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Cyberpunk 2077 CPU perforamnce and easy AMD fix

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Currently this game has some performance bugs when running on Ryzen CPU's, something to do with the games engine checking which CPU is running and then assigning it a code path, unfortunately at the moment its assigning Ryzen CPU's the wrong code path which has a detriment effect on its performance.

Fortunately there is an easy fix that you can do yourself until the Developer fixes this problem themselves.
The result of which is very good performance, see slide.

Toms Hardware had a look into this and provided some instruction and analysis.

How to Apply the Cyberpunk 2077 AMD 'Fix'
You can find detailed instructions on applying the fix in several locations; there's a PCGaminWiki listing, a video, and a reddit post with more info on applying the fix manually. New software that automatically applies the 'fix' is already in circulation, but always exercise caution with unverified software - there could be malware lurking.

Here's a simple bullet point list of instructions on how to make the change, but head to the linked resources above if you're not experienced with making these kinds of modifications:

  • Open a hex editor to open the Cyberpunk 2077 .exe file
  • Search the executable for the following hexadecimal string: 75 30 33 C9 B8 01 00 00 00 0F A2 8B C8 C1 F9 08
  • Change to: EB 30 33 C9 B8 01 00 00 00 0F A2 8B C8 C1 F9 08 (yes, you only modify one entry). (address 02A816B0)
  • Save and exit.
And with that fix, the game code treats all CPUs equally and will spread the workload across all available cores. Now you're ready to test to see if your particular configuration responds well to the patch. We did just that with a limited selection of AMD processors to see which models benefit, but our testing is ongoing. We'll add more chips to the charts as results come in.
Click to expand...

Age0F0h.png



https://www.tomshardware.com/uk/news/cyberpunk-2077-amd-ryzen-performance-bug-fix-testing
 
Is this a conspiracy or an actual coding error?

and you should move this thread to the GPU sub-section. Lol and watch it explode. :D
 
pc-guy said:
Is this a conspiracy or an actual coding error?

and you should move this thread to the GPU sub-section. Lol and watch it explode. :D
Click to expand...

Its just an old engine, legacy, modern game engine don't vendor check anymore, no need for it.
 
2 of my brothers went through the process:
1 - 3700x/2070 - +40fps and loading times went from 45s to sub 5s
2 - 4770k/7500XT - +20fps and loading times went from 60s to 5s.
 
alec said:
this doesn't make sense
and neither do load time improvements. Must be a memory cache effect
Click to expand...

Looking at what is required as part of the change, based on the CSV, the fact VRAM and RAM is capped at 3gb, this will cause nothing but issues and the loading times don't surprise me. For a game like that being limited to 3gb, it'll chew it all before the game has fully loaded.
 
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