I'm new to this forum and this technology as well.
I spent two days on "playing" with the suite and it's really powerful. I'm doing some comparison chart to help me make an idea how much it would cost me an infrastructure to do the transcoding + mix + record of various "WebRTC Conference rooms".
I noticed that the project is split in the hardware accelerated solution (on Centos) and the CPU only (on Ubuntu).
I started with the CPU only project examples and made some tests. Next step was to rent an amazon instance with GPU (g2 with E5 Xeon + Nvidia GRID K520) to install the media server studio and afterwards the Intel Collaboration Suite on that machine but realized it would never worked because it need one of these processors:
You're right about E3/E5. Regarding E3-1285L, GPU acceleration with Intel Media Server Studio will work fine on it. Currently we do not provide the comparison chart which we will release in the future.
Any further question regarding GPU virtualization, please go to https://software.intel.com/en-us/forums/intel-media-sdk/.