Question 1

How do I run a G-Sync test?

Accepted Answer

Enable G-Sync or FreeSync in your GPU control panel, then click Start Test above. The G-Sync test animates content at varying frame rates: with VRR working you will see smooth motion with no tearing, while horizontal tear lines mean VRR is off or unsupported at the current settings. It takes about 10 seconds.

Question 2

Do I need G-Sync or FreeSync?

Accepted Answer

Variable refresh rate (G-Sync/FreeSync) eliminates screen tearing without the input lag penalty of V-Sync — it's one of the most impactful display technologies for gaming. G-Sync Compatible monitors work with NVIDIA cards; FreeSync works with AMD. Most modern gaming monitors are dual-compatible. If you game between 40-144 FPS, VRR makes a clearly visible difference in smoothness.

Question 3

How do I verify my G-Sync or FreeSync is actually working?

Accepted Answer

Use this test to confirm VRR is active. In Windows: right-click desktop → Display Settings → Advanced display → verify 'Variable refresh rate' is on. In NVIDIA Control Panel: G-Sync must be explicitly enabled. In AMD Radeon Settings: FreeSync must be toggled on per-monitor. Without confirmation, many users think VRR is running when it's actually disabled after a driver update.

Question 4

What's the difference between G-Sync and G-Sync Compatible?

Accepted Answer

G-Sync uses a proprietary NVIDIA module inside the monitor with dedicated hardware — no tearing at any FPS, plus ULMB (backlight strobing for motion clarity). G-Sync Compatible uses FreeSync hardware validated by NVIDIA to work correctly with NVIDIA cards — nearly identical real-world performance at significantly lower monitor cost. G-Sync module monitors cost $50-200 more. For most buyers, G-Sync Compatible is the better value.

G-Sync Test: Is Your FreeSync or VRR Actually Working?

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