The differences between G-Sync and FreeSync are relatively small. Conventional G-Sync requires manufacturers to build a dedicated chip into the monitor. That conveys some benefits, including lower input lag, a broader variable refresh rate (VRR), and variable overdrive. G-Sync monitors also have a slightly wider refresh rate window, allowing it to stabilize lower framerates.  That said, FreeSync is cheaper for manufacturers to add and support because it doesn’t require a chip. That means there are more FreeSync monitors out there than G-Sync, including many cheap gaming monitors. However, that gap is closing thanks to Nvidia’s hardware-free “G-Sync Compatible” designation.