In for a much needed review is the Noctua NH-D12L. This is a dual tower CPU cooler, featuring an MSRP of $89.95 USD.

The NH-D12L is an asymmetrical dual tower cooler featuring a 145 mm height, five heat-pipes, and a single NF-A12x25R PWM fan. This effectively gave the cooler a 148 NSPR which is basically Noctua’s own performance rating.

Disclosure: Noctua supplied the NH-D12L for the purpose of this review. The company did not ask me to say anything particular about it.

Technical Specifications

Compatibility Intel 115X, 1200, 1700, 20XX; AMD AM4, AM5
Type Tower
Material Aluminum (Fins), Copper (Base, Heat-pipes)
Speed 450-200 RPM
Noise 22.6 dBA
Airflow 60 CFM
Length 113 mm
Width 125 mm
Height 145 mm
Weight 890 grams

Packaging and Accessories

The Noctua NH-D12L comes in a huge three part packaging.

Noctua NH D12L CPU Cooler 1

Scope of delivery are as follows:

  • NF-A12x25r PWM premium fan
  • NA-RC14 Low-Noise Adaptor (L.N.A)
  • NT-H1 high-grade thermal compound
  • Fan-clips for second NF-A12x25R
  • SecuFirm2 mounting kit
  • Noctua metal case-badge

Keeping up with tradition, the NH-D12L comes with everything you should expect from Noctua.

Design, Build and Connectivity

The Noctua NH-D12L is a chunky yet rather small twin tower in comparison to lets say the legendary NH-D15. Its like a smaller version of it, really.

Noctua NH D12L CPU Cooler 4

Five copper heat-pipes populate the dense array of aluminum fins. Like many Noctua coolers, the sides are enclosed to maximize heat dissipation. The NH-D12L also comes with extra mounting points for a fan or two.

Noctua NH D12L CPU Cooler 5

The base plate is nickel coated copper – which is the same coating used for the heat-pipes. This protects the copper finish from oxidation, the elements and what have you.

Noctua NH D12L CPU Cooler 2

The NH-D12L comes with NF-A12x25R fan. It is a 120 mm fan with a max RPM of 2000 (1700 with LNA) and odd hole spacings at 93 x 83 mm. It is made to interact with coolers such as, where it could use the space in-between the mounting points for a flush installation. This fan is enough for the whole package to attain its 148 NSPR rating.

Noctua NH D12L CPU Cooler 6

The cooler is typical of what you’d expect with Noctua.


Thermal performance with the AMD Ryzen 5 7600 is great across all PWM levels tested. This is a capable dual tower cooler in a single fan configuration, featuring an average load temperature of 80.41 °C at 2000 RPM. I have seen better, but for its class, the NH-D12L sure is a performer.


Sustained CPU clock speed and power are also the metrics we check out. For power, where we want to focus at is the sustained CPU package power at load. Here, the cooler could sustain the CPU at 89.08 W, peaking even at 90.05 W. Now the average effective clock speed is rated at 4868.05 MHz at 100% PWM. Expect a bit more performance out of your CPU at this level. With the results at hand, I would strongly suggest maxing out at 75% PWM if you are keen to own this cooler.

OCCT | Power
PWM (%) Power (W) Frequency (MHz)
25 86.64 4814.08
50 88.40 4829.83
75 89.07 4854.13
100 89.08 4868.05


Like many Noctua coolers, the NH-D12L excels at noise output. Here, we measured a maximum of 39.0 dBA, which is still within the realms of quietness. That’s at 2017.05 RPM, mind you.

Sound Level Meter | Noise
PWM (%) Noise (dBA) Speed (RPM)
25 30 (≤) 604.80
50 30 (≤) 1157.07
75 33 1599.29
100 39 2017.05

Final Thoughts

The NH-D12L continues the long standing tradition of Noctua. That includes its excellent build quality, cooling and acoustic performance along with its rich bundle of accessories.

I have nothing much to say in a negative manner with regards to the NH-D12L. Perhaps the lack of colorway in contrast to the NH-U12A or rather, Noctua’s own Chromax line up. I am pretty sure Noctua is cooking up one though since I’ve heard it somewhere at Computex 2023. Regardless, this cooler is close to perfection, especially for SFF enthusiasts looking to maximize the available space on their compact systems while still maintaining a good blend of cooling performance and acoustics.

If you are limited to something akin to a 4U rack’s clearance (150-ish mm) and wants to maximize your build’s potential, then the NH-D12L is the CPU cooler for you. It also comes with a mighty 6-year warranty which is always a huge plus.

Noctua NH-D12L $89.95 USD
Editors Award

Product Name: Noctua NH-D12L

Product Description: The NH-D12L is a low-height 120 mm class CPU cooler that has been conceived to combine outstanding quiet cooling performance with superior case compatibility.

Brand: Noctua



With a 6-year warranty and an amazing performance considering its size, the Noctua NH-D12L is easily one of the best 120 mm class air coolers you could buy.

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