Nvidia GTX 675MX video card with 4GB VRAM


Direct Replacement for AMD Radeon HD 5670

(Apple part number: 661-5579, 109-B98557-00 )

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.


Flashed with custom Apple firmware to enable Boot-screen and Brightness control.

(Heat-sink not included, re-use the current one, no modification needed)


Each card is fully tested & working perfectly,

6 month replacement warranty included.