Buying Guide
The Best CPU Coolers for the Ryzen 7 9700X
Six air coolers for the Ryzen 7 9700X, compared on heat pipes, fans, RAM clearance and AM5 support.
By The PC Journal editorial team
12 min read6 products evaluated
The Ryzen 7 9700X runs at 65W by default, and AMD lets you raise its power limit in the BIOS. Size the cooler for the setting you plan to use.
We compared six air coolers on heat pipes, fans, RAM clearance and AM5 support, using the makers' specifications.
Quick Picks
Our 6 recommendations at a glance. Tap a pick for the full verdict.
Best for the Ryzen 7 9700X
Thermalright Phantom Spirit 120 SE
Seven heat pipes at a budget price.
Best for: Headroom for power boost.
Our take Check price for Thermalright Phantom Spirit 120 SE (opens in a new tab)
Best Quiet Single Tower
Noctua NH-U12A
Two NF-A12x25 fans.
Best for: Quiet builds.
Our take Check price for Noctua NH-U12A (opens in a new tab)
Best Budget Pick
ARCTIC Freezer 36
Push-pull fans at a very low price.
Best for: Default settings.
Our take Check price for ARCTIC Freezer 36 (opens in a new tab)
Best RAM Clearance
be quiet! Dark Rock 5
An asymmetrical tower.
Best for: Tall memory.
Our take Check price for be quiet! Dark Rock 5 (opens in a new tab)
Worth Considering
Thermalright Phantom Spirit 120 Digital EVO
The Phantom Spirit 120 Digital EVO adds a magnetic display panel that shows CPU temperature to the Phantom Spirit's seven-pipe design.
Best for: Buyers who want 7 heat pipes.
Our take Check price for Thermalright Phantom Spirit 120 Digital EVO (opens in a new tab)
Well-Rounded Choice
Thermalright Peerless Assassin 120 SE
The Peerless Assassin 120 SE is the budget dual tower most builders start with.
Best for: Buyers who want two fans included.
Our take Check price for Thermalright Peerless Assassin 120 SE (opens in a new tab)
Our Picks
Best for the Ryzen 7 9700X1 of 6
Thermalright Phantom Spirit 120 SE on Amazon (opens in a new tab)
The Phantom Spirit 120 SE puts seven heat pipes into a dual-tower design at a budget price.
Best for
- Headroom for power boost.
Skip if
- If budget leads, the Freezer 36 was cheaper at our last price check.
Why we like it
Its 154mm height fits most mid-tower cases. Thermalright rates it for CPUs from 105W to 280W, and mounting kits cover AM4, AM5 and Intel up to LGA1851. On heat pipe count it ties with the NH-U12A and the Phantom Spirit 120 Digital EVO at 7.
Nothing else here matches its 154mm height; the NH-U12A comes closest at 158mm. Check that your case offers at least 154mm of CPU cooler clearance before ordering. Its price falls between the Peerless Assassin 120 SE and the Phantom Spirit 120 Digital EVO, based on our last check. Buyers who need a confirmed warranty should compare it with the NH-U12A, which offers 6-year.
Key dimensions & specs
- Heat pipes: 7
- Fan size: 120mm
- Height: 154mm
- Fans included: 2
- Sockets named: AM5, AM4, LGA1851, LGA1700
Pros
- 7 heat pipes
- Two fans included
- Mounts on both AM5 and Intel LGA1851
- Dual-tower heatsink
Cons
- Costs more than the Freezer 36 at the time of writing
Best Quiet Single Tower2 of 6
Noctua NH-U12A on Amazon (opens in a new tab)
The NH-U12A packs seven heat pipes and two NF-A12x25 fans into a 120mm single tower that clears RAM and PCIe slots.
Best for
- Quiet builds.
Skip if
- If budget leads, the Freezer 36 was cheaper at our last price check.
Why we like it
It includes NT-H1 paste and a six-year warranty, and Low-Noise Adaptors keep the fans near silent at idle. It matches the Phantom Spirit 120 SE and the Phantom Spirit 120 Digital EVO on heat pipe count (7). Its 158mm height ranks second of 3 here, behind the Phantom Spirit 120 SE (154mm) and ahead of the Phantom Spirit 120 Digital EVO (160mm).
It also comes with full RAM and PCIe clearance. Check that your case offers at least 158mm of CPU cooler clearance before ordering. Only the Dark Rock 5 came close to it on price at the time of writing; it cost the most of the 6 picks.
Key dimensions & specs
- Heat pipes: 7
- Fan size: 120mm
- Height: 158mm
- Warranty: 6-year
- Fans included: 2
Pros
- 7 heat pipes
- 6-year warranty
- Two fans included
- Two NF-A12x25 fans on a single tower
Cons
- Costs more than the Freezer 36 at the time of writing
Best Budget Pick3 of 6
ARCTIC Freezer 36 on Amazon (opens in a new tab)
The Freezer 36 is a single tower with a push-pull fan pair at a very low price.
Best for
- Default settings.
Skip if
- Skip it if heat pipe count matters most to you; the Phantom Spirit 120 SE offers 7.
Why we like it
It includes a contact frame for Intel LGA1851 and LGA1700. Its four offset heat pipes run in a single tower with two fans in push-pull. The click-in fan mounts make fan swaps easy, and it takes most 120mm fans.
Its side-flow heatsink lets the rear fan pull air through the fins and out of the case, and ARCTIC backs it with a six-year warranty. Its pressure-optimised fans push air through four offset heat pipes, which suits high-end CPUs in a single tower. Its 4 heat pipe count is the lowest in this group; the Phantom Spirit 120 SE leads at 7. No other pick here cost less at our last price check, and the Peerless Assassin 120 SE was closest.
Key dimensions & specs
- Heat pipes: 4
- Fan size: 120mm
- Warranty: 6-year
- Fans included: 2
- Sockets named: AM5, AM4, LGA1851, LGA1700
Pros
- 6-year warranty
- Two fans included
- Mounts on both AM5 and Intel LGA1851
- Push-pull single tower
Cons
- Heat pipe count trails the Phantom Spirit 120 SE (7)
- No published height
Best RAM Clearance4 of 6
be quiet! Dark Rock 5 on Amazon (opens in a new tab)
The Dark Rock 5 is an asymmetrical single tower with six heat pipes that clears RAM and VRM heatsinks.
Best for
- Tall memory.
Skip if
- The maker gives no height, so look elsewhere if that figure decides it for you.
Why we like it
A pre-installed mounting bridge makes fitting it easier, and a magnetic mesh cover hides the heat pipe ends. Its Silent Wings 4 fan has a tight blade tip clearance for quiet airflow. On heat pipe count it ties with the Peerless Assassin 120 SE at 6.
It also offers a simplified mounting system. Its price falls between the Phantom Spirit 120 Digital EVO and the NH-U12A, based on our last check. Buyers who need a confirmed height should compare it with the Phantom Spirit 120 SE, which comes in at 154mm.
Key dimensions & specs
- Heat pipes: 6
- Fan size: 120mm
- Fans included: 1
Pros
- Asymmetrical heatsink that clears RAM and VRM heatsinks
- Silent Wings 4 fan
- Simplified mounting system
- Heat pipe count of 6, ahead of the Freezer 36
Cons
- No published height
- Costs more than the Freezer 36 at the time of writing
Worth Considering5 of 6
Thermalright Phantom Spirit 120 Digital EVO on Amazon (opens in a new tab)
The Phantom Spirit 120 Digital EVO adds a magnetic display panel that shows CPU temperature to the Phantom Spirit's seven-pipe design.
Best for
- Buyers who want 7 heat pipes.
Skip if
- Skip it if height matters most to you; the Phantom Spirit 120 SE offers 154mm.
Why we like it
At 160mm tall it fits mainstream ATX cases, and its fans spin to 2,150 RPM. It ships with mounting kits for AM4/AM5 and Intel sockets from LGA1150 to LGA1851. Thin ARGB lines frame the fans.
It matches the Phantom Spirit 120 SE and the NH-U12A on heat pipe count (7). Its 160mm height is the tallest in this group; the Phantom Spirit 120 SE leads at 154mm. It also comes with TRCC control software.
Check that your case offers at least 160mm of CPU cooler clearance before ordering. It was priced above the Phantom Spirit 120 SE and below the Dark Rock 5 at the time of writing.
Key dimensions & specs
- Heat pipes: 7
- Fan size: 120mm
- Height: 160mm
- Fans included: 2
- Sockets named: AM5, AM4, LGA1851, LGA1700
Pros
- 7 heat pipes
- Two fans included
- Mounts on both AM5 and Intel LGA1851
- Magnetic ARGB display panel that shows CPU temperature
Cons
- Height trails the Phantom Spirit 120 SE (154mm)
- Costs more than the Freezer 36 at the time of writing
Well-Rounded Choice6 of 6
Thermalright Peerless Assassin 120 SE on Amazon (opens in a new tab)
The Peerless Assassin 120 SE is the budget dual tower most builders start with.
Best for
- Buyers who want two fans included.
Skip if
- Its height is not published, which rules it out if you need that number.
Why we like it
It has six heat pipes and two 120mm fans. At 155mm tall it fits most mid-towers, and its six heat pipes and two PWM fans handle mainstream CPUs. It is one of the best-known budget dual towers.
On heat pipe count it ties with the Dark Rock 5 at 6. It also comes with a 25.6dB(A) noise rating. The maker names AM5 but not Intel LGA1851, so check the maker's site if you are building on Core Ultra.
On price it sat second of 6, between the cheaper Freezer 36 and the pricier Phantom Spirit 120 SE, at the time of writing. The trade-off is fan size; for more, the Phantom Spirit 120 SE comes in at 120mm.
Key dimensions & specs
- Heat pipes: 6
- Fan size: 120mm
- Fans included: 2
- Sockets named: AM5, AM4, Intel
Pros
- Two fans included
- Dual-tower heatsink
- 25.6dB(A) noise rating
- Heat pipe count of 6, ahead of the Freezer 36
Cons
- No published height
- Costs more than the Freezer 36 at the time of writing
How We Chose These Coolers for 9700X
Each pick was assessed across 4 criteria weighted for real-world use.
- Fit
- We compared listed heights and footprints, since case and RAM clearance decide what fits.
- Cooling hardware
- We noted heat pipes, fan size and fan count from each listing.
- Sockets
- We checked that each maker names current AM5 and Intel LGA1851 support.
- Support
- We recorded warranty length where the maker states it.
What to Look for in a Cooler for 9700X
Key buying criteria so you get the right fit the first time.
Size the cooler to the CPU
A 65W chip runs well on a single tower or a good low-profile cooler. Chips rated at 120W to 170W need a dual tower or an AIO to hold their boost clocks without loud fans.
Watch RAM clearance
Large towers and low-profile coolers can overhang the memory slots. Tall RAM heatsinks may force you to raise a fan or pick a slimmer cooler.
Makers publish RAM clearance figures; check them against your memory's height.
Warranty reflects fan life
Coolers have few failure points besides the fans. Longer warranties, such as Noctua's and Arctic's six years, cover the parts most likely to wear.
Bigger fans can spin slower
140mm fans move the same air as 120mm fans at lower speed, so larger coolers are often quieter at the same load.
Fan curves in the BIOS matter as much as the cooler.
Confirm the mounting kit
Check that the cooler lists your socket: AM5 and AM4 share mounting, while Intel LGA1851 and LGA1700 share hole spacing. Older coolers may need a free or paid adapter.
Check the cooler height against your case
Every case offers a maximum CPU cooler height. Tower coolers run from about 150mm to 170mm, and low-profile coolers from under 40mm to about 70mm.
Leave a few millimetres for the side panel.
How to Choose a Cooler for 9700X
By priority
| Priority | Consider | Why |
|---|---|---|
| Headroom for power boost | Phantom Spirit 120 SE | Seven heat pipes at a budget price |
| Quiet builds | NH-U12A | Two NF-A12x25 fans |
| Default settings | Freezer 36 | Push-pull fans at a very low price |
| Tall memory | Dark Rock 5 | An asymmetrical tower |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Cooler | Heat pipes | Fan size | Height | Warranty |
|---|---|---|---|---|
| Phantom Spirit 120 SE | 7 | 120mm | 154mm | Not listed |
| NH-U12A | 7 | 120mm | 158mm | 6-year |
| Freezer 36 | 4 | 120mm | Not listed | 6-year |
| Dark Rock 5 | 6 | 120mm | Not listed | Not listed |
| Phantom Spirit 120 Digital EVO | 7 | 120mm | 160mm | Not listed |
| Peerless Assassin 120 SE | 6 | 120mm | Not listed | Not listed |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Coolers |
|---|---|
| Under $50 | Freezer 36, Peerless Assassin 120 SE, Phantom Spirit 120 SE |
| About $50 to $100 | Phantom Spirit 120 Digital EVO, Dark Rock 5 |
| About $100 to $150 | NH-U12A |
Frequently Asked Questions
Do AM4 coolers fit AM5?
Yes, AM5 keeps AM4's mounting, so most AM4 coolers fit. Check the maker's compatibility list to be sure.
What cooler does a 65W CPU need?
A single-tower cooler handles it easily; a good low-profile cooler works in small cases.
Which way should the fans face?
Point the airflow from the front of the case towards the rear exhaust fan. Most tower coolers mount this way by default.
Do I need to buy thermal paste?
Most coolers include paste, and some ship it pre-applied. Buy a tube only if you plan to remount the cooler.
Is an air cooler as good as an AIO?
A large dual-tower cooler matches many 240mm AIOs and has no pump to fail. AIOs help with very hot CPUs and free up space around the socket.
Will a tower cooler block my RAM?
Some do. Check the maker's RAM clearance figure against your memory's height, especially with tall heatsinks or RGB modules.
Bottom Line
The Phantom Spirit 120 SE covers a 9700X at any setting. The NH-U12A is quietest, the Freezer 36 suits the default 65W, and the Dark Rock 5 clears tall RAM.