VR Zone claims NVIDIA now has engineering samples of its GK107 "Kepler" GPU, this will be a low-end chip for notebooks. The GK107 chips may enter production in January 2012, but there's still no news about the high-end Kepler GPUs.
GK107 is set to feature in four mobile GeForce SKUs - N13P-LP, N13P-GS, N13P-GT and N13E-GE. If these codenames sound familiar, it is because they have previously appeared in a leaked 28nm mobile GPU line-up. GK107 features a 128-bit memory interface, and supports DDR3 and GDDR5 memory. The first three GK107 based SKUs (with a "P" suffix) will likely succeed the GeForce GT 500M series, and will presumably be branded GeForce GT 600M series. The top GK107 part, N13E-GE, may succeed GTX 560M and be part of the GTX 600M series, as denoted by the "E" suffix (Enthusiast). In addition, GK107 will also be part of mobile Quadro SKUs - N14P-Q1 and N14P-Q3.