Gainward 6800GT that runs at 400/1000 (just a core overclock, not much gain from smaller memory overclocks in comparison to decent core overclocks)
Had it for over a year, upgrade every other generation (had GF4 and GF2 previously)
Stock cooling (Gainward's was one of the best of the 6800 series, but certainly loud as well unless the fans were slowed down through software)
No card mods