> sufficient tricks (that Intel GPUs lack)

Isn't it just being able to shift the window of GPU memory visible to the CPU?

Yes, intel lacks a remapping mechanism to support BAR smaller than the total VRAM size.

	▲	wtallis 9 minutes ago \| parent [-]
		Using an Intel discrete GPU on a system that lacks ReBAR support results in somewhat lower performance, not a complete inability to use more than 256MB of VRAM.