Yes, the speed increase it will noticeable but the problem remains the videocard especially for the games. Could you tell us the rest of the components?
Do you intend to upgrade the videocard too?
AMD Athlon x2 4200+
4x512mb DDR PC3200 Ram
PNY 7600GS 512mb PCI-E Video Card
2x320GB IDE hard drives
Windows XP Media Center Edition
2x2GB Mushkin DDR2 Ram
EVGA 9800GT 512mb PCI-E
1TB WD Sata hard drive
Windows 7 Ultimate
Like I say I am on a budget and my PC is going out but I can't afford the newest of the new like i7. I know most of the components of my system are about a year old but that brings them into my price range.
Should I go ahead and build this system or wait another year. It seems like the technology that I have spec'd out is far enough along to make an upgrade from my old gateway reasonable.
2.2Ghz to 2.83Ghz isn't an accurate example, clock speed is only compared like that in the same product line. The C2Q architecture is faster than the old K8 architecture in your Athlon X2, a 2.83Ghz C2Q will out perform any Athlon X2 including the X2 6400 @3.2Ghz.
Also most new games are using 2+ cores now, not just 1 like they did back in 2006.
I do agree to wait on I5 if you can, even if you can't afford that, it'll rock the boat and cause price drops else where which should save you money.