With newly developed fans, a streamlined cooling fin design, and offset direct-touch heatpipes that distribute heat more efficiently, the Freezer 34 delivers robust cooling for high-end processors with up to 18 cores. During internal testing, at a normalized 28db(A) noise level, the Freezer 34 models achieved results up to 4° C cooler than their predecessor series. Problem - AMD Ryzen 5 3600 was hitting 95C (max operating temp) and throttling while running handbrake batches. (Dangerous temp and throttling performance in attempt to not burn itself up) The build quality of the cooler is really purely function oriented. The endings of the heatpipes at the top of the fin bundle are not covered in any way and the manufacturer’s logo is subtly embossed into the upper fin of the heatsink. Mounting of the fan is performed by means of clips, which are inserted into small holes through the bundle of fins. Therefore, there is no bending or abrasion of the edges of the fins when installing the fan, but the clips are unfortunately quite soft and easily deformed. Here I would appreciate the use of better quality metal that would hold its shape better.

The only issue I found with the CR1U is that the front fan conflicts with my tall RAM module, so I had to offset the height of the front fan by mounting it about 1.5cm higher (which looked weird and probably affected cooling performance).

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The Freezer 34 CO differs from the Freezer 34 only by the addition of a high-precision and extremely durable dual ball bearing, which was specially developed for continuous operation.

To conclude, I have used Arctic Freezer air coolers before and I thought the AF-A30 was a good air cooler which I used on my old AM3+/FX8350 rig, but this AF34ESD is in a league of it's own, as my modified version can take down big boy, dual heatsink air coolers. Honestly, AF have done an amazing job with this one. I am going to keep this air cooler due to the amazing cooling performance AND it also has a 10 years warranty. Something else to consider in this formula as well, and that is the noise coming from the fans when accomplishing thermal improvement. To gain a degree, usually sound levels have to climb, or a larger fan is used while maintaining similar values. However, Somehow, ARCTIC was able to do both at once, lower the temperature, and lower the noise levels. The AF34-esport duo comes with two bionix fans (67.5cfm each, so total 135cfm). However, out of curiosity I decided to forego the bionix fans and instead opted to use my spare Noctua NF12 industrial fans (3k-rpm and 110cfm each so total of 220cfm). While many may balk at the single-degree performance gains over the predecessor, it is more about what coolers it is directly competing with. While the thermal results may look bad on the chart as they tend to fall to the bottom, but when you look deeper and see the Freezer 34 eSports DUO competing with AIOs at a third the cost, it changes one's perspective. Step 6. Use my pc as normal. See idle and gaming temps. Tings get interesting!. In this warm weather, the single heatsink AF34ESD gives the same cooling performance as my Cryorig R1 Ultimate (dual heatsink) air cooler at idle (38c to 43c). During 4K gaming, this AF34ESD actually beats my CR1U by circa 3c and my 5800X does not go above 46c. My Noctua NF12 fans are powerful and together produce 220cfm but on the downside they can get a bit noisy, but IMO the cooling performance versus audio levels is a good trade off.

Cooler and fan specifications

The Freezer 34 coolers come with all the perks of ARCTIC’s high static pressure P-fans: an extended shelf life, a wide RPM range, lower power consumption, high quality bearings and less vibration. Plus, when the PWM signal falls below 5%, the passive 0 dB mode is activated.