I was thinking about upgrading my 4x GTX Titan’s (2688 core) to 4x GTX Titan X for rendering with Iray, until I saw these benchmarks on TomsHardware Germany.
http://www.tomshardware.de/geforce-quadro-workstation-grafikkarte-gpu,testberichte-241759-3.html
The benchmark’s for Iray do not make...