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
1	Arkua	628	23.9	42.7	42.1		58.9	62.3	none	1	med	med
2	Thermal Integration	TI-V77L	26.5	39.1	44.4		57.5	63.6	grey	1	med	med
3	Sibak	AC02625B	23.2	41.3	59.0		43.2	64.7	none	1	loud	med
4	Swiftech	MCXC370	21.4	38.3	43.4		53.5	65.7	none	1	med	med
5	Tocools	Crown	23.2	38.8	53.2		47.9	70.2	none	1	loud	stiff
6	Dynatron	DY1206BH-625	23.2	40.0	55.1		47.6	70.4	none	1	loud	stiff
7	Vantec	CCK-6027D	27.4	45.4	49.6		64.9	73.4	none	1	med	med
8	Cybercooler	P5750	23.3	43.4	63.5		49.2	74.9	none	1	loud	med
9	Swiftech	MCX370	22.3	42.0	46.1		60.3	75.6	none	1	med	hard
10	NengTyi	XPC5000	23.9	46.5	49.1		69.1	76.1	none	1	med	med
11	Taisol	CGK760092	23.4	42.7	61.2		51.3	77.5	pink	1	low	med
12	Zalman	CNPS6000-Cu	24.8	46.4	53.8		65.6	78.2	none	1	very low	easy
13	AVC	112AM1	24.8	46.6	52.9		70.1	79.6	none	1	low	stiff
14	GlacialTech	Igloo 2310	23.5	44.9	66.7		53.7	80.8	silver	1	med	very stiff
15	Sibak	AE01625B	23.5	40.8	54.4		57.1	81.0	none	1	loud	easy
16	Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
17	JMC Products	400023	23.1	44.5	65.2		55.3	85.2	Chomerics T725	1	low	easy
18	Sibak	AT01515B	23.0	45.1	64.6		60.1	95.2	none	2	med	stiff
				50W	50W		100W	100W

I've been getting a few email's about how we order these charts, so let me just say that we go by the 100W test results on the small interface die. Since these are the results everyone is most interested in it makes the most sense. Now getting onto the results for the Cybercool; the heatsink performs above expectations from our standpoint. The initial results are placing it as a mid-level heatsink which is pretty good for a somewhat obscure manufacturer.

Rise Above Ambient Temp. (c)
	Mfg.	Model	27mm large copper block	15mm small copper block		27mm large copper block	15mm small copper block
			50W	50W		100W	100W
1	Thermal Integration	TI-V77L	12.6	17.9		31.0	37.1
2	Arkua	628	18.8	18.2		35.0	38.4
3	Sibak	AC02625B	18.1	35.8		20.0	41.5
4	Swiftech	MCXC370	16.9	22.0		32.1	44.3
5	Vantec	CCK-6027D	18.0	22.2		37.5	46.0
6	Tocools	Crown	15.6	30.0		24.7	47.0
7	Dynatron	DY1206BH-625	16.8	31.9		24.4	47.2
8	Cybercooler	P5750	20.1	25.9		40.2	51.6
9	NengTyi	XPC5000	22.6	25.2		45.2	52.2
10	Swiftech	MCX370	19.7	23.8		38.0	53.3
11	Zalman	CNPS6000-Cu	21.6	29.0		40.8	53.4
12	Taisol	CGK760092	19.3	37.8		27.9	54.1
13	AVC	112AM1	21.8	28.1		45.3	54.8
14	GlacialTech	Igloo 2310	21.4	43.2		30.2	57.3
15	Sibak	AE01625B	17.3	30.9		33.6	57.5
16	Thermaltake	Volcano 6cu+	13.8	28.8		32.1	57.9
17	JMC Products	400023	21.3	42.0		32.1	62.0
18	Sibak	AT01515B	22.1	41.6		37.1	72.2
			50W	50W		100W	100W

There is no difference in position between the initial test results and the final rise above ambient temperature results. The Cybercooler P5750 performs at just above 50 degrees above ambient on the 100W test and small interface die. This is not the best performance by any means, but for its size and materials pretty average.

At first glance it would seem that those soldering lines and flux marks are hiding a pretty good thermal interface which is not always the case. The little copper heatsink is not going to do it for overclockers, but for a nice XP system this heatsink should be sufficient to keep temperatures in check for normal use.