I will be upgrading to 2015 Architecture as well as getting a new computer. I'm looking at a few different laptops. As a way of lowering system cost some laptop manufacturers have started paring new Graphics Cards with DDR3 memory. These are dedicated graphics cards and dedicated memory. The laptops themselves run on DDR4. For obvious reasons the version of memory the graphics card is using is hard to find.
I'm wondering if anyone has had experience running large files using a graphics card on DDR3 memory.
The computers I am trying to decide between are very equal in other respects, i7 gen 5 processor, 16gb of system memory, SSD, etc.
Below are a few cards I'm considering:
NVIDIA GeForce GTX 950M with 4gb of DDR3
GT860m 4GB DDR5
AMD FirePro M5100 w/2GB GDDR5
Nvidia® Quadro® K1100M w/2GB GDDR5
NvidiaQuadro K2100Mw/2GB GDDR5
Any help and input will be greatly appreciated.