Be quiet! Pure Rock CPU cooler review: Be Quiet budget cooler

Be quiet! Pure Rock CPU cooler review: Be Quiet budget cooler

German Be quiet! introduced late last year a new CPU cooler with a friendly price tag. Thanks to an average price of around € 33 is the new Be quiet! Pure Rock just below the price of the popular Cooler Master Hyper 412S, which we in our last comparison test yet proclaimed the best cooler in this price. Can Be quiet! match this performance?

Pure Rock is a tower cooler according to the principle. The overall cooler weighs 647 grams and is 15.6 cm high and 12.1 cm wide. In the aluminum heatsink with copper base plate are four 6mm heatpipes processed. The heat pipes 48 keep the fins of the cooler together. Although the cooler is not as expensive Be quiet! models is painted black, the finish on the top is excellent.

We find a Be quiet for the cooler! 120mm Silent Wings fan with PWM connection that works up to 1500 rpm. The fan works with a standard plain bearing. The fan should do the brand honor according to the manufacturer.

The cooler is suitable for all current sockets, including Intel Socket 1150/1155/1156, Intel Socket 2011 (v3), AMD Socket FM2 (+) and AMD Socket AM3 (+). According Be quiet! the cooler is validated to process smoothly to 150W heat. For a high-end Socket 2011 CPU does not remove, but for a Socket 1150 copy is more than sufficient.

The prize is as stated an average of € 33, though you can buy all the cooler for less than € 26. The price is written as a few dollars less than the Cooler Master Hyper 412S, but also a few euro back above the Gelid Tranquilo Rev. 2.

We have tested the CPU cooler in the same way as in our last major CPU coolers comparison test.

We use real CPUs, but professional CPU simulators that we can make exactly generate a fixed amount of heat. The test rig is readjusted in 2014 and fully calibrated and also we have compared tests from 2013 and earlier changes made in terms of thermal paste used and the number of times we have tested.

Be quiet! Pure Rock CPU cooler review: Be Quiet budget cooler

We use a two-CPU simulators. First there is a Socket 1155 chip, which is modeled on the thermal properties of Intel’s Ivy Bridge processors. Admittedly, this is now a generation ago, but since Ivy Bridge in size and TDP’s is almost identical to Haswell, you may conclude that when cooler X in our Socket 1155 tests do better than cooler Y, that Socket 1150 Haswell CPUs will also apply. At the Socket 1155 platform, we do a test with 65W, 95W and 125W load. 65W and 95W, the TDP of the standard Ivy Bridge CPUs, also roughly comparable to Haswell. The 125W test is equivalent to a slightly overclocked CPU.

The Socket 2011 CPU simulator is modeled after Sandy Bridge-E. Again, not the latest generation, but Ivy Bridge E and Haswell-E, there is nothing in area and TDP’s almost nothing changed. Again, we do two tests: 130W and 160W. The first is the TDP of the fastest 6-core CPU, the 160W test simulates a slight over-clock.

All the tests we carried out with both the fans present in the coolers running at full speed (12V voltage) and low speed (7V voltage). Also the sound graphs applies: green is high speed, red is low speed. The temperature is measured with the CPU simulators integrated professional T-type temperature sensors. All the test results we normalize to 20 ° C ambient temperature. Furthermore, we test all CPU coolers at least twice, on two different days, where we assembly also conducted four times (twice per socket). If we have a difference between the two tests of measurement more than 1 ° C, then, we perform a third test, and the different results removed. All the charts and on the site to find test results are the average of at least two tests where the results differ so very limited.

Where we previously made use of standard, no-name cheap thermal paste, we are using this new test exclusive use Gelid GC-Supreme thermal paste. Not only does this thermal paste for better results, the no-name thermal grease caused too much variation. We also have standardized for this test the amount of thermal paste used: about 30 mg in the Socket 1155- and 35 mg in Socket 2011 simulations.

The noise of the CPU coolers we tested in our soundproof box with a professional Brüel & Kjær 2238 sound level meter. Also, these assays, we carry out on high (12V) and low (7V) speed. The measurements we do 10 centimeters away. That makes the results which were higher than the estimates of the producers (who do so generally at 1 meter). Our soundproof box is not only too small to measure at 1 meter distance, the shorter distance also makes it possible to more accurately measure, in that the differences in the absolute sense are increased.

T the end of the article you will find a chart with efficiency scores we calculated for Socket 1155 Socket 2011 95W and 130W. These efficiency scores are a measure of the combination of good cooling with low noise. We calculate the score by the temperature and noise (both to be lower = better) by another and then invert to get a higher number = better. Finally, we normalize the scores so that the best cooler gets 100 points. Granted, it’s juggling with numbers and science have given to make the units sound pressure and temperature of course nothing to do with each other and they are not in the same scale. However, the efficiency scores do provide a good picture of the overall performance of the coolers.

Be quiet! Pure Rock CPU cooler review: Be Quiet budget cooler

130W at high speed (12V) is measured 41.3 ° C, which is better than the Cooler Master Hyper 412S. At low speed the cooler performs again similar to the Mugen 4 PCGH. 160W at low speed, resulting in 51.9 ° C. Be quiet! makes the claim that the cooler is suitable for 150W so true.

Pure Rock: noise

At the highest speed (12V) we measured 43 dB (A), which is an excellent result. Both we write more often, everything below 30 dB (A) measured at 10 inches at normal listening distance inaudibly quiet. Everything below 40 dB (A) is whisper quiet. At the highest rotational speed, the Be quiet! just above the whisper quiet border, most coolers in the price segment are much noisier.

On low speed, we measured 27 dB (A) and that is simply inaudible silent. Granted, other coolers are quieter, but whether a cooler now produces 24 dB (A) or 27 dB (A), you will not hear a difference. Be quiet! its name so proud.

Pure Rock: Conclusion

Pure Rock puts great cooling performance down, is very quiet and therefore has excellent efficiency scores. But competition in the segment where Be quiet! The cooler has been introduced is fierce. For a dollar or three more you buy the Cooler Master Hyper 412S and for a dollar or less the four Gelid Tranquilo Rev. 2, both coolers in our last comparison test in the cheaper price segments as best emerged. Click here for a comparison table with the Be Quiet, Cooler Master and Gelid coolers.

The Be Quiet in all tests better than the Gelid Tranquilo Rev. 2: the noise both at high and at low speed slightly lower and temperatures are slightly lower. Or: invest a little more also brings better performance. We compare the Pure Rock with the Cooler Master Hyper 412S, we see that Be quiet! provides better cooling performance; average the results are about 2 degrees lower than Cooler Master. On the other hand, the Hyper 412S both at high and at low speed of rotation also clear yet what is quieter. The efficiency scores of the Hyper 412S thus remain higher. Of the two, the Cooler Master judging from the performance the best choice, although the differences are small.

The Be quiet! Cooler however cheaper and in our opinion also some nicer finished, what the Pure Rock still makes an excellent choice.

Be quiet! Pure Rock CPU cooler review: Be Quiet budget cooler updated: March 26, 2015 author: John Malkovich