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Zalman CNPS11X Extreme CPU Cooler Review

By: Chad Sebring | CPU Air Coolers in Cases, Cooling & PSU | Posted: Aug 8, 2011 2:12 pm
TweakTown Rating: 86%Manufacturer: Zalman

Test System & Test Results


TweakTown uses a different method for testing CPU heatsinks which allows for an even playing field across all product tests. We feel that by using the same ambient temperature and strict lab-like testing procedures we are able to accurately compare one product to another. More information on our testing procedure can be found in the T.E.C.C. article here.




Testing on our TECC shows that this design is in fact, very efficient! The CNPS11X was capable of taking the fifth spot of all coolers, aside from custom water, that I have tested at these settings.




With the load testing finished we can see that the CNPS11X drops a few of spots from fifth in idle results to ninth in this chart. The temperature is better than the 10X and if it had potential for two fans, it might keep up with some of those other dual fan coolers in the list.




38 dB isn't amazing, but it is very good for the results we got in temperatures. As I mentioned, I'm guessing a total of 70CFM at maximum speed, so here I would take a stab and say these results are with 40-50 CFM.




With the full 12V running through the fan, I got some really good results. 50dB at maximum is pretty good. The CNPS series is quiet by design and with this rating there was a hum in the air, but there isn't an ear numbing noise in any fashion.

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