A GPU-Z screenshot has appeared on Chiphell forums, showing the upcoming GTX 760M in Action. The GTX 760M is based on Nvidia’s 28nm GK106 core, but unlike the first three 7xx parts, it has 768 CUDA cores. The GT 750M, GT 745M and GT740M all feature 384 cores.
The GTX 760 is clocked at 628MHz and it features 2GB or GDDR5 memory, paired up with a 128-bit memory bus, which means it can deliver 64.1GB/s of bandwidth.
You can check out the gritty details here.