[LAU] Intel graphics chipsets and realtime

I'm getting ready to buy a Sony VAIO VGN-NW330F/S laptop with an Intel GMA 4500MHD graphics chipset. I know many people have reported that the closed nVidia driver has at times been hell on realtime kernels. Is the Xorg driver for this recent Intel graphics chipset known to be a problem in any similar way to what has been seen with the nVidia driver? I have heard that Intel's recent integrated graphics chipsets are starting to have better graphics performance than before back when they were just for a functional display and not much more, but also I'd like it to behave with audio too. Or any thoughs on recent Sony laptops for Linux in general? -- + Brent A. Busby + "We've all heard that a million monkeys + UNIX Systems Admin + banging on a million typewriters will + University of Chicago + eventually reproduce the entire works of + Physical Sciences Div. + Shakespeare. Now, thanks to the Internet, + James Franck Institute + we know this is not true." -Robert Wilensky