Buying Guide
The Best CPU Coolers for First Builds
From the Freezer 36 to the Phantom Spirit 120 Digital SNOW: four air coolers ranked on heat pipe count and fan size, with who should skip each one.
By The PC Journal editorial team
11 min read4 products evaluated
A first build goes smoother with an air cooler: no pump, no radiator placement and a simpler mount. Every pick names AM5 support and cost $70 or less.
This is a research roundup, not a lab test: heat pipes, fan size and fans included come from each maker's published specs; nothing here was tested in-house, and gaps in the specs are flagged, not filled in.
Quick Picks
Our 4 recommendations at a glance. Tap a pick for the full verdict.
Lowest Price Here
ARCTIC Freezer 36
Undercutting the Peerless Assassin 120 SE on price when we checked.
Best for: Keeping the budget tight.
Our take Check price for ARCTIC Freezer 36 (opens in a new tab)
Also Consider
Thermalright Peerless Assassin 120 SE
A dual-tower heatsink.
Best for: Buyers who want dual-tower heatsink.
Our take Check price for Thermalright Peerless Assassin 120 SE (opens in a new tab)
Strong Alternative
Thermalright Peerless Assassin 120 SE ARGB White
A white heatsink with white ARGB fans.
Best for: Buyers who want white heatsink with white ARGB fans.
Our take Check price for Thermalright Peerless Assassin 120 SE ARGB White (opens in a new tab)
Highest Heat Pipe Count
Thermalright Phantom Spirit 120 Digital SNOW
The highest heat pipe count here (7).
Best for: Buyers who put heat pipe count first.
Our take Check price for Thermalright Phantom Spirit 120 Digital SNOW (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| Undercutting the Peerless Assassin 120 SE on price when we checked. | Keeping the budget tight. | Check price for ARCTIC Freezer 36 (opens in a new tab) |
| A dual-tower heatsink. | Buyers who want dual-tower heatsink. | Check price for Thermalright Peerless Assassin 120 SE (opens in a new tab) |
| A white heatsink with white ARGB fans. | Buyers who want white heatsink with white ARGB fans. | Check price for Thermalright Peerless Assassin 120 SE ARGB White (opens in a new tab) |
| The highest heat pipe count here (7). | Buyers who put heat pipe count first. | Check price for Thermalright Phantom Spirit 120 Digital SNOW (opens in a new tab) |
Our Picks
Lowest Price Here1 of 4
ARCTIC Freezer 36 on Amazon (opens in a new tab)
The Freezer 36 is a single tower with fans in push-pull and a contact frame for Intel LGA1851 and LGA1700.
Best for
- Keeping the budget tight.
Skip if
- Skip it if heat pipe count matters most to you; the Phantom Spirit 120 Digital SNOW offers 7.
Why we like it
Its six-year warranty matches Noctua's. 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 Digital SNOW 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 Digital SNOW (7)
Also Consider2 of 4
Thermalright Peerless Assassin 120 SE on Amazon (opens in a new tab)
The Peerless Assassin 120 SE is the budget dual tower most builders reach for, with six heat pipes and two 120mm fans.
Best for
- Buyers who want dual-tower heatsink.
Skip if
- Price-first buyers should look at the Freezer 36, which cost less when we checked.
Why we like it
Thermalright does not list its height on Amazon, so check the spec page before buying for a narrow case. 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 Peerless Assassin 120 SE White 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 4, between the cheaper Freezer 36 and the pricier Peerless Assassin 120 SE White, at the time of writing.
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
- Costs more than the Freezer 36 at the time of writing
Strong Alternative3 of 4
Thermalright Peerless Assassin 120 SE ARGB White on Amazon (opens in a new tab)
The Peerless Assassin 120 SE White is built around a white heatsink with white ARGB fans, with a 25.6dB(A) noise rating on top.
Best for
- Buyers who want white heatsink with white ARGB fans.
Skip if
- Price-first buyers should look at the Freezer 36, which cost less when we checked.
Why we like it
On the spec sheet, it offers a 6 heat pipe count and offers a 120mm fan size. At 155mm tall it fits most mid-towers, and its two TL-C12C-S ARGB fans add lighting. The white heatsink and fans suit an all-white build.
Mounting hardware covers Intel LGA115x to LGA1700 and AMD AM4/AM5. The maker names AM5 but not Intel LGA1851, so check the maker's site if you are building on Core Ultra. Before buying, weigh one limit: costs more than the Freezer 36 at the time of writing. It was priced above the Peerless Assassin 120 SE and below the Phantom Spirit 120 Digital SNOW at the time of writing.
Key dimensions & specs
- Heat pipes: 6
- Fan size: 120mm
- Fans included: 2
- Sockets named: AM5, AM4, Intel
Pros
- Two fans included
- White heatsink with white ARGB fans
- 25.6dB(A) noise rating
- Heat pipe count of 6, ahead of the Freezer 36
Cons
- Costs more than the Freezer 36 at the time of writing
Highest Heat Pipe Count4 of 4
Thermalright Phantom Spirit 120 Digital SNOW on Amazon (opens in a new tab)
The Phantom Spirit 120 Digital SNOW is the all-white version of the Digital EVO, with a temperature display on top.
Best for
- Buyers who put heat pipe count first.
Skip if
- If budget leads, the Freezer 36 was cheaper at our last price check.
Why we like it
TRCC software shows CPU and GPU temperatures on the display, and the text colour can be changed. Nothing else here matches its 7 heat pipe count; the Peerless Assassin 120 SE comes closest at 6. You also get a magnetic ARGB display panel that shows CPU temperature.
Check that your case offers at least 160mm of CPU cooler clearance before ordering. Only the Peerless Assassin 120 SE White came close to it on price at the time of writing; it cost the most of the 4 picks. It gives ground on fan size, where the Freezer 36 comes in at 120mm.
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
- All-white finish
Cons
- Costs more than the Freezer 36 at the time of writing
How We Chose These CPU Coolers for First Builds
Each pick was assessed across 4 criteria weighted for real-world use.
- 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.
- Fit
- We compared listed heights and footprints, since case and RAM clearance decide what fits.
- Support
- We recorded warranty length where the maker states it.
What to Look for in a CPU Cooler for First Builds
Key buying criteria so you get the right fit the first time.
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.
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.
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.
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.
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.
How to Choose a CPU Cooler for First Builds
By priority
| Priority | Consider | Why |
|---|---|---|
| Keeping the budget tight | Freezer 36 | Undercutting the Peerless Assassin 120 SE on price when we checked |
| Buyers who want dual-tower heatsink | Peerless Assassin 120 SE | A dual-tower heatsink |
| Buyers who want white heatsink with white ARGB fans | Peerless Assassin 120 SE White | A white heatsink with white ARGB fans |
| Buyers who put heat pipe count first | Phantom Spirit 120 Digital SNOW | The highest heat pipe count here (7) |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Cooler | Heat pipes | Fan size | Fans included | Sockets named |
|---|---|---|---|---|
| Freezer 36 | 4 | 120mm | 2 | AM5, AM4, LGA1851, LGA1700 |
| Peerless Assassin 120 SE | 6 | 120mm | 2 | AM5, AM4, Intel |
| Peerless Assassin 120 SE White | 6 | 120mm | 2 | AM5, AM4, Intel |
| Phantom Spirit 120 Digital SNOW | 7 | 120mm | 2 | AM5, AM4, LGA1851, LGA1700 |
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, Peerless Assassin 120 SE White |
| About $50 to $100 | Phantom Spirit 120 Digital SNOW |
Frequently Asked Questions
Which pick leads on heat pipe count?
The Phantom Spirit 120 Digital SNOW leads at 7, ahead of the Peerless Assassin 120 SE at 6; the Freezer 36 sits at the other end with 4.
Which pick costs the least here?
At our last price check the Freezer 36 was the cheapest pick and the Phantom Spirit 120 Digital SNOW the most expensive; the Peerless Assassin 120 SE was the next step up from the Freezer 36.
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.
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.
Bottom Line
Our first pick is the Freezer 36, chosen for undercutting the Peerless Assassin 120 SE on price when we checked. Look at the Peerless Assassin 120 SE for a dual-tower heatsink, the Peerless Assassin 120 SE White for a white heatsink with white ARGB fans and the Phantom Spirit 120 Digital SNOW for the highest heat pipe count here (7) if those matter more to you.
Remove the plastic film from the cold plate before mounting; it's the most common first-build mistake.