RAM and Best Graphics Card for CD X6 / X7


We do a lot of artwork that contain small very detailed items.  One such file contains in excess of 340k Objects, and some have even more.  Screen refresh times become an issue whenever trying to do *anything*.

Currently running Win7-SP1 (64BIT), i7-3610QM, 8GB RAM, 256GB-SSD.

Whilst a general performance improvement is always good, for improved video performance specifically, would I be better to:

_____(a) upgrade to 16GB RAM

_____(b) install a Quadro (K1100M? K2100M?) graphics card

_____(c) both