Quick verdict
For 105W Ryzen 9 AM4 builds, the DeepCool AK620 delivers exceptional value. For 170W Ryzen 9 AM5 builds, the Arctic Liquid Freezer III 360 is the top recommendation. The Noctua NH-D15 is the best option for builders who prefer air cooling on either platform at 105W.
Top 5 Picks
| Cooler | Type | Height | TDP Rating | Standout Feature | |---|---|---|---|---| | [Noctua NH-D15](https://www.amazon.com/s?k=Noctua+NH-D15&tag=thetestedhub-20) | Dual tower | 165mm | 250W+ | Best air cooler for Ryzen 9 | | [DeepCool AK620](https://www.amazon.com/s?k=DeepCool+AK620&tag=thetestedhub-20) | Dual tower | 160mm | 260W | Best value dual-tower | | [Arctic Liquid Freezer III 360](https://www.amazon.com/s?k=Arctic+Liquid+Freezer+III+360&tag=thetestedhub-20) | 360mm AIO | N/A | 400W+ | Best thermal performance overall | | [Corsair iCUE H150i Elite Capellix](https://www.amazon.com/s?k=Corsair+iCUE+H150i+Elite+Capellix&tag=thetestedhub-20) | 360mm AIO | N/A | 350W+ | Premium RGB 360mm AIO | | [NZXT Kraken 360](https://www.amazon.com/s?k=NZXT+Kraken+360&tag=thetestedhub-20) | 360mm AIO | N/A | 300W+ | Solid 360mm with LCD option |
Check price on Amazon →The best CPU coolers for Ryzen 9 processors in 2026, built for 105W to 170W+ TDP chips with picks for sustained workloads, overclocking, and quiet operation.
How we test
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
At a glance
| Pick | Best for | Score | |
|---|---|---|---|
| Top 5 Picks | Check price |
The picks, reviewed
Top 5 Picks
| Cooler | Type | Height | TDP Rating | Standout Feature | |---|---|---|---|---| | [Noctua NH-D15](https://www.amazon.com/s?k=Noctua+NH-D15&tag=thetestedhub-20) | Dual tower | 165mm | 250W+ | Best air cooler for Ryzen 9 | | [DeepCool AK620](https://www.amazon.com/s?k=DeepCool+AK620&tag=thetestedhub-20) | Dual tower | 160mm | 260W | Best value dual-tower | | [Arctic Liquid Freezer III 360](https://www.amazon.com/s?k=Arctic+Liquid+Freezer+III+360&tag=thetestedhub-20) | 360mm AIO | N/A | 400W+ | Best thermal performance overall | | [Corsair iCUE H150i Elite Capellix](https://www.amazon.com/s?k=Corsair+iCUE+H150i+Elite+Capellix&tag=thetestedhub-20) | 360mm AIO | N/A | 350W+ | Premium RGB 360mm AIO | | [NZXT Kraken 360](https://www.amazon.com/s?k=NZXT+Kraken+360&tag=thetestedhub-20) | 360mm AIO | N/A | 300W+ | Solid 360mm with LCD option |
What to look for
What to consider
For Ryzen 9 AM5 chips at 170W, prioritize a 360mm AIO or the very best dual-tower air coolers. At 170W sustained, smaller AIOs and mid-grade air coolers will encounter thermal limits during extended rendering sessions. For Ryzen 9 AM4 chips at 105W, a quality dual-tower air cooler or 240mm AIO handles the load comfortably.
What to consider
Verify case radiator support before choosing an AIO. A 360mm radiator requires a dedicated 360mm mounting position, which not all mid-tower cases provide. Check your case specifications under cooling support.
Our verdict
For 105W Ryzen 9 AM4 builds, the DeepCool AK620 delivers exceptional value. For 170W Ryzen 9 AM5 builds, the Arctic Liquid Freezer III 360 is the top recommendation. The Noctua NH-D15 is the best option for builders who prefer air cooling on either platform at 105W.
FAQs
Ryzen 9 processors span a wide TDP range. Older AM4 chips like the 3900X and 3950X are rated at 105W. Newer AM5 models like the 9950X are rated at 170W. All Ryzen 9 chips support Precision Boost, which allows the processor to draw significantly more power during short burst workloads. A cooler rated at least 250W is recommended to handle these power spikes without thermal throttling.
Premium dual-tower air coolers like the Noctua NH-D15 can handle Ryzen 9 chips at stock speeds, but 170W processors like the 9950X push the limits of even the best air coolers during sustained all-core workloads. For 105W AM4 Ryzen 9 chips, a dual-tower or 240mm AIO works well. For 170W AM5 Ryzen 9 processors, a 360mm AIO is the safer choice to avoid thermal throttling under heavy rendering loads.
Ryzen 9 AM4 processors use the standard AM4 mounting pattern. Ryzen 9 AM5 processors use the AM5 socket, which shares the same 52mm hole spacing as AM4, meaning most modern coolers support both with included hardware. Verify your cooler lists your specific socket in its compatibility table. If buying an older cooler for a new AM5 build, check whether the manufacturer offers a free or purchasable AM5 mounting kit.
Tom Reeves has reviewed consumer electronics for over a decade, with a focus on televisions, monitors, laptops, and smart home devices. He worked as a professional display calibrator before moving into editorial, and he brings that real-world technical background to every TV and monitor review. At TheTestedHub, Tom covers display calibration, computer monitors, laptops and 2-in-1s, smart home platforms, home theater setups, and HDR performance.
