The AMD R9 390X is a rebadged power hungry (350W+) 290X. The 390X has a slightly increased GPU clock speed, a significantly increased memory speed and a higher minimum VRAM of 8GB but it shares the same core GPU hardware. Looking at the overclocked performance differences between the older 290X and the 390X shows that the two cards are approximately the same, which comes as no surprise considering that the 390X is actually just a factory overclocked 290X. Smart shoppers obviously won't be happy to pay AMD a premium of around $100 simply for overclocking a two year old 290X. That said the 390X does offer stellar performance, particularly at 4K resolutions and if prices drop significantly it could become a strong contender. We only have one MSI sample benchmark for the 390X so far so we will revisit this GPU when we have a better sample of all the available cards. ^{[Jun '15 GPUPro]}

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