The AMD Ryzen 9 9900X3D and 9950X3D are absolute powerhouses, packing 3D V-Cache technology and top-tier multi-core performance. But with great power comes great heat! If you want to keep your CPU running at peak efficiency—whether you’re gaming, editing, or pushing heavy workloads—you need a top-tier cooler.
We’ve rounded up the best AIO and air coolers to keep these chips chilled. Whether you’re after high-performance liquid cooling or a silent yet powerful air cooler, we’ve got you covered. Let’s dive in.
Best CPU Coolers for Ryzen 9 9900X3D & 9950X3D: Quick Comparison
| Cooler | Type | Radiator Size / Fan Setup | Key Feature | Price (Amazon) |
| ARCTIC Liquid Freezer III 420 A-RGB | AIO | 420mm | Extreme cooling for overclocking | $160 – Buy Now |
| Lian Li Galahad II Trinity 360MM | AIO | 360mm | High-performance fans with daisy-chaining | $190 – Buy Now |
| ASUS TUF Gaming LC II 360 ARGB | AIO | 360mm | Reinforced tubing for longevity | $150 – Buy Now |
| CORSAIR Nautilus 240 RS ARGB | AIO | 240mm | Quiet operation with easy installation | $100 – Buy Now |
| Noctua NH-D15 | Air Cooler | Dual Tower (140mm fans) | Industry-leading air cooling | $120 – Buy Now |
| Thermalright FC140 Black | Air Cooler | Dual Tower (140mm + 120mm) | Budget-friendly high-performance air cooling | $57 – Buy Now |
1. ARCTIC Liquid Freezer III 420 A-RGB
Quick Highlights
- Massive 420mm radiator for extreme cooling
- High-efficiency PWM-controlled pump
- Three powerful fans (200–1900 RPM)
- Wide compatibility with Intel & AMD sockets
- ARGB lighting for aesthetics
- Price – $160 – Buy Now
The ARCTIC Liquid Freezer III 420 A-RGB is a monster of a cooler, designed for enthusiasts who demand the best possible thermals. With its huge 420mm radiator and triple high-performance fans, it’s one of the best AIOs for overclocking the Ryzen 9 9900X3D and 9950X3D.
One of its standout features is its PWM-controlled pump, which ensures efficient cooling without unnecessary noise. Plus, ARCTIC has fine-tuned the fans for optimal airflow and static pressure, meaning your CPU stays cool even under sustained heavy loads. If you want the best liquid cooling solution for these high-end Ryzen chips, this is it.
Pros
- Unbeatable cooling performance for overclocking
- Quiet and efficient pump operation
- ARGB lighting for added flair
Cons
- Requires a large case for installation
- Overkill for non-overclocked CPUs
2. Lian Li Galahad II Trinity 360mm
Quick Highlights
- 360mm radiator with high-performance fans
- Daisy-chainable UNI Fan SL-INF design
- Quiet operation with excellent airflow
- ARGB lighting with multiple effects
- AM5 and LGA1700 socket support
- Price – $190 – Buy Now
Lian Li’s Galahad II Trinity 360MM is an excellent balance between cooling performance and aesthetics. It comes equipped with three high-performance fans that are daisy-chainable, meaning less cable mess and easy installation. The ARGB lighting is stunning, making it a great choice for anyone with a windowed case.
Performance-wise, this cooler is more than capable of handling the Ryzen 9 9900X3D and 9950X3D at full load. Its optimized pump design ensures efficient heat dissipation, keeping temperatures in check even during intense gaming or rendering sessions.
Pros
- Excellent cooling for high-end Ryzen CPUs
- Sleek design with easy cable management
- Whisper-quiet operation
Cons
- A bit expensive compared to competitors
- Not as extreme as 420mm AIOs
3. ASUS TUF Gaming LC II 360 ARGB
Quick Highlights
- 360mm radiator with three 120mm ARGB fans
- Reinforced tubing for extra durability
- TUF Gaming design for long-lasting performance
- Aura Sync compatibility for seamless RGB control
- Backed by a 6-year warranty
- Price – $150 – Buy Now
ASUS brings TUF durability and premium cooling performance with the TUF Gaming LC II 360 ARGB. Its three 120mm radiator fans offer great static pressure, ensuring efficient heat dissipation for Ryzen 9 9900X3D and 9950X3D even under heavy loads.
What makes this cooler stand out is its reinforced tubing, designed to prevent leaks and increase durability. ASUS also backs it with a 6-year warranty, making it a solid long-term investment. Plus, if you already have an ASUS Aura Sync setup, this cooler integrates seamlessly.
Pros
- Strong cooling performance with reliable durability
- Great for ASUS motherboard users
- Long 6-year warranty
Cons
- Tubing can be stiff during installation
- Not the quietest AIO on the list
4. CORSAIR Nautilus 240 RS ARGB
Quick Highlights
- 240mm AIO liquid cooler designed for quiet yet effective cooling
- Two RS120 ARGB fans with a direct motherboard connection for easy control
- Daisy-chain design for a cleaner build and hassle-free installation
- Low-noise pump for minimal distractions during use
- Compatible with Intel LGA 1851/1700 and AMD AM5/AM4 sockets
- Price – $100 – Buy Now
If you’re looking for a compact yet capable AIO cooler for the Ryzen 9 9900X3D or 9950X3D, the CORSAIR Nautilus 240 RS ARGB is a great balance of performance, aesthetics, and convenience. While it doesn’t have the sheer cooling capacity of a 360mm or 420mm AIO, it’s more than capable of keeping these CPUs at reasonable temperatures, especially if you’re running stock settings or mild overclocking.
What makes the Nautilus 240 RS stand out is its quiet operation and ease of installation. The daisy-chainable fans and direct motherboard connection mean you don’t have to wrestle with extra controllers or a rat’s nest of cables. It’s also one of the more affordable AIO coolers with premium features, making it an excellent pick for mid-range builds that need reliable cooling without excessive noise.
Of course, being a 240mm AIO, it may struggle under extreme workloads compared to larger 360mm+ coolers. If you’re planning on pushing the 9900X3D or 9950X3D to their limits, you might want to look at a bigger radiator. But for those who want a compact, quiet, and stylish liquid cooler, the Nautilus 240 RS delivers excellent value.
Pros
- Compact size makes it great for smaller cases
- Whisper-quiet pump with efficient cooling
- Easy-to-use daisy-chain design reduces cable clutter
Cons
- Not ideal for aggressive overclocking
- Cooling capacity is lower than 360mm+ AIOs
5. Noctua NH-D15
Quick Highlights
- Dual-tower air cooler with two 140mm fans
- Industry-leading air cooling performance
- All-black stealthy design for a sleek aesthetic
- Near-silent operation even under load
- Compatible with AMD AM5/AM4 and Intel LGA 1700/1200/115X sockets
- Price – $120 – Buy Now
The Noctua NH-D15 chromax.Black is the undisputed king of air cooling, offering performance that rivals some 240mm AIOs. If you’re not a fan of liquid cooling but still need top-tier thermals, this massive dual-tower heatsink is one of the best choices for keeping your Ryzen 9 9900X3D or 9950X3D cool.
Noctua is known for engineering excellence, and the NH-D15 exemplifies that with its huge aluminum heatsink and two 140mm NF-A15 PWM fans. These fans provide fantastic airflow while remaining incredibly quiet, making it an ideal option for silent builds. Unlike liquid coolers, there’s zero risk of leaks, and maintenance is practically non-existent—just dust it off every now and then, and you’re good to go.
One thing to keep in mind is its massive size. The NH-D15 is one of the largest air coolers on the market, meaning you’ll need a spacious case and RAM modules with a low profile to avoid clearance issues. However, if you have the room for it, this cooler is a fantastic alternative to AIOs—and one of the best options for users who want silent, reliable, and high-performance air cooling.
Pros
- Exceptional cooling, comparable to mid-range AIOs
- Whisper-quiet operation, even under full load
- No risk of leaks or pump failures
Cons
- Huge size may interfere with RAM clearance
- No RGB lighting for aesthetics-focused builds
6. Thermalright FC140 Black
Quick Highlights
- Dual-tower air cooler with a 140mm and a 120mm fan
- 5 advanced heat pipes with AGHP technology for efficient heat transfer
- Premium black aluminum heatsink for a sleek aesthetic
- Solid cooling performance at a lower price than competitors
- Supports AM5, AM4, and Intel LGA 1700/115X/1200/2011
- Price – $57 – Buy Now
The Thermalright FC140 Black is a fantastic budget-friendly alternative to high-end air coolers like the Noctua NH-D15. It comes equipped with two powerful fans (140mm + 120mm) and a massive heatsink that allows it to handle Ryzen 9 9900X3D and 9950X3D with ease. Despite its lower price point, it still offers impressive thermal performance, making it a great option for users who need a high-performance air cooler without breaking the bank.
One of its standout features is its AGHP (Advanced Heat Pipe Technology), which ensures efficient heat dissipation and balanced cooling across the entire heatsink. The fans are PWM-controlled, allowing for fine-tuned speed adjustments based on workload, and they remain relatively quiet even under load.
While the FC140 Black doesn’t quite match the sheer cooling power of the NH-D15, it comes close at a much lower price. It’s an excellent choice for users looking for top-tier air cooling on a budget while still keeping their Ryzen 9 CPUs cool under heavy workloads.
Pros
- Great cooling performance for its price
- Quiet operation with effective heat dissipation
- Sleek all-black design looks great in any build
Cons
- Still quite large, may have RAM clearance issues
- Not as refined or premium as the Noctua NH-D15
Final Thoughts – Which Cooler Should You Get?
The best CPU cooler for your Ryzen 9 9900X3D or 9950X3D depends on your needs, case size, and performance expectations. If you’re looking for the absolute best liquid cooling performance, the ARCTIC Liquid Freezer III 420 is the top choice. Lian Li’s Galahad II 360MM and ASUS TUF LC II 360 are fantastic options if you want great performance with a 360mm radiator.
For air cooling enthusiasts, the Noctua NH-D15 chromax.Black remains the king of air coolers, but if you’re on a budget, the Thermalright FC140 Black is an amazing alternative. And if you want a compact, quiet AIO, the CORSAIR Nautilus 240 RS ARGB is perfect for mid-sized builds.
No matter which one you choose, keeping your Ryzen 9 CPU cool will ensure better performance, stability, and longevity—so pick the cooler that fits your setup best and enjoy your powerhouse CPU without thermal worries!
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