G-Sync / FreeSync
Also searched as: gsync · g-sync · freesync · g sync · free sync
What it means
The two brand names for VRR (variable refresh rate — the monitor waiting for each frame instead of refreshing on a fixed clock). G-Sync is NVIDIA's; FreeSync is AMD's.
More detail
Most modern monitors support at least one, and many support both regardless of your graphics card. You turn it on in two places — the monitor's own menu and your graphics driver — and both need to agree. Outside its supported frame-rate range it switches off, which is why an FPS cap keeps it engaged.
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