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Anthony TerBush

macrumors newbie
Original poster
Oct 23, 2020
1
0
Hi all, was running High Sierra (thank you dosdude1) and all was good with the Geforce GTX 750ti graphics card. I am seeing conflicting answers regarding if I can use this card with Catalina on my Mac 3,1. I need to maintain 4 video outs.

@dosdude1

If this card is not compatible, what card would you recommend with 4 vid out.

Searched FB Mac 3,1 page for post regarding topic (yes I am doing my homework).



Thanks!!
 
Last edited:

tsialex

Contributor
Jun 13, 2016
13,455
13,602
Hi all, was running High Sierra (thank you dosdude1) and all was good with the Geforce GTX 750ti graphics card. I am seeing conflicting answers regarding if I can use this card with Catalina on my Mac 3,1. I need to maintain 4 video outs.

@dosdude1

If this card is not compatible, what card would you recommend with 4 vid out.

Searched FB Mac 3,1 page for post regarding topic (yes I am doing my homework).



Thanks!!
GTX 750Ti is a Maxwell generation GPU, Maxwell cards were supported by NVIDIA own web drivers that never were issued after High Sierra. Maxwell/Pascal/Tesla GPUs are not supported by macOS since Mojave was released. NVIDIA driver support Mojave onwards are exclusively for NVIDIA GPUs of the Kepler generation that can work with Apple native NVIDIA drivers.

Apple never supported a GPU newer than Kepler with macOS, since no Mac has a NVIDIA GPU newer than GTX 780M, while most Kepler GPUs can work with Apple native NVIDIA drivers, some don't or have problems like GT 740 KPs after a day or so. GTX 670/680/770/780 are the most common used Kepler GPUs with Mojave/Catalina with a MP3,1 and usually work fine, but always check the forum for known problems searching for the part number of the GPU.

Another thing, remember that the mobile versions of NVIDIA 7xx GPUs used on iMacs late-2013 and rMBPs mid-2014, the GTX 750M and 755M, are still Kepler and not Maxwell like the GTX 750Ti, so the mobile version of the card still works with Mojave/Catalina while the desktop not.
 
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Ludacrisvp

macrumors 6502a
May 14, 2008
797
363
as was mentioned it wont work. i would look at getting a rx 570/580.
they can run 5 displays and are usable on the 3,1 With the help of syncretic’s SSE4.2 emulation and get a free 3rd party boot screen using opencore or dayo’s refind plus Without needing to do gpu flashing.
 

r6mile

macrumors 65816
Feb 3, 2010
1,004
504
London, UK
I have a 3,1 and a GTX 750Ti. But wanted to upgrade to Mojave and stop messing with nVidia Web drivers. So I've just sold the 750Ti for £45 locally and bought a GTX 780Ti for £80 from a reputable second hand reseller. It's the most powerful consumer Kepler card.

Cheaper than the RX580 and offers very similar performance, and works in El Capitan also (unlike the 580) which I think is important as a backup as it's the last supported OS. Also doesn't require the MouSSE emulator to run in a 3,1.

Will let you know how I get on!
 
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