: Targeted at large-scale IT infrastructure; supports up to 2 TB of RAM and 8 physical CPUs.
: Optimized for virtualization; allows unlimited virtual instances on one server.
: Specialized for hosting web applications and services via Internet Information Services (IIS) 7.5 . Technical Innovations in SP1
: Enhances the remote user experience by supporting 3D graphics and USB redirection for Remote Desktop Services. System Requirements
: Designed for small-to-medium businesses; supports up to 32 GB of RAM.