While AMD is about to launch its Fiji XT-based Radeon R9 Fury X and the respin that will arrive as the Radeon R9 390X, it looks like NVIDIA is already playing around with its next-gen GPU: GP100. GP100 will reportedly rock between 4500 and 6000 CUDA cores, making it NVIDIA's biggest GPU yet.
Right now we have GM200, with the 'M' standing for Maxwell, so the GP100 and its 'P' standing for Pascal. Pascal is NVIDIA's next generation architecture, with the GPU being built on the 16nm process. Not only will Pascal be baked onto 16nm, but it will arrive with support for HBM2 memory, which should see memory bandwidth scaling up to an insane 1.2TB/sec or 1200GB/sec. Considering the GeForce GTX 980 Ti has 336GB/sec, the GTX 1080 Ti (or whatever NVIDIA calls it) could have up to 1.2TB/sec bandwidth, a near 400% increase in memory bandwidth alone.
The news is coming from a source on the Beyond3D forums who says that the 'big Pascal' chip (GP100) has been taped out on TSMC's 16nm process, with a 'target release' window of Q1 2016. We don't know if this is true or not, but I would be pretty sure that NVIDIA is playing around with Pascal right now. I've asked many of my NVIDIA sources about Pascal, 16nm and HBM2 and all I get back are smiles... we should be more excited about the next-gen GPU from NVIDIA than any other release from the company, ever.
16nm is going to really let NVIDIA stretch its legs, HBM2 is going to usher in the largest jump in memory bandwidth NVIDIA has ever had by 300-400% and the Pascal architecture - well, we don't even know what to expect from Pascal. Maxwell introduced many new technologies when it was revealed, but the performance and power consumption side of it was the best work NVIDIA has ever done, so I have very high hopes for Pascal.
We should also expect to see between 16GB and 32GB of HBM2-based VRAM to be offered on the new Pascal-based cards, where I'm sure NVIDIA will up the Titan X 2 (that's what I'm calling it for now) to 32GB from the 12GB of VRAM found on Titan X. I think we'll see the GP104 (the smaller chip) arrive as the GeForce GTX 1080, but I'm going to throw this rumor out there: the numbering system will change for this generation. I've just explained above how this is the most important release from NVIDIA ever, with 16nm, HBM2, new architecture and more - so start getting excited, folks!