"3583\">\n<li data-section-id=\"w4cq8d\" data-start=\"3436\" data-end=\"3460\">desktop responsiveness<\/li>\n<li data-section-id=\"5q73m8\" data-start=\"3461\" data-end=\"3488\">application startup speed<\/li>\n<li data-section-id=\"1m60shj\" data-start=\"3489\" data-end=\"3505\">task switching<\/li>\n<li data-section-id=\"4bv0ii\" data-start=\"3506\" data-end=\"3539\">background operation smoothness<\/li>\n<li data-section-id=\"9kap4g\" data-start=\"3540\" data-end=\"3555\">file indexing<\/li>\n<li data-section-id=\"3a3930\" data-start=\"3556\" data-end=\"3583\">operating system behavior<\/li>\n<\/ul>\n<p data-start=\"3585\" data-end=\"3673\">This is often why:<br \/>\n\ud83d\udc49 a \u201cslower\u201d SSD on paper may still feel smoother in real-world use.<\/p>\n<hr data-start=\"3675\" data-end=\"3678\" \/>\n<h2 data-section-id=\"18rylbl\" data-start=\"3680\" data-end=\"3731\">Example: Sequential Speed vs Real Responsiveness<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\">\n<table class=\"w-fit min-w-(--thread-content-width)\" style=\"height: 184px\" width=\"775\" data-start=\"3733\" data-end=\"4036\">\n<thead data-start=\"3733\" data-end=\"3804\">\n<tr data-start=\"3733\" data-end=\"3804\">\n<th class=\"last:pe-10\" data-start=\"3733\" data-end=\"3744\" data-col-size=\"sm\">SSD Type<\/th>\n<th class=\"last:pe-10\" data-start=\"3744\" data-end=\"3762\" data-col-size=\"sm\">Lecture s\u00e9quentielle<\/th>\n<th class=\"last:pe-10\" data-start=\"3762\" data-end=\"3785\" data-col-size=\"sm\">Random Read Behavior<\/th>\n<th class=\"last:pe-10\" data-start=\"3785\" data-end=\"3804\" data-col-size=\"sm\">Real-World Feel<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3823\" data-end=\"4036\">\n<tr data-start=\"3823\" data-end=\"3894\">\n<td data-start=\"3823\" data-end=\"3845\" data-col-size=\"sm\">Budget PCIe 4.0 SSD<\/td>\n<td data-col-size=\"sm\" data-start=\"3845\" data-end=\"3857\">Tr\u00e8s \u00e9lev\u00e9<\/td>\n<td data-col-size=\"sm\" data-start=\"3857\" data-end=\"3868\">Mod\u00e9r\u00e9<\/td>\n<td data-col-size=\"sm\" data-start=\"3868\" data-end=\"3894\">sometimes inconsistent<\/td>\n<\/tr>\n<tr data-start=\"3895\" data-end=\"3967\">\n<td data-start=\"3895\" data-end=\"3921\" data-col-size=\"sm\">Optimized mid-range SSD<\/td>\n<td data-col-size=\"sm\" data-start=\"3921\" data-end=\"3938\">Slightly lower<\/td>\n<td data-col-size=\"sm\" data-start=\"3938\" data-end=\"3947\">Fort<\/td>\n<td data-col-size=\"sm\" data-start=\"3947\" data-end=\"3967\">smoother overall<\/td>\n<\/tr>\n<tr data-start=\"3968\" data-end=\"4036\">\n<td data-start=\"3968\" data-end=\"3979\" data-col-size=\"sm\">SATA SSD<\/td>\n<td data-col-size=\"sm\" data-start=\"3979\" data-end=\"3992\">Much lower<\/td>\n<td data-col-size=\"sm\" data-start=\"3992\" data-end=\"4000\">Plus bas<\/td>\n<td data-col-size=\"sm\" data-start=\"4000\" data-end=\"4036\">still responsive for daily tasks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"4038\" data-end=\"4041\" \/>\n<h1 data-section-id=\"1cucdil\" data-start=\"4043\" data-end=\"4123\"><span role=\"text\"><strong data-start=\"4045\" data-end=\"4123\">5. Gaming Performance Depends More on Random Access Than Most People Think<\/strong><\/span><\/h1>\n<p data-start=\"4125\" data-end=\"4176\">Many users assume game performance only depends on:<\/p>\n<ul data-start=\"4177\" data-end=\"4202\">\n<li data-section-id=\"1o4hey\" data-start=\"4177\" data-end=\"4182\">GPU<\/li>\n<li data-section-id=\"1o4e26\" data-start=\"4183\" data-end=\"4188\">UNIT\u00c9 CENTRALE<\/li>\n<li data-section-id=\"13q0pe6\" data-start=\"4189\" data-end=\"4202\">average FPS<\/li>\n<\/ul>\n<p data-start=\"4204\" data-end=\"4270\">But modern games increasingly rely on rapid asset loading systems.<\/p>\n<p data-start=\"4272\" data-end=\"4309\">Open-world engines constantly stream:<\/p>\n<ul data-start=\"4310\" data-end=\"4360\">\n<li data-section-id=\"ircb38\" data-start=\"4310\" data-end=\"4320\">textures<\/li>\n<li data-section-id=\"jujqfm\" data-start=\"4321\" data-end=\"4331\">geometry<\/li>\n<li data-section-id=\"1o2f91u\" data-start=\"4332\" data-end=\"4341\">shaders<\/li>\n<li data-section-id=\"1n8394d\" data-start=\"4342\" data-end=\"4360\">environment data<\/li>\n<\/ul>\n<p data-start=\"4362\" data-end=\"4378\">during gameplay.<\/p>\n<p data-start=\"4380\" data-end=\"4404\">These workloads involve:<\/p>\n<ul data-start=\"4405\" data-end=\"4478\">\n<li data-section-id=\"1q4h81k\" data-start=\"4405\" data-end=\"4431\">many small file accesses<\/li>\n<li data-section-id=\"11u5osb\" data-start=\"4432\" data-end=\"4454\">low-latency requests<\/li>\n<li data-section-id=\"1ky1svk\" data-start=\"4455\" data-end=\"4478\">rapid asset retrieval<\/li>\n<\/ul>\n<p data-start=\"4480\" data-end=\"4516\">not just large sequential transfers.<\/p>\n<p data-start=\"4518\" data-end=\"4579\">Voici pourquoi :<br \/>\n\ud83d\udc49 random read performance increasingly affects:<\/p>\n<ul data-start=\"4580\" data-end=\"4688\">\n<li data-section-id=\"hoasmx\" data-start=\"4580\" data-end=\"4602\">traversal smoothness<\/li>\n<li data-section-id=\"kolusn\" data-start=\"4603\" data-end=\"4619\">shader loading<\/li>\n<li data-section-id=\"13f8njf\" data-start=\"4620\" data-end=\"4639\">texture streaming<\/li>\n<li data-section-id=\"b0pdtt\" data-start=\"4640\" data-end=\"4661\">stuttering behavior<\/li>\n<li data-section-id=\"1u9usp\" data-start=\"4662\" data-end=\"4688\">frame pacing consistency<\/li>\n<\/ul>\n<p data-start=\"4690\" data-end=\"4728\">especially in modern open-world games.<\/p>\n<hr data-start=\"4730\" data-end=\"4733\" \/>\n<h1 data-section-id=\"1p2e973\" data-start=\"4735\" data-end=\"4783\"><span role=\"text\"><strong data-start=\"4737\" data-end=\"4783\">6. Why Benchmark Numbers Can Be Misleading<\/strong><\/span><\/h1>\n<p data-start=\"4785\" data-end=\"4845\">Most SSD marketing focuses on sequential throughput because:<\/p>\n<ul data-start=\"4846\" data-end=\"4952\">\n<li data-section-id=\"uw7uan\" data-start=\"4846\" data-end=\"4875\">the numbers look impressive<\/li>\n<li data-section-id=\"9d9q84\" data-start=\"4876\" data-end=\"4904\">they are easy to advertise<\/li>\n<li data-section-id=\"s5f6cl\" data-start=\"4905\" data-end=\"4952\">they scale dramatically with PCIe generations<\/li>\n<\/ul>\n<p data-start=\"4954\" data-end=\"5004\">But real-world responsiveness depends far more on:<\/p>\n<ul data-start=\"5005\" data-end=\"5082\">\n<li data-section-id=\"td32hs\" data-start=\"5005\" data-end=\"5014\">latence<\/li>\n<li data-section-id=\"49936q\" data-start=\"5015\" data-end=\"5035\">sustained behavior<\/li>\n<li data-section-id=\"1w4d7og\" data-start=\"5036\" data-end=\"5062\">random access efficiency<\/li>\n<li data-section-id=\"1mwmowa\" data-start=\"5063\" data-end=\"5082\">cache consistency<\/li>\n<\/ul>\n<p data-start=\"5084\" data-end=\"5176\">Voici pourquoi :<br \/>\n\ud83d\udc49 benchmark leadership does not always translate into a faster-feeling system.<\/p>\n<hr data-start=\"5178\" data-end=\"5181\" \/>\n<h2 data-section-id=\"1nlblmb\" data-start=\"5183\" data-end=\"5232\">Example: Real-World Difference Shrinks Quickly<\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\">\n<table class=\"w-fit min-w-(--thread-content-width)\" style=\"height: 217px\" width=\"801\" data-start=\"5234\" data-end=\"5509\">\n<thead data-start=\"5234\" data-end=\"5291\">\n<tr data-start=\"5234\" data-end=\"5291\">\n<th class=\"last:pe-10\" data-start=\"5234\" data-end=\"5245\" data-col-size=\"sm\">SSD Type<\/th>\n<th class=\"last:pe-10\" data-start=\"5245\" data-end=\"5263\" data-col-size=\"sm\">Lecture s\u00e9quentielle<\/th>\n<th class=\"last:pe-10\" data-start=\"5263\" data-end=\"5291\" data-col-size=\"sm\">Typical Daily Experience<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"5306\" data-end=\"5509\">\n<tr data-start=\"5306\" data-end=\"5343\">\n<td data-start=\"5306\" data-end=\"5317\" data-col-size=\"sm\">SATA SSD<\/td>\n<td data-start=\"5317\" data-end=\"5329\" data-col-size=\"sm\">~550 MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"5329\" data-end=\"5343\">responsive<\/td>\n<\/tr>\n<tr data-start=\"5344\" data-end=\"5383\">\n<td data-start=\"5344\" data-end=\"5360\" data-col-size=\"sm\">PCIe 3.0 NVMe<\/td>\n<td data-start=\"5360\" data-end=\"5373\" data-col-size=\"sm\">~3500 MB\/s<\/td>\n<td data-start=\"5373\" data-end=\"5383\" data-col-size=\"sm\">plus rapide<\/td>\n<\/tr>\n<tr data-start=\"5384\" data-end=\"5434\">\n<td data-start=\"5384\" data-end=\"5400\" data-col-size=\"sm\">PCIe 4.0 NVMe<\/td>\n<td data-start=\"5400\" data-end=\"5413\" data-col-size=\"sm\">~7000 MB\/s<\/td>\n<td data-col-size=\"sm\" data-start=\"5413\" data-end=\"5434\">slightly smoother<\/td>\n<\/tr>\n<tr data-start=\"5435\" data-end=\"5509\">\n<td data-start=\"5435\" data-end=\"5451\" data-col-size=\"sm\">PCIe 5.0 NVMe<\/td>\n<td data-start=\"5451\" data-end=\"5466\" data-col-size=\"sm\">~12000+ MB\/s<\/td>\n<td data-start=\"5466\" data-end=\"5509\" data-col-size=\"sm\">diminishing returns in many daily tasks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h3 data-section-id=\"gluf2\" data-start=\"5511\" data-end=\"5527\">Observation :<\/h3>\n<p data-start=\"5528\" data-end=\"5562\">Sequential speed scales massively.<\/p>\n<p data-start=\"5564\" data-end=\"5621\">But everyday responsiveness improves much more gradually.<\/p>\n<hr data-start=\"5623\" data-end=\"5626\" \/>\n<h1 data-section-id=\"1pi6941\" data-start=\"5628\" data-end=\"5673\"><span role=\"text\"><strong data-start=\"5630\" data-end=\"5673\">7. Latency Matters More Than Peak Speed<\/strong><\/span><\/h1>\n<p data-start=\"5675\" data-end=\"5747\">One of the hidden reasons random performance matters so much is latency.<\/p>\n<p data-start=\"5749\" data-end=\"5806\">Sequential bandwidth measures:<br \/>\n\ud83d\udc49 how much data can move.<\/p>\n<p data-start=\"5808\" data-end=\"5858\">Latency measures:<br \/>\n\ud83d\udc49 how quickly the SSD responds.<\/p>\n<p data-start=\"5860\" data-end=\"5931\">And modern operating systems depend heavily on rapid response behavior.<\/p>\n<p data-start=\"5933\" data-end=\"5956\">Lower latency improves:<\/p>\n<ul data-start=\"5957\" data-end=\"6026\">\n<li data-section-id=\"8p9anz\" data-start=\"5957\" data-end=\"5973\">responsiveness<\/li>\n<li data-section-id=\"24drlt\" data-start=\"5974\" data-end=\"5986\">smoothness<\/li>\n<li data-section-id=\"1m60shj\" data-start=\"5987\" data-end=\"6003\">task switching<\/li>\n<li data-section-id=\"1op297i\" data-start=\"6004\" data-end=\"6026\">application behavior<\/li>\n<\/ul>\n<p data-start=\"6028\" data-end=\"6058\">This is why many users notice:<\/p>\n<ul data-start=\"6059\" data-end=\"6127\">\n<li data-section-id=\"avy1kp\" data-start=\"6059\" data-end=\"6084\">faster-feeling desktops<\/li>\n<li data-section-id=\"1dvpbrt\" data-start=\"6085\" data-end=\"6108\">smoother multitasking<\/li>\n<li data-section-id=\"wwrywh\" data-start=\"6109\" data-end=\"6127\">quicker launches<\/li>\n<\/ul>\n<p data-start=\"6129\" data-end=\"6182\">even when average benchmark differences appear small.<\/p>\n<hr data-start=\"6184\" data-end=\"6187\" \/>\n<h1 data-section-id=\"lvkyn8\" data-start=\"6189\" data-end=\"6239\"><span role=\"text\"><strong data-start=\"6191\" data-end=\"6239\">8. Controller Architecture Plays a Huge Role<\/strong><\/span><\/h1>\n<p data-start=\"6241\" data-end=\"6275\">This is another overlooked factor.<\/p>\n<p data-start=\"6277\" data-end=\"6312\">SSD performance depends heavily on:<\/p>\n<ul data-start=\"6313\" data-end=\"6410\">\n<li data-section-id=\"1ath2me\" data-start=\"6313\" data-end=\"6332\">controller design<\/li>\n<li data-section-id=\"1fkfjug\" data-start=\"6333\" data-end=\"6356\">optimisation des microprogrammes<\/li>\n<li data-section-id=\"cb6v4v\" data-start=\"6357\" data-end=\"6373\">cache strategy<\/li>\n<li data-section-id=\"10caiu6\" data-start=\"6374\" data-end=\"6391\">NAND management<\/li>\n<li data-section-id=\"546gi7\" data-start=\"6392\" data-end=\"6410\">thermal behavior<\/li>\n<\/ul>\n<p data-start=\"6412\" data-end=\"6508\">Two drives using the same PCIe generation may behave very differently under sustained workloads.<\/p>\n<p data-start=\"6510\" data-end=\"6528\">Especially during:<\/p>\n<ul data-start=\"6529\" data-end=\"6630\">\n<li data-section-id=\"87otes\" data-start=\"6529\" data-end=\"6551\">long gaming sessions<\/li>\n<li data-section-id=\"1t3n71r\" data-start=\"6552\" data-end=\"6572\">heavy multitasking<\/li>\n<li data-section-id=\"c5ytxt\" data-start=\"6573\" data-end=\"6606\">background application activity<\/li>\n<li data-section-id=\"1tvgeqd\" data-start=\"6607\" data-end=\"6630\">large file operations<\/li>\n<\/ul>\n<p data-start=\"6632\" data-end=\"6685\">consistency matters more than short benchmark bursts.<\/p>\n<hr data-start=\"6687\" data-end=\"6690\" \/>\n<h1 data-section-id=\"1rc74cs\" data-start=\"6692\" data-end=\"6740\"><span role=\"text\"><strong data-start=\"6694\" data-end=\"6740\">9. Why Cheap SSDs Often Feel Fast at First<\/strong><\/span><\/h1>\n<p data-start=\"6742\" data-end=\"6796\">Many low-cost SSDs rely heavily on cache acceleration.<\/p>\n<p data-start=\"6798\" data-end=\"6808\">Initially:<\/p>\n<ul data-start=\"6809\" data-end=\"6876\">\n<li data-section-id=\"merhhe\" data-start=\"6809\" data-end=\"6844\">burst performance looks excellent<\/li>\n<li data-section-id=\"1btu9bw\" data-start=\"6845\" data-end=\"6876\">benchmarks appear competitive<\/li>\n<\/ul>\n<p data-start=\"6878\" data-end=\"6903\">But once the cache fills:<\/p>\n<ul data-start=\"6904\" data-end=\"6982\">\n<li data-section-id=\"htlv3g\" data-start=\"6904\" data-end=\"6930\">write speed may collapse<\/li>\n<li data-section-id=\"juvklt\" data-start=\"6931\" data-end=\"6953\">latency may increase<\/li>\n<li data-section-id=\"1bbdtmm\" data-start=\"6954\" data-end=\"6982\">responsiveness may degrade<\/li>\n<\/ul>\n<p data-start=\"6984\" data-end=\"7094\">This is one reason sustained performance and controller quality matter far more than many spec sheets suggest.<\/p>\n<hr data-start=\"7096\" data-end=\"7099\" \/>\n<h1 data-section-id=\"1vqk9c4\" data-start=\"7101\" data-end=\"7163\"><span role=\"text\"><strong data-start=\"7103\" data-end=\"7163\">10. Modern PCs Depend More on Random Workloads Than Ever<\/strong><\/span><\/h1>\n<p data-start=\"7165\" data-end=\"7209\">Modern operating systems constantly perform:<\/p>\n<ul data-start=\"7210\" data-end=\"7314\">\n<li data-section-id=\"1k5vidy\" data-start=\"7210\" data-end=\"7220\">indexing<\/li>\n<li data-section-id=\"1vee75m\" data-start=\"7221\" data-end=\"7238\">synchronization<\/li>\n<li data-section-id=\"1318ibo\" data-start=\"7239\" data-end=\"7259\">background updates<\/li>\n<li data-section-id=\"88g201\" data-start=\"7260\" data-end=\"7269\">caching<\/li>\n<li data-section-id=\"1nf0tzf\" data-start=\"7270\" data-end=\"7288\">asset management<\/li>\n<li data-section-id=\"40sqoa\" data-start=\"7289\" data-end=\"7314\">multitasking operations<\/li>\n<\/ul>\n<p data-start=\"7316\" data-end=\"7388\">At the same time, games and applications continue growing in complexity.<\/p>\n<p data-start=\"7390\" data-end=\"7514\">As workloads become increasingly fragmented and data-driven:<br \/>\n\ud83d\udc49 random access performance becomes more important \u2014<br \/>\nnot less.<\/p>\n<hr data-start=\"7516\" data-end=\"7519\" \/>\n<h1 data-section-id=\"i858ms\" data-start=\"7521\" data-end=\"7596\"><span role=\"text\"><strong data-start=\"7523\" data-end=\"7596\">11. Sequential Speed Still Matters \u2014 But Mostly in Specific Workloads<\/strong><\/span><\/h1>\n<p data-start=\"7598\" data-end=\"7644\">Sequential performance is still important for:<\/p>\n<ul data-start=\"7645\" data-end=\"7751\">\n<li data-section-id=\"lujk09\" data-start=\"7645\" data-end=\"7668\">large media transfers<\/li>\n<li data-section-id=\"1lzkcu\" data-start=\"7669\" data-end=\"7697\">professional video editing<\/li>\n<li data-section-id=\"1w8v82c\" data-start=\"7698\" data-end=\"7722\">large archive movement<\/li>\n<li data-section-id=\"d54iws\" data-start=\"7723\" data-end=\"7751\">heavy production workloads<\/li>\n<\/ul>\n<p data-start=\"7753\" data-end=\"7790\">But for typical daily responsiveness:<\/p>\n<ul data-start=\"7791\" data-end=\"7839\">\n<li data-section-id=\"qfm4xe\" data-start=\"7791\" data-end=\"7805\">random reads<\/li>\n<li data-section-id=\"td32hs\" data-start=\"7806\" data-end=\"7815\">latence<\/li>\n<li data-section-id=\"ov3tkw\" data-start=\"7816\" data-end=\"7839\">sustained consistency<\/li>\n<\/ul>\n<p data-start=\"7841\" data-end=\"7887\">often define user experience far more clearly.<\/p>\n<hr data-start=\"7889\" data-end=\"7892\" \/>\n<h1 data-section-id=\"1o52lv6\" data-start=\"7894\" data-end=\"7918\"><span role=\"text\"><strong data-start=\"7896\" data-end=\"7918\">12. Final Takeaway<\/strong><\/span><\/h1>\n<p data-start=\"7920\" data-end=\"8011\">Sequential SSD speeds are easy to market because the numbers are large and easy to compare.<\/p>\n<p data-start=\"8013\" data-end=\"8066\">But real-world PC responsiveness depends far more on:<\/p>\n<ul data-start=\"8067\" data-end=\"8149\">\n<li data-section-id=\"1c5447v\" data-start=\"8067\" data-end=\"8091\">random access behavior<\/li>\n<li data-section-id=\"td32hs\" data-start=\"8092\" data-end=\"8101\">latence<\/li>\n<li data-section-id=\"mbjdj7\" data-start=\"8102\" data-end=\"8125\">efficacit\u00e9 du contr\u00f4leur<\/li>\n<li data-section-id=\"ov3tkw\" data-start=\"8126\" data-end=\"8149\">sustained consistency<\/li>\n<\/ul>\n<p data-start=\"8151\" data-end=\"8255\">This is why some SSDs feel dramatically smoother than others even when advertised speeds appear similar.<\/p>\n<p data-start=\"8257\" data-end=\"8446\">Because modern computing performance is no longer only about how fast data moves in a straight line \u2014<br \/>\nit\u2019s about how efficiently the system handles thousands of small requests every second.<\/p>\n<p data-start=\"8448\" data-end=\"8503\">And that is where random read performance matters most.<\/p>\n<hr data-start=\"8505\" data-end=\"8508\" \/>\n<h1 data-section-id=\"1dnh4qu\" data-start=\"8510\" data-end=\"8528\"><span role=\"text\"><strong data-start=\"8512\" data-end=\"8528\">\u00c0 propos d'Oreton<\/strong><\/span><\/h1>\n<p data-start=\"8530\" data-end=\"8648\">At Oreton, we focus on storage solutions designed around real-world responsiveness rather than headline numbers alone.<img decoding=\"async\" class=\"alignnone  wp-image-3640\" src=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-1030x434.png\" alt=\"\" width=\"920\" height=\"388\" srcset=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-1030x434.png 1030w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-300x126.png 300w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-768x323.png 768w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-1536x647.png 1536w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-2048x862.png 2048w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-18x8.png 18w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2026\/01\/\u5fae\u4fe1\u56fe\u7247_20260121103512_649_1-800x337.png 800w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/><\/p>\n<p data-start=\"8650\" data-end=\"8858\">From reliable SATA SSDs to high-speed NVMe solutions, our products are optimized for consistent behavior, low-latency responsiveness, and stable long-term performance across different workloads and platforms.<\/p>\n<p data-start=\"8860\" data-end=\"8976\" data-is-last-node=\"\" data-is-only-node=\"\">Because real SSD performance is not only about peak speed \u2014<br data-start=\"8919\" data-end=\"8922\" \/>it\u2019s about how smoothly the system performs every day.<\/p>","protected":false},"excerpt":{"rendered":"<p>Pourquoi les performances de lecture al\u00e9atoire sont plus importantes que la vitesse s\u00e9quentielle Pendant des ann\u00e9es, le marketing des disques SSD s'est concentr\u00e9 sur une seule chose : la vitesse s\u00e9quentielle \ud83d\udc49. Vous avez probablement vu des chiffres tels que : 3500 Mo\/s 5000 Mo\/s 7000 Mo\/s voire 14000 Mo\/s Et naturellement, de nombreux utilisateurs partent du principe qu'une vitesse s\u00e9quentielle plus \u00e9lev\u00e9e = un disque SSD plus rapide. Mais dans le monde r\u00e9el, les choses sont bien plus...<\/p>","protected":false},"author":3,"featured_media":4147,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Most Users Still Don\u2019t Understand About Real SSD Performance -<\/title>\n<meta name=\"description\" content=\"Sequential SSD speeds don\u2019t tell the full story. 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