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DeepCool AK400 vs Noctua NH-U9S: Comparison
DeepCool AK400 and Noctua NH-U9S separate most on airflow: DeepCool AK400 at 66.47 CFM, Noctua NH-U9S at 46.44 CFM, 30% in favour of DeepCool AK400. Height splits them by another 24%, this time favouring Noctua NH-U9S. They match on 7 other specifications, including cooler type, tower type and tower layout.
Specs
| Specification |  |  |
|---|---|---|
| Brand | DeepCool | Noctua |
| Cooler Type | Air Tower | Air Tower |
| Series | DeepCool AK400 | Noctua NH-U9S |
| Tower Type | Single-Tower | Single-Tower |
| Model Number | R-AK400-BKNNMN-G-1 | NH-U9S |
| Height | 155 mm-24% | 125 mm |
| Socket Compatibility | AMD AM4/AM5, Intel LGA1851/1700/1200/115X | AMD AM5/AM4, Intel LGA1954/1851/1700/1200/115X |
| Tower Layout | Single-Tower | Single-Tower |
| Fan Count | 1 | 1 |
| Noise Level | 29 dBA+6.2 dBA | 22.8 dBA |
| RGB Lighting | No | No |
| Cooler Weight | 661 g | 618 g |
| Heatpipe Count | 4 | 5 |
| Fan Size | 120 mm | 92 mm |
| Max Speed | 1850 RPM-7% | 2000 RPM |
| Airflow | 66.47 CFM | 46.44 CFM-30% |
| Static Pressure | 2.04 mmH2O-11% | 2.28 mmH2O |
| PWM Control | Yes | Yes |
| Lighting | None | None |
| Fans | 1x FC120 FDB PWM, 120mm | 1x NF-A9 PWM, 92mm |
| Source URL | https://www.deepcool.com/products/Cooling/cpuaircoolers/AK400-Performance-CPU-Cooler-1851-1700-AM5/2024/15222.shtml | https://www.noctua.at/en/products/nh-u9s/specifications |
Verdict
DeepCool AK400
7.7 / 10 Expert Rating
A genuinely competitive budget single-tower cooler, now sold alongside its own updated G2 revision.
Noctua NH-U9S
8 / 10 Expert Rating
A sensible, well-built compact cooler for mATX builds that don't need flagship-level thermal headroom.