I can only really look back as far as the last generation but by this point in the console cycle (in fact well before this point) we had games like Farcry, Doom 3, Half Life 2, XPAND Rally and FEAR was either close or already released.
None of these really made use of any features apart from the extra performance compared to the consoles of that time.
Doom3 and HL2 have even been ported to the Xbox one without suffering major feature loss!