Re: Horrible Peformance on iMac 2019 with Vega 48 (Core i9)
@jackofallgamesYT
What's the DeviceID? It's the next line, Chipset, and is the crucial bit of info 🙂
What's the DeviceID? It's the next line, Chipset, and is the crucial bit of info 🙂
Forum Discussion
6 Replies
Hello! Thanks for replying 🙂 Device Id: 0x1002 0x6869 not sure if this is what you are after 🙂
Thanks 🙂 Right click on the game in your Applications folder and select Show Package Contents then navigate to Contents > Resources, then open the GraphicsCards.sgr file with TextEdit. Directly under the first line showing vendor "ATI" 0x1002 create a new line and copy/paste the following:
card 0x6869 "AMD Radeon Pro Vega 48" $cardLevelUber $resolutionHighThen quit the file and launch your game. How is it? After you close it please open the config file again and see it is now says [Found: 1, Supported: 1]
- @Bluebellflora Thank you so much! This worked and I went into my game and it runs like a dream! Amazing thank you again so much :D
- @Bluebellflora @Bluebellflora Hello! Thought you might be interested to know that performance was *greatly* improved after I downgraded to Mojave.
The game worked better, but was still quite chuggy and stuttery while playing in Catalina, but I downgraded to Mojave for 32 bit apps and the game ran much smoother, almost a solid 60fps at 4k max settings, only slight dips when moving the camera around Sims or builds. But few stutters. - @jackofallgamesYT
Great that you could go back to Mojave! Wonder if the drivers for the Vega in Catalina are the issue? My 2019 iMac is still running Mojave but I'm running Catalina on my MBP with AMD Radeon Pro 560 4GB and it runs well.
Thanks so much for the feedback, it's so helpful 🙂
