I have two of these machines. One is a quad-core laptop, and the other is a dual-core E-350 server.<p>In both cases, the driver provided by AMD was horrific. The drivers that came with LinuxMint and Ubuntu (not the non-free drivers, the default ones) were fantastic and very fast.<p>I am very happy and run both machines on dual 24" monitors @ 1920x1200 and they scream.