NVIDIA GeForce GTX 1080 On Linux: OpenGL, OpenCL, Vulkan Performance
When comparing the maximum single-precision FLOPS, the GTX 1080 beat the TITAN X by 35%!
The final SHOC test was of the texture read bandwidth. For this final OpenCL test today, the GTX 1080 beat the GTX TITAN X / GTX 980 Ti by 48%.
For some quick Dota 2 Vulkan numbers I did after the fact with a sub-set of GPUs, the GTX 1080 is faster than the TITAN X / GTX 980 Ti for Vulkan at 4K by about 18%.