It's been a long known "thing" that the new windows versions are measurably slower than even previous windows'es.
Its sad really that My machine scores nearly 2000 points extra on 3Dmark06 in a WinXP boot than it does in Win7.
Newer versions of windows don't really give a shit if your perfectly standard sound card works or not anymore or where your GPU juice goes - its FAAR FAR FAR more important that your title bar is transparent so you can barely tell one window from the other, that your mouse has shadows, and that EVERYTHING slides around and wooshes in and out like you just bounced a bag of spoiled weed
But that's the world we live in, Fluff & Front End are way more important than form and function anymore, It needs to sparkle and twinkle and whirrrrrl and whizz to hold the 20 second attention span of the new ADD Justin Beiber generation, just look at that cross-eyed inbred hill-billy 8 year old child's interface "Metro" for gods sake. ITS A COMPUTER NOT A FUNKING CELL PHONE!
Its as tho they just don't want us using computers at all anymore.
But that's off topic, so let's just not go there, I guess WELL DONE to Valve - I can see Linux definitely becoming a more and more viable OS for me as I am one of those lost forgotten cave people who actually USE A COMPUTER AND RUN PROGRAMS AND WORK WITH FILES, and that is simply not what the future of Windows is about anymore apparently.
The ONLY thing that has really kept me away from Linux is its overall terrible gaming support track record, but this article just proves what a rapidly evolving landscape that is, and clearly I need to start paying closer attention.