I am having trouble deciding between two monitors: Dell U2719D and LG 27GL850. I am currently using two HP 27er (60 Hz) which I am considering upgrading from due to the low PPI. I prefer the design of the U2719D since it has smaller bezels but it lacks support for G Sync and 144 Hz which the GL850 has. Does 144 Hz make that much of a difference for gaming? Thanks!