Nvidia GTX 675MX video card with 4GB RAM

Direct Replacement for AMD Radeon HD 6970M

(Apple part numbers: 661-5968 or 661-5969)

for Apple 27" iMac iMac12,2 A1312 2011 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 mounting kit included – modified X bracket and thermal pads applied.

(Heat-sink not included, re-use the current one)


Each card is fully tested & working perfectly,

6 month replacement warranty included.


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