3DCenter.org compiled a few specifications of the GK104 and GK100. They go like this:
GK104
640 to 768 CUDA cores 80 to 96 TMUs (depending on what the CUDA core count ends up being) 384-bit GDDR5 memory interface, 48 ROPs Built on the 28 nm TSMC process Products based on this will launch in the first quarter of 2012
GK100
1024 CUDA cores 128 TMUs 512-bit GDDR5 memory interface, 64 ROPs
NVIDIA GK104 and GK100 specification rumors
Posted on Tuesday, December 13 2011 @ 23:01 CET by Thomas De Maesschalck