The latest CPU cooler air cooler from Taiwanese manufacturer Montech PC is the NX600, a budget air cooler that incorporates six copper heatpipes to transfer heat from the CPU to the fin plates.

What sets the NX600 apart from the competition is the inclusion of two high-performance, thick E28 fans. And the price is right, at less than $30, which makes the purchase arguably worth it even if you’re only interested in the fans (and not the heatsink).

Let's take a look at the specifications and features of the cooler, then we’ll go over thermal and noise benchmarks so you can decide if the NX-600 deserves to make our list of the best CPU coolers.

Cooler specifications

Features of Montech’s NX600 air cooler

● Dual-tower heatsink with six heatpipes

Six copper heatpipes transfer heat from the CPU contact plate to the fins of the heatsink. The heatsink features serrated edges – an engineering choice which generally results in lower noise from turbulence as air enters and exits the fin stack. There are interlocking “zipper” tabs on the sides of the fins, which improve structural rigidity and prevent the plates from squishing together to ensure proper airflow.

● Dual 120mm E28 performance fans

There’s more to a cooler than just the heatsink. The included fans directly impact on noise levels and cooling performance. The E28 fans are especially powerful, as we discovered in our review of Cooler Master’s Hyper 212 3DHP – dropping temperatures by over 3 degrees C compared to the default fan included with the 3DHP air cooler!

● Color scheme options

The color scheme of the NX600 model included in this review is black, grey, and silver, which might appeal to users who prefer old-school designs. There’s also a white option, shown below. ARGB and non-ARGB fan options are available with both heatsink designs, for about $5 more.

The top covers of the heatsink are mainly decorative, and can be removed if you so desire – as shown in the picture below.

● RAM Clearance

Standard-height DDR5 sticks 40mm tall fit well under the NX600 with the E28 fans installed, but taller sticks won’t fit perfectly underneath. Our current CPU cooler test bench incorporates TeamGroup’s Sakura Rose T-Force Xtreem DDR5-7200 sticks, 48.8mm (1.92 inches) tall.

If you also use taller RAM DIMMs, you’ll have to raise the intake fan’s placement by a few millimeters for things to fit properly. This might result in slightly lower cooling performance in certain scenarios, particularly those where the fans’ speeds are limited to ensure lower noise levels.

● Packaging

The heatsink towers are protected by soft coverings and foam inserts, with the fans and accessories packaged in cardboard. Included in the package are the dual-tower heatsink, two high-performance E28 fans, mounting hardware for Intel and AMD platforms, fan clips, and a small tube of thermal paste.

● AM5 Installation

You’ll need to first remove the default AM4/5 retention mechanism and then place the mounting studs around the exposed screw holes.

The next step is to place the mounting bars on top of the studs, securing them with the included screws.

Then, apply Montech’s thermal paste. If you’re not sure how to do that, we have a hadny thermal paste application guide that covers the different methods you can use. Afterwards, place the heatsink tower against the CPU and mounting bars, and use a screwdriver to secure it.

Once the heatsink is secured, attach the high-performance E28 fans to the cooling tower with the included clips. Lastly, connect the PWM and (optional) ARGB cables of the fans to the corresponding headers of your motherboard.

Real-world testing configuration – AMD AM5 platform:

We’ve tested coolers with both the Ryzen 9950X3D and its non-V-Cache sibling, the 9950X. There are some differences in how the 9950X and 9950X3D CPUs are impacted by thermal events. While the heat output of the CCDs of AMD’s 9950X3D is relatively balanced, the 9950X I used has one CCD that runs much hotter than the other, with a difference of over 10 degrees Celsius in some scenarios, shown below.

We’ve since returned to using a 9950X3D for cooler testing, as it has a more balanced heat profile, and is almost certainly a more widely adopted CPU.

The benchmark results shared in these reviews may differ from others because I emphasize results that are comparable to real-world use. This means I generally test CPU coolers inside of a closed desktop case, which increases cooling difficulty compared to other testing methods.

Many reviewers test coolers on an open test benches, which have a combination of lesser airflow needs and lowered ambient temperatures. This results in making weak coolers appear stronger than they really are. Some publications have also used generic thermal plates to test cooling solutions. I reject both of these methods because they don’t accurately reflect real-world cooler conditions.

Our latest testing setup uses the FLOVA F50 computer case from Tryx.

This case features a unique “crossflow” fan that pulls air from the side, which the company claims is more effective than traditional intake fans. For air cooling tests, we’ve added a single Noctua NF-A12 G2 intake fan.

PBO Performance and maximum noise levels

We’re going to start this review’s benchmark section by focusing on a traditional maximum performance test, with the CPU cooler’s fans allowed to reach their fastest speeds, for the best cooling possible.

Turning on PBO allows AMD’s Ryzen 9 9950X3D to stretch its legs to an extent, and all air coolers I have tested with PBO enabled using MSI’s X870E Carbon Wifi motherboard reach the maximum CPU temperature of 95 degrees C (203 F) and thermally throttle to some extent.

Results from the liquid coolers we’ve recently tested aren’t shown above because they are able to keep AMD’s Ryzen 9 9950X3D under TJ Max – and as such, power consumption figures aren’t quite comparable.

Montech’s NX600 does fairly well in this test. While it is technically beaten by Sudokoo’s SK700V & DeepCool’s AK620 G2, it only falls behind by a few watts. This means benchmarks will basically be the same, as any scaling gained from raising power consumption to 251W (compared to 248W) would be so small as to be irrelevant.

To give a wider variety of comparison examples, I’ve included a chart of the same tests from our last AMD Ryzen 9 9950X3D cooling test bench. But keep in mind these results aren’t 100% comparable, due to a different case and fans being used. Our newest test bench used for this and other recent reviews incorporates a Tryx crossblade intake fan as well as a single Noctua NF-A12 G2 intake fan, which results in better air cooling performance.

Montech’s NX600 performs well, but a large part of that comes from the inclusion of its flagship E28 fans, which are a bit overpowered compared to the included dual-tower heatsink. As such, at full fan speeds, this cooler does not run at all quietly – with a measurement of 50dBA, it is the loudest air cooler I’ve ever tested.

200W thermal benchmarks

For the next thermal test, I leave the motherboard settings at their defaults, which results in a power limit of 200W when running Cinebench R23.

The result here was curious, as with a “stock” power profile, its thermal performance was not as strong as our previous test.

150W + GPU thermal results, noise levels

Our next test runs Cinebench on the CPU with a 150W power limit, while also running Furmark on MSI’s RTX 4070 Ti Super Ventus 3x OC. This causes the GPU to consume ~295W of power. This test is designed to emulate the thermals of games, which primarily stress the CPU and GPU.

Montech’s NX600 did particularly well with this combined CPU and GPU thermal test; the included E28 fans seemed especially effective in helping to push the GPU’s heat outside of the case.

But again, the cooling potential provided by the E28 fans comes at the cost of noise – with the NX600 averaging 44.6 dBA. Between our current (shown above) and former (shown below) testing setup, this result is the third-loudest we’ve seen from any air cooler on this test.

Noise-normalized testing

Most testing is performed with the cooler tied to the default fan curve of our MSI X870E Carbon motherboard, but some of y’all prefer to see tests when the noise levels of coolers are equalized. This is especially important to those of you who prefer silent computers. This next test has the CPU cooler noise-normalized to 38.9 dBA, with PBO enabled for the Ryzen 9 9950X3D CPU.

The results here were not impressive for the Montech. Perhaps the thermal transfer from the NX600’s CPU coldplate and copper heatpipes is not ideal, as performance should be better with these flagship E28 fans.

Another factor to consider when evaluating this benchmark is that my test bench utilizes DDR5 DIMMs that are 49mm tall – which requires lifting the front intake fan a few millimeters to fit. The particularly poor noise-normalized performance may be the result of reduced performance when the fans are set to lower noise levels and rotation speeds.

Karhu DDR5 RAM thermals testing!

Your CPU cooler does not operate in isolation. It has an impact on not just your CPU’s temperatures, but also the other components in your build, like your RAM and GPU. To that end, I’ve run the Karhu RAM stress test. This places a load of ~153W on the CPU and ensures system RAM (DDR5 in my case) is fully stable. In this type of scenario, most AIOs tend to produce worse results than air coolers.

The DDR5 temperature recordings from this test seem to be within expectations compared to other dual-tower air coolers, with Montech’s NX600 performing only 1.2 degrees C behind the best dual-tower air cooler in our setup.

Conclusion

Montech’s NX600 generally performs well, and has a very reasonable price of only $29.90, which makes purchasing this cooler worth it even if you’re “only” interested in the fans.

On the flipside, the included E28 fans seem overpowered compared to the heatsink, resulting in high noise levels during moderate to intensive workloads. If you’re looking for a quietly running system, you should consider alternatives like SAMA’s E360 air cooler instead.