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
JMC	401100	19.5	35.1		47.4	grey	1	med	easy
Zalman	CNPS7000-Cu	21.0	35.1		48.7	none	1	low	easy
Taisol	CCP445172	20.2	37.7		50.9	none	1	med	easy
AVC	117140	22.6	37.8		50.4	none	1	med	med
Coolermaster	IHC-H71	23.0	37.0		51.1	none	1	loud	stiff
Arkua	8568	22.4	37.8		51.7	none	1	med	med
JMC	400124	19.5	36.6		52.1	none	1	med-low	easy
Thermal Integration (high)	TI-V7035TN	20.2	38.3		52.9	none	1	very loud	easy
NengTyi	XPC5000	23.8	38.4		53.9	none	1	med	loud
Alpha	PAL8942	27.9	42.6		54.0	none	1	med	med
CPUMate	DIA-10500	22.8	39.3		55.5	none	1	med	easy
Zalman	CNPS6500-AlCu	23.1	40.3		57.4	none	1	low	easy
Glacialtech	Igloo 3300	22.4	40.5		58.8	silver	1	low	easy
Taisol	CEP426151A	24.3	43.7		59.7	none	1	med	easy
Intel	Socket 478	22.4	41.8		59.8	carbon	1	low	med
Arkua	838T-7G	23.3	42.0		60.0	none	1	med	easy
Dynatron	DC1207BMW	23.2	42.7		61.1	none	1	med	easy
Titan	TTC-MT3AB	22.8	41.5		61.2	none	2	loud	stiff
Dynatron	DC1206BM-S	22.4	43.2		62.0	none	1	med	med
AVC	117160	22.4	42.7		62.2	white pad	1	med	med
Eumax	DW-45	22.6	44.0		62.7	none	1	med	easy
Zalman	CNPS5700D-Cu	25.7	44.6		64.0	none	1	med	easy
Vantec	CCK-7025	27.0	45.4		64.1	none	1	med	med
JMC	400094	26.1	46.6		65.0	none	1	med	easy
Globalwin	VA476	28.7	49.5		68.0	grey	1	med	easy
Dynatron	DC1206BMV	23.1	45.1		68.2	none	1	low	easy
Vantec	GSN-7015	22.4	47.5		69.0	none	1	loud	stiff
Verax	P16	21.8	49.2		75.8	none	1	none	med
Arkua	848X-6B	27.2	54.5		80.4	none	1	low	med
			50W		100W

The initial thermal results paint a pretty good picture for this heatsink, but compared with some other JMC radial cut heatsinks we have tested in the past weeks, the 60mm fan is at a disadvantage. The other coolers, such as the JMC 401100 Phoenix 70 Pentium 4 heatsink did quite well indeed. We'll have to move forward to know where things really stand, so let's do that now.

Rise Above Ambient Temp. (c)
Mfg.	Model	27mm large copper block		27mm large copper block
		50W		100W
Alpha	PAL8942	14.7		26.1
Zalman	CNPS7000-Cu	14.1		27.7
AVC	117140	15.2		27.8
JMC	401100	15.6		27.9
Coolermaster	IHC-H71	14.0		28.1
Arkua	8568	15.4		29.3
NengTyi	XPC5000	14.6		30.1
Taisol	CCP445172	17.5		30.7
JMC	400124	17.1		32.6
CPUMate	DIA-10500	16.5		32.7
Thermal Integration (high)	TI-V7035TN	18.1		32.7
Zalman	CNPS6500-AlCu	17.2		34.3
Taisol	CEP426151A	19.4		35.4
Arkua	838T-7G	18.7		36.7
Glacialtech	Igloo 3300	18.1		37.1
Intel	Socket 478	19.4		37.4
Dynatron	DC1207BMW	19.5		37.9
Zalman	CNPS5700D-Cu	18.9		38.3
Vantec	CCK-7025	18.4		38.4
Titan	TTC-MT3AB	18.7		38.4
JMC	400094	20.5		38.9
Globalwin	VA476	20.8		39.3
Dynatron	DC1206BM-S	20.8		39.6
AVC	117160	20.3		39.8
Eumax	DW-45	21.4		40.1
Dynatron	DC1206BMV	22.0		45.1
Vantec	GSN-7105	25.1		46.6
Arkua	848X-6B	27.3		53.2
Verax	P16	27.4		54.0
		50W		100W

In the end we see some pretty good performance characteristics from the JMC 400124 Phoenix 60 radial cut heatsink. The unique design is not one we would have pegged as a heatsink that would have done so well, but sometimes it really is important to do the tests first, and take judgement second. The Dual-Pass Airflow architecture as JMC call it is an interesting technique, and one that I think it is safe to say has been copied poorly in years past.

Noise levels are low, but I wouldn't necessarily classify this heatsink as low noise - the fan rotates at 4500RPM which gives it a bit of whine - albeit one at a low intensity.

We've said this before and we'll say it again; since the fins are cut from a solid chunk of aluminum, all the edges are 90 degree angles which makes them prime targets for dust collection. I don't think it would be much of a stretch to suggest that the efficiency of this heatsink will be governed in the long term by how clean it is kept.

The bottom line is that the JMC Phoenix 60 is a pretty good Pentium 4 heatsink, but not a performance cooler. The 60m fan size being the main limiting factor, but with a 70mm fan version already here the choice will come down to price alone. Physically, the little silver muffin-shapped heatsink also looks really neat. :-)

Related Articles:

Here are a few other articles that you might enjoy as well...

1. Zalman CNPS7000-Cu P4 / Athlon64 Heatsink
2. Thermal Integration TI-T707TN Heatsink Review
3. JMC 401100 Phoenix 70 Radial Fin Heatsink
4. EUMAX DW-45 Copper P4 heatsink
5. Thermalright AX-7 Socket A heatsink