Asus Radeon RX 580 Strix Gaming Top OC 8GB Overclocking

We were unable to obtain a supported version of Asus GPU Tweak II prior to launch, but AMD's own Radeon WattMan software had everything we needed to overclock the card. We began by increasing the power limit to 150 percent and pushing the voltage from 1,150mV to 1,200mV (the maximum allowed) for the highest clock states.

After this, we were able to add 70MHz to the boost clock, taking us to 1,481MHz; 1.5GHz was just out of reach, but it might be possible on the very best samples. This is a five percent overclock relative to the out-of-box Asus speeds, 11 percent over the RX 580's reference boost clock, and 17 percent faster than the original RX 480 boost clock. Clearly, you're able to push the Polaris silicon further than ever before now, but it's still some way off the speeds Nvidia is capable of with Pascal.

The memory was successfully overclocked to 2.25GHz for an effective speed of 9Gbps. This boost of 12.5 percent was the highest permitted by WattMan and required no additional voltage to reach.