I just built a new rig and am going to buy a new Asus 144hz monitor to run BF4. I was looking into the R9280x but didn't know if there was a better option say Gtx 770 specifically talking about Gsync. I know Nvidia has that cool new Gsync but what about AMD/ See i like the $300 price of the 280x providingg 3gb ram and i would consider crossfire after i saved up a bit for a second card but I just don't know if AMD has as good a G sync feature?