Information not expressly stated in the Synthetic Rise / Ambient Temperature Test Results lists concerns the pre-applied thermal pad (removed for testing), the number of fans on each heatsink, general fan noise and clip force observations, and ambient temperature measurements. All values are quoted in degrees Celsius. FrostyTech's Thermal Test Reports are separated by the socket formfactor, not processor name.

Socket 478

FrostyTech Synthetic Rise Above Ambient Temp. (°C) Test Results Manufacturer: Model No.: 27mm2 Interface Die 27mm2 Interface Die 50W Thermal Test 100W Thermal Test Gigabyte (high) PCU31-VH 12.5 22.3 Coolermaster (high) Hyper6 KHCV81U1 12.4 23.4 Asus (high) Crux P4 XB7N 13.9 24.4 Zalman CNPS7000A-Cu 12.4 24.9 Alpha S-PAL8952 12.7 25.4 AVC Z7U7408001 12.9 25.8 Alpha PAL8942 14.7 26.1 Gigabyte (high) 3D Cooler Pro 15.6 26.6 Zalman CNPS7000-Cu 14.1 27.7 AVC 117140 15.2 27.8 JMC Products 401100 15.6 27.9 Coolermaster (high) Jet4 12.6 28.1 Taisol CEP447181 14.6 28.7 Jetart JAP416A 11.8 29.1 Thermal Integration TI-A8736N 12.4 29.1 Arkua 8568 15.4 29.3 Intel Stock 3.06GHz 15.0 30.1 Scythe SCKK1000 15.9 31.0 Gigabyte PCU22-SE 17.3 31.3 Vantec VP4-7245 18.0 31.7 Verax Polargate AL S 17.0 32.9 AOpen ACP4SH 17.4 33.0 Scythe (6" dist.) NCU-2000 17.2 33.4 Scythe Kamakaze 18.9 34.1 Spire SP420B8 17.4 36.2 Evercool NW9F715CA 19.1 38.5 Aopen ACP4LC 17.9 38.8 Evercool NW11F 22.2 42.4 Arctic Cooling SuperSilent4 Pro 21.7 43.0 Verax P16Cu 22.0 45.1 Verax (high) P17CuX 27.8 47.6 Cooljag 2QC/180 29.3 60.1 Cooljag JACE2DC/180 30.7 61.6 Cooljag E44C/180 33.8 66.9 Dynatron DC1U-B02 32.9 67.4 50W Thermal Test 100W Thermal Test *Ranked according to the 100W thermal test results column.

The final rise above ambient temperature synthetic temperature platform test results indicate that the Evercool NW11F-CLB825CA/LD2 heatsink is not especially impressive as far as a mainstream socket 478 heatsink would go.

It performs below the stock Intel heatsink, with a rise above ambient temperature of 42 degrees, and for its 49.6 dBA of noise, the warmer temperatures are not as easily accepted. Performance on the 100W temperature test (which is used to gauge its thermal performance in particular) is satisfactory, and will allow processors to run, but there are quieter and cooler running solutions out there from which to choose.

In this regard, the NW11F's overall properties as a lower-noise heatsink are less than compelling, and just simply 'satisfactory.'