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Noctua NH-L9x65 CPU Cooler Review

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Noctua NH-L9x65: Performance Test

Our CPU Cooler Performance Test takes use of the included TIM and fans included with each CPU cooler. The Noctua NH-L9x65 includes one 92 mm fan for a push setup and a small bag of Noctua NT-H1 TIM which can be reused. The purpose of this test is NOT to prove which cooler is better, but rather to give our readers an expectation of what to expect from each cooler using the stock fans and TIM.

Noctua-NH-L9x65-fan

Noctua NF-A9x14 92 mm PWM Fan Specifications

Courtesy of Noctua.at

Size 92x92x14 mm
Connector 4-pin PWM
Bearing SSO2
Blade Geometry A-Series with Flow Acceleration Channels
Frame Technology AAO (Advanced Acoustic Optimisation)
Rotational Speed (+/- 10%) 2200 RPM
Rotational Speed with L.N.A. (+/- 10%) 1700 RPM
Min. Rotational Speed (PWM, +/-20%) 500 RPM
Airflow 50,5 m³/h
Airflow with L.N.A. 38,1 m³/h
Acoustical Noise 19,9 dB(A)
Acoustical Noise with L.N.A. 13,5 dB(A)
Static Pressure 1,64 mm H2O
Static Pressure with L.N.A. 0,92 mm H2O
Max. Input Power 1,32 W
Max. Input Current 0,11 A
Voltage 12 V
MTBF > 150.000 h
Warranty 6 years

Test Results

Small-Cooler-Chart-Stock-Fans-&-Tim,-Stock-Voltage

The Noctua NF-A9x40 fans have a measured RPM rating from 500 to 2200, however our Asus Gryphon Z87 only allowed us to lower the fan speed down to 880 rpm. The tests reveal that at best, the Noctua NH-L9x65 is a minor upgrade in terms of performance when compared with the Intel stock cooler that came with our I5 4670k..The NH-L9x65 passes our performance test with flying colors, averaging 64.4 degrees Celsius under load from our Aida 64 run, which is fairly comparable to any load coming from a CPU intensive game.


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