Nvidia GTX 675MX video card with 4GB RAM
Direct Replacement for AMD Radeon HD 5750 1GB
(Apple part number: 661-5578)
for Apple 27" iMac 11,3 A1312 2010 model only.
Please
note this card uses a newer NVIDIA GPU chip which
supports the Metal API for running MacOS Mojave & Catalina, Big Sur and newer.
Flashed with custom Apple firmware to enable Boot-screen and Brightness control.
Heat-sink mounting kit included – modified X bracket and thermal pads applied.