Best for premium dual-tower cooling
Noctua NH-D15 G2
- Supports AMD AM5 according to Noctua.
- Includes two NF-A14x25r G2 fans and measures 168 mm tall with fans.
Drawback: Its height and width can restrict case or memory clearance.
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Best picks
Best Air Cooler for the Ryzen 7 7800X3D: Models to Compare
The Noctua NH-D15 G2 is a premium dual-tower choice; the Thermalright Peerless Assassin 120 SE is a shorter alternative. Check your case and memory clearance before ordering.
Quick answer
Choose the Noctua NH-D15 G2 if you want a dual-tower cooler with AM5 mounting. The Thermalright Peerless Assassin 120 SE is a lower-profile dual tower; the be quiet! Dark Rock Pro 5 prioritizes selectable quiet and performance modes. Confirm case height and RAM clearance for every option.
- Noctua NH-D15 G2: Best for premium dual-tower cooling
- Thermalright Peerless Assassin 120 SE: Best for a shorter dual tower
- be quiet! Dark Rock Pro 5: Best for selectable fan modes
- Noctua NH-U12A: Best for a single-tower layout
- DeepCool AK620: Best for a dual-tower alternative
Best for a shorter dual tower
Thermalright Peerless Assassin 120 SE
- Thermalright lists AM5 compatibility.
- Manufacturer dimensions list a height of 155 mm and six heat pipes.
Drawback: Check tall memory modules against the cooler and fan position.
Best for selectable fan modes
be quiet! Dark Rock Pro 5
- be quiet! lists AM5 support and two fans.
- Its specifications include a 168 mm overall height and seven heat pipes.
Drawback: The tall, broad heatsink needs generous clearance.
Best for a single-tower layout
Noctua NH-U12A
- Noctua's NH-U12A is a 120 mm single-tower cooler.
- Manufacturer lists support for AMD AM5.
Drawback: A single tower may not match the thermal headroom of larger dual towers under every workload.
Best for a dual-tower alternative
DeepCool AK620
- DeepCool lists AM5 compatibility.
- The AK620 uses a dual-tower heatsink and two 120 mm fans.
Drawback: Verify current socket mounting hardware and case clearance with the seller and manufacturer.
Compare them side by side
| Noctua NH-D15 G2 | Thermalright Peerless Assassin 120 SE | be quiet! Dark Rock Pro 5 | Noctua NH-U12A | DeepCool AK620 | |
|---|---|---|---|---|---|
| Socket | AM5 | AM5 | AM5 | AM5 | AM5 |
| Cooler height | 168 mm | 155 mm | 168 mm | — | — |
| Heatsink layout | Dual tower | Dual tower | Dual tower | Single tower | Dual tower |
| Fan count | 2 | — | 2 | — | 2 |
| Model | Noctua NH-D15 G2 | Thermalright Peerless Assassin 120 SE | be quiet! Dark Rock Pro 5 | Noctua NH-U12A | DeepCool AK620 |
Common questions
Questions before you buy
Does the Ryzen 7 7800X3D include a stock cooler?
AMD lists no thermal solution included with the boxed processor and recommends liquid cooling for optimal performance. Choose a compatible third-party cooler.
Is a 155 mm cooler enough for the 7800X3D?
Height alone does not determine cooling performance. Consider the cooler design, case airflow and workload, and confirm the case supports its full dimensions.
Will these air coolers fit an AM5 motherboard?
Each selected model is listed by its manufacturer as compatible with AM5. Confirm the exact mounting hardware supplied with the product you buy.
How much case clearance does the NH-D15 G2 need?
Noctua lists the NH-D15 G2 at 168 mm high with its fans installed. Compare that figure with your case's CPU-cooler clearance and check RAM fit.
Sources and how we chose
- AMD Ryzen 7 7800X3D specifications · 2026-10-22
- Noctua NH-D15 G2 specifications · 2026-10-22
- Thermalright Peerless Assassin 120 SE · 2026-10-22
- be quiet! Dark Rock Pro 5 · 2026-10-22
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