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- Noctua CPU Coolers at a Glance
- Best Noctua CPU Coolers by Tier
- Best Silent CPU Coolers: How Noctua Compares
- Best CPU Coolers be quiet! Offers for a Quiet PC
- Best Quiet AIO CPU Coolers
- Best Quiet CPU Air Coolers
- Best Quiet CPU Coolers for an i7-9700K
- Best CPU Coolers for Quiet, Cool Gaming at 95 W TDP
- Socket Kits and Compatibility Notes
- Pick X If… Decision Table
- Alternatives to Noctua
- Frequently Asked Questions
Updated November 2026 – The best Noctua CPU coolers for most builders are the NH-D15 G2 for maximum air cooling, the NH-U12A for a slimmer high-performance tower, the NH-U12S Redux for a budget-minded quiet build, and the NH-L9i-17xx, NH-L9a-AM5 or NH-L12S for small cases.
If you are searching for the best Noctua CPU coolers, the lineup is easier to read than it looks: Noctua sorts its air coolers by size, and the right pick depends on how much clearance your case gives you, which socket you use and how loud a PC you can live with. This guide walks through the current and still-sold models, the socket kits the maker lists for AM5, LGA 1700 and LGA 1851, and the questions people ask when they want a silent or quiet gaming PC. It also covers how Noctua compares with other quiet cooler brands such as be quiet!.
Noctua CPU Coolers at a Glance
| Model | Class | Best for | Key stated traits | Limits |
|---|---|---|---|---|
| NH-D15 G2 | Dual-tower flagship | High-end CPUs, quiet loads | Dual 140 mm class design, NF-A14x25 G2 fans, offset AM5 mounting, three contact versions | Very large, RAM and case clearance must be checked |
| NH-D15 | Dual-tower, previous generation | Existing builds, AM4 and older Intel | Two NF-A15 fans, long track record | Superseded by the G2 in Noctua’s range |
| NH-U12A | Single tower, 120 mm | Strong cooling in a narrower body | Two NF-A12x25 fans, chromax.black option | LGA 1700 and 1851 support may use an upgrade kit depending on the version |
| NH-U12S Redux | Single tower, 120 mm | Budget quiet air cooling | One PWM fan, grey Redux styling | One fan, fewer extras than the premium line |
| NH-U9S | Compact tower, 92 mm | Mid-size cases, tight RAM clearance | 92 mm fan, shorter height | Smaller fin area than 120 mm towers |
| NH-L12S | Low-profile, 120 mm fan | Slim cases that can fit about 70 mm | Single 120 mm fan, taller than 9 cm class coolers | Lower ceiling than full towers |
| NH-L9i-17xx / NH-L9a-AM5 | Ultra low-profile, 92 mm | Mini-ITX and HTPC builds | Roughly 37 mm tall as the maker lists, platform-specific versions | Best with efficient CPUs |
Noctua publishes an official socket overview, and it is the document to open before you buy. In that overview, the NH-D15 G2 is listed for both AM5 and LGA 1851 and LGA 1700. The NH-U12A and NH-L12S are listed for AM5, with Intel LGA 1700 and 1851 support depending on the version and on whether an upgrade kit is needed. The NH-L9i-17xx is an Intel LGA 1700 and 1851 design and is not an AM5 part, which is why the maker sells a separate NH-L9a-AM5 for that platform.
Best Noctua CPU Coolers by Tier
Noctua does not sell cheap coolers in the way budget brands do, so the tiers below are relative within the Noctua range. Budget means the Redux line, mid-range means the single-tower and compact models, and premium means the NH-D15 G2 family and chromax.black versions.
Premium tier
Noctua NH-D15 G2 – Best for Maximum Air Cooling
Dual-tower air cooler · NF-A14x25 G2 PWM fans · AM5, AM4, LGA 1851, LGA 1700 as the maker lists · Offset AM5 mounting included
The NH-D15 G2 is the current flagship and the answer most people want when they ask for the best Noctua air cooler. TechPowerUp’s review lists support for Intel LGA 1851, LGA 1700, LGA 115X and LGA 1200 as well as AMD AM4 and AM5, and it carries a title that reflects how reviewers see the trade-off: big performance, bigger price. Tom’s Hardware reaches a similar verdict, saying it improves on the original NH-D15 while questioning its value at launch pricing. In plain terms, it is a cooler for people who want the quietest high-end air solution and are willing to pay for it.
Noctua sells the G2 in three versions that differ in how convex the heatsink base is. The maker describes a standard medium-convexity version, a low-base-convexity (LBC) version and a high-base-convexity (HBC) version. Noctua’s own table recommends the standard version for most users and rates it as excellent on AM5 with the included offset mounting, on LGA 1851 with the RL-ILM retention mechanism and on LGA 1700 with the included shim washers. The HBC version is rated good rather than excellent on AM5 with offset mounting and on LGA 1851, so it is mainly for owners of bare-die or unusual lids that need that contact shape. If you are unsure, the standard version is the safe choice.
Noctua NH-D15 G2, Quiet High-Performance Dual Tower CPU Cooler | 168mm Height, Ultimate Low-Noise Cooling, 8 Heatpipes, For Intel & AMD, Dual Enthusiast-Grade 140mm Fans, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonNoctua NH-D15 G2 chromax.black – Best for Dark Builds
Dual-tower air cooler · Black heatsink and fans · Same socket support as the standard G2 · Matches dark cases and motherboards
The chromax.black version swaps the brown and beige scheme for an all-black finish. Funky Kit’s review scored it highly; the main reason to choose it is looks, not cooling.
Noctua NH-D15 G2 chromax.Black, Quiet High-Performance CPU Cooler | 168mm Height, Ultimate Low-Noise Cooling, 8 Heatpipes, For Intel & AMD, Dual Enthusiast-Grade 140mm Fans, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonNoctua NH-D15 – Best for Older Platforms and Existing Builds
Dual-tower air cooler · Two NF-A15 PWM fans · Broad AM4 and older Intel support · Previous generation to the G2
The original NH-D15 remains one of the most widely recommended air coolers of the last decade, and Noctua still lists it. It is the previous generation now that the G2 exists, so treat it as the pick for an older platform such as AM4 or an LGA 1151 system rather than as the first choice for a new AM5 or LGA 1851 build.
Noctua NH-D15, Quiet High-Performance Dual Tower CPU Cooler | 168mm Height, Enthusiast-Grade Low-Noise Cooling, 6 Heatpipes, For Intel & AMD, Dual 140mm Fans, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonMid-range tier
Noctua NH-U12A – Best for Strong Cooling in a Slimmer Body
Single-tower air cooler · Two NF-A12x25 PWM fans · 120 mm class · AM5 supported, LGA 1700 and 1851 via upgrade or chromax.black
The NH-U12A is the cooler to choose when the NH-D15 G2 will not fit or is more than the CPU needs. It uses a single tower with two 120 mm class fans, so it is narrower than a dual tower and generally easier around memory modules. Tom’s Hardware reported that retail packaging in Japan listed LGA 1851 compatibility, and Noctua has said its LGA 1700 mounting hardware is mechanically compatible with LGA 1851, which means many LGA 1700 owners can move to a newer Intel board without buying a new bracket. In Noctua’s socket overview the standard NH-U12A is marked as upgrade-optional for LGA 1700 and 1851, while the chromax.black version is listed as fully compatible. Check the box or the maker’s page for the exact kit that ships.
Noctua NH-U12A, Quiet High-Performance Single Tower CPU Cooler | 158mm Height, High-End Low-Noise Cooling, For Intel & AMD, Dual 120mm Fans, 100% RAM Compatibility, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonNoctua NH-U9S – Best for Tight RAM and Case Clearance
Compact single tower · 92 mm PWM fan · Shorter height than 120 mm towers · Wide socket coverage
The NH-U9S is the compact answer for cases that cannot fit a 158 mm class tower and for builds with tall memory. It trades fin area for size, so it suits mainstream CPUs with moderate power draw better than the hottest chips. Reviewers who want quiet operation in a mid-size case often choose a compact tower like this because the fan can run at lower speeds under light and gaming loads.
Noctua NH-U9S, Quiet High-Performance Single Tower CPU Cooler | Compact 125mm Height, ITX SFF Low-Noise Cooling, For Intel & AMD, 92mm Fan, 100% RAM Compatibility, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonBudget tier
Noctua NH-U12S Redux – Best for Budget Quiet Air Cooling
Single tower · Single 120 mm PWM fan · Grey Redux styling · Compatible with AM4, AM5 and recent Intel sockets as the maker lists
The Redux line is Noctua’s cost-conscious range. It keeps the quiet-focused design but uses simpler fans and plain grey styling. The NH-U12S Redux is a good fit for Ryzen 5 and Core i5 builds where the goal is a cooler, quieter machine without paying for the premium line. Check the maker’s compatibility list for the Redux version you are buying, because Redux and older NH-U12S revisions are not identical in their included mounting hardware, and older NH-U12S coolers were sold with LGA 1151 support but not always with newer brackets.
Noctua NH-U12S redux, Quiet High-Performance Single Tower CPU Cooler | 158mm Height, Low-Noise Cooling, 5 Heatpipes, For Intel & AMD, 120mm Fan, 100% RAM Compatibility
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonLow-profile tier
Noctua NH-L12S – Best for Slim Cases with a 120 mm Fan
Low-profile cooler · Single 120 mm fan · About 70 mm class height · AM5 supported, Intel LGA 1700 and 1851 version-dependent
The NH-L12S sits between the full towers and the ultra-compact L9 line. It has a 120 mm fan and a low-profile heatsink that leaves room above the memory in many small cases. It also works as a top-down cooler that blows air across the motherboard VRMs. Choose it when a case lists a height limit around the 70 mm mark and a 92 mm fan feels too small.
Noctua NH-L12S, Quiet High-Performance Low-Profile CPU Cooler | 70mm Height, ITX SFF Low-Noise Cooling, 4 Heatpipes, For Intel & AMD, 120mm Slim Fan, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonNoctua NH-L9i-17xx and NH-L9a-AM5 – Best for Mini-ITX and HTPC Builds
Ultra low-profile cooler · 92 mm fan · Roughly 37 mm tall as the maker lists · Intel and AMD versions are separate products
These are the coolers for the smallest cases. The NH-L9i-17xx is the Intel LGA 1700 and 1851 version and is incompatible with AM5 in Noctua’s overview, so AMD AM5 owners should use the NH-L9a-AM5. Their small heatsinks work best with efficient CPUs, since a hot, high-power chip will push the fan harder and raise noise. Treat them as the choice when height is the limit, not when performance is the goal.
Noctua NH-L9i-17xx, Quiet High-Performance Low-Profile CPU Cooler | Only 37mm Height, ITX SFF Low-Noise Cooling, For LGA1851/1700, 92mm Slim Fan, No RAM or PCIe Overhang, Rich Accessory Kit
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' because the listing adds cooling or gel-infused layers, which is the attribute this article compares.
View on AmazonBest Silent CPU Coolers: How Noctua Compares
For the best silent CPU coolers, Noctua is the usual reference point because its fans are designed for low noise at lower speeds, and the larger the heatsink, the less speed the fan needs to move the same heat. A big dual tower such as the NH-D15 G2 is often the quietest way to cool a high-end CPU for that reason. The point to remember is that silence comes from headroom: a cooler rated well above your CPU’s power can run its fans slowly.
This article does not quote measured noise or temperatures because they depend on the case, fan curve and CPU. Reviewers report that Noctua’s top air coolers are among the quietest in the high-end class.
Best CPU Coolers be quiet! Offers for a Quiet PC
Readers who search for the best CPU coolers be quiet! makes are usually comparing it with Noctua. be quiet! sells large dual-tower air coolers such as the Dark Rock Pro 5 and the Dark Rock Pro 4 from the previous generation, and the maker lists generous cooling capacities for them. Reviewers describe the Dark Rock Pro line as a black, quiet alternative to the NH-D15, with a heavy build and a focus on low noise. be quiet! also sells all-in-one liquid coolers in its Pure Loop and Silent Loop ranges. The practical difference is style and clearance: Noctua offers more size options, including low-profile models, while be quiet! concentrates on large towers and radiators. If you want a black cooler without paying for chromax.black, the be quiet! towers are worth a look; if you want a low-profile or compact option, Noctua has more choices.
Best Quiet AIO CPU Coolers
Noctua does not sell all-in-one liquid coolers, so for the best quiet AIO CPU coolers you look to other makers. Arctic’s Liquid Freezer III range, be quiet!’s Silent Loop line and Corsair’s larger radiator models are the names that come up most. Tom’s Hardware’s reviewer calls the Liquid Freezer III Pro 360 a standout in noise-normalized performance, which is the measure that matters for quiet builds. The sensible approach for a quiet PC is a larger radiator, because a 360 mm radiator can move heat at lower fan speeds than a 240 mm one. Pump noise and case airflow still matter, so a quiet AIO is not automatically quieter than a good air cooler.
Best Quiet CPU Air Coolers
The best quiet CPU air coolers combine a large fin stack, a slow-spinning fan and even mounting pressure, which points to the NH-D15 G2, NH-U12A and NH-U9S on the Noctua side. A gentle fan curve in the BIOS keeps fans slow until the CPU warms up.
Best Quiet CPU Coolers for an i7-9700K
The Core i7-9700K is an LGA 1151 (Coffee Lake Refresh) processor with a rated TDP of 95 W according to Intel, and it shipped without a boxed cooler. It is previous generation hardware, so any cooler you buy has to include the older LGA 115X bracket. Noctua’s NH-D15 G2 lists LGA 115X support in TechPowerUp’s review, the original NH-D15 and older NH-U12S models also supported LGA 1151, and the Redux version should be checked against the maker’s list. For a quiet i7-9700K, a large tower such as the NH-D15 or NH-D15 G2 is the most common pick, and the NH-U12S is the smaller option. This site’s separate guide to LGA 1151 coolers covers the full older-platform picture.
Best CPU Coolers for Quiet, Cool Gaming at 95 W TDP
For quiet gaming with a 95 W class CPU, you do not need a flagship. The maker-rated capacity of a good single-tower cooler is well above 95 W, which lets the fan stay slow in games. The NH-U12S Redux or NH-U12A covers that range comfortably, and the NH-U9S works if the case is tight. Gaming loads also tend to be lower than all-core stress tests, so a cooler that is rated above your CPU’s TDP should stay quiet during play. Spend the extra money on case airflow and good fan curves before moving up to a flagship.
Socket Kits and Compatibility Notes
| Model | AM5 | LGA 1700 / 1851 | Note |
|---|---|---|---|
| NH-D15 G2 (all versions) | Yes | Yes | Offset AM5 mounting and shim washers included as the maker lists |
| NH-U12A | Yes | Upgrade-optional; chromax.black fully compatible | Check the box for the included kit |
| NH-L12S | Yes | Upgrade-optional | Low-profile height limit applies |
| NH-L9i-17xx | No | Yes | Intel-only version |
| NH-L9a-AM5 | Yes | No | AMD AM5 version |
Noctua says its LGA 1700 hardware is mechanically compatible with LGA 1851, so most LGA 1700 coolers can be reused. For AM5, mounting uses the motherboard’s existing backplate and bracket arrangement, and Noctua provides offset mounting on the NH-D15 G2 for better contact. Many Noctua coolers sold before late 2022 do not include LGA 1700 or AM5 hardware, and the maker offers upgrade kits. Always compare the product listing against the maker’s compatibility page for your exact socket.
Fan colors: classic Noctua fans are brown and beige, chromax.black versions are all black, and the Redux line is plain grey. The color does not change the heatsink design.
Pick X If… Decision Table
| Pick this | If you |
|---|---|
| NH-D15 G2 | Have a roomy case and a high-end CPU, and want the quietest air option |
| NH-D15 G2 chromax.black | Want the same cooler in an all-black look |
| NH-D15 | Are building on AM4 or an older Intel platform and want a proven design |
| NH-U12A | Want strong cooling without a dual tower |
| NH-U12S Redux | Want a budget quiet cooler for a mainstream CPU |
| NH-U9S | Have limited height or RAM clearance |
| NH-L12S | Need a low-profile cooler with a 120 mm fan |
| NH-L9i-17xx or NH-L9a-AM5 | Are building a very small mini-ITX or HTPC system |
Alternatives to Noctua
be quiet! Dark Rock Pro 5 – Best for a Black Quiet Dual Tower
Dual-tower air cooler · Black finish · Large heatsink with quiet-focused fans · Sold for current AMD and Intel sockets, check the maker’s list
The Dark Rock Pro 5 is the direct be quiet! rival to the NH-D15 G2 and suits buyers who want a black cooler with a quiet design. Like other dual towers, it needs generous case and memory clearance.
Thermalright Peerless Assassin 120 SE – Best Value Dual Tower
Dual-tower air cooler · Two 120 mm fans · Dual-tower design with six heat pipes as listed by the maker · Widely praised by reviewers for value
Tom’s Hardware names it a leading air cooler for most people, and many roundups pick it as the value choice. It is a sensible alternative when the premium cost of the NH-D15 G2 is the sticking point.
Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200/1851,PC Cooler
Included for 'Best Noctua CPU Coolers in 2026: NH-D15 G2, NH-U12A, NH-L9 and Low-Profile Options' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on AmazonArctic Liquid Freezer III – Best Quiet AIO Alternative
All-in-one liquid cooler · 240, 280, 360 and larger radiators as the maker lists · Contact frames for current AM5 and Intel sockets
Reviewers report that the Liquid Freezer III range performs strongly in noise-normalized comparisons, making it the AIO alternative to Noctua’s air coolers.
Frequently Asked Questions
What is the best Noctua CPU cooler overall?
The NH-D15 G2 is the best Noctua air cooler for pure cooling performance. The NH-U12A is the better choice when you want a narrower cooler that fits more cases. Both are well suited to quiet systems when the fans are set to a low-speed curve.
Does Noctua make an AIO liquid cooler?
No, Noctua focuses on air coolers and fans and does not sell all-in-one liquid coolers. Buyers who want a quiet AIO usually look at Arctic, be quiet! or Corsair. Noctua fans can sometimes be used on third-party radiators if the sizes match.
Do Noctua coolers fit AM5 and LGA 1851?
Most current models do. Noctua’s socket overview lists the NH-D15 G2 for both AM5 and LGA 1851 and LGA 1700, and the maker says its LGA 1700 hardware is mechanically compatible with LGA 1851. Some models, such as the NH-U12A, may need an upgrade kit, and the NH-L9i-17xx is Intel-only.
Which Noctua cooler is best for a low-profile case?
The NH-L12S suits cases that allow about 70 mm of height, and the NH-L9i-17xx or NH-L9a-AM5 suit the smallest cases. Always compare the cooler’s listed height with your case’s maximum cooler height. Low-profile coolers work best with efficient CPUs.
Is the NH-D15 G2 worth it over the original NH-D15?
Reviewers describe the G2 as an improvement but not a bargain. TechPowerUp titles its review around big performance and a bigger price, and Tom’s Hardware questions the value. If you are on an older platform and already own or can find an NH-D15, it is still a capable cooler.
Are Noctua coolers good for quiet gaming PCs?
Yes, quiet operation is a core part of Noctua’s design approach. A cooler rated well above your CPU’s power can run its fans slowly during gaming. Case airflow, fan curves and the rest of your fans also affect total noise.
