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Participant
December 30, 2021
Question

Do "better" ssd improve speed from cpu?

  • December 30, 2021
  • 3 replies
  • 568 views
hello.
I am using photosop to handle LARGE images (from 100MP to 400MP) I have increased the RAM from 32gb to 96gb Although I notice some difference when working, there are still processes somewhat slower than I would like. The main ssd is a firecuda 520 PCIe 4.0 × 4 with assumed read-write speeds of 5000MB / s - 2500MB / s in practice, in tests of sustained speed writing frequency for a few moments passes them fast (5000Mb / s), but quickly (in seconds) the speed drops to something like 400Mb / s ... I see that there are other more optimized ssd like the samsung 970 pro,3500 MB/s - 2300 MB/s, which even being PCIe 3.0 × 4, remains stable at around 2300MB / s all the time in the sustained speed writing test. My question is, if i changing a firecuda with samsung ssd will I notice any difference in the loading times of photoshop (application of filters, export, etc)? or would you have to change the cpu to a more powerful one to notice something? CPU: Ryzen 7 3700X gpu: GIGABYTE GTX 1650 SUPER thank you

 

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3 replies

Mylenium
Legend
December 31, 2021

It's all down to the storage device's driver and its internal configuration. PS itself has no built-in methods to enforce any of that nor would that be smart in terms of cross-platform development, data safety and other considerations. All PS does is send out its API calls and then let the drivers and OS handle it. In that context synthetic performance tests really don't mean much. Not saying that switching out hardware couldn't improve things somewhat, but you shouldn't expect magical things to happen.

 

Mylenium

Mylenium
Legend
December 30, 2021

Write speeds will always budge on all SSDs, even the most powerful ones. It's inherent in how this stuff works. May products from different vendors behave differently? Sure, but eventually you'll hit all their limits, regardless. They'll simply run out of linear write blocks and then scattershot your files across the whole cell array, which is what makes them slow. That and of course things like their internal cache holding file fragments for too long and all that. So likely the answer to your conundrum is more in buying a larger SSD than one from a different vendor to at least postpone the inevitable as long as possible. Could be costly, though, for a 4TB drive or larger even. The PCI level is arguably mostly irrelevant in your scenario with no concurrent data access, assuming you keep your swap files and storage separate from the system.

 

Mylenium

Participant
December 30, 2021
definitely the sustained speed writing are not the same in different models. 
I don't know if this type of "feature" is used by photoshop when "doing things" but it is definitely not the same. here are 2 examples.



my question is basically whether photoshop uses "sustained speed writing" or not.
D Fosse
Community Expert
Community Expert
December 30, 2021

The disk you use for the primary scratch disk will have a very immediate and direct effect on Photoshop performance - especially with big files like these. It's the single most critical factor (more important than RAM).

 

So if those numbers you quote are real, then the answer is an emphatical yes.