Page 3 - Test Results
Out test configuration is as follows:
CPU: AMD Ryzen 5 5600X
Motherboard: MSI MAG B550 Tomahawk
RAM: XPG Spectrix D50 DDR4-3600 2x8GB
Graphics: EVGA NVIDIA GeForce RTX 3060 TI
Chassis: Corsair 5000D
Power: SilverStone Decathlon DA850 Gold 850W
Storage: Samsung EVO 970 1TB, Lexar NQ100 480GB
Operating System: Microsoft Windows 10 Pro
Compared hardware:
- DeepCool LT720
- ARCTIC Freezer A35 A-RGB
- ARCTIC Liquid Freezer II 280 A-RGB
- Cooler Master MasterLiquid PL240 Flux
- DeepCool AK400
- DeepCool LS720
- GAMDIAS CHIONE M3-240W
- SilverStone Hydrogon D120 ARGB
All tests were run in our custom-built computer to best reflect real-life performance. The computer remained in the same place and room for all tests. The ambient temperature of the room was roughly 21 degrees Celsius. The thermal paste applied to each cooler was stock respective to their manufacturers to rate its performance. Sufficient time between testing was applied for the paste to settle. The fans on all coolers, if applicable, were connected to the same motherboard's 4-pin connector. The test computer was turned on and idling for at least one hour for the idling tests. High CPU load results were obtained using the Prime95 in place large FFTs test with a maximum number of worker threads for a minimum of 15 minutes and recorded when the temperature was deemed stable.
For the first test, I let my computer sit idle for a while. After about an hour, I shook my mouse to wake my computer up. We can see the DeepCool LT720 sat at around 27 degrees Celsius. This outdid all the other liquid coolers by a considerable margin. It goes without saying but the LT720 also outdid all air coolers by a fair bit. This difference in idle thermals is likely due to the tubes being placed in the 6 o'clock position in this case, which could be related to the water block's skived microchannels. The LS720, despite having the same pump, could not be installed in this manner on AMD CPUs, as discussed on the previous page. While this is a great start, idle tests do not give a full representation of the cooling capabilities, thus leading us into our load tests.
Starting Prime95 and giving the processor ample time to load all the cores and threads, we can see how the cooler performs when the processor is under heavy stress. The DeepCool LT720 performed just as well here, peaking at 58 degrees Celsius. This tied with most of the GAMDIAS CHIONE M3-240W and the Cooler Master MasterLiquid PL240 Flux, while falling behind the ARCTIC Liquid Freezer II 280 A-RGB and DeepCool's own LS720. This also surpassed all compared air coolers, although this is not a surprise. It should be noted at this point all liquid coolers in these tests performed very similarly in the stress tests with the largest difference being only 2 degrees. We observed the boost frequency throughout the test, which was 3.7 GHz across all cores. The DeepCool LT720 performed excellently in our tests.
Sound is often perceived differently by people, but we try to make our subjective audio tests as objective as possible. On a scale of 0 to 10, where 0 is silence and 10 is an EDM festival, I would rate the DeepCool LT720 around 3.5/10 when idle and 5.0/10 when under full load. This is not surprising due to the extra 120mm fan that adds to the noise output compared to 240mm models. The radiator fans emit a moderate level of noise when under full load. Under day-to-day use, these fans are quieter, although still audible. These fans may not be the quietest, but are also not obnoxiously loud by any means. One reality users will have to face when purchasing an AIO cooler is there will be more moving parts in the system, which makes for more sources of noise. The pump emitted a low humming sound at full speed, which was relatively quiet. At normal speed though, the pump is basically inaudible.
Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Hardware, Installation
3. Test Results
4. Conclusion
