A MacBook Pro supporting four AMD Radeon Pro VII GPUs is capable of driving:

  1. Two Pro Display XDRs or 6K displays with resolutions of 6016 x 3384 at 60 Hz and 12 8K displays at 7680 x 4320 60 Hz
  2. Two 5K displays with resolutions of 5120 x 2880 at 60Hz and 12 8K displays at 7680 x 4320 60 Hz
  3. Four 4K displays with resolutions of 4096 x 2304 at 60 Hz, 12 8K displays at 7680 x 4320 60 Hz and four 4K displays with resolutions of 4096 x 2304 at 60 Hz

Apple claims the four GPU combo Mac Pro is capable of driving:

  1. Six Pro Display XDRs or 6K displays with resolutions of 6016 x 3384 at 60Hz
  2. Six 5K displays with resolutions of 5120 x 2880 at 60Hz
  3. Twelve 4K displays with resolutions of 3840 x 2160 at 60Hz

Apple's four GPU combo is capable of driving:

  1. Eight Pro Display XDRs or 6K displays with resolutions of 6016 x 3384 at 60Hz
  2. Eight 5K displays with resolutions of 5120 x 2880 at 60Hz
  3. Sixteen 4K displays with resolutions of 3840 x 2160 at 60Hz

Apple's Mac Pro with two AMD Radeon Pro VEGA II Duo MPX modules is capable of a maximum of 162,865,152 pixels.

Apple's MacBook Pro with four AMD Radeon VIII GPUs is capable of a maximum of 438,847,488 pixels.

If the same treatment were to be applied to the Mac Pro, it would be ridiculous.