Noctua NH-U12P: Top Performance AND Silence
by Wesley Fink on March 20, 2008 8:00 PM EST- Posted in
- Cases/Cooling/PSUs
CPU Cooling Test Configuration
All tests use our new cooling test bed. This consists of a Rosewill R604-P-SL case sold by Newegg without a power supply. The Rosewill is typical of a moderately priced mid-tower case our readers might own. We chose this case because it is a Newegg top seller and includes a variable front intake louver and a quiet 120mm exhaust fan at the rear of the case. The case is also screw-less with components held in place by plastic holders instead of metal-to-metal connections. This appears to reduce case vibration and noise.
The power supply is a Corsair HX620W, which has proven in benchmarks to be an exceptionally quiet unit. The HX620W features a variable speed fan and a down-facing intake fan mounted just above the CPU space in the case. To eliminate the video card as a source of noise we have moved to a fanless card. Since we will move to Vista and DX10 in the very near future, the test bed runs an MSI NX8600 GTS that supports DX10 and cools with heatsinks and heatpipes. The reduced noise power supply and fanless video card help to dramatically lower system noise in the test bed.
The motherboard is an ASUS P5K Deluxe. This P35 chipset motherboard has exhibited outstanding overclocking capabilities in our testing. It can also mount the newest 1333 FSB Intel Core processors and can handle our existing high-speed DDR2 memory. The P5K3 uses heatsinks and heatpipes to cool board components so all motherboard cooling is passive. There are no active cooling fans to generate unwanted noise during testing.
The 120mm exhaust fan mounted to the rear of the case is below the system noise floor. We run that fan during performance and overclocking tests. However, system noise can be cumulative, so we turn off the exhaust fan during noise testing.
Cooling Performance Test Configuration | |
Processor | Intel Core 2 Duo X6800 (Dual-core 2.93GHz, 4MB Unified Cache) |
RAM | 2x1GB Corsair Dominator PC2-8888 (DDR2-1111) |
Hard Drive(s) | Hitachi 250GB SATA2 enabled (16MB Buffer) |
Video Card | MSI NX8600GTS (fanless) - All Standard Tests |
Intel TAT | Version 2.05.2006.0427 |
CoreTemp | Version 0.95 |
Video Drivers | NVIDIA 163.71 |
CPU Cooling | Noctua NH-U12P Arctic Cooling Alpine 7 (with PWM) Arctic Cooling Freezer Pro 7 ZEROtherm Nirvana NV 120 Cooler Master Hyper 212 OCZ Vendetta Scythe Kama Cross Swiftech H2O-120 Compact Corsair Nautilus 500 Thermalright Ultima-90 ZEROtherm BTF90 Xigmatek AIO (AIO-S800P) Evercool Silver Knight Enzotech Ultra-X 3RSystem iCEAGE Thermaltake Big Typhoon VX Thermaltake MaxOrb Scythe Andy Samurai Master Cooler Master Gemini II Noctua NH-U12F Asus Silent Square Pro Scythe Ninja Plus Rev. B OCZ Vindicator Thermalright Ultra 120 Extreme Thermalright Ultra 120 Scythe Infinity Zalman CNS9700 Zalman CNS9500 Cooler Master Hyper 6+ Vigor Monsoon II Lite Thermalright MST-9775 Scythe Katana Tuniq Tower 120 Intel Stock HSF for X6800 |
Power Supply | Corsair HX620W |
Motherboards | Asus P5K Deluxe (Intel P35) |
Operating System | Windows XP Professional SP2 |
BIOS | Asus AMI 0501 (06/26/2007) |
We run all cooling tests with the components mounted in our standard mid-tower case. The idle and stress temperature tests are run with the case closed and standing as it would in most home setups. Room temperature is measured before beginning the cooler tests and is maintained at 21C +/-1C (68F to 72F) for all testing.
For consistency of test results, we use a standard premium silver-colored thermal compound. In our experience, the thermal compound used makes little to no difference in cooling test results. This is particularly true now that processors ship with a large manufacturer-installed heatspreader. Our current test procedure uses this standard high-quality silver-colored thermal paste for all cooler reviews.
For comparison, we first tested the stock Intel air-cooler at standard X6800 speeds and measured the CPU temperature at idle. We then stress the CPU by running continuous loops of the Far Cry River demo. We repeat the same tests at the highest stable overclock we could achieve with the stock cooler. "Stable" in this case is the ability to handle our Far Cry looping for at least 30 minutes without crashing.
The same benchmarks are then run on the review cooler(s) at stock speed, 3.33GHz (10x333) at stock voltage, highest stock cooler OC speed (3.73GHz), and the highest OC that could be achieved in the same setup with the cooler being tested. This allows measurement of the cooling efficiency of the test unit compared to stock and the improvement in overclocking capabilities, if any, from using the test cooler.
We compare results with a representative sample of air- and water-cooling results measured with CoreTemp. TAT provides a similar core measurement, but test results with CoreTemp are more consistent over a wide range of test conditions than the results reported by TAT. We retested previously reviewed coolers with CoreTemp under idle and load conditions. In benchmarks where the new test bed makes no apparent difference, like maximum overclock, we include results for all coolers tested since beginning cooling reviews in early 2007.
Noise Levels
In addition to cooling efficiency and overclocking abilities, users shopping for CPU cooling solutions may also be interested in the noise levels of the cooling devices they are considering. We measure noise levels with the case on its side using a C.E.M. DT-8850 Sound Level meter. This meter allows accurate sound level measurements from 35b dB to 130 dB with a resolution of 0.1 dB and an accuracy of 1.5 dB. This is sufficient for our needs in these tests, as measurement starts at the level of a relatively quiet room. Our own test room, with all computers and fans turned off, has a room noise level that has been reduced slightly to 35.0 dB(A) compared to the previous 36.4 dB(A). With the new test bed, the system noise at idle is 36.5 dB(A) at 24" and 37.8 dB(A) at 6". This is better than our previous system noise floor of 38.3 dB(A) at 24". The noise reduction at the 6" distance is dramatically lower than the previous test bed floor of 47 dB(A).
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Xpl1c1t - Friday, March 21, 2008 - link
http://www.delta.com.tw/product/cp/dcfans/dcfans_m...">http://www.delta.com.tw/product/cp/dcfans/dcfans_m...It would be interesting to see this benched with a high quality oldschool delta fan. I think you might be surprised about the number of people who are still interested in seeing the results of a voluminously high cfm fan... apart from their criticisms...
poohbear - Friday, March 21, 2008 - link
dude, deltas are a thing of the past, nobody will tolerate a helicopter 1m away from them for a few mhz more, not w/ near silent 120mm fans around.bigboxes - Sunday, March 23, 2008 - link
LOL, truth.KainAT - Friday, March 21, 2008 - link
I already did that when doing Noctua Review.What I mean, is that as the autor says, Noctua fans working on TRUE are the best but Noctua already impressed me out by far going well on results.
Now, Im keeping TRUE with 2 fans. It was not difficult to addapt. You can put one clip in one direction and the other to the other direction.
The, just put 2X-NF-P12 fans and tight them by zip ties and all the work is done. Then, you will have the ultimate performance air cooling with very low noises.
I love this kit.
The main part from noctua this time, are the fans for sure. The cooler is very good of course, compared to the top with others but still cant beat Thermalright.
takumsawsherman - Friday, March 21, 2008 - link
I think we would all be interested in that result.PCTC2 - Friday, March 21, 2008 - link
Now all that needs to be done is put two of these Noctua fans on a TRUE in Anandtech's test and see how well it performs...poohbear - Thursday, March 20, 2008 - link
thanks for this awesome review! love to see high end cooler reviews! i gotta get me one of those noctua NF-P12 fans to use on a TRUE. i'll skip their heatsink cause u need 2 fans for best performance, but for ultra silence and best overclocking i dont think u can do any better than a noctua NF-P12 combined w/ a TRUE. gotta love progress and technology!trexpesto - Thursday, March 20, 2008 - link
They Tight!Jedi2155 - Thursday, March 20, 2008 - link
The "vortex control notches" remind me of the of same design in the newest jet aircraft....so you really are getting bleeding edge technology ;).Notches!!!!
http://www.dailyaviator.com/2006-07-pages/images/0...">http://www.dailyaviator.com/2006-07-pages/images/0...
stevemedes - Thursday, March 20, 2008 - link
Now if only they made it in something other than pink...