Cooler Master Hyper 612 Apex review: raising the bar for silent performance

I first heard that Cooler Master’s Hyper 612 air cooler had impressive performance from users in China, but I had no idea quite how much it would impress me. Despite its medium size, it provides performance competitive with larger dual-tower air coolers. Cooler Master claims its performance is enabled by new superconducting heatpipe. And while normally I would ignore such claims as marketing fluff, the Hyper 612 Apex has the performance to back it up!

Will the Hyper 612 Apex make our list of the best CPU coolers? It certainly has the performance to warrant consideration. But the price of $79 is higher than most of the air-cooled competition, especially from tough competitors like Thermalight. Let’s take a look at the specifications and features of the cooler, then we’ll go over thermal performance with both Intel and AMD CPUs, as well as noise levels.

Cooler specifications

Packing and included contents

The packaging features Cooler Master’s dark purple and pastel design, showcasing the product in the center. Inside, the packaging is separated into two separate parts.

Included in the box are the following:

• Single-tower heatsink with pre-installed fans
• Cryofuse thermal paste
• Mounting accessories for modern AMD & Intel platforms
• Installation manual
• PWM splitter cord

Features of Cooler Master’s Hyper 612 Apex

▶️ Heatsink Design

At first glance, you might think this is a thick single tower cooler – but look again!

If you take off the top cover, it becomes apparent that the heatsink isn’t as large as it might appear – almost half of the unit’s thickness is from the fans that come with it.

▶️ High-quality Cryofuse

Cooler Master includes its Cryofuse thermal compound with the cooler, which offers good performance only a couple of degrees away from the best pastes we’ve tested – but as you’ll see in our benchmarks below, it really doesn’t an edge from its thermal paste!

▶️ Sturdy metal backplate

For users of Intel platforms, a sturdy metal backplate is included that won’t bend under pressure.

▶️ Six superconducting copper heatpipes

The design of this unit’s heatpipes are interesting. Cooler Master has mentioned that the company was using machine learning to improve its heatpipes in the past, and this cooler appears to be the first to utilize these advances.

Looking at the cross-section of the Cooler Master image above, you can see that the heatpipes have been staggered to evenly spread heat through the aluminum fins of the tower. Cooler Master makes some interesting claims about the heatpipes themselves. I’ve included one of the marketing slides below.

And here’s a bottom photo of the sample we were sent for testing, showing how the heatpipes are weaved for maximum heat dissipation.

▶️ Complete RAM Compatibility, no matter the size of DDR5

Unlike liquid coolers, which generally don’t interfere with memory DIMMs on a motherboard, many air coolers overhang the DDR5 or DDR4 slots, creating compatibility concerns. This is not an issue for Cooler Master’s Hyper 612 Apex, which does not overhang them in any manner, ensuring compatibility no matter how short or tall your RAM sticks are.

Real world testing configuration – Intel LGA1700 and AMD AM5 platform

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

Many will test CPU coolers outside of a case, on an open test bench. Open benches have lowered ambient temperatures, which makes weak coolers appear stronger than they 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 the real-world conditions where a CPU cooler is typically used.

My previous reviews have tested Intel’s latest platform, using the Core Ultra 9 285K Arrow Lake CPU. But we’re retiring this from our testing suite. Between BIOS changes and Windows updates, Arrow Lake’s thermal characteristics have changed in some scenarios, rendering much of our previous testing data useless.

With today’s review, we’re also testing AMD’s Ryzen 9 9950X3D. This is a beast of a CPU, providing the best gaming and multithreaded performance on the market. It can prove quite challenging thermally when PBO is enabled for overclocking.

AM5 and 1851 installation

The installation of this cooler is simple for both Intel and AMD CPUs.

1. You’ll first need to apply the included backplate if you’re using an Intel CPU. AMD users will need to remove the default mounting mechanism.

2. Next, you’ll need to install the standoffs against the mounting holes.

3. Take the support bars and place them on the mounting standoffs, and secure them with a screwdriver.

4. Apply the included thermal paste to your CPU. If you have any questions on how to do this properly, please refer to our handy guide on how to apply thermal paste.

5. Mount the heatsink on top of the CPU, using a screwdriver to secure the screws on each side of the tower.

6. Slide each fan into the appropriate spot against the heatsink

7. Place the cover on top, and then use the included PWM splitter cable to connect the fans to your motherboard.