I am pretty sure all 38XX series, 36XX series, 34XX series. I could be wrong, but the 26XX series do as well I think. I have a 3450 which works great with my DVI-HDMI cable, Audio and everything!
Watercooling:
EK Supreme HF, EK FC GTX 680 Block, MCR320+Gelid Silent 12 Push/Pull, DD Pump, EK Multioption 100ml Res, EK Coolstream XT 220 RAD Gelid Wings Push/Pull.