Apple Apple Mac Pro Display Connectivity If Apple's Thunderbolt routing had taken into account all of the display capabilities of these GPUs and had utilised the 128 PCIe 4.0 lanes from an AMD Epyc 7002-series processor, the four GPU combo would be capable of driving sixteen 4K displays with resolutions of 3840 x 2160 at 60Hz.
Apple Mac Pro Goes Mad for Graphics and Displays How many displays and pixels can a Mac Pro handle when using all 12 Thunderbolt ports to drive eGPUs (Radeon VII) with three 8K and one 4K display and eight Pro Display XDRs daisy-chained to the eGPU enclosures. 1,470,504,960 pixels