Noctua NH-U12P: Top Performance AND Silence
by Wesley Fink on March 20, 2008 8:00 PM EST- Posted in
- Cases/Cooling/PSUs
Conclusion
Past test results with Noctua coolers taught us to respect Noctua's claims. Like Thermalright, Noctua has a track record of delivering what they promise. However, the two companies really come to cooling with different areas of expertise. Thermalright has a long history of top-performing coolers. Thermalright doesn't ship coolers with fans, so Thermalrights require top-performing fans to end up as top performers. You can also control noise by selecting a fan that exhibits ultra low noise. Fans than can provide good performance with low noise tend to shine on Thermalright heatsinks.
Noctua on the other hand has a sterling reputation for developing the lowest noise coolers around. Their fans are masters of low noise, with respectable performance that is always near the top but rarely challenging for first place performance. For this reason, we were a bit skeptical when Noctua claimed top performance with incredibly low published noise levels. Noctua is capable of some brilliant engineering so we did not dismiss the claim, but we really didn't expect to fully validate their claims in our testing.
We are happy to report that our skepticism was not justified in this case. Noctua really has produced a top-performing cooler with incredibly low noise in the NH-U12P. The combination of staggered Vortex Control notches, SC Drive, and SSO bearings in a nine-blade design does the trick as promised. Paired with the venerable and continually refined Noctua heatsink, performance of the stock Noctua NH-U12P mirrors the top Thermalright all the way to 3.91GHz. Noise remains below our system noise floor throughout the entire range of testing.
The Thermalright goes on to 3.94GHz with a single fan, indicating the design may be slightly more efficient. However, add a second NF-P12 to the Noctua and it also reaches 3.94GHZ and sets new records for cooling temperatures along the way. Even with two fans, noise remains below the noise floor - and you can reduce it even further with shunts if you choose. We saw no reason to do this as two fans at full speed were still as silent as we could measure in our system - with noise levels below a quiet suburban bedroom at night.
For those who don't care about overclocking, the Noctua NH-U12P is still a great choice. It cools as well as the best so far with one fan - at idle and under load at stock speeds. Add a second fan and the stock temperatures are all new records. We haven't tested a cooler that does a better job of cooling at stock speeds. However, the Noctua cooler with two fans at $90 is not cheap, and the Alpine coolers we recently tested do almost as well at about 1/6 the price. For most who won't overclock the Alpines are fine, but if you want the best stock air-cooling you can buy the Noctua NH-U12P with an extra NF-P12 fan is the ultimate.
These test results for the Noctua are truly impressive, but they do not dethrone the Thermalright Ultra-120 eXtreme - at least not yet. The superb component here is the Noctua NF-P12 fan, which is a brilliant piece of engineering. We doubt our Thermalright or any air-cooler will top the 3.94GHz that seems to be the limit of our test bed Core 2 Duo. However, we suspect the Thermalright combined with the NF-P12 could match or even exceed the results with the Noctua heatsink. Having said that the practical reality is it is not easy to mount two NF-P12 fans on a Thermalright, whereas the Noctua heatsink is designed for push-pull and even comes with the extra wires to make it easy.
There is no doubt the Noctua NH-U12P has joined the ranks of the best performing coolers ever tested at AnandTech. With two NF-12P fans in push-pull, it turns in the best cooling results at the highest overclocks we have ever seen. We can also recommend the Noctua NF-P12 fan for performance plus silence on the Thermalright. If you want a complete cooling kit balanced for performance with silence, the NH-U12P is an excellent choice.
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poohbear - Monday, March 24, 2008 - link
im going on previous cpus that overclocked upto 70%, currently the wolfdales that go from 2.6 to 4ghz are'nt a 50% overclock, but still bloody impressive. My opty 165 goes from 1.8-3.0ghz, which is a 66% overclock.:)Nihility - Friday, March 21, 2008 - link
I thought the F7P had terrible build quality, at least that's what I hear from the reviews on newegg.RamarC - Saturday, March 22, 2008 - link
many newegg reviewers are idiots.i've had two f7p's for the past 14 months. problems: zero; performance: fantastic. anything that can keep a pentium d 945 in the 50s under load and not sound like a f'n jet engine is fantastic in my book. and my e6600 @ 3ghz peaks in the low 40s with the fan spinning at only 800rpm.
JarredWalton - Sunday, March 23, 2008 - link
Yeah, we pretty much http://www.anandtech.com/casecoolingpsus/showdoc.a...">found the same thing in our review. No, you're not going to match the Thermalright Ultra-120 eXtreme, but then at 1/4 the cost you can't complain too much. The F7P is substantially better than retail HSF in noise levels and performance, at a cost of http://www.ewiz.com/detail.php?p=FAN-AC7PRO">$20 shipped.Syzygies - Friday, March 21, 2008 - link
I too have a Thermalright U120E push pull, using a pair of Scythe S-FLEX SFF21F fans, in an Antec P182 case decked out with other fans. I too used cable ties: One can fashion a pair of four-sided harnesses, using four cable ties each. Size them almost to fit, trimming so there's still a bit of plastic to pull on, then gingerly tighten a click at a time to snug, for a perfect fit.Anandtech has the best air cooling reviews, period, lending much-needed credibility to any comparisons with water cooling. In contrast, another site has a water cooling review that cools a 3.2 GHz Q6600 to 58 C to 62 C at full load, comparing favorably with a Zalman 9700. Those are exactly the numbers I'm getting with my U120E, and I'm getting nowhere on that forum pointing out how cooked the review looks.
For those of us trying to wring every advantage from air, we're unlikely to use an "average" case, and we're likely to consider lapping. Besided returning the U120E to the ring in push pull mode, those are my questions.
silhrt - Friday, March 21, 2008 - link
Back on the Noise Levels page, I noticed that at 6", 7 of them were at the same and at 24", 9 of them were at the same level. Rarely, if ever, are these tests with so many the same. ( not even .1 differenece ) So, this leads me to wonder if the method of testing is accurate.Is there any way to get a sensor that reads below 30? Maybe near 20?
Since its at the low end of the sensor, maybe its bottoming out?
Wesley Fink - Friday, March 21, 2008 - link
As clearly stated in the review those noise levels are the noise floor of the test system, which is equivalent to a suburban bedroon at night. Since we are running a varaiable speed low-noise power supply and fanless video card these levels represent the quietest power supply we could find that also realistically supports overclocking. The video card is fanless and zero noise.We don't test or try to measure even lower levels because that is not the way people actually run their systems. If you are interested in the noise level of a component in isolation with a power supply in another room there are other web sites that will provide you that information.
a09805 - Friday, March 21, 2008 - link
I would not blame the sensor.I guess the problem is a higher-than-desired ambient noise. There's evidently something else in the testing room that shouts in the background, and that covers the whisper of the fans. We need a more silent environment to compare noise from a fan or two. Also, we should measure noise at about 1m, that would be a typical real-world minimum distance.
For some serious thoughts and hints about silent computing visit www.silentpcreview.com.
woofersus - Friday, March 21, 2008 - link
So when are you going to slap that fan on a the big thermalright? Best fan meets best heatsink? Could be a match made in heaven even without push-pull..Wesley Fink - Friday, March 21, 2008 - link
You read our mind - or at least the hints in the Final Words :) We'll be doing it soon.