With the system running at stock speeds, the Hydro Series H70 with the fans on high did rather well coming in at 55.75*C, one degree behind the Cooler Master V6GT. Also the difference between fans in exhaust and intake orientation was only 0.25*C. With the fans in low speed mode they were quieter, but the system ran a little warmer coming in at 57.5*C set for intake and 58*C set for exhaust. Roughly a two degree difference from high to low.
With the system overclocked to 3.5GHz the heat climbs. With the fans on high the Hydro Series H70 still only differs 0.25 degree between set for intake or exhaust. Coming in at 64.5*C the H70 was 2.25 degrees behind the top cooler the Noctua NH-D14. Again, on the low speed setting the H70 dropped back in the pack a little but still only about a one degree difference from high to low.
With the heat really cranked up we have the system running at 3.8GHz. With the fans set up for intake the Hydro Series H70 dumped massive amounts of heat into the case. The M998 case I have for the test bench just could not get the heat out as fast as the fans were dumping it in. With it set for intake the temps sat at a toasty 79.25*C. With the fans switched around for exhaust it’s a way different story. The temps were at a very nice 74.5*C. It’s two degrees cooler than the massive Noctua NH-D14, but 17 degrees warmer than our custom water loop with a Swiftech Apogee XT. Then again, the Hydro Series H70 cost 1/3 that of our custom loop.