Hello. Bit of a dumb question here, if I buy a 144hz monitor that has a resolution of 2560x1440, can i set the resolution to 2560x1080? And also, what are the minimum requirements for overwatch to run at 1920x1080 or 2560x1080 at ultra settings (not epic) at 144fps, while having ddr3 ram? Is an i7 3770 at 3.9ghz enough?