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

There is a reason why this is the heatsink I actually use in my own computer. The initial performance of the Arkua 8568 is really good, and righ up there with other performance socket 478 heatsinks.

To see the final, actual standing of the Arkua 8568 we will have to go to the rise above ambient temperature test table.

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

Alright, so the Arkua 8568 has been edged out of the number three spot by the just released MCX4000, but the differences are pretty slight. The only other Pentium 4 performance heatsinks to outperform the Arkua 8568 thus far are the AVC sunflower and the Coolermaster IHC-H71 which is all copper and employs twin heatpipes. In terms of mass, only the AVC is comparable.

Both the Swiftech and Coolermaster heatsinks are pretty heavy as they use so much raw copper in their construction. All in all, the Arkua 8568 is a really good option for anyone looking to improve on the performance of the Stock Intel socket 478 heatsink. While the 8568 doesn't have the absolute best performance with this fan, a quick switch could yield a very potent combination.

Personally, I like the design of this type of heatsink, the excellent base machining and the relatively simple one-handed clipping mechanism. While the Swiftech definitely has one up on ultimate base finish, the Arkua offers excellent performance for the performance system equally as well.