Well, XP is totally different than Win98, win98 runs on the VxD module, and XP doesn't. XP is based on NT tech, win98 is not. WindowsXP is a lot more efficient than 98 too.
Like AMD, and Pentium, Pentium has superior memory management, but AMD can pump out more power at lower clocks. So there are a TON of variables involved with making a sleek machine.
You have a TON of ram! :P I wish I had that much.... I only have 256!
