13-Way Radeon AMDGPU-PRO 17.50 vs. NVIDIA Linux OpenCL Compute Comparison
With the cl-mem OpenCL memory benchmarks, the RX Vega GPUs with HBM2 memory are able to shine.
And one of the most interesting OpenCL tests right now... Ethereum Ethminer. The RX Vega 64 matches with the GTX 1080 Ti while the RX Vega 56 isn't too far behind.
NVIDIA GPUs were leading by a narrow margin with the Darktable RAW photography software where all Radeon GPUs tested were slower than a GTX 1070.