Running the system at the stock settings with Turbo and Hyper Threading on, the Intel RTS2011LC comes in at a 66*C under full load; at idle the system throttles to 2.7GHz so the idle temps show up at just under 30*C. The Noctua NH-D14 air cooler could be considered one of the best, if not the best, air cooler available, and at $85 is roughly the same cost as the Intel RTS2011LC. The Noctua Nh-D14 comes in at a very nice 51.33*C, 15 degrees cooler than the Intel RTS2011LC. The Noctua was MUCH quieter than the fan on the Intel cooler.
Using the Intel RTS2011LC I then pushed the system as far as I could and be stable. The Intel RTS2011LC came in at 74.50*C under full load. The Noctua NH-D14 came in at 67.57*C.
I tried to run the Intel RTS2011LC at 4.6GHz and the system would blue screen after 5-6 minutes of prime95. I wanted to see if it was heat related. So, when I put the Noctua NH-D14 on the test system I was able to push it to 4.63GHz. The NH-D14 handled the heat and came in at 71.67*C. I tried to get the system to 4.7GHz and the system wouldn’t even pass POST with Hyper Threading enabled.