Without or ELMB, you may experience tearing & ghosting.
With ELMB SYNC, you can enable ELMB (low-motion-blur technology) and G-SYNC Compatible at the same time, eliminating ghosting and tearing for sharp visuals and high frame rates while gaming.
G-SYNC Compatible technology delivers the smoothest, fastest and most breathtaking gaming visuals by eliminating screen tearing and choppy frame rates, and minimizing display stutter and input lag.
When disabling ELMB, you may experience ghosting.
ASUS Extreme Low Motion Blur provides a 1ms response time (MPRT) to eliminate smearing and motion blur. It also makes moving objects appear even sharper, so gameplay is more fluid and responsive.
When disabling G-SYNC Compatible, you may experience tearing.