NVIDIA on Tuesday switched focus to its highest-end workstation cards with the unveiling of the Quadro FX 4800. The chipset is based on the same architecture as the GeForce GTX 260 and carries 192 programmable shader cores but is tuned for 3D modeling and other pro apps: it carries a full 1.5GB of memory for higher-detailed models and textures, supports 30-bit color output and allows 32X full-sce