NVIDIA's strongest SKUs in the market today is undoubtedly the GeForce 7900GT and 7600GT. We already saw what the GeForce 7600GT, both reference and higher clocked SKUs can do in our last round up. The performance difference, while present, is minimal. The use of a 128 bit memory bus restrains the card from getting enough bandwidth to really stretch its 12 pixel shader units to its maximum potential. So could a higher clocked GeForce 7900GT offer more punch than reference clocked GeForce 7900GT? If it can, would it be significant or even 'just enough'? To answer these questions, we test four cards from different manufacturers: the ASUS EN7900GT TOP, Gigabyte GeForce 7900GT TurboForce (GV-NX79T256DP-RH), Leadtek PX7900GT Extreme and the reference clocked MSI NX7900GT (VT2D256E) to the test.

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