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DeepCool Gammaxx AG400 vs Thermalright Peerless Assassin 120 SE: Comparison
DeepCool Gammaxx AG400 vs Thermalright Peerless Assassin 120 SE noise level compared
These two are close on paper, and noise level is the only measure that separates them at all: DeepCool Gammaxx AG400 31.6 dBA against Thermalright Peerless Assassin 120 SE 25.6 dBA. Fan count runs the same way, 1 on the DeepCool Gammaxx AG400 versus 2 on the Thermalright Peerless Assassin 120 SE, another win for Thermalright Peerless Assassin 120 SE. Add static pressure to that, 2.53 mmH2O on the DeepCool Gammaxx AG400 versus 1.53 mmH2O on the Thermalright Peerless Assassin 120 SE, and the pattern holds. Max speed runs the same way, 2000 RPM on the DeepCool Gammaxx AG400 versus 1550 RPM on the Thermalright Peerless Assassin 120 SE, another win for DeepCool Gammaxx AG400. Add airflow to that, 75.89 CFM on the DeepCool Gammaxx AG400 versus 66.17 CFM on the Thermalright Peerless Assassin 120 SE, and the pattern holds.
DeepCool Gammaxx AG400 vs Thermalright Peerless Assassin 120 SE: which one fits your build
The DeepCool Gammaxx AG400 is the one to take for budget RGB-themed first builds and locked mainstream Ryzen/Core CPUs, though it is not built for overclocked or high-TDP CPUs and enthusiasts chasing low noise at load. Take the Thermalright Peerless Assassin 120 SE for budget and mid-range builds up to about 200W sustained. Nothing else at $32 gets close. The same goes for first-time builders. The mounting hardware is genuinely simple and the bundled screwdriver reaches everything. Avoid it for mATX or SFF cases. 155mm of height rules out most of them.
Frequently asked questions
Do the DeepCool Gammaxx AG400 and Thermalright Peerless Assassin 120 SE differ on socket compatibility?
Yes. Socket Compatibility reads AMD AM5/AM4, Intel LGA1851/1700/1200/1151/1150/1155 on the DeepCool Gammaxx AG400 versus AMD AM5/AM4, Intel LGA1851/1700/1200/115X on the Thermalright Peerless Assassin 120 SE.
Is the Cooler Type the same on the DeepCool Gammaxx AG400 and Thermalright Peerless Assassin 120 SE?
It is. Both are listed at Air Tower, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- DeepCool Gammaxx AG400
- DeepCool
- Thermalright Peerless Assassin 120 SE
- Thermalright
Cooler Type
- DeepCool Gammaxx AG400
- Air Tower
- Thermalright Peerless Assassin 120 SE
- Air Tower
Series
- DeepCool Gammaxx AG400
- DeepCool Gammaxx AG400
- Thermalright Peerless Assassin 120 SE
- Peerless Assassin
Model Number
- DeepCool Gammaxx AG400
- R-AG400-BKANMC-G-1
- Thermalright Peerless Assassin 120 SE
- PA120 SE
Height
- DeepCool Gammaxx AG400
- 150 mmBest
- Thermalright Peerless Assassin 120 SE
- 155 mm-3%
Socket Compatibility
- DeepCool Gammaxx AG400
- AMD AM5/AM4, Intel LGA1851/1700/1200/1151/1150/1155
- Thermalright Peerless Assassin 120 SE
- AMD AM5/AM4, Intel LGA1851/1700/1200/115X
Tower Layout
- DeepCool Gammaxx AG400
- Single-Tower
- Thermalright Peerless Assassin 120 SE
- Dual-Tower
Fan Count
- DeepCool Gammaxx AG400
- 1-50%
- Thermalright Peerless Assassin 120 SE
- 2Best
Noise Level
- DeepCool Gammaxx AG400
- 31.6 dBA
- Thermalright Peerless Assassin 120 SE
- 25.6 dBABest
Heatpipe Count
- DeepCool Gammaxx AG400
- 4
- Thermalright Peerless Assassin 120 SE
- 6
Fan Size
- DeepCool Gammaxx AG400
- 120 mm
- Thermalright Peerless Assassin 120 SE
- 120 mm
Max Speed
- DeepCool Gammaxx AG400
- 2000 RPMBest
- Thermalright Peerless Assassin 120 SE
- 1550 RPM-22%
Airflow
- DeepCool Gammaxx AG400
- 75.89 CFMBest
- Thermalright Peerless Assassin 120 SE
- 66.17 CFM-13%
Static Pressure
- DeepCool Gammaxx AG400
- 2.53 mmH2O
- Thermalright Peerless Assassin 120 SE
- 1.53 mmH2O-40%
PWM Control
- DeepCool Gammaxx AG400
- Yes
- Thermalright Peerless Assassin 120 SE
- Yes
Lighting
- DeepCool Gammaxx AG400
- ARGB
- Thermalright Peerless Assassin 120 SE
- None
Fan Connection
- DeepCool Gammaxx AG400
- Standard 4-Pin PWM
- Thermalright Peerless Assassin 120 SE
- Standard 4-Pin PWM
Fans
- DeepCool Gammaxx AG400
- 1x 120mm Hydro Bearing PWM, 500-2000 RPM
- Thermalright Peerless Assassin 120 SE
- 2x 120mm TL-C12C PWM
Which one should you pick?
Choose DeepCool Gammaxx AG400 if you want the lower height (150 mm vs 155 mm), the higher max speed (2000 RPM vs 1550 RPM) and the higher airflow (75.89 CFM vs 66.17 CFM).
Choose Thermalright Peerless Assassin 120 SE if you want the higher fan count (2 vs 1) and the lower noise level (25.6 dBA vs 31.6 dBA).
Price comparison
| Retailer | DeepCool Gammaxx AG400 | Thermalright Peerless Assassin 120 SE |
|---|---|---|
| Amazon | View on Amazon | $32.31 View on Amazon |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
DeepCool Gammaxx AG400
7 / 10 Expert Rating
A fine entry-level RGB cooler for budget builds, not a thermal standout.
Thermalright Peerless Assassin 120 SE
9 / 10 Expert Rating
The best cooling-per-dollar in air cooling right now.