Kepler is the successor of the Fermi architecture which uses 28nm process technology and triple the dual-precision floatinng point performance of Fermi hitting up to 6 dp GFlops.



Nvidia says there may be delay in production by 2 months, though they are  trying hard to get the 28nm technology out in production as soon as possible. The Maxwell architecture is scheduled in 1013-1014 which is expecting 16 dp GFlops.