Ok, first off, I don't use Intel anymore so I'm a little rusty with their stuff (AMD all the way baby!...er sorry). Are they both the same socket type? If one is 478 and the other is LAG 775, then you need to use the one that matches the socket type of your motherboard. And I would go with the Celeron because, well, it's newer, is nearly a GHz faster, and the bus speed is a bit faster too (533 MHz comapred to the older Pentium's 400 MHz).
|