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

FrostyTech Synthetic Temperature Test Platform Results
	Mfg.	Model	Ambient Temp.	27mm large copper block		27mm large copper block	Thermal pad	No. Fans	Fan Noise	Clip force
				50W		100W
1	AVC	117140	22.6	37.8		50.4	none	1	med	med
2	Coolermaster	IHC-H71	23.0	37.0		51.1	none	1	loud	stiff
3	Arkua	8568	22.4	37.8		51.7	none	1	med	med
4	NengTyi	XPC5000	23.8	38.4		53.9	none	1	med	loud
5	Zalman	CNPS6500-AlCu	23.1	40.3		57.4	none	1	low	easy
6	Swiftech	MCX4000	28.5	43.2		57.8	none	1	med	complex
7	Vantec	GSN-7025	22.5	41.7		58.5	none	1	med	med
8	Chauh Choung	DTA-478	22.4	42.1		59.0	carbon	1	low	med
9	Taisol	CEP426151A	24.3	43.7		59.7	none	1	med	easy
10	Intel	Socket 478	22.4	41.8		59.8	carbon	1	low	med
11	Dynatron	DC1207BMW	23.2	42.7		61.1	none	1	med	easy
12	Titan	TTC-MT3AB	22.8	41.5		61.2	none	2	loud	stiff
13	Dynatron	DC1206BM-S	22.4	43.2		62.0	none	1	med	med
14	AVC	117160	22.4	42.7		62.2	white pad	1	med	med
15	Cho-Liang	CL-CB00881	23.6	41.2		65.0	none	1	med	easy
16	Cho-Liang	CL-CB0307Z17	24.2	45.6		65.7	none	1	med	easy
17	Cho-Liang	CL-CB0094-1A	23.2	39.5		67.9	none	1	med	easy
18	Dynatron	DC1206BMV	23.1	45.1		68.2	none	1	low	easy
19	ChoLiang	Cl-CB0309Z17	24.3	46.7		68.6	none	1	med	stiff
20	Vantec	GSN-7015	22.4	47.5		69.0	none	1	loud	stiff
				50W		100W

Performance seems to be better than the much flashier looking CB0309Z17 heatsink we reviewed recently so that is an interesting development. Still, there is a rather large grouping of Cho-Liang heatsinks in the area we would consider OEM, so that might be worth noting. Let's have a look at the rise above ambient temperatures to see just how this heatsink performs.

Rise Above Ambient Temp. (c)
	Mfg.	Model	27mm large copper block		27mm large copper block
			50W		100W
1	AVC	117140	15.2		27.8
2	Coolermaster	IHC-H71	14.0		28.1
3	Swiftech	MCX4000	14.7		29.3
4	Arkua	8568	15.4		29.3
5	NengTyi	XPC5000	14.6		30.1
6	Zalman	CNPS6500-AlCu	17.2		34.3
7	Taisol	CEP426151A	19.4		35.4
8	Vantec	GSN-7025	19.2		36.0
9	chauh Choung	DTA-478	19.7		36.6
10	Intel	Socket 478	19.4		37.4
11	Dynatron	DC1207BMW	19.5		37.9
12	Titan	TTC-MT3AB	18.7		38.4
13	Dynatron	DC1206BM-S	20.8		39.6
14	AVC	117160	20.3		39.8
15	Cho-Liang	CL-CB00881	18.2		41.4
16	Cho-Liang	Cl-CB0307Z17	21.4		41.5
17	Cho-Liang	CL-CB0309Z17	22.4		44.3
18	Cho-Liang	CL-CB0094-1A	16.3		44.7
19	Dynatron	DC1206BMV	22.0		45.1
20	Vantec	GSN-7105	25.1		46.6
			50W		100W

Even with a simple extruded design, the CB0307Z17 manages to outperform, by a few degrees the much more complex CB0309Z17 heatsink. The differences are pretty close, but it is an interesting one to note regardless. From what we are seeing of Cho-Liang's socket 478 heatsinks there isn't much to get a performance user excited.

The heatsinks are consistently coming in at the OEM level - good for mass produced systems because of cost considerations, but not an improvement over the standard Intel stock socket 478 heatsink. That is a hard title to eclipse, as even heatsink from Dynatron, AVC and Titan have come in under the reference line. In any case, the Cho-Liang CB0307Z17 offers moderate-to-average performance below that of the stock Intel heatsink.