Question Vega 8 performance drop after BIOS update

Oct 10, 2019
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Hello,
i have a 2200g system with a Biostar B350GT3 mobo and noticed that if i upgrade my BIOS version there is a significant performance hit on the iGPU.
The difference is around 40% in some tests, like Unigine Heaven.
This happens with all ComboAM4 versions, works fine with Pinnacle BIOS.
Anyone with a similar problem?
 
Oct 10, 2019
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AGESA Pinnacle PI 1.0.0.4c works fine
AGESA ComboAM4 PI 0.0.7.2 onwards with performance drop
Testing the AGESA ComboAM4 PI 1.0.0.3ABBA at the moment, everything is working fine, with some new features in BIOS, the only problem is the iGPU performance.
I've searched it somewhat extensively, didn't find any mention about this, was curious if this happens with other boards or cpus.
 
Oct 10, 2019
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Well, just rolled back to te Pinnacle PI 1.0.0.4c version, everythin alright. Just wondering how and why this would happen, i assume Ryzen 3000 APUs aren't that different from the previous generation. As nobody mentioned this before, maybe something with my board only? Anyway, if someone with a 2nd gen APU tried or would like to try the newer BIOs to testify i would appreciate. I was thinking this could be a probem if someone buys an updated board with and a older APU probably would wonder about the difference from the available benchmarks.
 

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