iMacPro1,1 vs MacPro7,1 vs iMac20,2 on Rocket Lake (i7-11700K) + RX 6800 XT — which SMBIOS do you actually recommend in 2026?
Hey everyone, looking for opinions from people with real experience on this.
My build:
CPU: Intel i7-11700K (Rocket Lake)
Motherboard: Gigabyte B560 DS3H V2
RAM: 32GB DDR4 3200MHz
GPU: Sapphire RX 6800 XT 16GB (NootRX)
WiFi/BT: Fenvi T919 (BCM94360CD)
OS: macOS Tahoe 26.3.2
Bootloader: OpenCore 1.0.7
I was on MacPro7,1 for a long time and recently switched to iMacPro1,1 (needed -no_compat_check to boot). Geekbench 6 results: ~2000 SC / ~9500 MC.
Questions:
- Is iMacPro1,1 really the best choice for a dGPU-only Rocket Lake build in 2026, or would iMac20,2 (last Intel iMac) perform better despite being technically designed for Comet Lake?
- Anyone else needing -no_compat_check with iMacPro1,1 on Tahoe?
- Any SMBIOS giving better performance or stability for this config?