Knowing your framerate can help you decide which monitor to buy-after all, there's no reason to spring for a 144Hz monitor if your graphics card is only powerful enough to produce 60fps in the games you play. For example, if your game is running slowly, displaying the framerate can help you figure out which graphics settings to turn down for the most meaningful boost. It isn't just about bragging rights, though-knowing your framerate can also help you ensure you're getting the best performance possible.
