Originally posted by: Roguestar
The graphics card is always your best bet for a quick performance leap if you're upgrading. Go for a better GPU first, better CPU second. Especially if he's playing at a higher resolution.
:thumbsup: If you're going to be gaming on a 22" widescreen at 1680x1050, you'll be MUCH better off getting the GTS.
If you have the money for a forklift upgrade, sure, go for it. But, at that resolution, with AA/AF, especially in graphically-intense games, a faster CPU won't offer much of a benefit at all.
Here is Oblivion at 1600x1200 (a tad bit more stressful of a resolution than your 16x10), showing how much better a GTS is over a 7950gt, which is better than your 7800gt. But someone can claim that the test isn't fair since they are using a C2D with all the cards, which is much faster than your CPU.
Okay,
here is FEAR with an UNDERclocked C2D at 1.6ghz getting the exact same FPS as a C2D at 3.3ghz at 16x12 resolution (again, as close as I can find to your 16x10).
It's true-- your CPU is on the weaker side of things, but I can't imagine it being much weaker than a C2D at 1.6ghz. And that chip performs the same as an x6800 that costs a WHOLE lot more.
Now, granted, these benchmarks are for GPU-heavy games (shader-heavy, first-person shooters, etc). Things change a little bit when it comes to online games, RTS games, etc. But, at your soon-to-be playing resolution, that 7800gt has GOT to go. Your CPU will be fine until the next-gen games start showing up and demanding some dual-core action.