FrostyTech Synthetic Temperature Test Platform Results
Mfg.	Model	Ambient Temp.	27mm large copper block	15mm small copper block		27mm large copper block	15mm small copper block	Thermal pad	No. Fans	Fan Noise	Clip force
			50W	50W		100W	100W
Thermalright	SLK800	21.7	34.8	37.5		45.2	51.6	none	1	loud	med
Thermalright	AX-7	21.7	34.8	37.1		46.1	52.1	none	1	loud	med
Tocools	Novasonic	22.9	40.9	39.9		54.4	59.4	none	1	med	stiff
Coolermaster (high)	ASBV73U1	25.5	38.9	43.6		50.2	62.2	none	1	loud	easy
Coolink	U1P2	26.1	39.4	44.9		50.9	62.2	none	2	loud	easy
Arkua	628	23.9	42.7	42.1		58.9	62.3	none	1	med	med
Thermal Integration	TI-V77L	26.5	39.1	44.4		57.5	63.6	grey	1	med	med
Sibak	AC02625B	23.2	41.3	59.0		43.2	64.7	none	1	loud	med
Sibak	AC06725TH	22.5	42.9	46.2		61.7	67.7	none	1	Very loud	med
Coolermaster	HHC-001	21.7	40.0	44.8		56.3	68.1	none	1	loud	easy
Dynatron	DY1206BH-625	23.2	40.0	55.1		47.6	70.4	none	1	loud	stiff
AVC	Tundra2	22.0	41.4	47.5		59.0	71.1	none	1	loud	stiff
Vantec	CCK-6027D	27.4	45.4	49.6		64.9	73.4	none	1	med	med
Akasa	Ag Mountain2Q	21.7	42.4	48.5		61.2	74.5	none	1	med	med
Coolermaster	HSC-V62	21.4	47.4	52.8		61.7	74.5	none	1	quiet	easy
NengTyi	XPC5000	23.9	46.5	49.1		69.1	76.1	none	1	med	med
Spire	5F263	22.6	44.7	51.8		64.3	76.2	white	1	low	med
Titan	TTC-CU5TB	24.2	46.2	51.2		61.8	76.4	none	1	loud	stiff
Eumax	EU01	22.6	43.5	50.2		60.8	77.1	none	1	med	stiff
Taisol	CGK760092	23.4	42.7	51.3		61.2	77.5	pink	1	low	med
Spire	5T235	22.3	43.0	50.3		62.8	78.1	white	1	med	med
Zalman	CNPS6000-Cu	24.8	46.4	53.8		65.6	78.2	none	1	very low	easy
Taisol	CMK702	20.6	40.8	48.7		61.6	78.4	none	1	low	easy
AVC	112AM1	24.8	46.6	52.9		70.1	79.6	none	1	low	stiff
Coolermaster	HHC-L61	21.5	47.2	48.3		71.2	82.3	none	1	quiet	easy
Spire	5U213C1H36	19.8	45.8	54.4		67.1	83.3	pink	1	low	easy
Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
Verax	P14Cu	25.5	51.3	57.4		75.2	88.7	white	1	silent	easy
Akasa	AK821	22.7	49.4	57.2		74.1	93.2	grey	1	med	med
Verax	P11T	26.1	61.2	69.7		90.9	102.7	none	1	none	easy
Verax	P14	26.1	56.9	67.4		81.6	101.2	none	1	none	easy
			50W	50W		100W	100W

The copper base is 3mm thick. Rather than bolting it into place, Verax use CGDS to apply a layer of copper to the aluminum to which the copper base is soldered.

This seemingly inconspicuous silent heatsink retails for $69USD from Veraxfans.com, and with the aid of the Cold Gas Dynamic Spraying technology is able to outperform the all-aluminum Verax P14 heatsink by a little over 10 degrees Celsius. With the lower amounts of air being moved by the nearly silent CAIRdB fan, the designers at Verax have had to seek out innovative ways of improving the overall thermal performance of the remaining heatsink components. The use of CGDS is especially interesting as this is the first heatsink we have tested which makes use of this technology which is itself a little over 20 years old. Hopefully we will see more and more manufacturers adopt this technique and finally put an end to aluminum heatinks with copper bases which have been bolted on.

Thermally, the Verax P14Cu will run hotter than most lower-noise heatsinks, but as there are not very many zero noise heatsinks on the market it is difficult to draw direct comparisons since the noise levels of the other reference heatsinks are largely higher.

Intended for stock systems which are stable at slightly elevated temperatures, the Verax P14Cu would be a good heatsink to use in situations where case venting is first of all adequate, and secondly where computer noise output must be virtually nil. So long as you can accept the fact that the Verax P14cu will keep the AthlonXP processor within operational temperatures , the acoustic benefits are probably well worth it to many of you.