555m questions

[tinywolves]

Okay so I'm looking for a laptop that at the 600-850 kind of range (Canadian prices). So with taxes it would be max in the 900's, preferable not a grand.
I want something with a dedicated card so I can run some games on decent settings.
I was thinking this:
http/www.newegg.ca/Product/Product.aspx?Item=N82E16834246221

It's a Lenovo IdeaPad Y570 with a 555 w/ DDR5 VRAM.

Now on the Lenovo website they have different machines, here is the link
http/shop.lenovo.com/SEUILibrary/controller/e/webca/LenovoPortal/en_CA/catalog.workflow:category.details?current-catalog-id=12F0696583E04D86B9B79B0FEC01C087&current-category-id=8705D5A459CAC32697EC3E976E7F7028

Model number for these is different and I fail to see the difference in the Lenovo IdeaPad Y570 - 08623JU and this model on newegg.

Now I know there are different versions of the 555M so I am confused as to whether this is the crippled one or not.
I know there is like 3 versions or something, The Saber has the bad one?

HELP ME

 

[Pyree]

Different amount of RAM and different OD.

 

[WR2]

NVIDIA GeForce GT 555M review @ Notebookcheck.net lists the different versions of the GT 555M. The Lenovo Y570 has the 96 shader core version.

 

[WR2]

NVIDIA GeForce GT 550M review; just in case you want to compare it to the GT 555M.

 

[tinywolves]

Different amount of RAM and different OD.

OD?

 

[Pyree]

optical drive

 

[tinywolves]

Oh I see, yeah blue ray.
Now the price on newegg is higher but on the lenovo website the i7 person is only like 40 bucks now, is that worth it? Can this comp last like at least 3 hours on battery since the graphics are switchable.

 

[Pyree]

If you don't miss the bluray, get the $799 from Lenovo. A real quad core and 4GB more RAM is worth the money for some task.

I think (conservative estimation) it can be over 3 hours on office task, and about 2 hours on watching SD video on the lowest energy profile when the battery is new.

 

[tinywolves]

Best answer selected by tinywolves.