Hey I plan on upgrading my gpu but I'm not sure if I should get two 970s or one 980. I know performance will be better with two 970s but there's the hassle with sli. I plan on gaming on three monitors 5760 x 1080. I would like to get one 980 and try to avoid going down the sli route. Will a single 980 cut it at high settings? All I can find is benchmarks at ultra settings. Thanks