Nvidia GT 750M video card with 2GB RAM
Direct Replacement for AMD Radeon HD 6770M
for Apple 27 inch iMac 12,2 A1312 2011 model only.
(Apple part numbers: 661-6023, 661-5967, 631-2052, 631-2053, 661-5944, 631-1841)
WILL NOT WORK IN ANY 21 inch or 24 inch iMacs !
WILL NOT FIT THE LARGER 5750 or 6970 Heat-sinks !
(check with me first if you are not sure which card you have)
Please
note this card uses a newer NVIDIA GPU chip which
supports the Metal API for running macOS Mojave, Catalina or Big Sur
Flashed with custom Apple firmware to enable Boot-screen and Brightness control.
(Heat-sink not included, re-use the current one, no modifications needed)