Radeon ProRender VS LuxRender

Cycles Renderer - Cycles is Blender’s ray-trace based production render engine and in development since 2011.

RenderMan - Advanced Technology from Pixar Animation Studios for Rendering VFX and Animation

Blender - Blender is the open source, cross platform suite of tools for 3D creation.

LuxCoreRender - LuxCoreRender is a physically based and unbiased rendering engine.

POV-Ray - What was then called STAR-Light, and later renamed to PV-Ray and ultimately POV-Ray, has therefore been on this planet for a whopping 9, 190 (or 11, 000) revolutions by now (plus another guesstimated 150 above it).

Octane Render - Octane Render is the world's first GPU based, un-biased, physically based renderer.