Temperatures

Temperatures are surprisingly low, lower than we expected from a single 120 mm radiator cooling two Hawaii GPUs. I did notice that temperatures in Furmark reach 68°C, which is higher but still comfortably low. I wish AMD had picked a quieter fan profile to reap in the watercooling solution's benefits.

Clock Profiles

Modern graphics cards have several clock profiles that are selected to balance power draw and performance requirements.

The following table lists the clock settings for important performance scenarios and the GPU voltage we measured. We performed the measurement on the pins of a coil or a capacitor near the GPU voltage regulator.