Hello

I am about to buy a new AMD. Things I do mostly are gaming, such as Crysis etc. and Emulation ( working on getting a good build to emulate PS2 so I need a really good processor for the job) and I should also mention that I use Windows Vista
Which of these processors do you think would benefit me the most?
AMD Athlon 64 X2 6400+
http://www.tigerdirect.com/applicati...778&CatId=2328
or the
AMD Phenom X3 8650
http://www.tigerdirect.com/applicati...670&CatId=3681
Also I have a 2nd question. I currently have an AMD Athlon X2 5600+ would buying either of these show an improvement in performance that's worth close to $200?
Thanks in advance for any help :-D