Yea i think its 2021 3rd quarter drivers, i believe that's true.
And yea imo older drivers perform better. I have the following video cards, WX 4100, RX 570 8GB(OC Phantom edition ), WX 5100, WX Radeon Pro 7100, and 2 Radeon Pro W5500's. I have done alot alot of testing for hours, new drivers, new windows 10 install with selected updates, old drivers.
With the Radeon Pro W5500, the new drivers work just fine, but they don't perform as fast as the older drivers. Another problem with the w5500, the quality of video degrades using cyberlink and video players and quality in general, the colors are darker and looked washed out, with any driver that is using the "newer control panel/ui", so i use enterprise 20.q3. It only happens with this card. But 20.q3 is sort of buggy, watch dogs 2 relive creates stuttering and freezing , some other games may experience freezing when using relive. But i only found watch dogs 2 has it the most. The game brink fps uses opengl, man its awful 12-25fps. That watch dogs 2 freezing thing happens with all cards using 20.q3 i have though. Besides that, its the best driver for the w5500 only because of the image/video quaity cyberlink, etc is superior looking over the rest.
Another issue, the W5500 has a similar issue with Xt 5500, they both use 4.0 pcie, while these cards are pcie 3.0 x8 which limits performance. So overall my Radeon Pro WX 7100 is faster in some ways. But i use the w5500 despite some issue because again the video and image quality is better. I think the w5500 is a flawed card, i think the devs needed to make the card with 256bit bus and x16. looking forward to buying a w6600 though.
As for the RX 570 i notice a performance boost using 21.q3, any other driver above fps drops big time in games like Mafia 2, mafia definitive edition, and gear tactics, gear 5, etc. Brink gets a nice boost. Not saying the newer drivers enterprise or adrenalin or bad, they are good amazing drivers, but with my setup and cards the most performance comes from 21.q3 or adrenalin 20.8.3
The WX 7100 (i don't use wx 4100 or wx 5100, only for backup) , its wise to use 21.q3 drivers overall. So yea newer drivers don't mean best performance or overall best stability. I usually pick about 10 games and test each driver with those games using the same settings/benchmarks and see whats the best fps. Good luck though!
