The blame for this "Issue" (Non issue) is being directed to the 8gbps 8GB VRAM Modules which as many tests suggest are wired to take power from the PCIe x16 slot. The 4GB version not only have half the VRAM power consumption of the power hungry GDDR5 modules, but also runs 1Gbps lower, we could go into how much power each module use and how much that is decreased in half by using half the modules plus lowering the speed to 7Gbps on the 4GB version instead of 8Gbps on the 8GB version.
There are no 4GB reviews as of now, but from 79W you're looking at a way lower average on the 4GB 480, I'd say around 60W to 70W.
Originally Posted by Alastair
Why is the testing being done at +50% power limit.
Because controversy, that's why.
The RX 480 is built in such a way that takes as much power there is available, raising the power limit to 50% will make the card actually consume 50% more power. Many have tried overclocking and have found no change in performance, like OC3D, until they raise the power limit bottleneck which makes the card use way more power than it should but actually increasing performance.Edited by Dargonplay - 7/3/16 at 11:11am