The CNPS6000-Cu comes with the Zalman Fanmate 1 which allows users to control how much noise the 92mm fan produces. With that in mind we have two MP3 recordings of the Zalman's 92mm fan in operation. The first recording is a standard 10 sec bit with the fan connected directly to the power supply.

The second recording is of the fan connected via the Fanmate 1, and also illustrates what happens when you turn the dial down so the fan makes less noise. You can see the effect visually in the second wave form image, or you can click on the pair of headphones and listen in to each recording separately.

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	Thermal Integration	TI-V77L	26.5	39.1	44.4		57.5	63.6	grey	1	med	med
2	Swiftech	MCXC370	21.4	38.3	43.4		53.5	65.7	none	1	med	med
3	OCZ	Gladiator	21.4	33.3	47.3		50.6	70.3	none	1	very loud	med
4	Vantec	CCK-6027D	27.4	45.4	49.6		64.9	73.4	none	1	med	med
5	Swiftech	MCX370	22.3	42.0	46.1		60.3	75.6	none	1	med	hard
6	Zalman	CNPS6000-Cu	24.8	46.4	53.8		65.6	78.2	none	1	very low	easy
7	AVC	112AM1	24.8	46.6	52.9		70.1	79.6	none	1	low	stiff
8	Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
9	Spire	5T060B1H3R	26.7	42.7	57.5		64.6	85.1	none	1	low	med
10	Thermalright	CB-6L	24.6	50.3	57.7		73.8	92.7	white pad	1	low	med
11	Fortis	A92	26.7	45.6	65.8		67.8	97.8	none	1	loud	stiff
				50W	50W		100W	100W

It is really difficult to place the CNPS6000-Cu in terms of other performance oriented heatsinks. Since it uses a completely different fan, and heatsink design there is no way to really say it isn't one of the best (quiet) performance heatsinks out there, or that it is simply a very good heatsink, but not a performance cooler.

Considering that with the Fanmate 1 active at the lowest setting the CNPS600-Cu will produce less than 20dBa of noise, and at full throttle, a mere 36.1dBa I would have to peg it as a very good cooler, and quiet performance heatsink. To be totally sure, let's have a look at the rise above ambient temperature results next.