Phoronix has just posted a new article on the State of XGI Linux Display Drivers

Over the last couple of months, we've quite extensively
examined the latest Linux display drivers from both ATI and NVIDIA. We
have even published two articles about Linux NVIDIA overclocking with
both NVClock and CoolBits. Today, we will be continuing this never
ending driver coverage as we see just how well XGI Technology fares when
it comes to their Volari Linux display drivers as we attempt to run a
Volari V3XT and V8 under Linux.

The State of XGI Linux Display Drivers