I'm wanting to upgrade my graphics card (EVGA GTX 960 SSC 4GB gddr5) so I can run games in vr or at least at higher settings. I was originally going to get a second 960 but I'm not sure if my motherboard(MSI Z97 PC Mate) can have sli should I get another 960(and maybe motherboard) or get a different graphics card? (my cpu is a i5-4690k)
my budget is around $300 + my graphics card