I have a haswell processor with HD 4600 graphics on it, but my friend gave me an older GeForce 7950 GX2 card. I know the GX2 has 1 gig of dedicated DDR3 Ram (1600). I also know that the ram i am using in my computer is a total of only 8 gigs and it is 1333 ram, not 1600. Which is recommended that I use?