
Originally Posted by
agd5f
Kepler is an incremental change from Fermi. SI is a completely new architecture (not just the shaders, but also the displays, memory controller, etc.) so there is a lot more work involved. Not only did we have to write a lot of new code, we had to get approvals to release all of the information on the new hardware which is a lot more than normally needs to be reviewed for an incremental change. If SI had been just an incremental change from NI the code probably would have been out at launch time or even before.