Windows 8 on a 9 year old computer AMD (Athlon XP)

[froggyboy604]

http://www.youtube.com/watch?v=Efb9y9kyJ4Q

Specs:
AMD Athlon XP 2800+
1GB PC2100 RAM
Radeon 9600 128MB
120GB hard disk
Windows 8 Consumer Preview (build 8250) 32bit

Windows 8 seems to run pretty fast on a computer which is 9 years old, and only have 1 GB of RAM. I wonder how much faster will Windows 8 be if it has 2GB of RAM.