EVGA GTX 970 SC ACX 2.0
Right now I'm at 1512 MHz on stock voltage (+120). Temps get up to 72 C in FurMark, but my fan profile is set to max out at 50% and it runs quiet, so I'm very comfortable with that. This thing boosted to 1392 MHz right out of the box, which is just bananas. I haven't bothered OC'ing the memory yet.
I read a lot of negative feedback on various forums about how awful the EVGA versions are, but I'm experiencing zero coil whine, and as long as you keep a conservative fan profile, it's crazy quiet. And you can overclock the nuts off it.
FWIW, I ran Heaven 4.0 and scored a
1977 (78.5 FPS) using the default "Extreme" 1600 x 900 setting (not 1920 x 1080; I like to OC using a window and burn-in at 1080).