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Memory management in photoshop

Explorer ,
Nov 29, 2023 Nov 29, 2023

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Good morning!

When I go to preferences==>performance, I notice that the memory available for photoshop is 10326 Mb. However, my laptop has the following settings
AMD Rysen 7 processor - 5800h
RAM memory: 16Gb
Video card: Nvidio RTX 3050
Considering that my laptop has two video cards, one integrated and the other dedicated, I assigned Photoshop to the high performance card both in the Nvidia control panel and in the Windows settings following the guidelines in the article below:
https://onedrive.live.com/view.aspx?resid=4E41738F4FD656AA%211074474&id=documents&wd=target%28M%C3%B... %20%20performance%7CB55122E9-39AE-46E4-93B1-6C3F6EF3B7C0%2F%29
onenote:https://d.docs.live.net/4e41738f4fd656aa/Documentos/Jornada%2010KS/Módulo%2008%20-%20Photoshop.one#A... FC36CB144C04}&page-id={B55122E9-39AE-46E4-93B1-6C3F6EF3B7C0}&object-id={2C0FB8E7-B2E2-4176-AD1F-8C29674FE030}&37

My question is why the memory available for the PS is much lower than the memory limit of my device?
Does the PS evaluate the memory consumption of other applications that are being used?

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Adobe
Community Expert ,
Nov 29, 2023 Nov 29, 2023

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It's normal. What you see reported is the memory available for Photoshop, which is less than the total amount. I have 32 GB on this machine, and Photoshop reports 25.

 

The calculation changed a few versions ago, so now it reports slightly less than it used to.  But still, it's as designed and there's nothing wrong.

 

It doesn't matter much in practice. Contrary to what many believe, there is no such thing as "enough RAM" anyway. The heavy lifting is done by the scratch disk. The real memory needs are much bigger than any RAM you may have, so temporary working data are written to disk. That's the scratch disk. Think of RAM as a fast access cache to the scratch disk's main memory.

 

In the old days, disk drives were slow, so then it mattered. Today's crazy fast NVMe drives removes that bottleneck for all practical purposes. The critical thing is to make sure you have enough scratch disk space (at least 150-250 GB for any serious work, but sometimes even more is needed).

 

Assigning the max possible amount of RAM to Photoshop is not really desirable in any case. The rest of the system needs memory too, or everything starts to slow down. Even Photoshop plugins like ACR need their own memory. So keep it at around 70%.

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Explorer ,
Nov 29, 2023 Nov 29, 2023

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Thank you for the answer

I have two SSDs in my LapTop, one for the system (C:) and one for work (D:), both are 476Gb and coincidentally both have 160Gb free. I configured phoshop to use the work one. However, I have a 1TB SSD and I'm going to replace it with the one I currently have, installing (D:) and that way I'll have more space. In the current condition, I have allocated 67% memory to photoshop.

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