Nvidia gtx 650m and gt 660m?

Hello, I've been looking for a new laptop and narrowed it down to these two:
MSI GE60: Newegg.com - MSI GE Series GE60 0NC-498US Notebook Intel Core i5 3230M(2.60GHz) 15.6" 8GB Memory DDR3 1600 750GB HDD 5400rpm DVD Super Multi NVIDIA GeForce GTX 650M
Newegg.com - MSI G Series GE60 0ND-666US Notebook Intel Core i7 3630QM(2.40GHz) 15.6" 8GB Memory 750GB HDD 7200rpm DVD Super Multi NVIDIA GeForce GT 660M
LENOVO Y500: Newegg.com - Lenovo IdeaPad Y500 (59359557) Notebook Intel Core i7 3630QM(2.40GHz) 15.6" 8GB Memory DDR3 1600 1TB HDD 5400rpm Dual NVIDIA GeForce GT 650M SLI

Now, what it's driving me nuts it's that I've been searching in google for the gpu of msi(Nvidia gtx 650m(first link) and gt 660m(second link)) and it says there's the GT 650m and GTX 660m. Are those new graphic cards so there's no info about them at all?
And what do you guys think I should go for msi or lenovo.

Thanks in advance

 

Don't worry yourself those are just typos. The GT 650M and GTX 660M are last year's models. Their replacements are the GT 750M and the GTX 765M.

By the way the y500 is a far better deal than the other two.

 

Both of those deals r pretty weak if u plan for future gaming on 1080p and okay settings. I would personally wait for the 765GTX.