CYBENETICS LTD Syrou 6, Latsia, 2231, Nicosia Cyprus
Noctua NH-D15
Lab IDNCCLR00074
TypeAir
  • Testing Dates: Jul 3, 2024 to Jul 4, 2024
Scheme: THETA
AMD AM5THETA Gold · Air · AMD AM5
No THETA levelIntel LGA1851
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.

PlatformTHETA levelTest CPUMountRated atOverall Performance (OP)
AMD AM5THETA Gold · Air · AMD AM5AMD Ryzen 9 7900X (AM5)Default30 dB(A)10,042
Intel LGA1851No THETA levelIntel Core Ultra 9 285K (LGA1851)Default--

General Information

Test Equipment

Noise Test Environment Hemi Anechoic Chamber with 6dB(A) noise floor
Sound Analyzer Bruel & Kjaer 2270 G4
Microphone Bruel & Kjaer Type 4955-A
Temperature Logger Picoscope TC-08
Climate Chamber Giant Force GTH-800-20-CP-AR
Testing Methodology Cybenetics Cooling Solutions Test Protocol

DUT Information

BrandNoctua
ModelNH-D15
Lab IDNCCLR00074
Testing DatesJul 3, 2024 to Jul 4, 2024
EngineerAris Bitziopoulos

Climate Chamber

Noise Test EnvironmentHemi Anechoic Chamber with 6dB(A) noise floor
ManufacturerGiant Force
Model NumberGTH-800-20-CP-AR
Temperature Range-20℃ ~ +100℃
Humidity Range20% ~ 98% RH
Temperature/Humidity Constancy±0.2℃; ±2.5%RH
Temperature/Humidity Uniformity at center±0.5℃; ±4%RH
Internal Dimensions (WHD)100 x 100 x 80 cm
External Dimensions (WHD)145 x 190 x 135 cm
Net Weight (approximately)450 Kg
Heat-up Time (No load, no linear)(from 20°C to +100°C) 30min
Pull-down Time (No load, no linear)(from 20°C to -20°C) 50min
Cooling SystemAirtight compressor + evaporator fins + air-cooling condenser
Power Source3Φ AC 380V ±5%, 50Hz±1% 10KW
Based on StandardsISO 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)Noctua
ModelNH-D15
Number of Fans2
TypeAir
Heatpipes6
Heatpipe Diameter6mm
Length161mm
Width150mm
Height165mm
Block MaterialCopper
Weight1320g
AMD Processors SupportAM5, AM4
Intel Processors SupportLGA1851/1700/1200/1156/1155/1151/1150

Noise Output and Fan Speed

Table

Fan SettingNoise (dB(A))Fan 1 (RPM)Fan 2 (RPM)
40%7.2651657
50%13.6811812
60%18.9955957
70%23.810931094
80%25.912141216
90%29.713511346
100%32.314661463

Graphs

Noise Output vs Fan SettingdB(A) [lower is better]Noise Output vs Fan SettingdB(A) [lower is better]510152025303540%50%60%70%80%90%100%7.213.618.923.825.929.732.3
Fan Speed vs Fan SettingRPMFan Speed vs Fan SettingRPM600800100012001400160040%50%60%70%80%90%100%6518119551093121413511466Fan 16578129571094121613461463Fan 2

Fan Speed at Fixed Noise Levels

Noise LevelPWM (%)Fan 1 (RPM)Fan 2 (RPM)
15 dB(A)52847845
20 dB(A)62986983
25 dB(A)7611721173
30 dB(A)9113611363

AMD System Test Results

Table

ConditionCPU Temperature (°C)CPU Frequency (MHz)CPU Power (W)Overall Performance
20 dB(A)95.35136183.39876
25 dB(A)95.35149185.610027
30 dB(A)95.35146186.010042
Full fan speed95.35164188.510215

Graphs

CPU Temperature - AMD SystemDegrees Celsius [lower is better]CPU Temperature - AMD SystemDegrees Celsius [lower is better]85909510010520 dB(A)25 dB(A)30 dB(A)Full fan speed95.395.395.395.3
CPU Frequency - AMD SystemMHz [higher is better]CPU Frequency - AMD SystemMHz [higher is better]513551405145515051555160516520 dB(A)25 dB(A)30 dB(A)Full fan speed5135.95148.85145.85164.4
CPU Power - AMD SystemWattsCPU Power - AMD SystemWatts18318418518618718818920 dB(A)25 dB(A)30 dB(A)Full fan speed183.3185.6186188.5
Overall Performance - AMD SystemScore [higher is better]Overall Performance - AMD SystemScore [higher is better]980099001000010100102001030020 dB(A)25 dB(A)30 dB(A)Full fan speed9875.810027.110041.910214.8
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
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