Well I started on C64, but could not afford an Amiga. That's a different story.
PC wise, not counting the DOS era, and there was plenty of that. I think my Voodoo1 card in like 1997. GLquake, Shadows of the empire, GL Tomb Raider, all good stuff. Anyone remember Forsaken? That game looked amazing on 3dfx, made me motion sick like crazy but it was so cool looking. Was like a real 3d Descent, with multiplayer... oh man so much fun but I had to be drunk to play it. At work they would have these huge Quake / Quake 2 lan parties, and I would take my rig up there and people would freak the hell out. Watch the before and after on this video. Yeah it looks like xbox 1 or worse now, but in 1997, this was A Big Deal. Watch the software mode, then jump to 3:15 to be blown away.