- May 29, 2013
- Gigabyte Z390 M Gaming
- i9-9900K OC'd @ 5.0GHz
- Vega 56 (Bios flashed to 64)
- Classic Mac
- Mobile Phone
I ran a bunch of geekbench 5 tests on clover EFIs 5120 and 5126, testing iMac19,1 and iMacPro1,1, on Catalina and Big Sur (5126 only of course). I think the problems I was having in FCPX on 5126 seem to show up in the GPU benchmarks. My BIOS settings are same as my recent post, overclocked (with vcore on Auto). Note I left iGPU enabled when switching back over to iMacPro1,1, I didn’t think it messed things up but I’m not certain.
The numbers show a big performance hit after 5120 on Catalina. I didn’t test 5122 but probably will later on. I found the same problems with OpenCore 0.6.3 on Catalina, and didn’t chase OpenCore versions back to find better scores, 0.6.3 was my first OpenCore experience. I’m just guessing, but could this performance hit have to do with the OpenRuntime switch? It seems the wisest to stay on 5120 for a Catalina build, but I’m unsure about compatibilities with future Catalina updates on the older clover.
Even though things seem to have went south on Catalina, the Big Sur benchmarks look promising
Clover itself shouldn't have any affect on dGPU. The only thing that should have any affect would be WhateverGreen. RadeonBoost.kext dropped support for Navi cards a while back.