Quick Answer: Screen tearing is a horizontal split where the monitor shows part of one frame and part of the next in the same pass, caused by a mismatch between how fast your GPU renders frames and how fast the panel refreshes. It’s a timing problem, not a hardware fault, and it’s fixed in nearly every case by enabling V-Sync, FreeSync, or G-Sync, or by capping your frame rate a few FPS below the monitor’s max refresh rate. The right fix depends on whether you prioritize zero tearing (V-Sync) or the lowest possible input lag (adaptive sync plus a frame cap).
Tearing looks different from the panel-defect symptoms covered in our monitor vertical lines and monitor horizontal lines guides — a torn frame is a jagged, shifting horizontal split that only appears during motion and moves with the content, while a line-defect fault is a fixed, static line in the same spot regardless of what’s on screen. That distinction matters because tearing is almost always a settings fix, not a repair-or-replace decision.
Screen tearing fixes, ranked by trade-off
| Fix | Eliminates tearing? | Input lag cost | Best for |
|---|---|---|---|
| V-Sync | Yes, always | Up to 1 frame (~16.7ms at 60Hz) | Movies, slow-paced games, casual use |
| FreeSync / G-Sync | Yes, within the sync range | Minimal to none | Competitive and fast-paced gaming |
| Frame-rate cap below max Hz | Yes, alongside adaptive sync | Minimal to none | Keeping FPS inside the sync range |
| Fast-Sync / Enhanced Sync | Yes, above monitor's Hz | Low, but not zero | High-FPS gaming without a frame cap |
| Cable/port check | Only if cable-related | None | Tearing outside games or at desktop |
Why tearing happens
Your GPU renders frames continuously and sends them to the monitor as soon as they’re ready. The monitor, meanwhile, refreshes the screen on its own fixed schedule — 60 times a second at 60Hz, 144 times at 144Hz, and so on. When a new frame arrives from the GPU partway through the monitor’s refresh cycle, the panel doesn’t wait: it starts drawing the new frame from that point downward while the rest of the screen still shows the old frame. The result is a visible horizontal seam where the two frames don’t line up, and it’s most obvious during fast horizontal camera movement because that’s when the misalignment between the two half-frames is largest.
The two ways to fix it
Cap the mismatch with V-Sync. V-Sync (vertical sync) forces the GPU to hold each finished frame in a buffer until the monitor is ready for the next refresh, so the panel only ever draws one complete frame per cycle — tearing becomes structurally impossible. The cost is that your frame rate gets capped at the monitor’s refresh rate, and Blur Busters’ latency testing has measured the added input lag at up to a full frame interval when the GPU could otherwise render faster than the panel refreshes — noticeable in fast-paced or competitive games.
Let the panel match the GPU with adaptive sync. FreeSync (AMD) and G-Sync (Nvidia) flip the relationship: instead of the GPU waiting for the monitor, the monitor’s refresh rate dynamically matches whatever frame rate the GPU is actually delivering, within a supported range (commonly 48Hz up to the panel’s max). Because the monitor is always refreshing exactly when a new frame is ready, tearing doesn’t occur and there’s no V-Sync-style frame buffering delay. The catch: once your frame rate climbs above the top of that sync range, tearing can return — which is why Nvidia and AMD both recommend pairing adaptive sync with either V-Sync or an in-game frame-rate cap set a few FPS below your panel’s maximum, so the frame rate never actually exceeds what the sync range can cover. For a full breakdown of which standard fits which GPU, see our FreeSync vs G-Sync comparison.
LG UltraGear 27GS95QE — Best Monitor for Eliminating Tearing
- Certified for both FreeSync Premium Pro and G-Sync Compatible, so it syncs cleanly with either an AMD or Nvidia GPU without a driver-compatibility gamble.
- 0.03ms response time keeps ghosting from creeping in even with adaptive sync active near the top of its 48-240Hz range, where tearing is most likely to sneak back in.
- 240Hz ceiling gives real headroom above typical competitive frame rates, so a frame-rate cap set a few FPS under the max rarely feels limiting.
Setting up a new monitor to get adaptive sync working right the first time is a lot less frustrating when the delivery doesn’t drag on for a week — Prime’s free 30-day trial gets most monitors to your door in two days, so you’re testing settings the same week you order.
Quick setup checklist
- Turn on FreeSync or G-Sync first, in both the monitor’s OSD menu and the GPU control panel (AMD Software or Nvidia Control Panel) — both sides need it enabled, not just one.
- Set an in-game or driver-level frame-rate cap a few FPS below your monitor’s max refresh rate (for example, 237 FPS on a 240Hz panel) so your frame rate never exceeds the sync range.
- Enable V-Sync only if you still see tearing above the cap, or if you’d rather have zero tearing than the lowest possible input lag — check both and pick based on what you notice, not just the spec sheet.
- Confirm the sync range in the OSD, since some panels support a narrower adaptive-sync window (like 48-165Hz) than their rated max refresh rate.
- Rule out the cable if tearing shows up outside of games — reseat it, remove any dock or adapter, and confirm it’s rated for your resolution and refresh-rate combination.
Screen tearing by the numbers
- Input lag cost. Blur Busters’ latency testing has measured V-Sync’s added input lag at up to a full frame interval — about 16.7ms at 60Hz — when the GPU is capable of exceeding the monitor’s refresh rate, which is why competitive players lean on adaptive sync instead.
- Sync range ceiling. Most FreeSync and G-Sync monitors only sync tear-free up to their certified range’s top end (commonly the panel’s max refresh rate), which is why Nvidia and AMD both recommend pairing adaptive sync with a frame-rate cap a few FPS below that ceiling rather than relying on it alone.
The bottom line
Screen tearing is a timing mismatch, not a monitor fault — enable FreeSync or G-Sync first, cap your frame rate a few FPS below your panel’s max, and add V-Sync only if tearing persists or you’d rather trade a bit of input lag for a guaranteed clean image. A monitor certified for both standards, like the LG UltraGear 27GS95QE, removes the GPU-brand guesswork entirely. Seeing a static line instead of a shifting tear? Our monitor vertical lines and monitor horizontal lines guides cover that panel-defect symptom instead, and our monitor refresh rate guide breaks down which Hz tier is actually worth buying if you’re shopping for a new panel rather than fixing the one you have.