We also subjected our review device to a combined FurMark and Prime95 stress test that we ran for at least an hour to see how the system managed its performance in extreme conditions. Interestingly, the FX705DY performed slightly differently when running on battery than on mains power. The APU operates at between 3.3 and 3.5 GHz for a few minutes before lowering back to between 2.7 and 2.9 GHz in both scenarios. However, the processor repeatedly accelerated to beyond 3 GHz when running on mains power but did not replicate this behaviour on battery power. The system also throttled the GPU to between 250 and 350 MHz on battery but maintained its peak clock speed when running on mains power.