Just got dark souls and booted it up. My frames per second is at an unplayable rate. On canyourunit.com it says I have 64 mb of the minimum requirement of 2048 MB Dedicated Video RAM http://. I have 8 GB of RAM, Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz 3.GHz processor, GeForce GTX 645 graphics card and Windows 7 OS. How do I increase my dedicated video RAM to a playable rate?