geforce gt 650m 2gb GDDR5 vs gt 750m 4gb

[Mohamed Ezz]

Iam going to buy one of these laptops:
Acer aspire V5-573: i7 4500u - nvidia GeForce GT 750m 4GB DDR3
Lenovo Y500 : i7 3630qm - nvidia GeForce GT 650m 2GB DDR5
all other specs are almost the same

It will be used for rendering works and 3d modelling, so which of these laptops should I buy?

any help will be appreciated

thanks

 

[velo3100]

Go with the gt 750m as it is a better gpu. This is needed in 3d rendering and the cpu is not important.