I'm guessing amonst other things you will be getting a lower score because
- Slower RAM speed
- That P4 probably had HT
I wouldn't worry about it, benchmarks are really no indication of real world performance. If your computer does what you need, why worry.
__________________
You want a toe? I can get you a toe, believe me. There are ways, Dude
I don't want to talk about it
I don't want to hear no lip
Take your share don't shout about it
That's your lot remember you're a kid