OctaneBench® is described as 'allows you to benchmark your GPU using OctaneRender. This provides a level playing field by making sure that everybody uses the same version and the same scenes and settings. Without these constraints, benchmark results can vary a lot'. There are more than 25 alternatives to OctaneBench® for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Sketchup. The best alternative is Adobe Dimension. It's not free, so if you're looking for a free alternative, you could try Cycles Renderer or LuxCoreRender. Other great apps like OctaneBench® are POV-Ray (Free, Open Source), Keyshot (Paid), V-Ray (Paid) and appleseed (Free, Open Source).
fryrender is the physically-based light simulator developed by RandomControl. It is a photo-realistic render engine where all the elements involved in the generation of the final image (materials, lights and cameras) are based on physically accurate models.
Arion is the hybrid-accelerated and physically-based light simulator developed by RandomControl. It inherits all our expertise in light simulation and makes it run on steroids, thanks to our very unique approach to massive CPU+GPU+LAN computation.
mental ray® is a rendering software which generates images of outstanding quality and unsurpassed realism. The software combines the physically correct simulation of the behavior of light with full programmability for the creation of any imaginable visual effect.