Hello, can someone tell me why the V7900 isn't faster in performance compared to the W5000? The V7900 not only heats up to around 75-80c when playing games, but the performance in games runs worse. W5000 no problem gaming, card barely reaches 60c when gaming. But the V7900 specs are way way better over the W5000. I don't get it. I'm buying a W7000 4GB soon though, just curious about the v7900 vs w5000.