9.10.23_Which spec of cpu helps PS and why?

Question

Hey all, which spec of cpu helps PS and why? Specifically, I wanted to know which parts of the CPU help w high dpi 300-600ppi (20x28in canvas) + large brush sizeFor faster pixel by pixel rendering speedwhen laying down brush strokes real time (Which also seems to be in line with mixer brush speed) ————- From the research Ive done so far, There’s 4 main factors for cpu...=Processing speed/mhz,core, thread,—- mb of game cache  ————- P.S.Im not asking about how to adjust the brush or PS settings to make the brush lag less. Ive done thorough testing and I know that its the increasing of the ppi thats causing the issue and only when brush size is large as well.Ram, brush settings, PS settings are all fine when ppi is lower along w canvas size so Im specifically asking for help regarding upgrading CPU hardware knowledge.

Trevor.Dennis · Answer

Clock speed is king with Photoshop, so a CPU that runs at 5Ghz with six cores (ten threads) will outperform a CPU thst runs at 4.5Ghz and has 20 cores. You can get real world, app specific data from the Puget Systems site.

https://www.pugetsystems.com/all-articles/?filter=processors%2Cphotoshop

(Change the filters to see how other aspects affect Photoshop and what other apps you run).

We have a home brewed benchmark we use to compare our systems.

Open a 30,000 X 30,000 8 bit document

Select the brush and a fully hard 5000 pixel preset with spacing set to 1%

Touch down in one corner of the document, and Shift touch in the diagonally opposite corner and check the timing.

Note: if you open the Info Panel Options and check Timing you'll get an easy to see indication of how long the last function took. It also helps to be precise if you have cross hair turned on in your brush cursor.

To give you some context, I am running

i9-13900K at stock speed

64Gb RAM

RTX4080

Samsung 980 PRO 2TB boot

Samsung 980 PRO 2TB scratch (nearly empty)

My last system also had 64Gb memory and never maxed out Photoshop's allocated memory, but did create some very large Photoshop temp files on the scratch drive, so it's important to pay attention to scratch space and performance.

I hope this helps.

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