To test the thermal performance of the Fractal Design Arc Midi R2 we loaded our test system for 15 minutes using Prime95 and Furmark and recorded the maximum temperatures reached using CPUID Hardware Monitor. We then restarted the system and left it for 15 minutes before recording idle temperatures.
Room temperature was maintained at 20 degrees C for the duration of our tests.
Here we can see that the case offers good thermal performance, both at stock settings and when overclocked.