Cooler Master Hyper 612S review

A CPU air cooler described as "silent" – but is it efficient?

Cooler Master Hyper 612S
Carefully built to ATX specifications, the CPU cooler was easy to install

TechRadar Verdict

An efficient CPU air cooler that's ear-friendly

Pros

  • +

    Efficient silent cooling

  • +

    Wide socket support

  • +

    Good price

Cons

  • -

    Hefty size

  • -

    Cheaper alternatives exist

Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

Like a child stuffed full of fizzy drink and sweets by a malevolent anti-Jamie Oliver, Cooler Master is going hyper, at least with its latest Hyper 612S CPU air coolers.

As far as air coolers go, the Hyper 612S certainly ticks all of our must-have boxes, with six 6mm heatpipes running through a solid copper base and up the chunky 140mm tall aluminium-fanned heatsink array.

Cooler Master could be trying to cover its own back by describing the Hyper 612S as a silent cooling solution, but then why not?

It ships with a 1,300rpm 120mm fan that produces a mere 22dBA, but a supplied fan limiter reduces the revs to just 900rpm and a near-silent 16.1dBA.

For those seeking more cooling performance, the Hyper 612S does ship with a second fan bracket, so it can be used in a dual-fan push-pull configuration too, helping Cooler Master potentially cover all bases with a reasonably-priced CPU air cooler.

Latest in CPU
AMD Ryzen AI
New leak suggests AMD's working on an Arm-based processor to rival Qualcomm's Snapdragon X series
AMD Ryzen 9950X3D chip next to its packaging on a pink table
Asus' AI Cache Boost promises to "pump up" your AMD Ryzen 9000 processor's AI performance
An AMD Ryzen processor slotted into a motherboard
Future AMD-powered gaming handhelds and notebooks could miss out on a key feature – and it might be a deal breaker for gamers
John Loeffler holding the Ryzen 7 7800X3D
Great news! The best gaming CPU ever made is finally available for its original launch price again
The Ryzen AI Max+ 395 could power the latest generation of powerful mini PCs
The AMD Ryzen AI Max+ 395 dominates as the "most powerful" APU on the market, but its competition is questionable
Intel Lunar Lake concept
Intel's Panther Lake processors won't arrive until Q1 2026 - corroborates previous delay rumors despite former Intel CEO's promise of 2025 launch
Latest in Reviews
Product shots for the Xiaomi Poco X7 Ultra review
I spent a month testing the Xiaomi Poco F7 Ultra, a top-end mid-ranger that masquerades as a flagship
The Kiwi design K4 Boost Battery strap being worn by Hamish
I test VR headsets for a living, and this affordable headstrap is the first Meta Quest 3 accessory you should buy
Both Kiwi design G4 Pro Performance Controller Grips
I thought VR controller grips were pointless until this Meta Quest 3 accessory proved me wrong
The Kiwi design H4 Boost Halo Battery Strap
Want to upgrade your VR headset? Look no further than my new favorite Meta Quest 3 headstrap
WithSecure Elements EPP and EDR main image
I tested the WithSecure Elements EPP and EDR - read how I rated this Endpoint Protection for small business
The RIG M2 Streamstar.
I wanted to love the new RIG M2 Streamstar, but this pricey gaming microphone fails to deliver