At this year's CeBIT the most controversial and most debated new hardware was NVIDIA's Quad-SLI, which was awarded "best product of CES" earlier this year. We had the chance to put two identical retail 7900 GX2 QuadSLI and X1900 XTX CrossFire systems right next to each other and evaluate them. One of the surprises was that often one 7900GX2 alone performed better than the Quad SLI pair at low resolutions.