Hi all merry x mas,

I am thinking of upgrading my graphics card, but i cant choose which one?

Which is better for online gaming the raedon 9700 pro or the gforce 4 ti600 platinum?

My pc spec is:
AMD 1800+
400 watt power supply,
512 DDr ram,
Creative audigy 5.1 platinum,
Bt Broadband,

I have visited many sites and most point towards ther raedon

Can anyone explain the difference betwwen the two?
Thanks in advance cheers!