MacBook Pro 2014 With 16gb RAM and Intel Iris Pro Graphics or 8gb RAM and a Nvdia 750m?

[a_peach7890]

Hi,
I'm looking to buy a MacBook Pro and I've found two here:
https/uk.webuy.com/product.php?sku=SLAPAPPMBP11208B
https/uk.webuy.com/product.php?sku=SLAPAPPMBP11210B

They are both MacBook Pro Retina 2014s with similar i7s, but the first has Nvidia 750m graphics and 8gb RAM, and the second has Intel Iris Pro 5200 graphics and 16gb RAM. I am going to be using it mainly for music creation with Logic Pro and maybe Pro Tools, and some CAD with Autodesk Inventor Pro and AutoCAD. Which would be best for these uses?
Thanks

 

[nvincent_08]

if you will mainly use it for some graphics intensive task better get the one with 750m, also i guess considering the price difference, the one with 750m would be more worth it, ram can also be upgraded in older mac if you want to, 8gb should also already be plenty for os x