VSync On or Off? Turn It Off in Competitive, On in Single-Player — Here’s Why

Quick answer: Turn VSync off for competitive games, on for single-player games. Here is the 60-second setup before the full explanation.

Quick Setup:

1. Competitive FPS or battle royale: VSync off in-game settings
2. Single-player story game: VSync on in-game settings
3. G-Sync or FreeSync monitor: enable in driver, set VSync on in driver only, cap FPS 3 below max refresh rate
4. No adaptive sync + 60Hz monitor: VSync off, cap FPS to 58 via RTSS or NVIDIA Control Panel
5. No adaptive sync + 144Hz+: VSync off, cap FPS to 141 (or 3 below your max refresh rate)

Verified April 2026. Settings behavior varies by game engine and GPU driver version.

What VSync Does — The Mechanism

Your GPU renders frames as fast as it can, regardless of your monitor’s refresh rate. When it finishes a new frame while your monitor is mid-refresh, the monitor shows half of the new frame on top and half of the old frame on the bottom. That horizontal split is screen tearing.

VSync eliminates tearing by holding each completed frame in a buffer until the monitor finishes its current refresh cycle and is ready to display a new image. Clean, tear-free output — but at a cost. Your GPU now queues 2–3 frames waiting for permission to display. The frame you just rendered sits idle. That gap between your mouse movement and the on-screen response is input lag, and VSync creates it deliberately to deliver a clean image.

The Real Input Lag Numbers

“Adds some lag” undersells the problem. At 60Hz, VSync more than doubles your existing input lag [1]:

At 60Hz, VSync can triple baseline latency — from 20ms to 80ms. The gap closes at higher refresh rates but never disappears. Even at 144Hz, 25–40ms of added lag is measurable to trained hands in CS2 or Valorant. Pro players on 240Hz monitors still run VSync off because consistency at the lowest possible lag matters as much as the absolute number.

There is a second trap. When your FPS drops below your monitor’s refresh rate with VSync enabled, the GPU cannot fill the buffer in time. Rather than tearing, VSync locks to half the refresh rate — 144Hz drops to 72fps, 60Hz drops to 30fps [3]. You see stuttering instead of tearing, and input lag spikes well above 100ms during those drops [5]. A 60Hz monitor with a GPU that struggles under load and VSync enabled is the worst-case outcome: stutter and lag at the same time.

VSync On or Off — Decision by Game Type

Turn VSync OFF:

• Competitive FPS (CS2, Valorant, Apex Legends, Overwatch 2) — every millisecond of added lag costs reactions and gunfights
• Battle royale (Fortnite, PUBG, Warzone) — same reaction-speed priority applies
• Fighting games (Street Fighter 6, Tekken 8, Mortal Kombat 1) — frame timing is a core mechanic; added lag is direct interference
• Any game where your FPS fluctuates frequently — VSync’s stutter-on-dip is worse than occasional tearing

Turn VSync ON:

• Single-player story games (Cyberpunk 2077, Elden Ring, Baldur’s Gate 3) — screen tearing breaks visual immersion; you won’t notice lag at normal play pace
• Turn-based and strategy games (Civilization VI, Total War, Crusader Kings 3) — no reaction speed requirement; tearing is visually distracting
• Open-world casual exploration — cinematic feel takes priority over twitch response

Test both for:

• Sim racing (iRacing, Assetto Corsa Competizione) — steering wheel response benefits from lower lag; try VSync off with a frame cap first
• MMORPGs — depends on whether you’re in competitive PvP content or questing at your own pace

Quick Match — VSync Setting by Player Type

G-Sync or FreeSync Monitor? Use This Setup Instead

Adaptive sync makes standard VSync obsolete. Instead of forcing the GPU to wait, G-Sync and FreeSync make the monitor’s refresh rate follow the GPU’s output — eliminating tearing without queuing frames or adding lag. Input lag drops to 10–15ms instead of 25–80ms [1].

Since 2019, every NVIDIA GTX 10-series and newer GPU supports FreeSync monitors. NVIDIA lists these as “G-Sync Compatible” in the driver settings — you do not need a dedicated G-Sync module monitor to benefit from adaptive sync [1].

The optimal adaptive sync setup:

1. Enable G-Sync or FreeSync in your GPU control panel (NVIDIA Control Panel or AMD Adrenalin)
2. Set VSync to ON in the driver only — not in-game (it acts as an overflow ceiling, not the primary sync method)
3. Cap your FPS to 3fps below your monitor’s max: 141fps on 144Hz, 237fps on 240Hz — use RTSS or your in-game frame limiter

Keep your framerate inside the adaptive sync range at all times and you get tear-free output with near-zero lag penalty. For a full breakdown of what every graphics setting actually does, see our PC Game Settings Explained guide. To squeeze more FPS out of your current hardware, our PC optimization guide covers the full settings stack from shadows to anti-aliasing.

VSync Alternatives Ranked (No Adaptive Sync Monitor)

If your monitor lacks G-Sync or FreeSync, these options work in order of preference:

1. FPS cap below refresh rate — Cap to 58fps on 60Hz or 141fps on 144Hz. Your GPU completes frames before each refresh cycle begins, so tearing is minimal and zero lag is added. This is free: use RTSS (RivaTuner Statistics Server) or the NVIDIA Control Panel Max Frame Rate limiter.

2. NVIDIA Fast Sync / AMD Enhanced Sync — Renders frames uncapped and delivers only the most recently completed full frame to the monitor, eliminating tearing without a hard frame rate cap [2]. Input lag is lower than VSync but higher than VSync off. Your FPS needs to be at least twice your monitor’s refresh rate for clean results. Known to introduce micro-stuttering in some games — test before committing. NVIDIA: GTX 900-series or newer. AMD: HD 7000 or newer with drivers 17.7.2+.

3. Adaptive VSync (NVIDIA only) — Enables VSync automatically when FPS exceeds your refresh rate, disables it when FPS drops. Prevents both tearing and stutter artifacts but adds lag whenever it engages. Solid middle-ground for systems that cannot consistently hit high framerates.

Frequently Asked Questions

Does VSync lower FPS?
VSync caps your frame rate at your monitor’s refresh rate. If your GPU renders below that ceiling already, VSync has no effect on FPS — only on input lag. If you’re rendering above it, VSync limits your output to the refresh rate. You gain nothing from VSync if you’re already FPS-limited by your hardware.

Should I use VSync at 144Hz?
Competitive players: no. At 144Hz, VSync still adds 25–40ms of lag. Use a frame cap of 141fps with VSync off instead. Casual players: acceptable, though G-Sync or FreeSync is a cleaner solution if your monitor supports it.

VSync on or off with G-Sync or FreeSync?
Enable VSync in the driver settings, disable it in-game. G-Sync and FreeSync handle sync dynamically up to your max refresh rate. The driver-level VSync kicks in only as a ceiling cap above that rate. Running in-game VSync on top of G-Sync stacks unnecessary frame buffers and defeats the adaptive sync advantage.

Sources

1. V-Sync vs G-Sync vs FreeSync: What They Do and Which to Use — GamerHardware (gamerhardware.org/vsync-vs-gsync-vs-freesync-explained/)
2. What Is NVIDIA Fast Sync and AMD Enhanced Sync? — DisplayNinja
3. What Is V-SYNC And Is It Worth It? — DisplayNinja
4. What Is VSync, and How Can It Improve Your Gaming Experience? — Digital Trends
5. What Is VSync 2026? — WePC

Michael R.

I've been playing video games for over 20 years, spanning everything from early PC titles to modern open-world games. I started Switchblade Gaming to publish the kind of accurate, well-researched guides I always wanted to find — built on primary sources, tested in-game, and kept up to date after patches. I currently focus on Minecraft and Pokémon GO.