Synthetic Temperature Test Results: *Ranked according to 100W small interface die test results.

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	Coolermaster	HHC-001	21.7	40.0	44.8		56.3	68.1	none	1	loud	easy
6	Tocools	Crown	23.2	38.8	53.2		47.9	70.2	none	1	loud	stiff
7	Dynatron	DY1206BH-625	23.2	40.0	55.1		47.6	70.4	none	1	loud	stiff
8	Cho-Liang	CB0307U17	23.0	40.4	45.8		57.5	70.3	none	1	med	stiff
9	Vantec	CCK-6027D	27.4	45.4	49.6		64.9	73.4	none	1	med	med
10	Coolermaster	HSC-V62	21.4	47.4	52.8		61.7	74.5	none	1	quiet	easy
11	Cybercooler	P5750	23.3	43.4	49.2		63.5	74.9	none	1	loud	med
12	Swiftech	MCX370	22.3	42.0	46.1		60.3	75.6	none	1	med	hard
13	NengTyi	XPC5000	23.9	46.5	49.1		69.1	76.1	none	1	med	med
14	Spire	5F263	22.6	44.7	51.8		64.3	76.2	white	1	low	med
15	Titan	TTC-CU5TB	24.2	46.2	51.2		61.8	76.4	none	1	loud	stiff
16	Taisol	CGK760092	23.4	42.7	51.3		61.2	77.5	pink	1	low	med
17	Cho Liang	CB0315U17	28.5	46.9	56.0		64.2	77.5	none	1	med	med
18	Spire	5T235	22.3	43.0	50.3		62.8	78.1	white	1	med	med
19	Zalman	CNPS6000-Cu	24.8	46.4	53.8		65.6	78.2	none	1	very low	easy
20	Ajigo	MF014-021	27.8	47.6	54.0		65.6	78.5	grey	1	med	med
21	Ajigo	SF017-011	27.2	47.5	55.1		65.7	78.9	grey	1	med	med
22	AVC	112AM1	24.8	46.6	52.9		70.1	79.6	none	1	low	stiff
23	GlacialTech	Igloo 2310	23.5	44.9	53.7		66.7	80.8	silver	1	med	very stiff
24	Sibak	AE01625B	23.5	40.8	54.4		57.1	81.0	none	1	loud	easy
25	Coolermaster	HHC-L61	21.5	47.2	48.3		71.2	82.3	none	1	quiet	easy
26	Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
27	JMC Products	400023	23.1	44.5	65.2		55.3	85.2	Chomerics T725	1	low	easy
28	Sibak	AT01515B	23.0	45.1	64.6		60.1	95.2	none	2	med	stiff
				50W	50W		100W	100W

Initial performance figures show us that the Cho-Liang may actually be better than we had first thought. The temperature results on the small interface die at 100W are especially good. On the larger die the heatsink evidentially doesn't have the features needed to provide very good cooling and shows elevated results.

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	Swifech	MCXC370	16.9	22.0		32.1	44.3
5	Vantec	CCK-6027D	18.0	22.2		37.5	46.0
6	Coolermaster	HHC-001	18.3	23.1		34.3	46.4
7	Tocools	Crown	15.6	30.0		24.7	47.0
8	Dynatron	DY1206BH-625	16.8	31.9		24.4	47.2
9	Cho-Liang	CB0307U17	17.4	22.8		34.5	47.3
10	Cho Liang	CB0315U17	18.4	27.5		35.7	49.0
11	Ajigo	MF014-021	19.8	26.2		37.8	50.7
12	Cybercooler	P5750	20.1	25.9		40.2	51.6
13	Ajigo	SF017-011	20.3	27.9		38.5	51.7
14	NengTyi	XPC5000	22.6	25.2		45.2	52.2
15	Titan	TTC-CU5TB	22.0	27.0		37.6	52.2
16	Coolermaster	HSC-V62	26.0	31.4		40.3	53.1
17	Swiftech	MCX370	19.7	23.8		38.0	53.3
18	Zalman	CNPS6000-Cu	21.6	29.0		40.8	53.4
19	Spire	5F263	22.1	29.2		41.7	53.6
20	Taisol	CGK760092	19.3	37.8		27.9	54.1
21	AVC	112AM1	21.8	28.1		45.3	54.8
22	Spire	5T235	20.7	28.0		40.5	55.8
23	GlacialTech	Igloo 2310	21.4	43.2		30.2	57.3
24	Sibak	AE01625B	17.3	30.9		33.6	57.5
25	Thermaltake	Volcano 6cu+	13.8	28.8		32.1	57.9
26	Coolermaster	HHC-L61	25.7	26.8		49.7	60.8
27	JMC Products	400023	21.3	42.0		32.1	62.0
28	Sibak	AT01515B	22.1	41.6		37.1	72.2
			50W	50W		100W	100W

These are the numbers we have all been waiting to see, and the all-copper Cho Liang CB0315U17 heatsink manages to produce some pretty good results. In fact, the Cho Liang heatsink is able to keep up with some rather more expensive heatsinks and come in under the 50 degree mark - something we always like to see.

The performance heatsink barrier starts at about the 40 degree mark so this heatsink isn't quite there with this particular fan, but it really isn't that far off either. Most of the heatsinks which manage performance level cooling use much louder, and much faster RPM fans. Even though the CB0315U17 comes in a few degrees behind (pretty much the same if you factor in % error) the all aluminum CB0307U17 there is room to grow. The performance we saw here is with a relatively slow 3500RPM fan. If a 38mm Delta fan were attached to the heatsink in its place you can be sure the results would change for the better.

With its very thin copper fins, and all copper construction the Cho-Liang teeters on the edge of near-performance cooling, and offers in its standard package some good cooling for the cost, and moderate noise levels.