Okay currently I am running an AMD Sempron 2800+
on a Gigabyte socket 754 board running 2 gigs of ddr
with a AGP Geforce 7300GT 512
I just found out that my Girlfriend got me an AMD Athlon 64 3400+ in the mail for my coming birthday (I guess all the complaining about my Neutered Athlon called a Sempron paid off

)
Anyhow does anybody have any idea what performance increase I can expect?
Currently my FPS with GWX 3.0 hovers around 21.
And also does having a dual or quad core have any benifits as I know that some sims (IL2) only run on one core.