A photo of NVIDIA’s upcoming performance-segment GPU based on the upcoming Pascal architecture, the GP104, has been leaked to the web. For starters we can see that the GP104 retains the traditional GPU layout that we are used to seeing with the GPU die sitting on a fiberglass substrate package and having memory chips surround it. This confirms that NVIDIA will be reserving HBM2 for the high-end GP100 silicon.
Taking a look here we can see that the GP104 measures 15.35 mm x 19.18 mm, and the transistor count could be anywhere from 7.4-7.9 billion. The shot shows 8 gigabit GDDR5 memory chips from Samsung that tick at 8 GHz (GDDR5 effective). If the memory bus is 256-bit, then you are looking at a memory bandwidth of 256 GB/s. The CUDA core count of this chip is expected to be closer to 2560.