Stefan Mileschin

A quick stroll through our previous article about how the GeForce Kepler family of next-generation GPUs is laid out, would tell you that GeForce Kepler 104 (GK104), is going to be NVIDIA's answer to AMD's Tahiti. GK104 will be a high-performance (≠ high-end) GPU by NVIDIA that will have many of the features that were reserved for its previous high-end GPUs (such as a 384-bit wide GDDR5 memory interface), but will not be NVIDIA's most powerful GPU in the series. The throne will be kept empty for GK100, which will comply with NVIDIA's "go all in" design ideology for high-end GPUs.

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

http://www.techpowerup.com/156709/Ge...-Compiled.html