Information not expressly stated in the Final Rise above Ambient Temperature Test Results List concerns the pre-applied thermal pad (we remove this for testing any way), the number of fans on each heatsink, general fan noise and clip force observations, and ambient temperature measurements. As always, FrostyTech's Synthetic Temperature Test results for the Socket 478 Intel Pentium 4 platform are grouped according to the results for the 100W test die.

FrostyTech Synthetic Temperature Heatsink Test Results: *Ranked according to 100W interface die test results.

( Socket 478 - Pentium4 ) Rise Above Ambient Temp. (C)
Mfg.	Model	27mm large copper block		27mm large copper block
		50W		100W
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
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		100W

Given the low speed of the fan employed on the Scythe SCKK1000 heatsink, we were actually anticipating slightly lower results from the cooler. However, Scythe must have their thermal design well engineered, as the SCK1000 Kama cooler comes in towards the upper-middle of this list of reference heatsinks.

With a lower noise output, the Scythe Kama cooler should be a good thermal solution for mainstream computer systems. There are no fan speed controls to fiddle with, and installation is straightforward on either socket 478 or socket 754/939 platforms. The only possible concern is the weight of the heatsink (575 grams)which goes beyond the weight limit specified by Intel... best to remove this cooler before shipping a system anywhere!

For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 350+ heatsink reviews.

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