Originally posted by: Arkaign
Yep, you're screwed because you already changed the hardware, and didn't benchmark it first.
The best 'do-it-all' synthetic benchmark suite for XP is SiSoft Sandra. Google it and get it, record all your numbers before your next changes, then re-bench after the changes. Big caveats : Sandra is near-useless when trying to compare different systems, but provides a pretty consistent way to benchmark the same system with changes. Also, it doesn't include a very thorough 3d benchmark system, so grab a 3dmark product for that purpose, using the same technique.