Test Methodology
I first install the cooler into a hemi-anechoic chamber, and with the help of a highly sophisticated sound analyzer, I take all necessary noise measurements required for the testing. Afterward, I install the system inside a giant climate chamber, where the ambient temperature remains steady at 25 degrees Celsius; this way, I don’t have to take the delta difference into account since I can evaluate all coolers under the same ambient temperature. I used to believe that taking the delta difference between the measured temperature of the CPU and the ambient temperature provided accurate results. Still, after testing with the climate chamber, I soon realized this was not the case.
- Manufacturer: Giant Force
- Model Number: GTH-800-20-CP-AR
- Temp Range: -20℃ ~ +100℃
- Humidity Range: 20% ~ 98% RH
- Temp/humidity Constancy: ±0.2℃; ±2.5%RH
- Temp/humidity Uniformity at center: ±0.5℃; ±4%RH
- Indication Resolution:
- Internal Dimensions (WHD): 100 x 100 x 80 cm
- External Dimensions (WHD): 145 x 190 x 135 cm
- Net Weight (approx): 450 kgs
- 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 System: 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
Besides the Giant Force climate chamber, I also use the following equipment.
- Noise Test Environment: Hemi-Anechoic Chamber with 6 dB(A) noise floor
- Conditions: 25 (+-2) degrees Celsius, 40-50% humidity
- Sound Analyzer: Bruel & Kjaer 2270-S G4
- Microphone: Bruel & Kjaer Type 4955-A
- Mic Calibrator: Bruel & Kjaer Type 4231
- Data Logger: Picoscope TC-08
To evaluate the coolers, I use a superpower-hungry Intel i9-13900K. This beast reaches 360W of sustained load, which I measure accurately using a Powenetics v2 system. Below are all the parts of the CPU cooling station test system. The thermal paste I use is Arctic Cooling MX-4. I run at least two test sessions and take the average results. In all tests, the applied conditions are the following:
- Ambient Temperature: 25°C ±0.5°C
- Humidity: 30% ±4%RH
Intel Test System Specs |
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| Mainboard | Asus Prime Z690-A | |||
| CPU | Intel 13900K Package Power Limit (PL1, PL2) set to 250W | |||
| GPU | NVIDIA 1070 Ti | |||
| NVMe | XPG GAMMIX S50 Lite 1TB | |||
| RAM | XPG Lancer DDR5 (2 x 16GB) 6000MHz | |||
| Power Supply | Seasonic Vertex 1200W (Cybenetics Platinum) |
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| CPU Cooler | What is under test! | |||
| Case | DimasTech Bench | |||
I also use an AMD system to evaluate the cooler’s performance. This processor’s maximum real TDP is 195W.
AMD Test System Specs |
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| 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) |
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| CPU Cooler | What is under test! | |||
| Case | Cooler Master Test Bench | |||
The load application is no other but the notorious Prime95 (small FFTs), which applies a tremendous load to the processor. I run each test for 20 minutes, allowing for a 10-minute cool period between each test. The whole procedure is fully automated thanks to a particular application that I made for this purpose. In AIOs, the pump runs full speed during the entire testing duration.
The critical point in my methodology for coolers is that I consider the CPU’s average frequency during testing because it doesn’t remain steady throughout the tests. It constantly changes according to the load and the operating temperatures. Moreover, I have the Powenetics system to continually measure the CPU’s power consumption, which is way more accurate and faster than using a software solution like HWinfo.
Noctua is just one of the apples of the PC world, brand recognition but only make overpriced barely passable gear, some of their fans here in AU are like $70 each, for fkn fans, they are an uppity brand that doesn’t deserve the adoration they get.
Why are you comparing a fan CPU cooler to AIO liquid coolers. Not really a fair comparison and not really useful to the consumers. Comparing the Noctura DH-12L to a Be quiet Dark Rock cooler is a better comparison.
First, I compare it with all the rest high-end coolers. Second, its price point is in the AIO territory.
Third, it is a CPU Cooler after all 😊…
However, if it’s not too bothersome… you can put different colors for AIO and Air to satisfy some readers.
By the way, …do you have in your schedule to review ThermalRight PS 120/120EVO?
I believe, it can level or beat Arctic LF (maybe even with its promo-price) in Performance Per Price ratio.