Thermalright CPU COOLER

Hi , WHich one of these cpu cooler are better to o'c an i7 d0 to 4.0ghz

Thermalright extreme 120mm black
Thermalright extreme 120mm
Thermalright IFX
CoolerMaster V8

http://www.videopro.com.sg/product [...] ts_id=6799
http://www.videopro.com.sg/product [...] ts_id=4250
http://www.videopro.com.sg/product [...] ts_id=4253

Could you also tell me about the best fans to go with these heatsinks...


Between does led fans take a lot of electricity ?
My pc stay on 24/7...would it cost a lot more in a months to have 2 led fans than 2 normal ones ?

Thanks

Get this:
http://www.videopro.com.sg/product [...] ts_id=6444

Costs less and performs same or better than all of those listed.

Also the V10 is a very unwise choice and is dangerous for the motherboard.

Get the dark knight bro. It is cheaper and one of the highest performing heatsinks EVER.

Also 4 Ghz is not guaranteed unless you get a D0 stepping and even then ANY aircooling might not be fully sufficient if your case is not very well cooled.

Edit: My dark knight keeps my i7 920 @ 4.0 Ghz pretty well with an after market 110 CFM scythe fan and a case with 2 88 CFM scythe intake fans in the front, 2 exhaust ones on the top, and 2 39 CFM 92mm fans in the back. My temps are about 70c when at full load. Right now I am using a nice watercooling loop to cool it at 4.2 Ghz, but air cooling wont work at that voltage. Also note that I do not have a D0 stepping, sadly. Also note that my case houses some space heaters (2 4870 X2s at the time), so you wont need all that cooling.

You might want to read a good atricle on the subject:
http://benchmarkreviews.com/index. [...] itstart=16

The prolimatech megahalems tested best, but the thermalright is not far behind.

For best cooling, you can get a high output fan, but you will pay the price in noise. There are some real screamers available.
The review used a yate loon D12-SH-12 fan for the overclock tests.