This thing rocks! I put it into a pull-only configuration so as to minimize dust build-up, and the temps have remained steadily lower than they were with the old cooler. I recently downloaded a very resource-intensive game, Thief from last year, and running it at medium graphics with this new cooler gives my CPU an under-load temperature of roughly 46 degrees Celcius. Considering that with the old cooler, an older game like Team Fortress 2 would have the same CPU up as high as 59 degrees Celcius, that is an amazing improvement.