Dual 650m V.S Dual 650m SLI (Lenovo y500)

[red2940]

I've been researching the y500 latop by lenovo. Link:

http://www.amazon.com/Lenovo-IdeaPad-15-6-Inch-Laptop-Metal/dp/B00ATANUT4

I've seen some that say Dual 650m and some that say Dual 650m SLI i was wondering if the SLI one is just more specific then the DUal 650m or is the SLI one actually a differnt type and if so is it better.

Examples

Lenovo Ideapad Y500 Notebook i7 15.6" 12GB DDR3 1TB HDD+16GB SSD Dual GT650M

Lenovo Ideapad Y500 Notebook i7 15.6" 12GB DDR3 1TB HDD+16GB SSD Dual GT650M SLI

 

[red2940]

zBump

 

[olin9]

They are the same thing. SLI = 2 GPU

 

[notea]

the same exact laptop.. dual GPU=SLI/CFX