R9 270x vs GTX 760 ~ GPU-Z Screenshot

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I've marked the difference. Why R9 270x has no "boost" section but there is "shaders" and that too grayed out? I know CUDA and Physx are Nvidia terms, isn't open CL an AMD term? PCI-e is backward compatible, that's ok..
 


Both cards are great, but look at the more important stuff. The GTX 760 has higher clock, higher memory, more texture fillrate, and is just better overall. The R9 270x however supports mantle and is great for gaming as well.