A Synopsis Of Linux Graphics Drivers
 

With all of our coverage at Phoronix of the different ATI and
NVIDIA graphics drivers, if you're new to Linux or just get caught off
guard by all of the different open and closed-source drivers, it can be
confusing to know which driver is right for you and your needs. At the
request of many readers, and the obvious need for a concise article
explaining the different solutions, we have written a synopsis of the
Linux graphics drivers currently available. This is really to let those
new to Linux know what choices are available for them and their graphics
card.

http://www.phoronix.com/vr.php?view=11396