The ASUS ROG Phone II Review: Mobile Gaming First, Phone Second

GPU Performance

As always with the GPU testing we do here, how a device ends up in the results is pretty much equally impacted by the SoC microarchitecture and GPU itself as it is by other factors such as software thermal throttling configurations as well as the hardware design of the phone – whether it can properly dissipate the heat from the SoC to the body of the phone.

We’re testing the ROG Phone II both in the default mode as well as the X Mode to determine any differences.

In the graphics tests, the ROG Phone II is dominating and is clearly posting the highest performance among any smartphone out there when it comes to its sustained performance. The device is able to distinguish itself from the rest thanks to the increased GPU frequency of the Snapdragon 855+ SoC.

Furthermore, the phone doesn’t look like it throttles much at all on the GPU side of things, and the behaviour is similar to that of the OPPO Reno 10x and the OnePlus 7 Pro. Of course, this also comes at a cost of extremely high device temperatures again – the phone’s internal temperature sensor in ASUS’s own monitoring tools showcased temps of in excess of 55°C, and the phone would burn through one’s finger if held at the hottest spots.