NVIDIA has added a second GeForce 8800 GTS graphics card to its lineup. Just like the original version launched last November, the new model has 96 stream processors running at 1.2GHz, a 500MHz core, GDDR3 memory clocked at 1.6GHz, and a 320-bit memory bus. The difference, the memory capacity has been halved to 320MB and the RSP starts at $299, over $100's lower than the 640MB model.
Source: The Tech Report