Aristeidis Bitziopoulos, Certification Body General Manager
THETA Cooler Performance
THETA is a Cybenetics performance rating. It is not part of our ISO/IEC 17065 certification schemes and is outside our accreditation.
Overall Performance (OP) = W × F / T, where W is the average CPU power at the EPS connectors (W), F the average CPU frequency (MHz) and T the average CPU temperature (°C). A cooler is rated on its measured OP at 30 dB(A) normalized noise output; a cooler that cannot reach 30 dB(A) is rated on its own measured 25 dB(A) point. Air and AIO coolers have separate ladders on each test platform.
Evaluated before Revision 2.0 of the Cooling Solutions Test Protocol: the THETA level was assigned from the published results measured under Revision 1.8 (20 minutes per noise level, 10-minute cool-down). The cooler was not measured again, and the earlier procedure is not identical to the procedure of Revision 2.0.
Airtight compressor + evaporator fins + air-cooling condenser
Power Source
3Φ AC 380V ±5%, 50Hz±1% 10KW
Based on Standards
ISO 5801-2007, AMCA 210-0, ASHRAE 51-2007, IEC 61591-2005, GB/T 1236-200
AMD Test System
Mainboard
Asus TUF GAMING X670E-PLUS
CPU
AMD Ryzen 9 7900x
GPU
Embedded
NVMe
XPG GAMMIX S50 Lite 1TB
RAM
XPG Lancer DDR5 (2 x 16GB) 6000MHz
Power Supply
Seasonic Vertex 1200W
(Cybenetics Platinum)
CPU Cooler
Device Under Test
Case
Cooler Master Test Bench
Technical Specifications
Manufacturer (OEM)
be quiet!
Model
Dark Rock Pro 6
Number of Fans
2
Type
Air
Heatpipes
7
Heatpipe Diameter
6mm
Length
147mm
Width
140mm
Height
169mm
Block Material
Copper
Weight
1340g
AMD Processors Support
AM5, AM4
Intel Processors Support
LGA1851,1700,1200,115x
Warranty
3 years
Noise Output and Fan Speed
Table
Fan Setting
Noise (dB(A))
Fan 1 (RPM)
40%
7.0
817
50%
15.7
1027
60%
21.8
1222
70%
26.4
1408
80%
30.7
1587
90%
33.6
1749
100%
36.5
1916
Graphs
Fan Speed at Fixed Noise Levels
Noise Level
Fan 1 (RPM)
15 dB(A)
1000
20 dB(A)
1145
25 dB(A)
1325
30 dB(A)
1545
35 dB(A)
1810
AMD System Test Results
Table
Condition
CPU Temperature (°C)
CPU Frequency (MHz)
CPU Power (W)
Overall Performance
20 dB(A)
95.0
5125
179.4
9677
25 dB(A)
95.1
5133
180.8
9755
30 dB(A)
95.1
5135
180.7
9756
35 dB(A)
95.1
5147
182.5
9875
Full fan speed
95.1
5148
183.6
9936
Graphs
be quiet! Dark Rock Pro 6
All data and graphs included in this test report can be used by any individual on the following conditions: › It should be mentioned that the test results are provided by Cybenetics › The link to the original test results document should be provided in any case
