1. Microsoft Remote FX (Windows 2008R2, Windows Multipoint Server 2011 etc.) give to the remote users rich multimedia. Rich multimedia means that users can use Windows Aero and for e.g. watch HD video. Each user will use approximately 320 MB video memory. To take advantage of it, however, your WMS station needs to be running RDP version 7.1, which means your client, needs to be running Windows 7 SP1, Windows ThinPC, or Windows 7 Embedded. Only AMD FirePro and NVidia Quadro/Tesla officially supported. You can’t give to the station exclusive control of video card. 3D applications work with a significant loss of performance. Some application will not work. You will see the error like: “This application can’t work in remote desktop session”.
2. PCoIP protocol is used by zero clients. Zero clients can be software (VMware only) or hardware. Hardware client have Teradici chip inside. I am using twelve Fujitsu Zero Client DZ22-2 at work. http://www.fujitsu.com/fts/products/computing/pc/zero-clients/advanced/DZ22-2/index.html this is really great device, no VGA/DVI, even no power cable (using PoE). Users see the monitor with Ethernet cable, keyboard and mouse. Each user have own VM in our datacenter. With Parallels Workstation Extreme or Citrix HDX 3D Professional Graphics, or VMware View you can assign video card exclusively to VM (if you have VT-d compatible hardware). Unfortunately only AMD FirePro and NVidia Quadro officially supported.