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The PCI-E 4 NVMe SSD question again...

Lysrin

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Researching (again) the normal real world use performance difference, as has already been mentioned in this thread, I don't think going through the effort of cloning the PCI-e 3.0 OS drive to the new drive or moving the folder is worth it in my case.

I'll save that link @lowfat , great info there, but I think I'll just leave well enough alone until the next time I do a full fresh install of Windows on the system.
 

Lysrin

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WD SN 770 (pcie 4.0 DRAM-less) 500GB boot drive on pcie 3.0
View attachment 36963
Was that on the Peak Performance profile, or the Real World one? Or maybe just Default.

My current PCI-e 3.0 drive is certainly not super speedy. This is testing on the Peak Performance profile:

1687354693979.png

You and I have different units being displayed. I don't use CrystalDiskMark often so not sure what the best test setup is. But yeah... my new drive is whole lot faster!!
 

Lysrin

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the default test
So using default, set for NVMe, my old drive, PCI-e 3.0:

1687364458248.png

The new drive, PCI-e 4.0. Pretty astounding difference.

1687364791632.png

Although I may not plunge in and move everything to the new, seeing the speed difference does make me wonder about running anything on the old one! lol

Lastly, just for comparison, my newest SATA6 SSD. This is where most of my games lived before the new SSD:

1687365226911.png
 

JD

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So using default, set for NVMe, my old drive, PCI-e 3.0:
What drive is that? Seems really bad to only be doing ~500MB/s write. If you grab CrystalDiskInfo as well, what's the health on the drive? Looks like performance is pretty degraded to me as most NVMe drives should be a lot higher.

I had a Gen4 Gigabyte drive that kinda behaved the same, write performance in the 500's, never could figure it out. Low level format would fix it temporarily, but it would just end up slowing back down. Ended up just replacing it.
 

Lysrin

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What drive is that? Seems really bad to only be doing ~500MB/s write. If you grab CrystalDiskInfo as well, what's the health on the drive? Looks like performance is pretty degraded to me as most NVMe drives should be a lot higher.

I had a Gen4 Gigabyte drive that kinda behaved the same, write performance in the 500's, never could figure it out. Low level format would fix it temporarily, but it would just end up slowing back down. Ended up just replacing it.
That is the HP EX920 512GB. I'll check the heath and see. I thought it seem slow too, but that wasn't a top tier drive when I bought it, so maybe that's normal for it?
 

Lysrin

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@JD this is the report from CrystalDiskInfo. So Good, still 81%

1687368949777.png

But the Tom's Hardware review for that drive it did much better than I'm getting. Hmm... What's going on there I wonder in my set up?

1687369114504.png
 

Bond007

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Do you have a sata ssd that you may have accidentally done the test on instead of the nvme? Those speeds are right around the sata ssd max.

Or maybe there is confusion on which drive had which results.
 

Lysrin

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Do you have a sata ssd that you may have accidentally done the test on instead of the nvme? Those speeds are right around the sata ssd max.

Or maybe there is confusion on which drive had which results.
Nope, don't think so. You can see the selected drive letter in the CrystalDiskMark results, so C: is my HP NVMe SSD. The last CrystalDiskMark is my I: drive, an actual SATA SSD.
 

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