Big Airflow – Fractal Epoch XL PC Case Review

Thermal Performance

Fractal Epoch XL Thermal Testing

Thermal performance is an essential factor for any PC case. Your system may look great from the outside, but all that is for nought if your PC has the internal temperature of an oven. Your PC case needs enough airflow for your components to remain cool under load and to prevent any form of thermal throttling. For our test, we used the following hardware, using fixed fan speeds (so that only the case and its fans can influence thermal performance).

Intel i9-9700K @4.8GHz at 1.2V
ASUS ROG Strix Z370-F Gaming @ 100% Current Capacity/ LL lvl16
Cooler Master Hyper 212 Black Edition @ 9V via Fan Speed Reducer
Nvidia GTX 980 Reference @ 60% Fixed Fan Speed
Corsair LP Vengeance LP (Grey) @ 3200MHz
Corsair MP500 M.2 NVMe SSD
Corsair RM550X Power Supply

The graph below showcases Delta temperatures with a controlled ambient temperature of 20 degrees Celsius.

1,000 RPM Fan Testing

When testing the Fractal Epoch XL, we added two Valkyrie 120mm fans to the case. These fans were at the top and rear of the chassis, creating an ideal airflow scenario for our system’s CPU cooler.

At 1,000 RPM fan speeds, the Fractal Epoch XL outperformed every other PC case we have tested, and its GPU thermals are solid. Clearly, this case includes 140mm Momentum 14 fans that can push a lot of air, and Fractal’s mesh designs are well-optimised. You need both to be great to get these kinds of results.

1,500 RPM Fan Testing

At 1500 RPM, we continue to see great results. CPU and GPU thermals remain excellent.

Max RPM Fan Testing

At our maximum fan RPMs, Fractal’s Epoch XL continues to deliver excellent results. CPU thermals remain second to none, and GPU thermals are decent. That said, cases with bottom-mounted fans have an edge when it comes to GPU thermals.

Mark Campbell

Mark Campbell

A Northern Irish father, husband, and techie that works to turn tea and coffee into articles when he isn’t painting his extensive minis collection or using things to make other things.

Follow Mark Campbell on Twitter
View more about me and my articles.

Uh-oh! It looks like you're using an ad blocker.

OC3D relies on ads to provide free content and sustain our operations. By white listing us on your ad blocker, you help support us and ensure we can continue offering valuable content without any cost to you. We only run our own hand picked ads from Industry brands like MSI, BeQuiet, Sapphire and PC-Specialist - meaning they are all relevent to the content you are reading.

We truly appreciate your understanding and support. Thank you for considering whitelisting OC3D