What is GPU rendering like on GeForce GTX 980/970 with Octane Render, Iray, Vray RT?

[RamonNavarro]

I know these cards are still pretty new, but has anyone done GPU performance tests with GeForce GTX 980/970 how does it compare to the 780Ti and Titan cards with Octane Render, Iray or Vray RT, are there any gains, has anyone been having any issues?

 

[ty1er]

I just came here to post the same question. I'm very interested in Iray performance.

I found it kinda strange the none of the reviews of the GTX 980/970 had done any benchmarking with 3dsmax/iray.

 

[ty1er]

The only benchmarks I found are at the migenius site.

http://www.migenius.com/products/nvidia-iray/iray-benchmarks-2014-5