Is Nvidia toying with AMD when it comes to GPU performance?

[HoloDust]

Intel - I was dead serious in my previous post.

Next Xeon Phi will deliver 3TFLOPS of DP peak performance, 14-16 GFLOPS/W - Maxwell will have 8-16GFLOPS/W.
I think they will eventually target streaming gaming once it switches to casting/tracing - from everything I've read I was under impression that working with Xeon Phi is way easier than with GPGPUs, and if they have similar performance I can see why they might be obvious choice.