sorry i misposted, the 2620 is slower than the 2630 by about 50%.
The 2630qm is faster and cheaper in the configuration, so don't even bother with the 2620m. It's either a typo on their part, or a marketing gimmick.
The only reason I can think that you would get the 2620m is if the battery life is better which is possible, but there isn't a lot of information out about the 2nd gen SB cores yet, or if you're going to be gaming because then the 2620m would be faster because it's higher clocked, and in applications that only use 2 cores it would be faster.
It comes down to what you're looking for the laptop to do.
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