SSD read and write speeds, can you tell a difference?

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bubbletopspoon

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Sep 14, 2013
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Hi guys, quick one here
I currently have 1 Samsung 840 evo 120gb ssd which when i was researching seemed to be the best choice with around 540 read and write speeds which were some of the best i saw. Since that purchase ive used the storage space up and would like to purchase another 240gb SSD although i am on a strict budget at the moment unlike before. So of course i would like to buy the samsung evo 850 but there are cheaper ssds with slower read and write speeds, take the sandisk one for example with 520 read and 360 write. So two questions:

1) can you tell a difference in performance with a slightly slower SSD such as the sandisk one i mentioned compared to the Samsung one

2) If i mainly want my new SSD for installing games to play and maybe a couple of applications, should i be looking more at the read or write speeds.

Cheers guys, any help appreciated
 
Solution
1) Can you tell the difference between 540 sequential read and 520 without looking at a readout? No. Now random read performance is another story - without knowing the exact sandisk model I can't tell you how it performs in that respect (it's not necessarily proportional to sequential read performance). And random read is going to be more relevant for gaming and most typical consumer workloads.

Will you notice a difference in the write performance? Maybe - depending on what you are doing, but you won't notice it in games.

2) For gaming, read performance will be vastly more important than write performance. This is true for most consumer use-cases as well.
1) Can you tell the difference between 540 sequential read and 520 without looking at a readout? No. Now random read performance is another story - without knowing the exact sandisk model I can't tell you how it performs in that respect (it's not necessarily proportional to sequential read performance). And random read is going to be more relevant for gaming and most typical consumer workloads.

Will you notice a difference in the write performance? Maybe - depending on what you are doing, but you won't notice it in games.

2) For gaming, read performance will be vastly more important than write performance. This is true for most consumer use-cases as well.
 
Solution
no, most people won't be able to. and even if you do, maybe you will notice it under some selected activities. but for everyday use, no.
unless you bench.

that is why i based my decision on price, reliability and other features. not on speed. a slow ssd is still a lot faster than mechanical hdd's.
 
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