New intel santa rosa processors and ram!!!?

Question

New laptops with the santa rosa processor have a CPU FSB 800MHz. But they usually come with either 1gb or 2gb of ram at 667MHz.

If i wanted to add a 2gb 800MHz ram stick into the laptop. Would it do anything, mixing the 667 and 800MHz.

Answer 1

If you mix 667Mhz and 800Mhz together, they will all run at the slowest speed which is 667. There will be a slight performance gain if you completely replace the 667 with 800, but nothing major.