# Best CPU Coolers: the stierproducts tier list - Source: https://stierproducts.com/categories/cpu-coolers - Last researched: 2026-08-17T14:55:45.236Z - Products ranked: 17 - Method: https://stierproducts.com/methodology - Reuse: Text, rankings, tier assignments, LP values and verdicts are free to quote and reuse with attribution to stierproducts and a link to the source URL (CC BY 4.0: https://creativecommons.org/licenses/by/4.0/). Product photographs are not covered: they belong to their respective owners and are reproduced to illustrate the product being reviewed. Do not redistribute them under this licence. PC CPU air/AIO liquid coolers. ## Summary The Arctic Liquid Freezer III Pro 360 is the best CPU cooler for most people. It is the only S tier product on our CPU coolers board, ranked across independent research runs over current expert reviews, and it pairs top-class thermals with a 6-year warranty that Arctic has a strong record of honoring. The A tier runners-up are the Noctua NH-D15 G2, the best air cooler reviewers have tested with no pump to fail, and the Thermalright Phantom Spirit 120 SE, a dual-tower air cooler at a budget price. If you want the longest possible service life with nothing to wear out but a fan, pick the Noctua NH-D15 G2. If you want strong air cooling for very little money, pick the Thermalright Phantom Spirit 120 SE or the Thermalright Peerless Assassin 120 SE. Avoid the Corsair iCUE Link Titan 360 RX LCD, the Cooler Master Hyper 212 Black Edition and the NZXT Kraken Elite 360, all in F tier. ## Ranking | Rank | Product | Brand | Tier | LP | Outlets | Verdict | Page | | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | Arctic Liquid Freezer III Pro 360 | Arctic | S | 965 | 33 | The best AIO to actually own: top thermals, 6-year warranty, and Arctic's support reputation. Ranked below the air coolers only because every AIO carries pump and permeation wear. | https://stierproducts.com/products/arctic-liquid-freezer-iii-pro-360 | | 2 | Noctua NH-D15 G2 | Noctua | A | 775 | 75 | Best air cooler ever tested, no pump to fail, 6-year warranty, free socket upgrades for future platforms. The most ownership-proof product in the category. | https://stierproducts.com/products/noctua-nh-d15-g2 | | 3 | Thermalright Phantom Spirit 120 SE | Thermalright | A | 726 | 11 | The Peerless Assassin formula, slightly refined; loses a spot to its sibling purely on having a shorter track record. | https://stierproducts.com/products/thermalright-phantom-spirit-120-se | | 4 | Lian Li Galahad II Trinity Performance 360 | Lian Li | B | 636 | 14 | Superb performance with a 5-year warranty, docked for pump-top display and software dependencies the Nautilus avoids. | https://stierproducts.com/products/lian-li-galahad-ii-trinity-performance-360 | | 5 | Thermalright Grand Vision 360 | Thermalright | B | 579 | 27 | Ranked #6: strong thermals plus an LCD display at a price that humiliates the premium screen-coolers. | https://stierproducts.com/products/thermalright-grand-vision-360 | | 6 | Thermalright Peerless Assassin 120 SE | Thermalright | B | 551 | 18 | Near-flagship air performance at budget money per Tom's Hardware; at this price, even an out-of-warranty failure costs almost nothing to fix. | https://stierproducts.com/products/thermalright-peerless-assassin-120-se | | 7 | ID-COOLING FX360 PRO | ID-COOLING | C | 493 | 2 | Ranked #4: GamersNexus' budget AIO king; 360mm liquid cooling at air-cooler money. | https://stierproducts.com/products/id-cooling-fx360-pro | | 8 | Arctic Freezer 36 | Arctic | C | 442 | 29 | The budget air pick with a flagship warranty; for most mid-range builds it makes more expensive coolers irrational. | https://stierproducts.com/products/arctic-freezer-36 | | 9 | be quiet! Dark Rock Pro 5 | be quiet! | C | 433 | 13 | Noctua-grade build and the quietest premium air experience, held back by a shorter 3-year warranty and a higher price. | https://stierproducts.com/products/be-quiet-dark-rock-pro-5 | | 10 | Noctua NH-D15 (original, chromax.black) | Noctua | C | 399 | 35 | Nearly the same ownership story as the G2 with a decade of field-proven reliability behind it; ranked second only because the G2 cools better for new buyers. | https://stierproducts.com/products/noctua-nh-d15-original-chromax-black | | 11 | Corsair Nautilus 360 RS | Corsair | C | 386 | 18 | A no-software, no-RGB 360mm AIO that a group test called among the best AIOs tested; simplicity is its longevity story. | https://stierproducts.com/products/corsair-nautilus-360-rs | | 12 | MSI MAG CoreLiquid A13 360 | MSI | D | 268 | 17 | The weakest case for ownership: adequate-at-best performance, unremarkable pump and fans, and the thinnest cooler-specific support story here; buy an ID-COOLING FX360 PRO or a Thermalright air tower instead. | https://stierproducts.com/products/msi-mag-coreliquid-a13-360 | | 13 | be quiet! Pure Rock Pro 3 | be quiet! | D | 259 | 7 | A competent, durable mid-range air cooler with nothing to fail but a fan; unremarkable in the best way. | https://stierproducts.com/products/be-quiet-pure-rock-pro-3 | | 14 | DeepCool Assassin IV | DeepCool | D | 243 | 27 | The best hardware on this list that you should not buy: post-sanctions, US warranty and support are effectively void, and an unserviceable product finishes last. Buy the NH-D15 G2 or Dark Rock Pro 5. | https://stierproducts.com/products/deepcool-assassin-iv | | 15 | Corsair iCUE Link Titan 360 RX LCD | Corsair | F | 96 | 10 | Great thermals buried under proprietary connectors, an expensive LCD pump-top, and the iCUE software burden; the Nautilus 360 RS is the same brand's better answer. | https://stierproducts.com/products/corsair-icue-link-titan-360-rx-lcd | | 16 | Cooler Master Hyper 212 Black Edition | Cooler Master | F | 86 | 37 | Still a functional, reliable air cooler, so it beats the troubled AIOs below on pure durability, but the Peerless Assassin 120 SE has made it pointless at its price. Buy the Thermalright. | https://stierproducts.com/products/cooler-master-hyper-212-black | | 17 | NZXT Kraken Elite 360 | NZXT | F | 60 | 39 | Mediocre value wrapped around an LCD and chained to CAM software; the Arctic Liquid Freezer III Pro 360 out-cools it for less with a longer warranty. | https://stierproducts.com/products/nzxt-kraken-elite-360-rgb | ## Flagged as ones to avoid These entered one or more research runs as a product buyers cross-shop but should not buy, rather than as a pick. - Noctua NH-D15 (original, chromax.black) (#10, C tier): flagged by 2 of 6 runs. - Corsair Nautilus 360 RS (#11, C tier): flagged by 1 of 8 runs. - DeepCool Assassin IV (#14, D tier): flagged by 1 of 6 runs. - Corsair iCUE Link Titan 360 RX LCD (#15, F tier): flagged by 3 of 9 runs. - Cooler Master Hyper 212 Black Edition (#16, F tier): flagged by 2 of 5 runs. - NZXT Kraken Elite 360 (#17, F tier): flagged by 3 of 9 runs. ## Frequently asked questions ### Are liquid CPU coolers better than air coolers? Not for most people. On our board the Arctic Liquid Freezer III Pro 360 ranks first on thermals and warranty, but the research notes every all-in-one liquid cooler carries pump wear and gradual coolant permeation that cap its lifespan. The Noctua NH-D15 G2 and Thermalright Phantom Spirit 120 SE in A tier are air coolers with no pump to fail and nothing mechanical to wear out but a fan. Buy liquid if you want the best raw cooling or a cleaner look around the socket. Buy air if you want the longest service life with the least to go wrong. ### How long do CPU coolers last? A tower air cooler can outlast the PC it is in, because its only moving part is a fan and fans are cheap to replace. The research calls the be quiet! Dark Rock Pro 5 a set-and-forget decade-long component, and the Noctua NH-D15 (original, chromax.black) has a decade of field-proven reliability behind it. All-in-one liquid coolers are shorter lived. Pump bearings wear and coolant slowly permeates out of the tubing, so plan on replacing an AIO rather than keeping it for life. Warranty length is the best guide to what the maker expects. Arctic and Noctua give 6 years, Lian Li gives 5, and be quiet! gives 3. ### Do CPU coolers come with thermal paste? Almost all retail CPU coolers include thermal paste, either pre-applied to the cold plate or as a small tube or syringe in the box. Check the contents list before you buy a separate tube. If the paste is pre-applied, do not add more on top, and do not touch the pad before mounting. If you remove and refit the cooler later, clean both surfaces and apply fresh paste. ### Are CPU coolers universal, and do they fit every motherboard? No cooler fits everything, but the mainstream ones come with brackets for the current Intel and AMD sockets. Check the socket list on the box against your motherboard, and check the cooler height against your case. Mounting support for future sockets is a real differentiator. On our board both the Noctua NH-D15 G2 and the Noctua NH-D15 (original, chromax.black) are backed by Noctua's proven policy of free mounting kits for new sockets, which is one reason they rank so well for long-term ownership. ### How do you check RAM clearance with an air cooler? Compare the cooler's stated RAM clearance, usually given in millimetres, against the height of your memory modules including any heat spreader. On a dual-tower cooler the front fan often sits over the memory slots, and many makers let you slide that fan up to clear taller sticks at the cost of a few millimetres of total height. If your memory has tall decorative heat spreaders, a wide dual-tower cooler can block a slot entirely. An all-in-one liquid cooler avoids the problem because only a low pump block sits over the socket. ### Do liquid CPU coolers need maintenance? A sealed all-in-one needs no refilling, but it is not maintenance free. Dust the radiator fins every few months so airflow stays clear, and keep the radiator mounted with its top edge higher than the pump so any air pocket collects in the radiator rather than the pump. Listen for a gurgle or a rattle from the pump, which is the usual sign coolant has permeated out over the years. The research on our board singles out software as a hidden upkeep cost. The Corsair iCUE Link Titan 360 RX LCD and the NZXT Kraken Elite 360 both depend on utilities with long records of bloat and bugs, while the Corsair Nautilus 360 RS and the Arctic Liquid Freezer III Pro 360 largely avoid that dependency. ### Which CPU cooler brand is most reliable? Noctua and Arctic have the strongest support reputations on our board. Both give a 6-year warranty, the Noctua NH-D15 G2 has the best long-term support reputation in the industry per the research, and the Arctic Liquid Freezer III Pro 360 is rare among liquid coolers in having a warranty record that matches its review scores. Thermalright coolers rank well for value rather than support, and the Thermalright Peerless Assassin 120 SE is cheap enough that even an out-of-warranty failure costs almost nothing to fix. The opposite case is the DeepCool Assassin IV, excellent hardware whose US warranty and spare parts became effectively void after 2024 sanctions. ### What should you avoid when buying a CPU cooler? Avoid paying a premium for features that add failure points without adding cooling. The research docks the Corsair iCUE Link Titan 360 RX LCD for its proprietary connector chain and LCD pump-top, and the NZXT Kraken Elite 360 for a large price premium over rivals that cool just as well. Avoid a brand you cannot get serviced in your country, which is why the DeepCool Assassin IV finishes in D tier. Avoid coasting names too. The Cooler Master Hyper 212 Black Edition still works, but the Thermalright Peerless Assassin 120 SE beats it on cooling and noise for roughly the same money. ### Is an LCD pump display worth paying for? Only if you get it cheaply. The research treats a pump-top screen as added cost and added failure surface, which counts against the Corsair iCUE Link Titan 360 RX LCD, the NZXT Kraken Elite 360 and, to a lesser degree, the Lian Li Galahad II Trinity Performance 360. The exception on our board is the Thermalright Grand Vision 360, which pairs strong thermals with an LCD display at a price where the premium brands charge double for the same feature set. If the screen matters to you, that is the one to look at. ### How many CPU coolers do you need? One. A CPU has a single socket and a single cooler mounts on it. The question usually comes from confusion with case fans, which move air through the case and are separate from the cooler. A tower cooler brings its own one or two fans, and a 360mm all-in-one brings three fans for its radiator. You still want at least one intake and one exhaust case fan so the cooler has fresh air to work with. ### Who should not buy a liquid cooler? Anyone who wants to fit a cooler once and forget it for ten years. On our board the Noctua NH-D15 G2 is called the most ownership-proof product in the category, and the be quiet! Dark Rock Pro 5 is described as having essentially no wear-out mechanism beyond its fans. Owners of mid-range CPUs also gain little from liquid. The research says the Arctic Freezer 36 removes every argument for a more complicated cooler on mid-range chips. Liquid makes sense for flagship CPUs, for cases with poor clearance over the socket, or for builders who want the radiator look. ## Tier meanings - S: Exceptional. Finishes top run after run; capped at 3 slots per category. - A: Excellent. Strongly recommended, beaten only by the very best. - B: Good. A solid choice with real caveats worth knowing. - C: Fair. Acceptable in the right situation, outclassed at its price. - D: Weak. Hard to recommend when better options cost similar money. - F: Avoid. The evidence points you elsewhere. ## How to read this - Each category is researched in four independent runs, one per lens (expert consensus, value, reliability, community pulse). Every run ranks a board of candidates that deliberately includes products buyers cross-shop but should avoid. Placements score on a ranked ladder (LP), and tiers are derived from LP, so no tier is ever assigned by hand. - LP is the product's points on this category's ladder. It is comparable within a category and not across categories. - Outlets is how many distinct outlets are cited for that placement. The per-product page lists each citation, and shows which of their links were fetched and confirmed before publishing. - Nothing is hidden: every product the research placed is on this board.