The Open-Source Linux Graphics Card Showdown
With the ioquake3-based Reaction game, which does offer up some better visuals than some of the id Tech 3 Linux games, the i7-3770K graphics delivered the highest performance and came well ahead of the tested Radeon/GeForce GPUs.
This also meant that the Intel Core i7 3770K dominated over the competition for performance-per-Watt on this Ubuntu 12.04 Linux host.