Hello,
I'm trying to get my Sapphire HD 7790 2GB OC working in 10.8.4 (this model is still unconfirmed apparently, and since it's the newest model in the HD 7xxx range, I really hope that it's supported)... The strange thing (or perhaps not) is that video output has worked from the start (I guess it's using a generic driver) and I've been able to install Mountain Lion without having to use/switch to my onboard HD3000..
Anyway, I've tried to install the AMDRadeonAccelerator.kext and ATI7000Controller.kext using KextBeast by putting them on the desktop, running KextBeast and then rebooting, but that didn't seem to work.. Here's the current System Information output:
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 8 MB
Vendor: ATI (0x1002)
Device ID: 0x665c
Revision ID: 0x0000
Kernel Extension Info: No Kext Loaded
I'm still new to osx86, and hoping that someone can help me figure out if this card is supported with the new drivers and what I have to do to get it running.
Thanks!