Cooler Master Nepton 240M AIO CPU Cooler Review


Benchmarking the Cooler Master Nepton 240M

In the benchmarks that will be run, we used an Intel 4770k clocked at 3.5GHz with Turbo Boost and the low power state enabled. Turbo Boost allows the 4770k to hit up to 3.9GHz right out of the box. Many of the previous tests we chose not to overclock beyond the turbo frequency in order to show you what your average user would see, but we did find the limits of this particular processor without going too extreme on the voltage and will start to include those results. The 4770k will be overclocked to a 4.3GHz turbo boost at 1.270 volts, which is over the stock 1.193v. To push this particular 4770k stably to 4.4GHz required well over 1.4 volts, which the performance gains of a 100MHz increase was not worth that huge bump in voltage. Also understand that every processor reacts differently to voltage adjustments, so some may run slightly cooler or hotter at this same overclock frequency.

To record temperatures, we used Core Temp, logged the temperatures for 15 minutes or while each program was active, and averaged all 4 cores.

Benchmark wise, we will be using several synthetic and real-world benchmarks to perform normal, heavy, and extreme load. The benchmarks that we’re going to use today include: Prime95, x264, 3DMark 2013 (Firestrike test only), Metro Last Light, and Sleeping Dogs. Prime95 will peg all four cores and eight threads to 100% with the In-Place Large FFT test, which will help us to understand exactly how hot this CPU can get with each cooler.

Ambient temperature during all testing was 74 degrees Fahrenheit.

I have reviewed several other liquid CPU coolers in the past and you will find them in the charts below for comparison purposes. I did not start overclocking the 4770k until after my Cooler Master Glacer 240L review, so not all coolers were tested under the increased stress of an overclock.

In the below graphs, you’ll find the Nepton 240M is in RED, while the Nepton 280L is in DARK BLUE.


Cooler Master Nepton 240M - Idle


Cooler Master Nepton 240M - Prime95


Cooler Master Nepton 240M - x264

3D Mark 2013

Cooler Master Nepton 240M - 3DMark2013

Metro Last Light

Cooler Master Nepton 240M - MetroLL

Sleeping Dogs

Cooler Master Nepton 240M - Sleeping Dogs

Overall Results: Cooler Master’s Nepton 240M was designed to be just as efficient as the 280L, but in a smaller and significantly quieter package. After running the results, we found that this cooler didn’t only meet our expectations, but it exceeded them! In several tests, the 240M was able to edge out its older sibling in this smaller package, which is fantastic. It appears that the higher load of Prime95 or x264 showed that the heat couldn’t dissipate fast enough, resulting in slightly higher temperatures. Compared to the competition, it performed extremely well, beating out its main target, the Corsair H100i nearly every time.