How much refresh rate is too much? Well, it increasingly looks like there's basically no limit to how much companies will try to eke out of their displays at this point. LG just struck quite a big blow, at least in marketing terms, by producing the world's first 1,000Hz 24.5-inch display.
That's right, 1,000Hz – so many Hz you're unlikely to realistically be able to tell the difference between it and, say, 360Hz. Still, the LG UltraGear G5 25G590B will give you the peace of mind of knowing that you'll get perfect smoothness in-game, almost literally regardless of the frame rates that you're pushing.