When NVIDIA took the wraps off its family of 28nm Kepler GPUs, it promised some mobile chips designed for Ultrabooks were soon to follow. Two and a half months later, we still haven't seen any laptops running the 600M series, save for the Acer Aspire M5, which isn't even on sale yet. Finally, though, the company's giving us a bit more: in advance of Computex, a computer-centric trade show about to be overrun by Ultrabooks, NVIDIA just spilled details on the GeForce GTX 680M. As the top-tier offering in the mobile Kepler lineup, it packs a 720MHz engine clock, 1,344 CUDA cores and a 256-bit memory bus powering up to 4GB of GDDR5 RAM.
Engadget, NVIDIA details top-tier GeForce GTX 680M Kepler GPU for Ultrabooks, other laptops