be quiet! Dark Rock 2 Tower Heatsink

Cooling
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Heatsink Comparison Table

CPU Coolers (ref. 140mm fan): °C Rise Comparison
Heatsink
Fan voltage / SPL @1m*
9V
7V
6V
18~21 dBA
13~16 dBA
11~13 dBA
Thermalright Archon SB-E
37
40
42
Prolimatech Armageddon
39
42
45
Thermalright Venomous X Silent Edition
40
43
44
NZXT Havik 140
40
43
47
Noctua NH-C14
(top mounted)
40
44
48
Noctua NH-C14
40
44
49
Thermalright Silver Arrow
39
45
49
be quiet! Dark Rock 2
49
51
53
*Note: there are minor differences in measured SPL due to the variety of fan orientations and mounting methods offered by the compared coolers.

When using our reference 140 mm fan, the Dark Rock 2 sinks like a rock, ending up at the bottom of our chart, trailing the leading Thermalright Archon SB-E by more than 10°C.

CPU Coolers (ref. 120mm fan): °C Rise Comparison
Heatsink
Fan voltage / SPL @1m*
12V
9V
7V
15~16 dBA
12~13 dBA
11~12 dBA
Thermalright Ultra-120 eXtreme Rev.C
38
40
43
Thermalright Venomous X
38
41
43
Prolimatech Megahalems
38
41
44
Noctua NH-U12P
39
42
44
Scythe Mugen-2
39
42
45
Cogage TRUE Spirit 1366
40
42
45
Prolimatech Armageddon
40
42
46
Zalman CNPS10X Quiet
40
43
46
Noctua NH-C14
39
42
48
Scythe Yasya
41
43
47
Thermalright Ultra-120 eXtreme
40
43
48
Cooler Master Hyper 212 Plus
41
44
48
Thermalright Archon SB-E
42
43
49
Thermalright Ultra-120
42
45
49
Titan Fenrir
43
46
50
Scythe Ninja 3
44
47
49
Noctua NH-C12P
43
47
51
Zalman CNPS10X Extreme
43
47
53
Swiftech Polaris 120
46
49
54
Zalman CNPS10X Flex
45
50
54
be quiet! Dark Rock 2
48
50
52
Cooler Master V8
46
50
54
Reeven Kelveros
47
51
55
Scythe Grand Kama Cross
45
52
57
Antec Kühler H20 620
(pump at 7V, almost inaudible)
52
52
53
Arctic Cooling Freezer Xtreme Rev.2
49
52
58
Scythe Kabuto
51
53
60
*Note: there are minor differences in measured SPL due to the variety of fan orientations and mounting methods offered by the compared coolers.

Unfortunately for be quiet!, our Nexus 120 mm fan results gives us more perspective. We've only encountered one traditional tower heatsink with worse performance, the Reeven Kelveros.

MP3 SOUND RECORDINGS

These recordings were made with a high resolution, lab quality, digital recording system inside SPCR's own 11 dBA ambient anechoic chamber, then converted to LAME 128kbps encoded MP3s. We've listened long and hard to ensure there is no audible degradation from the original WAV files to these MP3s. They represent a quick snapshot of what we heard during the review.

These recordings are intended to give you an idea of how the product sounds in actual use — one meter is a reasonable typical distance between a computer or computer component and your ear. The recording contains stretches of ambient noise that you can use to judge the relative loudness of the subject. Be aware that very quiet subjects may not be audible — if we couldn't hear it from one meter, chances are we couldn't record it either!

The recording starts with 5~10 second segments of room ambiance, then the fan at various levels. For the most realistic results, set the volume so that the starting ambient level is just barely audible, then don't change the volume setting again.



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