First we have this message on forums and official annoncement:
Fermi-based GPUs are no longer supported starting with release 396. These GPUs will continue to be supported through the release 390 legacy branch, which will receive critical bug fixes and updates for compatibility with new Linux kernels and X server versions through the end of 2022.
See http://www.nvidia.com/object/IO_32667.html for a list of Fermi-based GPUs.
But then we have the latest Linux driver announcement here: NVIDIA DRIVERS Linux x64 (AMD64/EM64T) Display Driver
which has the following chips among the supported products section:
GeForce 700 Series:
GeForce GTX 780 Ti, GeForce GTX 780, GeForce GTX 770, GeForce GTX 760, GeForce GTX 760 Ti (OEM), GeForce GTX 750 Ti, GeForce GTX 750, GeForce GTX 745, GeForce GT 740, GeForce GT 730, GeForce GT 720, GeForce GT 710
GeForce 600 Series:
GeForce GTX 690, GeForce GTX 680, GeForce GTX 670, GeForce GTX 660 Ti, GeForce GTX 660, GeForce GTX 650 Ti BOOST, GeForce GTX 650 Ti, GeForce GTX 650, GeForce GTX 645, GeForce GT 640, GeForce GT 635, GeForce GT 630
So is Fermi under legacy support or not? Is GT 730 supported by new driver or not. Since it is on both lists. In first announcement it says that last driver that will support it is 3.90, but in the 460.80 driver page it clearly says that latest driver supports it.