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Noctua NH-L9x65 Low Profile Heatsink Review
Noctua NH-L9x65 Low Profile Heatsink Review
Overall Rating:   71%
Abstract: Noctua's low profile NH-L9x65 heatsink stands just 64mm tall and has a very compact footprint of only 95x95mm. The NH-L9x65 is designed to cool some fairly intensive Intel sockets, along with the full spectrum of AMD processors and APUs. Compact CPU coolers can be a little tricky to install, but Noctua long ago laid down the framework of an excellent motherboard mounting system,, so the NH-L9x65 is a breeze to work with.

 Company link     Category     Published     Author    
Noctua   $$ Price It! ££ Cooling / Heatsinks   Apr 10, 2016   Max Page  
Home > Reviews > Page Title: 200 Watt Intel LGA2011 Heatsink Temperature Comparisons

FrostyTech Mk.III Synthetic Thermal Heatsink Test Results
Intel Core i7, Extreme Edition class heatsinks tested at a 200W heat load.
Results based on readings from a 38x38mm copper interface die with 200W heat load on the Intel version of the Mk.III Test Platform. Temperature results listed for each heatsink were calculated by determining the rise over ambient temperatures at time of test. Information on Frostytech's test methodology is available here.
Socket LGA2011-3 / 2011 /1366 compatible CPU heatsinks
Manufacturer: Model No.: *Fan Speed: 200W Thermal Test (°C) Noise Level (dBA)

Coolermaster Nepton 280L high 10.6 58.8
Coolermaster Nepton 140XL high 11.8 59.6
Arctic Liquid Freezer 240 high 12.2 46.0
Coolermaster Seidon 240M high 13.4 55.6
Silverstone Tundra TD02 high 13.6 53.0
DeepCool Maelstrom 240 high 13.8 58.6
Coolermaster Glacer 240L high 14.1 52.5
NZXT Kraken X60 high 14.5 60.7
Coolermaster Nepton 240M high 15.1 50.6
Noctua NH-D15 high 15.8 49.8
Noctua NH-U14S 17.0 47.3
Arctic Liquid Freezer 120 high 17.3 46.0
Coolermaster Seidon 120V high 17.5 54.3
NZXT Kraken X40 high 18.2 59.4
Reeven Okeanos RC-1402 high 18.3 54.2
Reeven Ouranos RC-1401 high 18.4 52.5
Silverstone Tundra TD03 high 18.7 58.1
Silverstone Argon AR01 high 18.8 53.0
X2 Products Eclipse IV high 19.1 57.4
Coolermaster Eisberg 240L high 19.1 50.5
BeQuiet Dark Rock TF 19.2 44.5
Reeven Justice RC-1204 high 19.2 48.5
BeQuiet Dark Rock Pro 3 high 19.5 43.7
Scythe Fuma high 19.6 49.1
Raijintek Themis high 19.7 52.8
Coolermaster V8 GTS high 20.0 59.7
BeQuiet Dark Rock 3 high 20.9 41.8
Corsair Hydro H80i high 21.1 64.0
Noctua NH-U12S 21.1 46.2
Raijintek Ereboss high 21.4 49.7
Zalman Reserator 3 Max high 21.6 58.9
Scythe Mugen 4 high 21.7 41.9
Zalman LQ315 high 21.9 50.8
Silverstone NT06-P high 22.1 51.6
Raijintek Pallas high 22.2 43.2
Scythe Ashura SCASR-1000 high 22.5 49.4
DeepCool Gamer Storm Lucifer high 23.0 52.5
Raijintek Aidos high 23.0 55.6
Reeven Hans RC-1205 high 23.1 49.4
Gamerstorm Lucifer K2 high 23.2 55.2
Silentium Fera2 HE1224 high 23.4 37.6
Zalman LQ310 high 23.8 52.7
Coolermaster Hyper D92 high 24.1 53.4
Phanteks PH-TC14S high 24.2 47.4
Scythe Ashura Shadow (SCASR-1000SE) high 24.2 51.4
Raijintek Tisis high 24.6 47.8
BeQuiet Shadow Rock Slim high 24.7 40.4
BeQuiet Shadow Rock 2 high 24.9 43.3
Scythe Ninja 4 high 25.5 43.2
Zalman LQ320 high 25.5 50.2
ID-Cooling SE-214X high 26.5 46.3
Gelid Antarctica (LGA1366) high 26.6

49.8

Noctua NH-D9DXi4 3U (front +2nd Fan) 27.7 47.4
BeQuiet Shadow Rock LP 27.9 42.6
BeQuiet PureRock 27.9 42.9
npowertek NPH-1366-115HC (LGA1366) high 28.7 44.8
Dynatron G556 (LGA1366/2U) 29.1 68.4
Noctua NH-U9S 30.2 44.3
Dynatron G555 (LGA1366/2U) 30.4 67.8
Dynatron G666 (LGA1366/2U) 31.8 68.7
Noctua NH-D9L 32.0 43.2
Scythe Mugen Max SCMGD-1000 high 34.2 48.7
Noctua NH-D9DXi4 3U 34.9 44.6
Silverstone NT01-Pro high 35.8 40.4
nPowerTek NPH1366-140HC (LGA1366) high 36.3 48.1
Phanteks PH-TC12LS high 36.4 43.4
Zalman FX-100 (w/h ZM-F2 fan) 36.9 28.5
Noctua NH-L9x65 high 44.8 46.1
Dynatron G199 (LGA1366/1U) 47.6 62.6
Noctua NH-L9x65 low 56.0 39.1
Zalman FX-100 (hor, ver) 63.0 0.0
200W Thermal Test (°C) Noise Level (dBA)
*Heatsinks are ranked according to the 200W Thermal Test results column (rise over ambient temp.). Low temperatures with low noise levels are considered best. For reference heatsinks with variable-speed fans, only the high speed (12V) fan test result is included in the comparison sheet; more detailed results reside in each specific heatsink review.

Frostytech's socket LGA2011 Intel synthetic thermal test platform stresses socket LGA2011/1366 compatible heatsinks with a 200W heat load. Keep in mind that the AMD Integrated Heat Spreader and Intel LGA2011 Integrated Heat Spreader both measure ~38x38mm, so these test results can be extrapolated to AMD processor scenario's as well.

With a 200W heat load applied by the Intel LGA2011/1366 version of FrostyTech's synthetic thermal test platform, the low profile Noctua NH-L9x65 heatsink is only able to yield a satisfactory temperature result of 44.8°C over ambient at stock fan speed. Reducing fan speed to 1800RPM results in a less than satisfactory result of 56.0°C over ambient.

If we filter the 200W Intel heatsink reference chart down to sub-65mm tall and sub-110mm wide coolers, the Noctua NH-L9x65 is the best cooler thus far tested for the LGA2011 platform. Although the NH-L9x65 heatsink doesn't support LGA1366 processors, a couple LGA1366 low profile heatsinks do come out ahead for the sake of argument, by up to 15.7°C.

Ultimately, where sub-65mm tall and sub-110mm wide low profile coolers are required, the Noctua NH-L9x65 doesn't exactly stand out when it comes to sheer cooling performance. However, in terms of current generation processor socket compatibility and the availability of the legacy model heatsinks we've mentioned, there really aren't many low profile alternatives.

As a final note, we can't help but think that the Noctua NH-L9x65 heatsink we tested was held back by reduced contact surface area due to its convex base plate... so there's that, too.

Manufacturer's Response:

"Like many other manufacturers, we we deliberately manufacture our heatsinks with a slightly convex base because it allows for better results on most of today's CPUs. The reason for this is that with LGA115x CPUs, the IHS is deformed by the pressure from the ILM pads, so while they are usually fairly flat as such, they become concave in one axis once you put them in the socket and close the ILM. As a result, heatsinks with a slightly convex base that matches this structure can provide significantly better results. On AMD, we usually see slightly better results with convex bases as well, mostly due to the increased pressure on the center of the IHS. On LGA2011-3, flat and convex bases generally perform the same. While there is some variance from CPU to CPU, in sum, users will see better results with slightly convex bases. We are aware that a convex base represents a drawback on synthetic test platforms such as the one used by Frostytech.com, which use flat heating elements, but since our customers demand the best possible performance on real world CPUs, this is what we optimise our designs for." (Jakob Dellinger, Noctua Press and PR)

Related Articles:

The Top 5 best heatsinks for low noise and low temperature are ranked here. For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 400+ heatsink reviews. Here are a few other articles that you might enjoy as well.

- Noctua NH-D9DXi4-3U LGA2011 Xeon Server/Workstation Heatsink Review
- Scythe Fuma SCFM-1000 Heatsink
- Scythe Ninja 4 SCNH-4000 Heatsink Review
- DeepCool Maelstrom 240 Liquid Cooling System Review
- DeepCool Gamer Storm Lucifer K2 Heatsink Review
- Gelid Antarctica Heatsink Review
- Noctua NH-D9L 3U Low Noise Heatsink Review

 Previous Page ° The Top 5 Heatsinks...

Article Contents:
 Page 1:  Noctua NH-L9x65 Low Profile Heatsink Review
 Page 2:  360° View - Noctua NH-L9x65 Heatsink
 Page 3:  Acoustic Comparisons and Base Surface Quality
 Page 4:  125 Watt AMD Heatsink Temperature Comparisons
 Page 5:  150 Watt Intel LGA115x Heatsink Temperature Comparisons
 Page 6:  — 200 Watt Intel LGA2011 Heatsink Temperature Comparisons

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Time stamped: 5:41PM, 04.23.2017



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