AMD’s 300 series GPUs have not been well received. After months of speculation and rumours it turns out that the 390X and 390 are indeed re-badged GPUs. They’re internally called Grenada GPUs, but that name is academic at best because they actually feature Hawaii cores as seen on the Radeon R9 290X and the R9 290.
There are many reasons why AMD chose to do this, which are of little to no importance to us. Suffice it to say we are only interested in what this decision means for the end-user and its effect on the games we play.