I do recall that there was an compute error with new GPU, SETI for example blocked the card from submitting resutls due to accuracy. Now fixed with latest driver.
If you do upgrade, can you test and ping back the results. Wonder if that has anything to do with it.
https://www.techpowerup.com/262814/amd-releases-radeon-software-adrenalin-20-1-1
Pretty much no change.
Thats good at least for you (and potential other Navi users?)
Question then why are non Navi (Vega and Polaris) users see a noticable reductionā¦
will have to make a post asking other Navi users to post their 2.80 vs 2.81a+ to see they woudl see similar performance
Big thanks for all the information
Same hereā¦ i wrote something today
Iāll really hope that some formal response from Ton woudl be provided to either reassure OpeNCL support, or notā¦
Redoign shaders for each render engine is a tad too time consumingā¦ if ProRender was 100% transparent with Blender nodes, I would be using that onlyā¦
Your post might have got some traction.
My inital bug report on OpenCL slowdown was updated yesterday : https://developer.blender.org/T71479
" Marking as high priority since this is something we want to address for the 2.83 release. @Jeroen Bakker (jbakker) has submitted a patch to use OpenCL 2.0 which will helps, but currently requires some manual configuration which Iāll try to find an automatic solution for."
Wellā¦ letās hope! finger crossed.