I purchased the 1080 FTW DT version not knowing that it was different than all other FTW cards in core clock and it's going to arrive today. Is the 0.110 ghz that significant at 1440p? I bought it at B&H for $650 when the regular FTW cards were going for $680-700 so I went with the cheapest option on a whim, but now I'm regretting not investing in the better FTW cards. Am I worrying over nothing?