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)
Gigabyte	G-Power Pro	high	18.6	71.9
Coolermaster	Hyper6	high	20.5	54.7
Thermaltake	Venus 12	high	21.7	68.1
ASUS	Starice	high	22.8	67.4
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
Gigabyte	3D-Rocket		28.9	50.7
Vantec	Mach1	high	29.2	56.9
CoolJag	SFO-D(18SC)		29.6	64.0
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
Verax	Quattro 1		36.9	30.9
Gigabyte	NeonCooler 8-BL		37.7	42.0
Titan	TTC-K8ATB/825/SC		38.7	63.1
Thermaltake	Venus 12	low	39.4	42.6
Evercool	K802-715		42.1	51.5
Thermaltake	Polo 735	low	44.5	42.3
Evercool	Magic Cooler		46.6	55.5
			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.

to illustrate just how similar the thermaltake polo735 and venus 12 heatsinks are, we've left in the complete results for the Venus 12 cooler in the above chart. The latter performs a few degrees better than the Polo735; most likely due to some slight fin and base dimensional differences. In any case, at the slowest fan speed setting, the Thermaltake Polo735 maintained a rise above ambient temperature result of 44.5°C - which is little poor. Clearly, this heatsink is not best suited to be a "low noise" AMD Ahtlon64 K8 heatsink.

With it's finger-chopping fan speed dialed all the way up to 5500RPM, the noisy Thermaltake Polo735 performs thermally very well, its rise above ambient temperature being just 23.4°C. Of course, at the same moment the heatsink is also making a 68 dBA racket.

Bottom line, the Thermaltake Polo735 offers up some pretty great noise-be-damned temperature results at its most aggressive fan speed setting. As a low noise heatsink, it falls short. Users looking to migrate between a K7 platform and a K8 or Pentium 4 based PC are best served by getting heatsinks designed for the latter two processors only. In this case, even though the Polo735 and Venus 12 are nearly identical, the subtle changes allow the Venus 12 to attain better results on a K8-based synthetic temperature test platform such as that used by FrostyTech.

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