Noctua NH-U12S Air CPU Cooler Review

Test System and Methodology

Please note that our testing system was completely revised in September 2017. That means all previous results have been scrapped, and a new set of benchmarks introduced. For a look at our previous reviews, please consult our most recent review that used that system. Please note that we re-tested the Noctua NH-D15S as our base benchmark for cooling results.

Test system:

• Gigabyte Aorus Gaming 9 Z270
• Intel Core i7-7700K Delidded w/ NT-H1 under IHS
• Radeon R7 Passive GPU with 2GB VRAM
• 8GB Crucial DDR4 2400 MHz
• 512GB OCZ SSD
• be quiet! Dark Power Pro 800W
• Lian Li T80 Test Bench
• All testing conducted using NT-H1 thermal paste

We’d like to say a big thank you to Gigabyte, Noctua, Crucial, Intel, OCZ, be quiet!, and Lian Li for providing us with the above testing equipment and their on-going support.

Testing Methodology

• We always use Noctua Noctua NT-H1 thermal paste to make sure testing reveals the efficiency of the tested coolers not the efficiency of the bundled thermal paste
• Prime 95 is run for 10 minutes to calculate “load” results
• Unigine Superposition is run for 10 minutes to calculate “gaming” results
• The average temperature across all cores is taken
• Fans are left to operate at default PWM profile speeds unless otherwise stated
• For water cooling tests, all pumps have been operated at 12 volts unless otherwise stated
• Ambient temperatures should be between 21-23 degrees in all our tests unless otherwise stated
• Acoustic measurements are taken 10cm horizontally and 10cm vertically away from the CPU cooler with the VGA fan disabled
• Stock tests are performed using “out of the box” settings for the CPU
• Overclocking tests are performed with the CPU set to 5 GHz and 1.345v
• All coolers were tested under identical settings unless otherwise stated.
• There is approximately a 1-degree Celsius margin of error in our temperature recording software CPUID HW Monitor
• There is approximately a 1.5dBA margin of error with our Benetech GM1351 decibel meter
• In all these graphs we may have a few “reference” results of particular products that do not fit within that category for comparative purposes.

Software Used

• CPUID HWMonitor
• Prime 95
• Unigine Superposition (1080 Extreme)