New! E-Cycles 2020 2.90 builds are already available with very fast viewport rendering, AO and Clay kernels, NVLink support to stack memory of multiple GPUs, plus dithered sobol coming soon to OptiX for even cleaner renders.
E-Cycles is the fastest photorealistic renderer for Blender. You can get up to 2.5x faster path tracing out of the box. E-Cycles is as easy to install as unpacking a zip and is 100% compatible with Blender/Cycles. Get it now and save both money and a huge amount of time. Using the fast profile, the RTX version is even up to 41x faster than the OptiX version of Cycles!