Nvidia's GTX 1080 Ti's specifications have been leaked, showcasing a GPU with 12GB of GDDR5 memory and 768 more CUDA cores than the GTX 1080.
The Nvidia GTX 1080 Ti is said to be made using Nvidia's GP102 GPU core design, which means that it is based on the same GPU as the GTX Titan Pascal.
Nvidia has made two significant downgrades with the GTX 1080 Ti from the Titan Pascal, changing the GDDR5X memory to slower GDDR5 and taking away 4 SM units from the GPU. This will give the GTX 1080Ti a total of 3328 CUDA cores, which is a 768 more CUDA cores than the GTX 1080 and 256 fewer GPU cores than the GTX Titan Pascal.
The change to GDDR5 memory will give the GTX 1080 Ti 384GB/s of memory bandwidth, which is a significant reduction in bandwidth when compared to the GTX Titan Pascal, which has 480GB/s of bandwidth.
Even with GDDR5 memory, the GTX 1080 Ti will still have significantly more memory bandwidth than Nvidia's GTX 1080.
This additional memory bandwidth will greatly benefit the GTX 1080Ti when running at higher resolutions and framerates, which will be handy when DisplayPort 1.3 120Hz 4K displays hit the market.
At this time it is unknown when Nvidia plans to release their GTX 1080 Ti onto the market, though we expect Nvidia to wait until AMD has a high-end competitor to their GTX 1080 before they release a new flagship consumer GPU.