V-Sync synchronizes frame presentation with a display’s refresh behavior; G-SYNC and FreeSync use variable refresh rate (VRR) to let a compatible display follow the GPU’s frame rate within a supported range. Which works best depends on the exact monitor, graphics card, connection, settings, and VRR range—not just the name on the box.
How the three technologies differ
| Technology | What it synchronizes | What to know |
|---|---|---|
| V-Sync | Frame presentation to the display’s refresh behavior | Can prevent tearing, but conventional V-Sync may produce stutter when frame rate drops below the refresh cap. Turning it off can expose tearing when frame rate exceeds refresh. NVIDIA explains the tradeoff. |
| G-SYNC | Monitor refresh rate to GPU frame rate | NVIDIA offers processor-equipped G-SYNC displays and separately validates some VRR displays as G-SYNC Compatible. Requirements and settings vary by category. NVIDIA’s G-SYNC documentation. |
| FreeSync | Display refresh rate to compatible GPU frame rate | AMD’s technology uses standards including DisplayPort Adaptive-Sync and HDMI Variable Refresh Rate. Features depend on certification tier and model. AMD’s FreeSync overview. |
V-Sync and VRR are not simply three names for the same switch. Conventional V-Sync works around a display’s refresh behavior; VRR changes the display’s refresh rate to track frame delivery within the monitor’s operating range. NVIDIA’s Adaptive VSync changes V-Sync behavior around the refresh cap, but it is a separate feature from G-SYNC.
What happens when frame rate changes?
With conventional V-Sync
When V-Sync is enabled, the game’s frames are presented in sync with display refresh, reducing tearing. NVIDIA says that if frame rate falls below the V-Sync cap, performance drops can produce stutter. With V-Sync disabled, a frame can be displayed while the monitor is refreshing, making a tear visible when frame rate is above refresh. These are NVIDIA’s described behaviors, not a guarantee that every game or setup will look identical.
With G-SYNC or FreeSync
Within a monitor’s supported VRR range, refresh rate can track the GPU’s changing frame rate rather than staying fixed. The range matters: check the exact model’s minimum and maximum supported rates and how it handles frame rates near those limits.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitches#1 Best Overall
- High-Performance Display: 24.5-inch Full HD (1920x1080) Fast IPS gaming monitor with 240Hz refresh rate designed for professional gamers and immersive gameplay
- Ultra-Fast Response Time: ASUS Fast IPS technology enables a 0.3ms (GTG) response time(min.) for sharp gaming visuals with high frame rates
- Adaptive Sync Technology: FreeSync Premium and G-Sync compatible delivers a seamless, tear-free gaming experience
- Advanced Motion Blur Reduction: ASUS Extreme Low Motion Blur Sync (ELMB SYNC) technology enables ELMB together with variable refresh rate, eliminating ghosting and tearing for sharp gaming visuals with high frame rates
- Convenient Monitor Control: DisplayWidget Center enables easy OSD access and monitor settings adjustments with a mouse
AMD’s Low Framerate Compensation (LFC), required for FreeSync Premium and Premium Pro according to AMD’s overview, addresses frame rates below a display’s minimum refresh rate by duplicating frames. For example, AMD says a 60–144 Hz display can show a 40 FPS game by doubling frames so the display synchronizes at 80 Hz. Check the specifications and notes for the specific display category and model.
G-SYNC, G-SYNC Compatible, and FreeSync are not identical labels
G-SYNC categories
NVIDIA describes G-SYNC displays as incorporating G-SYNC processors. G-SYNC Compatible displays use VRR and have been validated by NVIDIA; they do not thereby become processor-equipped G-SYNC displays. System requirements and setup vary by category, and the feature may need to be enabled in NVIDIA Control Panel. Consult NVIDIA’s G-SYNC information and the individual display’s specifications.
Rank #2
- High-Resolution QHD Gaming Display: 27-inch QHD (2560 x 1440) gaming monitor with 180Hz refresh rate designed for professional gamers and immersive gameplay
- ASUS Extreme Low Motion Blur Sync Technology: ELMB Sync technology enables ELMB and variable-refresh-rate technologies to work simultaneously to eliminate ghosting and tearing for sharp gaming visuals with high frame rates
- Advanced Synchronization Technologies: FreeSync Premium, G-Sync compatible and AdaptiveSync technology delivers a seamless, tear-free gaming experience by enabling VRR (variable refresh rate) by default
- High Dynamic Range Support: HDR technology supports HDR-10 format to enhance bright and dark areas for improved visual depth and contrast
- Package Contents: DisplayPort cable, L-shaped Screwdriver, Power cord, Power adapter, Quick start guide, Warranty Card
FreeSync tiers and standards
AMD lists FreeSync, FreeSync Premium, and FreeSync Premium Pro, with features that vary by tier. AMD says FreeSync can be delivered over DisplayPort and HDMI on certified displays, but support depends on the product and connection. VESA Adaptive-Sync certification is not the same as AMD FreeSync certification: a monitor carrying one label should not be assumed to have every feature associated with the other. See AMD’s certification and feature details and VESA’s Adaptive-Sync Display CTS r1.1a specification, dated May 19, 2023.
How to choose and set up the right mode
- Check the exact monitor model. Look up whether it supports the sync mode you want, its VRR minimum and maximum refresh rates, and any explicitly listed LFC or tier-dependent features.
- Confirm GPU compatibility. Check the graphics card’s support for the monitor’s mode; a label on the monitor alone does not establish compatibility with every GPU.
- Verify the connection and port. Support can differ by connection, port, and mode. Confirm the specific combination in the monitor and GPU documentation.
- Enable the monitor setting. Turn on the relevant option in the display’s on-screen menu. AMD’s setup guidance says to enable FreeSync on the monitor and check its status in AMD Software.
- Enable the GPU-side setting. NVIDIA documents enabling G-SYNC in NVIDIA Control Panel. Confirm the active display and selected mode there where applicable.
- Decide how to handle frame rates above refresh. AMD recommends V-Sync or a frame-rate cap for tear-free visuals if frame rate regularly exceeds display refresh. That is vendor setup guidance, not a universal best choice for every player or latency preference.
What the published counts do—and do not—tell you
AMD reported approximately 4,000 FreeSync-enabled displays as of November 2023; this is a dated figure, not a current market count. NVIDIA reported that 28 of 503 monitors tested passed G-SYNC Compatible validation in its first testing phase, published May 27, 2019. That is a historical result for that phase, not a current pass rate. The figures measure different things and should not be compared as if they describe the same population or period. NVIDIA’s Phase 1 announcement.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Quick Recap
Best Value
- High-Performance Display: 24.5-inch Full HD (1920x1080) Fast IPS gaming monitor with overclock to 310Hz refresh rate designed for professional gamers and immersive gameplay
- Ultra-Fast Response Time: ASUS Fast IPS technology enables a 0.3ms (GTG) response time(min.) for sharp gaming visuals with high frame rates
- Adaptive Sync Technology: FreeSync Premium and G-Sync compatible delivers a seamless, tear-free gaming experience
- Advanced Motion Blur Reduction: ASUS Extreme Low Motion Blur Sync (ELMB SYNC) technology enables ELMB together with variable refresh rate, eliminating ghosting and tearing for sharp gaming visuals with high frame rates
- Convenient Monitor Control: DisplayWidget Center enables easy OSD access and monitor settings adjustments with a mouse
Rank #4
- Vivid Color, Fast Response, Total Control - The 27" UltraGear Full HD IPS gaming monitor delivers vivid HDR10 color, ultra-smooth 144Hz speed, and 1ms MBR clarity. G-SYNC compatibility & FreeSync keep gameplay tear-free. The sleek, slim design keep you focused and in control.
- 144Hz Refresh Rate - Enjoy fluid, gameplay with a 144Hz native refresh rate. Minimized motion blur keeps every frame sharp, so you can stay locked in on the action.
- 1ms MBR: Fast-Paced Speed to Victory - 1ms Motion Blur Reduction (MBR) keeps gameplay smooth and sharp, cutting blur and ghosting so fast-moving action stays clear—helping you stay competitive when every millisecond counts.
- NVIDIA G-SYNC Compatible & AMD FreeSync - NVIDIA G-SYNC Compatible and AMD FreeSync deliver smooth, tear-free, low-latency gaming with high refresh rates—so every frame stays sharp.
- Vivid Color that Puts You in the Action - Step onto the battlefield with HDR10 visuals and up to 99% sRGB color gamut coverage. The IPS display delivers rich, vivid tones, so every explosion, shadow, and landscape appears exactly as the developers intended.
Rank #3
- LG UltraGear OLED Goes Glossy - Experience ultra-smooth, tear-free gameplay with up to 240Hz refresh rate and 0.03ms response time on a glossy, bright 27” QHD OLED display. React instantly, spot every detail, and outpace your opponents in every frame with outrageous speed and clarity.
- Next-Level OLED Brightness, for Next-Level Play - The brilliant OLED display brings every scene to life with jaw-dropping color and intensity. Delivering a standard 275 nits of brightness and peaking at 1300 nits, your games shine with vivid clarity—keeping dark corners detailed, explosions dazzling, and the action always visible no matter the environment.
- VESA DisplayHDR True Black 400 - An OLED display with VESA DisplayHDR True Black 400 and a 1.5M:1 contrast ratio deliver deep blacks and dazzling highlights, so you catch every hidden detail in dark scenes and every spark in the bright ones. With up to 98.5% DCI-P3 color, your worlds burst with vibrant intensity—making every game feel more alive.
- Three UL Certifications. One Clear Advantage for Eye Comfort. - This UltraGear OLED display is three times UL-certified—for Anti-Glare, Flicker-Free, and Low Blue Light. Combined with a glossy finish, the display helps reduce distractions, keep your view crisp, and maintain visual comfort—so you can stay focused and perform at your best, even during extended gaming sessions.
- 27” OLED Brilliance with up to 240Hz of Game-Changing Speed - Experience ultra-smooth, tear-free gameplay with up to 240Hz refresh rate on a glossy, bright 27” QHD OLED display.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
