Just wanted to like this semi recent blog post to this community. Hopefully you’ll find the GPU information relevant for your future deployments.
The next phase of VDI evolution is upon us - check out the blog below, some of the things you will hear about are VDI evolution, the importance of Windows 7 replacing Windows XP, and the fundamental need of GPU in the next generation of Virtual Desktops.
http://blogs.cisco.com/datacenter/vdi-2-0-is-knocking-at-the-door-when-will-you-answer/