NZXT Kraken X61 CPU Cooler Review


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NZXT Kraken X61 CPU Cooler: Performance Test 1

Our first CPU Cooler Performance Test takes use of the included TIM and fans included with each CPU cooler. The NZXT Kraken X61 includes two fasn for a push setup and pre-applied thermal paste which can only used once. The purpose of this test is NOT to prove which cooler is better, but rather to give our readers an expectation of what to expect from each cooler using the stock fans and TIM.


NZXT FX V2 140mm Performance PWM Fan Specifications

Courtesy of NZXT.com

Dimensions 140 x 140 x 27 mm (W x H x D)
Fan Air Flow 42.4-106.1 CFM
Fan Air Pressure 0.36-1.97 mm-H2O
Fan Bearing ENB (Everflow Nano Bearing)
Fan Connector 4-Pin
Fan Control Pulse Width Modulation (PWM)
Fan Input Power 7.2 W
Fan Current 0.6 A
Fan Noise Level 20-37 dBA
Fan Speed 800~2000 R.P.M.
Fan Voltage 12 VDC

Test 1 Results


The NZXT FX V2 140 mm fans have a measured RPM rating from 800 to 2000, although being limited to the Asus AI suite, our Gryphon Z87 motherboard only managed a minimum of 1100 rpm. Last week, the NZXT Kraken X41 outperformed literally every other cooler in this test at it’s maximum RPM and the Kraken X61 followed by beating everything else again.


Raising the CPU core of our I5 4670k to 4.2 GHz requires increasing the core voltage to 1.175 V. In our overclocked test the NZXT Kraken X61 still stays at the bottom of the table, with only the loud TD02-E and TD03-E beating it.. These are quiet impressive numbers, specially as acoustically, the Kraken X61 is quieter than most coolers at the bottom of the table.


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  1. RealNeil

    second paragraph, “desner” should read, “denser”.

    1. Julian Duque

      Thanks for pointing this out.

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