We have some amazing news to share. Mathieu from E-Cycles has created a Bforartists 2 version of his improved version of the Cycles renderer.
E-Cycles 2020 is based on Bforartists 2 0.9.0, and is up to 2.5x faster than Blender OptiX. It also offers viewport denoising for GTX 9xx, 1xxx and RTX cards. You can choose between the standard(CUDA) or standard + RTX(OptiX) version.
The E-Cycles version of Bforartists 2 can be found here. It is no free addon though. The price is at 149 Euro: gumroad.com/l/E-Cycles-Bforartists