The MX200 has a 64-bit memory bus and 6ns SDR memory. That makes it's memory bus as slow as the TNT2M64, and HALF the speed of the original TNT2. In fact, when I overclocked both my MX200 and TNT2 to the max, the TNT2 performed better. And the TNT2 was 2 or 3 years older!
<font color=blue>Watts mean squat if you don't have quality!</font color=blue>