Isn't Extreme just going to be VSync limited on most devices? It is unfortunate that they don't have a 1080p Unlimited version, but it does make Unlimited GT1 an... interesting geometry testI know, don't kill the messenger or reviewer:
Sorry, but unlimited is so irrelevant. Surface 3 is a 1920x1280 device. How good or bad is its performance under Extreme? Or in GFX Bench (DX, Windows Store)?