Buying Guide
The Best CPU Coolers Under $30
Four air coolers ranked on heat pipe count and fan size, where the AXP90-X47 has the lowest height; the Assassin X120 Refined SE is the cheapest route in.
By Alex Morgan, PC Hardware Editor
11 min read4 products evaluated
Under $30, a cooler still beats most stock coolers on noise. Every pick cost $30 or less, ordered by heat pipe count.
The order reflects heat pipes, fan size and height from maker specifications; a missing sockets named is flagged, not filled in rather than guess, since we have not benched them.
Quick Picks
Which of the 4 picks to look at first. Tap a name for the full analysis.
Also Consider
ID-COOLING FROZN A620 PRO SEA 260W rating.
Best for: Buyers who want 260W rating.
Check price for ID-COOLING FROZN A620 PRO SE on Amazon (opens in a new tab)
Premium Pick
Thermalright AXP120-X67The top of this price range, adding a 15mm-thick 120mm fan.
Best for: Spending more than the Frozn A620 Pro SE costs for the fullest feature set in this group.
Check price for Thermalright AXP120-X67 on Amazon (opens in a new tab)
Lowest Price Here
Thermalright Assassin X120 Refined SEA lower price than the AXP90-X47 and the rest when we checked.
Best for: Keeping the cost under $50.
Check price for Thermalright Assassin X120 Refined SE on Amazon (opens in a new tab)
Lowest Height
Thermalright AXP90-X47The lowest height here (47mm).
Best for: Buyers who put height first.
Check price for Thermalright AXP90-X47 on Amazon (opens in a new tab)
| Pick | Why it stands out | Best for | Check price |
|---|---|---|---|
| A 260W rating. | Buyers who want 260W rating. | Check price for ID-COOLING FROZN A620 PRO SE on Amazon (opens in a new tab) |
| The top of this price range, adding a 15mm-thick 120mm fan. | Spending more than the Frozn A620 Pro SE costs for the fullest feature set in this group. | Check price for Thermalright AXP120-X67 on Amazon (opens in a new tab) |
| A lower price than the AXP90-X47 and the rest when we checked. | Keeping the cost under $50. | Check price for Thermalright Assassin X120 Refined SE on Amazon (opens in a new tab) |
| The lowest height here (47mm). | Buyers who put height first. | Check price for Thermalright AXP90-X47 on Amazon (opens in a new tab) |
Our Picks
Also Consider1 of 4
ID-COOLING FROZN A620 PRO SE
The Frozn A620 Pro SE is the cheapest dual tower here, with six heat pipes, a 157mm height and a 260W rating.
Best for
- Buyers who want 260W rating.
Skip if
- Skip it if height matters most to you; the AXP90-X47 offers 47mm.
Why we like it
Its dual-tower heatsink and two 120mm PWM fans stand 157mm tall, which fits most tower cases. The black finish suits a dark interior. Its RAM clearance of 40mm fits standard-height memory under the front fan.
It is rated at 27.2dB(A) maximum noise. Its two PWM fans slow down at idle. On heat pipe count it ties with the AXP120-X67 at 6.
On height it trails the group at 157mm, while the AXP90-X47 comes in at 47mm. Check that your case offers at least 157mm of CPU cooler clearance before ordering. Its price falls between the AXP90-X47 and the AXP120-X67, based on our last check.
Key specs
- Heat pipes
- 6
- Fan size
- 120mm
- Height
- 157mm
- Fans included
- 2
Pros
- Two fans included
- 260W rating
- 40mm clearance for standard RAM
- Heat pipe count of 6, ahead of the Assassin X120 Refined SE
Cons
- Height trails the AXP90-X47 (47mm)
- Costs more than the Assassin X120 Refined SE at the time of writing
Premium Pick2 of 4
Thermalright AXP120-X67
The AXP120-X67 fits six heat pipes and a 15mm-thick 120mm fan into 67mm.
Best for
- Spending more than the Frozn A620 Pro SE costs for the fullest feature set in this group.
Skip if
- If budget leads, the Assassin X120 Refined SE was cheaper at our last price check.
Why we like it
It is the value choice for small cases with a 65W or mid-range CPU. On heat pipe count it ties with the Frozn A620 Pro SE at 6. On fan size it ties with the Frozn A620 Pro SE and the Assassin X120 Refined SE at 120mm.
On height it sits mid-pack at 67mm: the AXP90-X47 comes in at 47mm, and the Frozn A620 Pro SE comes in at 157mm. It also offers a 26.1dB(A) noise rating. At 67mm tall it suits slim and small form factor cases, but a cooler this low sits close to the memory, so check your RAM height against the maker's clearance figure.
The maker names AM5 but not Intel LGA1851, so check the maker's site if you are building on Core Ultra. It was the most expensive pick when we checked, so weigh what it adds over the Frozn A620 Pro SE.
Key specs
- Heat pipes
- 6
- Fan size
- 120mm
- Height
- 67mm
- Fans included
- 1
- Sockets named
- AM5, AM4, Intel
Pros
- 15mm-thick 120mm fan
- 26.1dB(A) noise rating
- Heat pipe count of 6, ahead of the Assassin X120 Refined SE
- Fan size of 120mm, ahead of the AXP90-X47
Cons
- Costs more than the Assassin X120 Refined SE at the time of writing
Lowest Price Here3 of 4
Thermalright Assassin X120 Refined SE
The Assassin X120 Refined SE is a basic four-heat-pipe tower with one PWM fan and an aluminium cover.
Best for
- Keeping the cost under $50.
Skip if
- Skip it if this is a deal-breaker for you: heat pipe count of 4, behind the Frozn A620 Pro SE (6).
Why we like it
At 148mm tall it is a cheap step up from a stock cooler. Its TL-C12C fan is a 120mm PWM unit rated up to 1550rpm, 66.17CFM and 25.6dB(A) or less. The four 6mm heat pipes use Thermalright's AGHP technique, which the maker says handles vertical or horizontal mounting.
It weighs 0.645kg and mounts on AM4, AM5 and Intel sockets up to LGA1851. On heat pipe count it ties with the AXP90-X47 at 4. On fan size it ties with the Frozn A620 Pro SE and the AXP120-X67 at 120mm.
On height it sits mid-pack at 148mm: the AXP90-X47 comes in at 47mm, and the Frozn A620 Pro SE comes in at 157mm. Check that your case offers at least 148mm of CPU cooler clearance before ordering. It undercut the AXP90-X47 and every other pick on price at the time of writing.
Key specs
- Heat pipes
- 4
- Fan size
- 120mm
- Height
- 148mm
- Fans included
- 1
Pros
- TL-C12C PWM fan
- Aluminium heatsink cover
- Fan size of 120mm, ahead of the AXP90-X47
- Height of 148mm, ahead of the Frozn A620 Pro SE
Cons
- Heat pipe count of 4, behind the Frozn A620 Pro SE (6)
The catch
The main gap: heat pipe count of 4, behind the Frozn A620 Pro SE (6). If that matters, the Frozn A620 Pro SE offers 6.
Lowest Height4 of 4
Thermalright AXP90-X47
The AXP90-X47 is 47mm tall with four heat pipes and a 92mm fan.
Best for
- Buyers who put height first.
Skip if
- Pass on it if 92mm fan limits how much heat it can move quietly rules it out for your setup.
Why we like it
It is the slimmest option here with an AM5 listing. On heat pipe count it ties with the Assassin X120 Refined SE at 4. On fan size it trails the group at 92mm, while the Frozn A620 Pro SE comes in at 120mm.
Nothing else here matches its 47mm height; the AXP120-X67 comes closest at 67mm. It also comes with a 22.4dB(A) noise rating. At 47mm tall it suits slim and small form factor cases, but a cooler this low sits close to the memory, so check your RAM height against the maker's clearance figure.
The maker names AM5 but not Intel LGA1851, so check the maker's site if you are building on Core Ultra. Its price falls between the Assassin X120 Refined SE and the Frozn A620 Pro SE, based on our last check.
Key specs
- Heat pipes
- 4
- Fan size
- 92mm
- Height
- 47mm
- Fans included
- 1
- Sockets named
- AM5, AM4, Intel
Pros
- Very low 47mm height for slim cases
- 22.4dB(A) noise rating
- The lowest height here (47mm)
Cons
- 92mm fan limits how much heat it can move quietly
- Heat pipe count trails the Frozn A620 Pro SE (6)
- Fan size trails the Frozn A620 Pro SE (120mm)
The catch
If heat pipe count is your priority, the Frozn A620 Pro SE (6) is the stronger choice.
How We Chose These CPU Coolers Under $30
Alex Morgan compared the manufacturer specifications, connectivity, warranty terms and compatibility of every pick. Figures come from the makers unless a third-party source is named; we did not test these products ourselves.
- What we compared
- We set side by side four coolers on heat pipe count, fan size, height and fans included from manufacturer specifications. Nothing was tested in-house; 4 of the 5 fields compared are stated for every pick, while sockets named has gaps.
- What every pick has in common
- All 4, from the Frozn A620 Pro SE to the AXP90-X47, state heat pipe count, fan size and height.
- Where the specs have gaps
- The Frozn A620 Pro SE and the Assassin X120 Refined SE give no sockets named.
- Price range
- From the Assassin X120 Refined SE to the AXP120-X67, all sat in the under $50 tier when we checked.
What to Look for in a CPU Cooler Under $30
Key buying criteria so you get the right fit the first time.
Heat pipe count across these picks
Across these 4 picks heat pipe count spans 4 (the AXP90-X47) to 6 (the Frozn A620 Pro SE). Start with the Frozn A620 Pro SE if heat pipe count decides it.
How much fan size you need
The Frozn A620 Pro SE tops fan size at 120mm and the AXP90-X47 sits lowest at 92mm; 3 picks share the top figure. If fan size is your first filter, the Frozn A620 Pro SE sets the ceiling at 120mm.
A tower air cooler with brown fans installed in a PC Height
The AXP90-X47 tops height at 47mm and the Frozn A620 Pro SE sits lowest at 157mm. The AXP90-X47 is the pick for height.
Extras that separate them
The AXP120-X67: a 26.1dB(A) noise rating. The Assassin X120 Refined SE: an aluminium heatsink cover. The AXP90-X47: a 22.4dB(A) noise rating.
A tower air cooler in a case with red-lit fans Budget
All 4 sat in the under $50 tier when we checked, from the Assassin X120 Refined SE at the low end to the AXP120-X67 at the top, so decide on features first.
How to Choose a CPU Cooler Under $30
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who want 260W rating | Frozn A620 Pro SE | A 260W rating |
| Spending more than the Frozn A620 Pro SE costs for the fullest feature set in this group | AXP120-X67 | The top of this price range, adding a 15mm-thick 120mm fan |
| Keeping the cost under $50 | Assassin X120 Refined SE | A lower price than the AXP90-X47 and the rest when we checked |
| Buyers who put height first | AXP90-X47 | The lowest height here (47mm) |
Scroll sideways to see every column.
Key specs side by side
The Frozn A620 Pro SE leads on heat pipe count at 6, ahead of the AXP120-X67 at 6.
| Cooler | Heat pipes | Fan size | Height | Fans included |
|---|---|---|---|---|
| Frozn A620 Pro SE | 6 | 120mm | 157mm | 2 |
| AXP120-X67 | 6 | 120mm | 67mm | 1 |
| Assassin X120 Refined SE | 4 | 120mm | 148mm | 1 |
| AXP90-X47 | 4 | 92mm | 47mm | 1 |
Scroll sideways to see every column.
Frequently Asked Questions
Is the AXP90-X47 ahead of the AXP120-X67 on height?
The AXP90-X47 comes out best at 47mm, with the AXP120-X67 at 67mm. The spread runs down to the Frozn A620 Pro SE at 157mm.
What does the AXP120-X67 add over the Assassin X120 Refined SE?
The spec sheets show heat pipe count (6 against 4) and height (67mm against 148mm) in its favour. Both sat in the under $50 tier when we checked, so the gains in heat pipe count and height cost little extra by tier.
Why is the AXP90-X47 our Lowest Height pick?
It carries the badge for the lowest height here (47mm). On height it leads the AXP120-X67, 47mm against 67mm, a 30% margin. The price of that: the Assassin X120 Refined SE, the cheapest pick, still beats it on fan size (120mm against 92mm). It makes sense for anyone who puts height first.
What extras do the Frozn A620 Pro SE and the AXP120-X67 include?
The Frozn A620 Pro SE: a 260W rating. The AXP120-X67: a 15mm-thick 120mm fan. The Assassin X120 Refined SE: a TL-C12C PWM fan.
Should I pick the Frozn A620 Pro SE or the AXP90-X47?
The Frozn A620 Pro SE suits buyers who want 260W rating; the AXP90-X47 suits buyers who put height first.
Bottom Line
Our first pick is the Frozn A620 Pro SE, chosen for a 260W rating. Look at the AXP120-X67 for the top of this price range, adding a 15mm-thick 120mm fan, the Assassin X120 Refined SE for a lower price than the AXP90-X47 and the rest when we checked and the AXP90-X47 for the lowest height here (47mm) if those matter more to you.
Check the socket list; some budget coolers need a separate LGA1851 kit.
Related Guides
- Related guideThe Best Air Coolers
- Related guideThe Best CPU Air Coolers
- Related guideThe Best Low-Profile CPU Coolers
- Lower budgetThe Best Case Fans Under $25
- Higher budgetThe Best Air Coolers Under $40
- ExplainerPC Airflow Explained
- ExplainerHow Many Case Fans Do You Need?
- Check compatibility: processorsWhat Is a CPU Bottleneck and How Can You Identify One?
- Similar guideThe Best CPU Coolers Under $50
- Topic hubAll cpu coolers and cooling guides
About the author
PC Hardware Editor
Alex covers PC hardware, monitors, components, upgrades and peripherals for The PC Journal, with a focus on helping readers understand specifications, compatibility and meaningful product trade-offs.
Covers: Monitors, Graphics cards, Processors, PC components, Peripherals, Upgrades and compatibility
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