Hi my existing setup is an i7 6850 with 64gb of ram on an ASUS Rampage Edition 10 motherboard with two Maxwell Titan X cards in SLI. I play a lot of intensive games like Total War Warhammer and Battlefields. Is it worth my upgrading to 1080 or 1080 TI SLI? I'm looking at Gears of War 4 and other upcoming games. I use a 27 inch 1440p ASUS G Sync montitor and don't use 1080P.