notebook with i7 2630QM or 2670QM processors for editing and grading?

[Nicole B]

For editing and grading work (real time, as much as possible)

laptop with:

Intel Core i7-2630QM @ 2.00GHz
with 7200RPM
or Intel Core i7-2670QM @ 2.20GHz
with 5400RPM hard disk?

Same or similar price.

I cannot trade the internal disk without losing the manufacturer warranty.
I'll be using only the internal disk for programs, using USB 3.0 external drives for footage.

http://ark.intel.com/compare/53469,52219

Intel Core i7-2630QM @ 2.00GHz
Max Turbo Frequency 2.9 GHz
benchmark 6338

Intel Core i7-2670QM @ 2.20GHz
Max Turbo Frequency 3.1 GHz
benchmark 6730

Is this 6.2% of difference any significant?