Question about Processing Power

I was reading the specs of the MBA and see that the top-of-the-line Air has a processor rated at 2.13 Ghz with 6MB of L2 cache. My current MBP has nearly identical processor specs, only .3 difference at 2.4 Ghz with a 3MB L2 cache. I realize that the SSD will of course make a big difference in speed. However, in terms of pure processor performance, will there be much difference between these two computers? Are there any reasons the Air's processor would be slower?
Thanks!

I had a new 1.83ghz MB Air for 4 days until the hardware failed. I'm got a full refund and I'm about to place a new order. During that time, I can say that doing Internet, email, Open Office, Microsoft Office, GIMP, etc., it felt faster than any Mac I've ever owned.
Also, a few months ago I put one of the really fast Other World Computing SSD's (with the Sandforce controller) in a mid-2007 MacBook that has a 2.16 Core2Duo processor and the REALLY SLOW Intel 950 integrated graphics. Doing "regular stuff" like that described above, this MacBook was way faster than my wife's 2.4ghz Core2Duo iMac with separate graphics processor. This MacBook boots in about 13 seconds. Microsoft Word cold boots for the first time after booting the machine in about 4 seconds. Safari cold boots in 2 seconds. Firefox cold boots in 3 seconds. Web pages load far faster because of the slight lag that normally occurs when a new web page is written to the disk cache. That lag doesn't exist with a fast SSD.
My point is that as long as you are not doing "pure" processor intensive tasks like encoding video or ripping audio CD's, the new MacBook Airs "feel" so much faster than their clock speeds would suggest.
As I said above, I'm waiting to re-order another 13" MBA. The wait is killing me. They are sooooooooooo nice.

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