Picking 800MHz FSB over 667 when memory supports 667?

Hi,

I have a choice between:
Intel® Core™ 2 Duo Processor T5800 (2.0 GHz, 667 MHz FSB, 2 MB L2 cache)

and
Intel® Core™ 2 Duo Processor T8100 (2.10 GHz, 800 MHz FSB, 3 MB L2 cache)

but to work with the following memory:
2048MB 667MHz Dual Channel DDR2 SDRAM [2x1024]

Since memory supports only 667MHz, is there sense in taking 800 MHz FSB processor?

I know other components use FSB too, but will I see any noticeable difference in performance if I pick 800 MHz FSB processor over 667 MHz one?

Thanks

I see.
That makes sense.
Thanks for the great reply!