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
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
Coolink	U2P	27.1	40.6	47.6		55.3	67.6	none	1	loud	easy
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
Coolsonic	CS1662K	20.6	41.3	45.7		59.6	69.0	none	1	med	easy
Tocools	Crown	23.2	38.8	53.2		47.9	70.2	none	1	loud	stiff
Dynatron	DY1206BH-625	23.2	40.0	55.1		47.6	70.4	none	1	loud	stiff
Coolink	H2T	27.1	44.5	49.0		60.8	70.9	none	1	med	easy
AVC	Tundra2	22.0	41.4	47.5		59.0	71.1	none	1	loud	stiff
Coolink	U1L2	26.1	42.3	51.1		57.9	72.2	none	2	med	easy
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
Coolink	U2L	27.1	45.6	52.6		62.7	76.2	none	1	med	easy
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
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
Ajigo	MF014-021	27.8	47.6	54.0		65.6	78.5	grey	1	med	med
Ajigo	SF017-011	27.2	47.5	55.1		65.7	78.9	grey	1	med	med
AVC	112AM1	24.8	46.6	52.9		70.1	79.6	none	1	low	stiff
Coolink	H1T	27.1	49.2	53.6		69.4	79.9	none	1	med	easy
Sibak	AE01625B	23.5	40.8	54.4		57.1	81.0	none	1	loud	easy
Coolermaster	HHC-L61	21.5	47.2	48.3		71.2	82.3	none	1	quiet	easy
Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
JMC Products	400023	23.1	44.5	65.2		55.3	85.2	Chomerics T725	1	low	easy
Akasa	AK821	22.7	49.4	57.2		74.1	93.2	grey	1	med	med
Sibak	AT01515B	23.0	45.1	64.6		60.1	95.2	none	2	med	stiff
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

Faced against such a large list of heatsinks (we really ought to cut this list down to just 10 or so right?) the Coolsonic CS1662K comes in upper mid level. A respectable area to be sure, but not a heatsink we can call a "performance cooler." In any case, the CS1662K is a very good heatsink that should be able to handle a little overclocking here and there.

The full copper construction, and widely spaced skived copper fins work well together, making the CS1662K appropriate for any stock AMD AthlonXP processor on the market right now. Noise levels are not in the "quiet" range, but since we measured the heatsink at just 50.4 dB it is likely to get drowned out in an average case by either the power supply or videocard cooler.

The base of a copper heatsink can be the most important area of the heatsink as most of us are concerned. In that regard the Coolsonic was good, but not amazing. It was evident that the copper base had been milled flat, but then the entire surface was sanded which introduced some more roughness. As a final note, the clip would have been much more desirable if it was one which used all three tabs on the socket.

Bottom line; a very good heatsink but not a performance cooler - good for any stock AMD CPU, and for those who might want to get a taste of overclocking.

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