Most reports present the new GK106 GPU as having 960 CUDA cores active, and the marketing material along with the official card box packaging say the same thing we reported here. We have always said that the GK104 is too expensive to power the GTX 660Ti video card.
The way things stand right now, Nvidia’s GTX680, GTX690 and GTX670 video cards are in high demand and TSMC has problems due to not having enough 28nm manufacturing capacity.
In this situation, we’re pretty sure Nvidia’s GK106 is at least supposed to take care of the GTX660Ti video cards and we’re betting on the fact that the GPU actually has more than 960 CUDA cores inside while, for the moment, only 960 are active for the GTX660 GeForce cards.
Later, if the GK106 indeed has 1152 CUDA processors inside and Nvidia gathers up enough fully functional GK106 GPUs, we might start seeing GTX 660 Ti video cards powered by the aforementioned chip.
Until then, here are the benchmarks we’ve managed to gather up on the new GTX 660 and the GTX 650.