650m

Hello, with open core can I use a pc bios on the 650m on my 2012 21” iMac and upgrade it to 2gb of vram from 512mb using a pc bios and use open core to get the boot screen back?

hello, im looking at upgrading my macbook pros gpu to 4gb. i know on the mac pros you can run a non efi flashed gpu to have open core as the boot screen. but my question is can i use any 4gb boot rom, to flash to the apple 650m gpu in my macbook pro and then get the 4gb of vram on there and then...

I have a Macbook Pro Retina 15'' mid 2012 using bootcamp Windows 8.1 I've recently been noticing how my GPU the GT 650M is staying in P8 when I game which results in 68MHz clock with 98% load causing extreme lag. I've tried locking the P-state by creating a bat file with "nvidiaInspector.exe...