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de7eased

macrumors newbie
Original poster
Nov 5, 2022
2
1
can you put a GTX 780 in a Mac pro without frying the board? because I have one, but I’m very worried about that happening since the TDP is around 250 W and the recommended TDP for a card and a 5,1 Mac Pro is around 225, I have a sata to six-pin, and two mini six pins to six pins, and those six pins are being adapted, by an eight pin adapter to power the card, should I be worried about power at all?
 

zedex

macrumors 6502
Oct 21, 2018
312
134
Perth, WA
As quickly as possible.. I have run the GTX TITAN (KEPLER) in my Mac Pro without any issues. It has roughly the same architecture and identical PSU pinning [6+8] as the GTX 780. The TDP is pretty close to the nominal cMP threshold but *in my opinion* there is nothing you could do to "overload" the cMP with this GPU. I have done a lot of my own testing to form this view with conviction but others may have a different view.

A couple of my reasons.. (1) NVIDIA operating power requirements have very low variance compared to the power draw "spikes" seen with most recent generation amd cards. (2) unless you are GPU hardware rendering [blender, da vinci resolve] you won't be able to bring an NVIDIA GPU to peak load.

(I do get the sense of frustration from long time members but the GPU sticky thread isn't comprehensive and nvidia cards are no longer routinely discussed)
 
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