Questions about various Intel graphics chipsets and their related drivers. Including: Intel HD Graphics, Iris Graphics and Graphics Media Accelerator.

Overview of released chipsets series

From Wikipedia's page about Intel graphics (very old and non-available products have been left out)

Requirements for running Unity

The Intel GMA 950 graphics solutions or better are currently recommended for running the Ubuntu Desktop.

Driver updates and documentation

The latest driver packages (be warned that these may cause instabilities), code and documentation can be found at the Intel Open Source Technology Center website.