I just got one my idle temps remained the same as the cooler master 612 when i tested my 3930k @ 4.6 GHz in the low 40's range BUT my temps at load were dramatically improved and ran in the low 50's range compared to the the mid 60's with the cooler master 612 and the cooler itself was much quieter than the old one. I normally keep my cpu running a bit slower when not benching though and it's nearly silent which is a major plus for me. So yes I would go with the h100 rather than the noctua, it looks better, you'll get a few degrees cooler, a 5 year warranty and it looks much better than the noctua NH-D12.