AMD has this week released a statement in response to the growing concern that the new AMD Radeon RX 480 graphics card violates PCI-Express power specification and is overdrawing power via its single 6-pin PCIe power connector and the PCI-Express slot.
The combined power usage of the AMD Radeon RX 480 graphics card should be 150W however in testing it has been found to draw well over that power limit and is now causing concern amongst users.
AMD explains more about their current course of action :
As you know, we continuously tune our GPUs in order to maximize their performance within their given power envelopes and the speed of the memory interface, which in this case is an unprecedented 8 Gbps for GDDR5. Recently, we identified select scenarios where the tuning of some RX 480 boards was not optimal. Fortunately, we can adjust the GPU’s tuning via software in order to resolve this issue. We are already testing a driver that implements a fix, and we will provide an update to the community on our progress on Tuesday (July 5, 2016).
Expect more to be announced by AMD tomorrow and as always we will keep you up-to-date with any developments as when they are revealed.