AMD Tbird 1.333 w/256MB PC133 and a 32MB AGP TNT2. KDE lags a lot more than Windows, like if I have a window maximized and I minimize it, I can notice some lag. Things like that. Those definitely should not lag with my specs if there was any hardware acceleration. I run it at 1152x864, same as my Windows desktop which I often run at 1280x1024 without any lag.
-RSI