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Earl Urley

macrumors 6502a
Original poster
Nov 10, 2014
793
438
What would be better to drive two Pro Display XDRs in theory, a single Radeon Pro Vega II, two Radeon Pro Vega II, or the Radeon Pro Vega II Duo?

Assume regular Photoshop / graphics work, 2D design only..

I would imagine the Duo, since its Infinity Fabric Link would facilitate smoother window moves between monitors?
 

SecuritySteve

macrumors 6502a
Jul 6, 2017
951
1,085
California
The Duo would probably be best for performance, but each Vega II can drive two Pro Display XDRs. If you want to add more later, then you should get the Duo at a minimum.
 
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OkiRun

macrumors 65816
Oct 25, 2019
1,005
585
Japan
The Duo would probably be best for performance, but each Vega II can drive two Pro Display XDRs. If you want to add more later, then you should get the Duo at a minimum.
Yup ~ getting the duo frees up an MPX slot and you never know what's coming down the pike later.
 

goMac

macrumors 604
Apr 15, 2004
7,663
1,694
I would imagine the Duo, since its Infinity Fabric Link would facilitate smoother window moves between monitors?

Infinity Fabric requires special optimization for it to be used, and windows moving between GPUs is not one of those cases. It will make no performance difference for windows moving between screens.

If you want a dedicated GPU for each display, Duo is the way to go, but Infinity Fabric won’t do anything for the dual displays.

But it doesn’t sound like for your use cases you really need the Duo. Could probably do just fine with a single in since Photoshop is not a strong GPU app. Even a W5700X would be fine. The 580x is the only one I would avoid.
 
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