Choice between 2 lenovo laptops?

I want something that will last me a long time. I will be running autocad and fps games. I realize the 16g ram is overkill, but is it worth it (for the extra $) to get it now rather than upgrading in the future.

I think the only difference is the $1150 one (59405667) has 16 ram (instead of 8) and the additional 2 gb SLI graphics for $270 more.

SPECS:
http://shop.lenovo.com/...ies/y510p/

Y510p Laptop - 59405668

Y510p Laptop - 59405667

I would go with the more expensive one, $270 isn't much more money too get double the RAM and 2GB graphics.

Get the more expensive one