DeepCool Infinity Series LT720 360mm – The Best Performance AIO

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 anymore since I can evaluate all coolers under precisely 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.

Climate Chamber Technical Specifications:
  • 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.

Testing 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

For evaluating the coolers, I use a super power-hungry Intel i9-13900K. This beast is reaching 360W of sustained load, which I measure accurately using a Powenetics v2 system. All parts of the CPU cooling station test system are shown below. The thermal paste I use is the Arctic Cooling MX-4. I run at least two test sessions and take the average results.

Test System Specs
Mainboard Asus Prime Z690-A
CPU Intel 13900K Package Power Limit (PL1, PL2) set to 250W
RAM XPG Lancer DDR5 (2 x 16GB) 6000MHz
Power Supply Seasonic Vertex 1200W
(Cybenetics Platinum)
CPU Cooler What is under test!
Case DimasTech Bench
Ambient Temperature 25°C ±0.5°C
Humidity 50% ±4%RH

The load application is no other but 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.

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.

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10 thoughts on “DeepCool Infinity Series LT720 360mm – The Best Performance AIO

  1. – Hope you’ll test “EK-Nucleus Lux CR360 D-RGB AIO” too (there’s also non-RGB (Dark version) and White version will be there soon as well…)
    – It’s the best AIO in 2023 (according to many reviewers, such as Kitguru, OC3D, Robeytech and others…)
    – Tech-Notice even showed it beats 420mm Arctic Liquid Freezer a bit when paired with 13900K… and some people commented that it’s just a couple degrees difference then with their Custom-loop cooling…
    – And the AIO is finally in stock again (it wasn’t in stock for a long time, I guess people are buying like crazy haha – I also bought it, hope it will arrive soon :))

  2. I just saw a review of “Phanteks Glacier One T30 Gen 2 D-RGB AIO (360mm)” and it’s 1 degree better then Nucleus Lux (on full load) – so you can test this one too 🙂

      1. oh, that’s very unfortunate but what about EK-Nucleus? Could you review that one instead (while they are still in stock)? haha 😀

  3. There’s also new “Asus ROG Ryujin III 360” cooler that’s even better then these 2 coolers… but the pump noise is frustrating according to “OC3D”, and the price is also insane 😅

  4. This AIO is the most suitable – especially in new generations of INTEL and AMD which are literally heaters.
    Very good and tested by me on 13600K and 5900X.
    I don’t like the desing of the PUMP that much, but that’s subjective.
    As far as the noise is concerned, it is not one of the most silent when I tested it with the Arctic Freezer II 360 with 6 120mm fans, but also with the 2 processors the difference was an average of -4C compared to the Arctic Freezer II 360 with MX6 thermal paste.
    The fans are very strong and DeepCool shows again in recent years that it wants to go 2 steps higher.
    The DeepCool cases need radical renewal and redesign.

    I should mention as far as the Fan Controller you mentioned (Corsair) is concerned, you can buy 10 seats from Arctic for €7 if you want to add another 3 for a push/pull arrangement and connect other fans.
    Also, DeepCool, for someone who wants to change thermal pads on the GPU, etc., provides very high-quality mm pads in many dimensions.

    Aris, goodevening! – We love you so much and we support you!
    Bless UP! my friend

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