NVIDIA is planning to release four new GeForce 600 series graphics cards in August; the GeForce GT 640 with GDDR4, the GeForce GT 650 Ti, GeForce GTX 660 and GeForce GTX 660 Ti. Full details at Videocardz.
GeForce GTS 650 Ti
Card will purportedly feature five streaming multiprocessors, which gives 960 CUDA cores in total. This model will likely not be equipped with the memory higher than 1.5 GB, not to mention 192-bit interface. This model should be available for around $150, but this is only the estimation.
NVIDIA refreshing GeForce GT 640
NVIDIA is also preparing a new version of GT 640, which is reported to feature GDDR5 memory. There is currently a GDDR3 version available, but it’s obviously not very fast. Card might cost a little more, since it will deliver higher memory bandwidth with some additional frames per second in few games. But still, this is not a gaming card.