Apparently launching in Q4 2020, the proposed specifications for the RTX 3080 Ti would make it significantly more powerful than any current consumer desktop GPU. The RTX 3080, RTX 3070 and RTX 3060 do not seem half bad either, though.
https://www.notebookcheck.net/NVIDIA-Ampere-GPUs-to-feature-up-to-8-192-CUDA-cores-256-RT-cores-1-024-tensor-cores-and-16-Gbps-VRAM-RTX-3080-Ti-to-arrive-before-RTX-3060.463302.0.html