The latest Inno3D leak confirms previous rumors about Nvidia separating gaming GPUs and mining GPU production. However, Inno3D's mining card is powered by a Pascal-based chip, so the rumored Turing chips based on Volta might not be released this spring, after all. The P102-100 cards seem to be twice as efficient compared to stock GTX 1080 models.
https://www.notebookcheck.net/Nvidia-s-specialized-P102-100-cryptomining-cards-leaked-by-Inno3D.289076.0.html