Excerpt: Sooo... I have a big case (HAF 932) but I am in a very dusty area. I taped a 12" x 12" heater filter on the side intake fan, all the other fans blow out. I used the Asus Fan Expert software to make my fans run at 100% as soon as the CPU gets to 77*F My room at the time was 86*F. I fired up Prime95 which slams all 8 cores of the CPU to 100% load HUH-LO! The temperature only rose to 113*F (45C), easily within the normal operating range.
Summary: I do HiDef video editing with Vegas Pro, Premiere Pro and After Effects. I'm using an i7-3770 with a fast, solid state hard drive as C drive. Was getting overheating alarms with the stock cooler when I was rendering videos. Upgraded to this Cooler Master and I can crunch the most demanding video composites without any overheating. The fan runs so quiet that I can't tell that my computer is on.
Summary: My FX-6350 stock fan was ridiculously loud. It kept my CPU at about 55-60 degrees C. This cooler is very quiet, and it keeps it from 40-45 degrees. Keep in mind it's not a small cooler. It barely fit in my NZXT Phantom 240p case.
Summary: I originally got a Corsair H80i and holy cow! that thing was so dang loud!it truly got annoying after the first night, also the cpu kept it around 40 degrees celcius under load which was alot better then stock CPU, so i went the next day and returned it for thius Hyper 212 EVO, i was skeptical at first since it wasn't a liquid cooler but i brought it home and installed it, im getting 35 degrees Celsius under load and it is soooooooooo quite! im in love!
Summary: I've used liquid CPU coolers in the past, but now I wonder why I bothered. This works great. Why it works is not complicated: it's the largest heatsink you can fit in a standard case. It comes with one 120 mm fan, and you can add another, but the fan is almost superfluous. It's all about throwing the maximum amount of copper and aluminum at the problem. The only con: You have to remove the motherboard to attach a backplate.