# Best CPU Air Cooler 2026: 10 Ranked, One Sold Twice at Two Prices Source: https://www.ranked10.co.uk/tech/best-cpu-air-coolers Published: 2026-09-19 | Updated: 2026-09-19 | Prices checked on Amazon UK on 2026-09-19 The same cooler appears twice in this best cpu air cooler shortlist, at two different prices. The Thermalright Peerless Assassin 120 SE is listed at £29.99 with 3,133 ratings and again at £35.90 with 307 ratings — £5.91 more for a name that is identical. The two listings cannot both be right about the hardware: one records 12 Volts and 265 watts, the other 5 Volts and 3 watts. Those watts are not power draw. The cooler's own fan is a 4-pin, 12-volt part moving 66.17 CFM, and the 265 W sitting in the Wattage field is the thermal capacity quoted in the bullet text, not the current the product consumes. The pattern repeats. be quiet! sells two Pure Rock Pro 3 coolers at the same £41.98, yet one lists 3.6 watts and the other 250 watts. Cooler Master's MasterLiquid describes a 394 mm radiator in its copy while its own dimensions field says 15.7 cm long. We ranked ten of the best cpu air cooler options on Amazon on three criteria: the published price and rating counts, the socket support each listing actually states, and whether a product's own specifications agree with each other. ## The ranking ### 1. Noctua NH-D15 Dual Tower CPU Cooler - Price: £99.95 | Amazon rating: 4.8 from 11,307 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/noctua-nh-d15 - Buy on Amazon: https://www.amazon.co.uk/dp/B00L7UZMAK?tag=ranked10-21 The best cpu air cooler here by feedback volume: 11,307 ratings at 4.8, with 90% of them five-star. This is the most expensive cooler in the list at £99.95 and the highest-rated: 4.8 from 11,307 ratings, with 90% of those five stars. No other model here gets close to that review count, which is why it sits at number one despite the price. It is a dual tower cpu cooler with six heatpipes and two 140 mm NF-A15 PWM fans. Noctua quotes 1,500 RPM, 24.6 dB and 140.2 cubic metres per hour of airflow, a far larger figure than the 66.17 CFM — roughly 112 m³/h — that the Thermalright models publish. The SecuFirm2 mounting covers LGA1851, LGA1700, LGA1200, LGA115x, AM5 and AM4, and the warranty runs to six years. However, the height figures in this listing do not agree with each other. The item highlight says 168 mm, while the dimensions field works out to 165 mm. Measure your case rather than trusting one number. In practice, a tower this size also rules out small cases and most tall RAM kits — if you are building compact or to a budget, this is not the best cpu air cooler for you. Pros: 11,307 ratings at 4.8, with 90% five-star; Two 140 mm PWM fans quoted at 1,500 RPM and 24.6 dB; 140.2 m³/h airflow, well above the 66.17 CFM of the Thermalright models; SecuFirm2 mounting covers Intel LGA1851/1700/1200/115x and AMD AM5/AM4; 6-year manufacturer's warranty Cons: £99.95, roughly five times the £20.49 ARCTIC Freezer 36; Height is 168 mm in the highlight and 165 mm in the dimensions field; Blocks tall RAM on many motherboards; The 1.56 watts in the wattage field says nothing about cooling capacity ### 2. Thermalright Peerless Assassin 120 SE Dual Tower Cooler - Price: £29.99 | Amazon rating: 4.7 from 3,133 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/thermalright-peerless-assassin-120-se - Buy on Amazon: https://www.amazon.co.uk/dp/B09LGY38L4?tag=ranked10-21 At £29.99 with 4.7 from 3,133 ratings this is the cheapest route to a 265 W-rated dual tower — and the identical name costs £35.90 further down this page. This is the cheaper of two listings carrying the same product name. At £29.99 it has 3,133 ratings at 4.7, and on review volume per pound it is the best cpu air cooler here. The other entry, five places down, asks £35.90 for 307 ratings. On hardware: two TL-C12C 120 mm PWM fans at 1,550 RPM ±10%, quoting 66.17 CFM and ≤25.6 dB(A), on a 125 × 135 × 155 mm body weighing 907 g. Six 6 mm heatpipes use Thermalright's AGHP treatment, and the listing rates the cooler at 120–265 W TDP. Worth noting, the compatibility bullet lists AMD AM4 only, while the title claims AM4 and AM5 — check the socket you actually own before ordering. The catch is the numbers that do not fit. The Wattage field says 265 watts, but the fan is a 4-pin, 12-volt part drawing nowhere near that; 265 W is the thermal capacity quoted in the bullet, not the product's consumption. At the same time, 155 mm of height plus fan overhang can foul tall RAM. If you need a guaranteed AM5 bracket and cannot confirm it before buying, choose a listing that names AM5 in its socket list. Pros: £29.99, the lower of two prices for this exact product name; 4.7 from 3,133 ratings, 85% of them five-star; Two 120 mm PWM fans at 1,550 RPM, quoted 66.17 CFM and ≤25.6 dB(A); Six 6 mm heatpipes rated 120–265 W TDP by the manufacturer; 907 g and 155 mm tall, so it fits more mid-towers than the Noctua NH-D15 Cons: Wattage field reads 265 watts for a 12-volt, 4-pin fan; Compatibility bullet says AM4 only; the title says AM4 and AM5; £5.91 more for the same name in the other listing; Fan overhang can clash with tall RAM ### 3. Thermalright Phantom Spirit 120 SE Black CPU Cooler - Price: £33.90 | Amazon rating: 4.6 from 151 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/thermalright-phantom-spirit-120-se - Buy on Amazon: https://www.amazon.co.uk/dp/B0D942JKJW?tag=ranked10-21 Seven heatpipes and a 4.6 score, but from only 151 ratings — the thinnest sample in the top three. £33.90 buys seven 6 mm heatpipes here, one more than the Peerless Assassin 120 SE, with AGHP 4.0 claimed. It is rated 4.6, but from just 151 ratings, with 7% of them at three stars or below. That is a much thinner sample than the 3,133 behind the cooler one place above it. Two TL-C12B V2 120 mm PWM fans run to 1,500 RPM ±10% on 4-pin, 12 volts, quoting 66.17 CFM and ≤25.6 dB(A). The body is 125 × 135 × 154 mm and weighs 1.51 kg, and the socket list is the widest in this round-up: Intel LGA1851/1700/1150/1151/1155/1156/1200 plus AMD AM4/AM5. In short, it is a genuine cpu cooler for am5 and LGA1851 without an adapter. That said, it is the heaviest cooler in the top three, and the S-FDB bearing with 20,000 hours of claimed service life is a manufacturer figure rather than a tested one. If you want the certainty of a large, established review pool rather than a promising spec sheet, this is not it. Pros: Seven 6 mm heatpipes with AGHP 4.0, one more than the £29.99 model; Socket list covers Intel LGA1851/1700/1150/1151/1155/1156/1200 and AMD AM4/AM5; Two 120 mm PWM fans, 1,500 RPM ±10%, 66.17 CFM, ≤25.6 dB(A); 154 mm tall, two millimetres lower than the £29.99 listing Cons: Only 151 ratings, with 7% at three stars or below; 1.51 kg, the heaviest cooler in the top three; £33.90, which is £3.91 more than the Peerless Assassin 120 SE at £29.99; The 20,000-hour bearing life is a manufacturer claim, not a tested figure ### 4. be quiet! Pure Rock Pro 3 Air Cooler - Price: £41.98 | Amazon rating: 4.7 from 322 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/be-quiet-pure-rock-pro3 - Buy on Amazon: https://www.amazon.co.uk/dp/B0DWZF7K1Y?tag=ranked10-21 A 4.7 score from 322 ratings, but 34.8 dB is the highest noise figure in this list and the wattage field says 3.6 watts. This sits mid-table on price at £41.98, with 4.7 from 322 ratings and 87% of them five-star. It is not the best cpu air cooler for a silent build, despite the brand name: 34.8 dB is the joint-highest noise figure in this round-up. Six nickel-plated copper heatpipes and a single Pure Wings 3 120 mm PWM fan running to 2,000 RPM, in a 139 × 124 × 155 mm body weighing 1.4 kg. be quiet! claims the funnel-shaped frame raises air pressure. Installation uses a standard mounting kit, and AMD AM5 owners get an offset mount that centres the base plate over the hot spots. Meanwhile, the wattage field reads 3.6 watts while the near-identical LX version of the same cooler, at the same £41.98, reads 250 watts. Neither number describes power draw. Even so, the real reservation is audio: at 34.8 dB this is the noisiest cooler here. If low noise matters more than lighting or brand, the single tower Noctua NH-U12S redux at 25.1 dB is the better fit. Pros: 4.7 from 322 ratings, 87% five-star; Six nickel-plated copper heatpipes with a 120 mm PWM fan up to 2,000 RPM; 155 mm tall and 1.4 kg, so it clears more cases than the Noctua NH-D15; AM5 offset mounting centres the base plate over the hot spots; Same £41.98 as the LX version, without the ARGB lighting Cons: 34.8 dB, the highest noise figure in this list; Wattage field says 3.6 watts; the LX version at the same price says 250 watts; The listing states Number of Packs: 2 alongside Number of Items: 1; 1-year manufacturer warranty, against 6 years on the ARCTIC and Noctua models ### 5. Noctua NH-U12S redux Single Tower CPU Cooler - Price: £49.95 | Amazon rating: 4.7 from 4,263 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/noctua-nh-u12s-redux - Buy on Amazon: https://www.amazon.co.uk/dp/B08WPDD6GD?tag=ranked10-21 The highest-rated single tower cpu cooler here: 4.7 from 4,263 ratings in a 158 mm, 710 g package. 4.7 from 4,263 ratings makes this the most-reviewed cooler after the NH-D15, at a lower £49.95. The dimensions are the reason to pick it: 158 mm tall, 125 mm wide, and the listing states it does not overhang the RAM slots — for a tight case, it is the best cpu air cooler here. One NF-P12 redux-1700 120 mm PWM fan at 25.1 dB, five heatpipes and a nickel-plated copper base. Noctua includes NT-H1 paste and the SecuFirm2 kit for LGA1851/1700/1200/115x and AM5/AM4, with 100% RAM compatibility claimed. For a quiet cpu air cooler in a mid-tower the numbers line up: it is almost 10 dB below the be quiet! Pure Rock Pro 3's 34.8 dB figure. By contrast, its wattage field reads 1.08 watts and the warranty is only 1 year, against 6 years on the NH-D15. The 120 mm fan also moves less air than the 140 mm pair on the bigger Noctua. If you run a heavily overclocked 250 W-class chip, this is not the cooler for that job; the dual tower models above exist for it. Pros: 4.7 from 4,263 ratings, 84% five-star; 158 mm tall with a slim 120 mm footprint and no claimed RAM overhang; 25.1 dB at up to 1,700 RPM, the quietest figure in the top five; SecuFirm2 fits Intel LGA1851/1700/1200/115x and AMD AM5/AM4; NT-H1 thermal paste included Cons: £49.95, which is £29.46 more than the ARCTIC Freezer 36; 1-year manufacturer warranty, not the 6 years of the NH-D15; Wattage field of 1.08 watts says nothing about cooling capacity; 120 mm fan, so less airflow than the 140 mm pair on the NH-D15 ### 6. ARCTIC Freezer 36 CPU Cooler - Price: £20.49 | Amazon rating: 4.5 from 1,023 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/arctic-freezer-36 - Buy on Amazon: https://www.amazon.co.uk/dp/B09VG6NBSJ?tag=ranked10-21 At £20.49 this is the best budget cpu air cooler in the list, and it carries the same 6-year warranty as the £99.95 Noctua. £20.49 is the lowest price here, and it comes with the longest warranty on a cheap cooler: 6 years, the same as the £99.95 Noctua NH-D15. It scores 4.5 from 1,023 ratings, with 79% five-star. A single tower with four offset heatpipes and push-pull 120 mm P fans spinning 200–1,800 RPM, quoting 56.3 CFM. The body is 104 × 126 × 159 mm and weighs 879 g. Crucially, the Intel contact frame for LGA1851 and LGA1700 is included; on AM5 and AM4 you need the four original AMD screws that came with your motherboard, and the listing says replacements can be requested from ARCTIC support. No noise level is published in the spec table, and 4.5 is the lowest score of the top six models. It also moves less air than the £29.99 Thermalright at 66.17 CFM. Either way, if you are building to a tight budget and own those AMD mounting screws, this is the value pick. Pros: £20.49, the cheapest cooler in this list; 6-year warranty, matching the £99.95 Noctua NH-D15; 4.5 from 1,023 ratings, 79% five-star; Push-pull 120 mm fans at 200–1,800 RPM and 56.3 CFM; Intel LGA1851 and LGA1700 contact frame included Cons: No noise level published in the spec table; AM5/AM4 installation needs the original AMD screws from your motherboard; 56.3 CFM is below the 66.17 CFM of the Thermalright models; 4.5 is the lowest rating of the top six ### 7. Thermalright Peerless Assassin 120 SE 1550RPM - Price: £35.90 | Amazon rating: 4.5 from 307 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/thermalright-peerless-assassin-120-se-5l5c - Buy on Amazon: https://www.amazon.co.uk/dp/B0CKP85L5C?tag=ranked10-21 The same name as number two, £5.91 dearer, with 307 ratings — and a dimensions field that measures 12 × 2.5 × 12 cm. This listing carries the same product name as the £29.99 model above, at £35.90, with 307 ratings at 4.5. The two cannot both be right, and the price gap is the smaller of the two problems. The bullets describe a 125 × 135 × 157 mm dual tower with two TL-C12C 120 mm PWM fans at 1,550 RPM and 66.17 CFM — which matches the £29.99 entry apart from 2 mm of height. Meanwhile the specification table gives dimensions of 12 × 2.5 × 12 cm, and 2.5 cm of width will not hold a dual tower cooler. It also lists 1.43 kg against 907 g on the other listing. As a cpu air cooler for gaming, the hardware described in the bullets is fine; the data around it is not. The voltage and wattage fields say 5 Volts and 3 watts, while the fans are 4-pin units the bullets describe as running at 12 volts. Crucially, there is no reason to pay £5.91 more for a name you can buy cheaper five places earlier in this list. Buy this one only if the £29.99 listing is out of stock. Pros: Same dual tower, six heatpipe, two-fan design as the £29.99 listing; 4.5 from 307 ratings; Socket list names Intel LGA1700/1851 and AMD AM4/AM5; 157 mm height, close to the 155 mm of the cheaper listing Cons: £5.91 more than the identical name at £29.99; Spec table dimensions of 12 × 2.5 × 12 cm contradict the 125 × 135 × 157 mm in the bullets; Voltage field says 5 Volts and wattage 3 watts, for 4-pin 12-volt fans; 1.43 kg listed against 907 g on the cheaper listing of the same cooler ### 8. be quiet! Pure Rock Pro 3 LX ARGB Air Cooler - Price: £41.98 | Amazon rating: 4.6 from 193 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/pure-rock-pro-3-lx - Buy on Amazon: https://www.amazon.co.uk/dp/B0DWZBNGQW?tag=ranked10-21 The same £41.98 as the non-LX Pure Rock Pro 3, but 16 ARGB LEDs and a 250-watt wattage field against 3.6 watts. Same price as the Pure Rock Pro 3 above at £41.98, with a 4.6 score from 193 ratings against 4.7 from 322. The difference you can see is lighting: 16 LEDs sit inside each Light Wings LX 120 mm fan hub and shine out through the frosted blades. The rest of the spec sheet is near-identical: six 6 mm copper heatpipes, nickel-plated base, 2,000 RPM, 34.8 dB, 139 × 124 × 155 mm, 1.36 kg, and the same AM5 offset mounting option. It supports Intel 1851/1700/1200/1151/1150/1155 and AMD AM5/AM4, and be quiet! says the front fan height can be adjusted for RAM clearance. However, the wattage field on this one says 250 watts where the non-LX version says 3.6 watts — at an identical price, with near-identical hardware. That is a listing error, not a difference you can buy. And 34.8 dB is as loud as its sibling. If you do not want ARGB, buy the version without it for the same money; if your case is already lit, the LEDs cost nothing extra. Pros: Same £41.98 as the non-LX version, with 16 ARGB LEDs per fan; 4.6 from 193 ratings, 83% five-star; Six 6 mm heatpipes, 2,000 RPM and 1.36 kg; Supports Intel LGA1851/1700/1200/1151/1150/1155 and AMD AM5/AM4; Adjustable front fan height for RAM clearance Cons: 34.8 dB, the same noise figure as the non-LX model at the same price; Wattage field says 250 watts; the non-LX says 3.6 watts for identical money; 193 ratings versus 322 for the non-LX, and a lower score of 4.6; 1-year manufacturer warranty ### 9. ARCTIC Freezer 36 (Black) CPU Cooler - Price: £22.99 | Amazon rating: 4.5 from 721 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/arctic-freezer-36-4935 - Buy on Amazon: https://www.amazon.co.uk/dp/B09VH14935?tag=ranked10-21 The identical cpu air cooler to the £20.49 version, £2.50 dearer, with a spec table that lists a 3-pin connector and laptop compatibility. £22.99 for the black version of the same cooler that costs £20.49 in its standard finish — £2.50 for the colour. It scores 4.5 from 721 ratings, with 80% five-star. The hardware matches the other Freezer 36: four offset heatpipes, push-pull 120 mm P fans at 200–1,800 RPM, 56.3 CFM, a 104 × 126 × 159 mm body weighing 879 g, MX-6 paste included and the Intel LGA1851/LGA1700 contact frame. The same AM5/AM4 note applies — you need the four original AMD screws from your motherboard. That said, this listing carries two errors of its own. The power connector type is given as 3-pin while the fans are described as PWM, which requires 4 pins. And the compatible devices field says "Desktop, Laptop" — a 159 mm tower does not fit in a laptop. Worth noting before you buy. If colour is not a factor, the £20.49 version is the same cooler. Pros: Identical hardware to the £20.49 Freezer 36, finished in black; 4.5 from 721 ratings, 80% five-star; 6-year warranty and MX-6 thermal paste included; Push-pull 120 mm fans at 200–1,800 RPM and 56.3 CFM Cons: £2.50 more than the standard finish for the same cooler; Power connector field says 3-pin while the fans are described as PWM (4-pin); Compatible devices field lists "Laptop", which a 159 mm tower will not fit; AM5/AM4 installation needs the original AMD motherboard screws ### 10. Cooler Master MasterLiquid 360L Core ARGB - Price: £69.95 | Amazon rating: 4.6 from 834 ratings - Full review: https://www.ranked10.co.uk/tech/best-cpu-air-coolers/cooler-master-masterliquid-360l-core - Buy on Amazon: https://www.amazon.co.uk/dp/B0C1C7XY5X?tag=ranked10-21 A 360 mm liquid cooler at £69.95 with 4.6 from 834 ratings — the only water-cooled model among these air coolers for cpu, and its radiator measurements disagree. £69.95, 4.6 from 834 ratings, 81% five-star. It is £30 cheaper than the £99.95 Noctua NH-D15, which is why it earns a place — but it is a liquid cooler, not an air cooler. Three 120 mm ARGB fans quote 71.93 CFM at 27.2 dB, more airflow than any air cooler here. The dual chamber Gen S pump sits on a redesigned copper base, and the brackets cover Intel LGA 1700/1200/1151/1150/1155/1156 and AMD AM5/AM4/AM3/AM3+/AM2+/AM2/FM2. Installation needs 360 mm of radiator mounting space in the case. The catch: the bullet describes a 394 × 119.6 × 27.2 mm radiator, while the dimensions field works out to 157 × 120 × 27 mm. Those are different sets of measurements, and you should check your case against the larger figure. Wattage is listed as 144 milliwatts. Either way, if you want an air cooler for cpu mounting and a simpler install, the £29.99 Thermalright does the job for roughly £40 less. Pros: 4.6 from 834 ratings, 81% five-star; Three ARGB fans quoting 71.93 CFM at 27.2 dB; £69.95, which is £30 less than the Noctua NH-D15; Brackets cover Intel LGA1700/1200/1151/1150/1155/1156 and AMD AM5/AM4/AM3/AM2+/FM2 Cons: Not an air cooler, so it sits outside the air-cooler comparison; Bullet says a 394 mm radiator; the dimensions field says 15.7 cm long; Wattage field reads 144 milliwatts; Needs 360 mm of case space for the radiator ## Verdict In short: for most builds the Thermalright Peerless Assassin 120 SE at £29.99 is the best cpu air cooler here on price against ratings — 4.7 from 3,133 — but buy it at that price, not the £35.90 duplicate further down. If you have 168 mm of case clearance and want the largest proven review pool, the Noctua NH-D15 is the best cpu air cooler in this list, with 11,307 ratings at 4.8. On a tight budget, the ARCTIC Freezer 36 at £20.49 covers LGA1851 and AM5 and includes MX-6 paste plus a 6-year warranty, and for a small case the single tower Noctua NH-U12S redux at 158 mm is the safer fit.