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Seems every single WD SSD of mine has some problems

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don't understand what's wrong, all i saw is these kind of hd tune benchmark, not flat enough or something?


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OneMoar

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Source ?
not even sure what you are claiming looks normal to me
not exactly a speed demon but its a blue drive so thats within spec
 
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Maybe he's claiming the read rate didn't even reach 2000MB/s?
 

Rei

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Benchmark Scores It sucks...
The spike seems like something to be concerned about. Use a different benchmark instead to get a better reading such as CrystalDiskMark:

 

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Maybe he's talking about the horribly small SLC cache size?
 

Rei

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Maybe he's talking about the horribly small SLC cache size?
Would a small cache size affect such spikes like that?
 
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As i understand this, these are op's findings from somewhere, not he's own measurements. But it sure needs more info.

I was reading Tom's site a few hours ago and noticed, that there was recent testing of a nvme-drive (sx8200 Pro, i think), that has had many different revisions after launch, but with same sku. Different controllers, flash and so on. And widely bouncing performance. Could there be a similar case here? That is, If all tested drives behave badly?

But like i said, needs more info. How many drives were tested etc.

And i wouldn't be surpriced, If there's a language barrier involved. I'm battling with it almost everyday. :D
 
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You can even see this when moving files between NVME drives in Windows 10 using the Display interface from 2 GB/s to 200 kb/s regardless of drive including Corsair, OCZ, AData, Intel and Team. I have not tried Pcie 4 (Seagate 520) to PCIe 3 (SX 8200 2TB) yet though.
 
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