NVIDIA's GeForce GTX460 caused quite the stir in the market. It was very competitively priced, performance was explosive and stock was everywhere. SLI performance was great too, which meant great bang-for-buck SLI could be had.
NVIDIA is ready to sequel this card up with the GTX560 which will fight a very bloody fight with AMD's popular HD6950 which was just released last week. The GTX560 will still be fabricated using TMSC's 40nm process and will be designed as the cheaper alternative to NVIDIA's GTX570 and GTX580 GPU's, all without drastically reducing performance.
There has been a GPU-z screenshot making it's way around, which shows the GTX560 including 384 stream processors, 32 ROPs and a 256-bit memory interface f filled out with 1GB of GDDR5 memory.
Core speeds are said to be 820MHz, with stream processors at 1,640MHz and the GDDR5 set at 1GHz (4GHz effective). These specs should result in a decent 128GB/sec of overall bandwidth. Other juicy details are that the GTX560 is based off of the GF104 core, but uses the full 384 stream processors, compared to the 336 found on the GTX460.