The YS Tech fan spins at about 6800 RPM making a not so quiet alternative. The fan provides good cooling, and with the case doors close, and the computer under a table would be tolerable. I wouldn't recommend fans of this noise level for a 24/7 system in a room however. L isten to this heatsink by clicking on the headphones to the right of the waveform images. The Sample is about 10 seconds in length and is stored in MP3 format.

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	Dynatron	DY1206BH-638	22.5	37.3	46.3		51.5	67.4	none	1	high	med
3	OCZ	Dominator2	22.5	42.0	46.0		59.1	68.7	none	1	loud	med
4	Vantec	CCK-6027D	27.4	45.4	49.6		64.9	73.4	none	1	med	med
5	OCZ	Dominator	26.5	37.7	50.9		52.4	74.2	none	1	loud	med
6	Swiftech	MCX370-0A	22.3	42.0	46.1		60.3	75.6	none	1	med	hard
7	Akasa	Silver Mountain	26.6	46.2	51.5		65.0	76.1	none	1	loud	med
8	Vantec	CCK-6035D-Retail	26.5	44.2	52.8		63.2	77.9	none	1	loud	med
9	Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
10	Spire	5T060B1H3R	26.7	42.7	57.5		64.6	85.1	none	1	low	med
11	Thermalright	CB-6L	24.6	50.3	57.7		73.8	92.7	white pad	1	low	med
12	Fortis	A92	26.7	45.6	65.8		67.8	97.8	none	1	loud	stiff
				50W	50W		100W	100W

The initial results seem to indicate that the Dominator 2 is much better than its previous iteration, but given the differences in ambient temperatures this is a bit exaggerated.

Compared to the other reference coolers the Dominator 2 seems to be positioning itself as a performance cooler, but we'll have to look at the rise above ambient temperature results before confirming that completely.