FrostyTech.com Mk.II Synthetic Thermal Heatsink Test Results Results based on readings from a 38x38mm copper interface die with 125W heat load on the Mk.II Test Platform. Thermal Test values for each heatsink were calculated by determining the rise over ambient temperature at time of test. Information on Frostytech's test methodology is available here. Socket 939/940/754 compatible CPU heatsinks
manufacturer:	model no.:	*fan speed:	125w thermal test (°c)	noise level (dba)
Noctua	NH-U12		17.5	45.4
Gigabyte	G-Power Pro	high	18.6	71.9
Noctua	NH-U9		18.8	58.4
Coolermaster	Hyper6	high	20.5	54.7
Thermaltake	Venus 12	high	21.7	68.1
ASUS	Starice	high	22.8	67.4
Arctic Cooling	Freezer 64 Pro		23.2	50.9
Coolermaster	Aquagate Mini	high	23.2	59.2
Thermaltake	Polo 735	high	23.4	68.0
Cooljag	SFO-H	high	23.6	60.6
Alpha	PAL-8150		23.7	58.9
Zalman	CNPS9500LED (clip parallel)	high	23.8	50.3
AVC	Z7U3301001 (stock 939)	high	24.6	59.9
Gigabyte	3D Cooler-Ultra	high	24.8	63.0
Scythe	Shogun	high	26.0	45.9
EKL	V8	high	26.3	57.5
Gigabyte	3D Rocket-Pro	high	26.9	56.7
Gigabyte	3D Cooler-Pro	high	27.0	62.5
Spire	SP601B3		28.3	48.9
Ajigo	MF064-074	high	28.8	60.3
Gigabyte	3D-Rocket		28.9	50.7
Vantec	Mach1	high	29.2	56.9
CoolJag	SFO-D(18SC)		29.6	64.0
Arctic Cooling	Alpine 64		30.5	43.9
Zalman	CNPS7000A-Cu	high	30.3	45.2
Dynatron	SK-V24		30.3	56.4
Zalman	CNPS7000-Cu	high	31.0	45.2
Coolermaster	Hyper48		31.7	43.6
Scythe	Kama SCKK1000		31.9	47.5
Scythe	Samurai SCSM1000	high	32.1	51.6
Zalman	CNPS7000B-CU	high	32.3	44.9
Thermaltake	Silentboost K8		32.3	49.7
Jetart	JAX801		33.2	53.5
Dynatron	A22		34.5	44.5
nPowertek	NPH K8-1		34.6	52.2
Ajigo	MF043-044 (stock 754)		35.0	45.4
Gigabyte	3D Cooler-Ultra	low	35.2	42.8
Gigabyte	3D Rocket-Pro	low	36.6	43.8
Verax	Quattro 1		36.9	30.9
Arctic Cooling	Silencer 64 Ultra TC		37.5	55.5
Gigabyte	NeonCooler 8-BL		37.7	42.0
Titan	TTC-K8ATB/825/SC		38.7	63.1
Evercool	K802-715		42.1	51.5
Gigabyte	3D Cooler-Pro	low	42.4	38.8
Spire	SP741B3		43.2	45.6
Evercool	Magic Cooler		46.6	55.5
ASUS	Starice	low	92.4+	34.4
			125w thermal test (°c)	noise level (dba)
*heatsinks are ranked according to the 125w thermal test results column (rise over ambient temp). low temperatures with low noise levels are considered best. for reference heatsinks with variable-speed fans, only the high speed (12v) fan test result is included in the comparison sheet; more detailed results reside in each specific heatsink review.

with a 125w heat load applied by the frostytech k8 synthetic thermal test platform, the Gigabyte 3D Rocket Cooler-Pro (PCU22-VG) heatsink posts very good thermal results with the 50mm squirrel cage fan spinning at its full speed, and more conservative results when its fan speed is quietly operating at 2500RPM. At the quietest fan speed setting, the 3D Rocket Cooler-Pro produces a rise above ambient temperature of 36.6°C with 56.7 dBA noise. Its loudest fan speed setting is an annoying 56.7 dBA, and from this we see a rise above ambient temperature result of just 26.9°C!

On the whole, the Gigabyte 3D Cooler Pro PCU22-VG cooler performs well, coming in about middle of the pact on average. As a multi-processor cooling solution the 3D Rocket Cooler-Pro performs very well with a moderate-to-loud noise output of about 56.7 dBA. It's a good option for mainstream users with spacious cases, but really only if the fan speed is dialed down and noise levels hover closer to the 43.6 dBA baseline.

If you're looking to upgrade from one platform to another in the near future, an all-in-one heatsink such as the 3D Rocket Cooler-Pro PCU22-VG is a good model to consider. The only real downside is the lack of clear support for socket AM2 AMD processors.

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