you obviously have not kept up with things
this is the same design as the 4000 cards, which WORK very well with furmark and OCCT, they get higher FPS than any nvidia card, but its due to 100% of their potential being used. since no game can use every shader perfectly, there is no game that comes close to these. the 4870x2 broke 350W when running under furmark, and is rated for only 270W TDP.
right now there is NO review showing throttling under any game. until one is shown, try not to imagine anything you believe to be facts.
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