Brace yourselves, summer is coming. As it happens every summer, the sales of advanced cooling solutions tend to increase this time of the year. This year a little more than usual, as many enthusiasts likely found the perfect excuse for an upgrade in light of the new Windows 10 release. Rising temperatures are a concern for both the casual user, who usually is just psychologically stressed by the higher temperature readings, and the advanced enthusiast, whose overclocked system is now facing random stability issues. And of course there are those who are simply annoyed by the increasing noise of their current cooling solution and are in need of something less intrusive.

Liquid-based cooling solutions are becoming easier to install and AIO kits generally are hassle-free, yet they are still not favored by the majority of the users. Their space requirements, increased complexity and price hold most people to simple air-based cooling solutions. After all, most advanced users are not quite convinced about the performance of AIO coolers to begin with, with some even claiming that air-based solutions can be as good or even better.

We have not had a review of simple air-based cooling solutions in a while here in AnandTech. With a new advanced testing setup and equipment, it makes sense to begin with roundup reviews, which present multiple current solutions and create a healthy reference database. However, there are thousands of air-based cooling products available and almost every one of them is designed for a specific purpose and target group. We had to start from a single category, therefore we simply requested from a number of companies to ship us whichever product they consider their best. Nine companies answered our call, alphabetically listed in the table below.

Product Fans Fan Speed
(RPM)
Current Retail Pricing
be quiet! Dark Rock Pro 3 1 × 135mm
1 × 120mm
1400
1700
$86.50
Cryorig R1 Ultimate 2 × 140mm 700-1300 $196**
Logisys (DeepCool)
GamerStorm Assassin
1 × 140mm
1 × 120mm
700-1400
1200
$56.90
Noctua NH-D15 2 × 140mm 300-1500 $93
Phanteks PH-TC14PE 2 × 140mm 700-1200 $80
Raijintek Tisis 2 × 140mm 600-1000 64€ (≈$72*)
Reeven Okeanos RC-1402 1 × 140mm
1 × 120mm
300-1700
300-1800
60€ (≈$66*)
SilentiumPC Grandis XE1236 2 × 120mm 500-1500 £34.90 (≈$45*)
Thermalright Macho Zero - - $65 (no fan)

*As these coolers are not available in the US at the time of the review, these are the average retail prices in USD, excluding taxes.

**The Cryorig R1 Ultimate currently is available only through a foreign store registered in Amazon.com that ships from Korea. The current retail price is extremely bloated, far above the MSRP.

The Be Quiet! Dark Rock Pro 3
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  • Pissedoffyouth - Monday, July 6, 2015 - link

    I wonder how a D15 or similar, with the fans removed, would work with a 45w or 65w APU to make a passively cooled PC.
  • ImSpartacus - Monday, July 6, 2015 - link

    That's a really interesting consideration.
  • MrSpadge - Monday, July 6, 2015 - link

    This will depend greatly on your case airflow. And if you only run short load bursts (browsing etc.) which can easily be absorbed by the heatsink heat capacity or continous loads (games, work), where the exchange of heat from the heatsink to the outside world limits cooling.
  • iamezza - Tuesday, July 7, 2015 - link

    With good fan control you could set the fan to switch off below a certain temp. So it could be silent 99% of the time but with a low rpm fan there if needed.
  • Mumrik - Tuesday, July 7, 2015 - link

    You'd probably still need some level of airflow.

    I've never had a fan on my Scythe Ninja that cools an i5-2500k. I think that's a 95W TDP.

    It's close to the single 12cm rear exhaust though.
  • Beany2013 - Wednesday, July 8, 2015 - link

    I did similar with my old SLACR Q6600 95w CPU - Noctua D14 (I think) with a fan on a controller. At stock speeds (with a pair of Noctua case fans on it) it had just enough airflow to run without the CPU fan running at all. When I wanted performance, I could overclock from 2.4ghz to 3.something ghz (I can't remember but I think they went to 3.6ghz?) and just turn the CPU fan up to 'normal' speeds and it'd never get above 70deg and it was still a very quiet machine - HDD noise was far more noticeable than fan noise.

    I really must get some decent fans for my current rig - a slightly long-in-the-tooth A8-3870 mit 16gb RAM that is still running the OEM cooler. Yes, I've got bored of overclocking. I still have that noctua kit kicking around somewhere, really must dig it out and see if I can get an adapter for it. I'm sure that'll tide me over till we see if Zen is worth a light...?
  • Essayjedii - Friday, July 10, 2015 - link

    I have made a post about D15 in here <a href="http://www.dumblittleman.com/2015/04/14-problems-f... Hope ou find it interesting and useful.
  • Essayjedii - Friday, July 10, 2015 - link

    I have made a post about D15 in here http://www.dumblittleman.com/2015/04/14-problems-f...
    Hope ou find it interesting and useful.
  • Haravikk - Sunday, July 12, 2015 - link

    My current machine is an i7-4790T (45W, 2.7ghz, quad-core, hyper-threaded, 3.9ghz turbo with HD4600 graphics) in an Akasa Euler case, which means the case acts as a heat-sink. As I type this I'm transcoding video on all eight hardware threads with a total load of about 760% (where 800% is max), at a CPU temperature of 85ºC and a clock speed of 2.97ghz.

    Of course that's for a passive case rather than a heat-sink on its own, but as long as you have somewhere for that heat to go it definitely seems doable. For example if you used an open-air case then ought to just rise out between the heatsink fins so airflow may not be required at all.

    Basically keeping the case from becoming a big box of hot air is crucial; the Euler case with my processor (which is a slightly higher TDP than the 35W that the case recommends) gets pretty hot internally, which isn't great for internal drives. I ended up having to swap an mSATA SSD for a 2.5" one, as the mSATA drive just got too hot, while the 2.5" one has a bigger surface area and a metal body. Even so, I squeezed a tiny 40mm fan inside just to help pull hot air out on warmer days.

    So ehm… yeah, possible, but you have to be sure you've considered where that heat is going to go before you attempt it. But as others have said; if your case has room then you should just put fans in there anyway and set them to switch off at lower temperatures; you can also use very slow, quiet fans so even if they do run they're silent.
  • Oxford Guy - Tuesday, July 14, 2015 - link

    Stick with a cooler like the NoFan models which are made specifically passive cooling. They will be much more effective.

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