You paid for a 144Hz or 240Hz monitor, but is it actually running at that speed right now? Refresh rate mismatches are more common than most people realize — a cable limitation, an overlooked display setting, or a driver default can silently cap your screen at 60Hz even when the hardware supports far more. Testing your monitor refresh rate takes just a few minutes and removes all the guesswork, whether you’re troubleshooting choppy motion, verifying a new purchase, or confirming your gaming setup is running the way it should.
This guide walks through every reliable method for checking refresh rate, from built-in operating system tools to dedicated browser-based testers, along with how to fix the most common causes of an incorrect reading.
What Is Refresh Rate and Why It Matters
Refresh rate measures how many times per second your monitor redraws the image on screen, expressed in Hertz (Hz). A 60Hz monitor refreshes 60 times per second, a 144Hz monitor refreshes 144 times per second, and so on. Higher refresh rates produce smoother motion, reduced blur during fast movement, and a more responsive feel in competitive games or fast-scrolling content.
The catch is that refresh rate is only useful if it’s actually enabled. Many displays ship with a default of 60Hz regardless of their maximum supported rate, requiring a manual change in display settings before the extra performance kicks in. Others get capped unintentionally by an underpowered cable or an incorrect port.
Refresh Rate vs. Frame Rate
These two terms get confused constantly, but they measure different things. Refresh rate is a fixed property of your monitor — how often it can redraw the screen. Frame rate (FPS) is how many frames your GPU is actually producing per second, which varies based on the game or application. A 144Hz monitor can only display up to 144 frames per second even if your GPU is capable of rendering more, and a monitor stuck at 60Hz will never show motion smoother than 60 frames per second no matter how powerful your graphics card is.
Method 1: Check Refresh Rate Through Windows Settings
Windows makes it straightforward to view and change your current refresh rate without any third-party software.
- Right-click on your desktop and select Display settings
- Scroll down and click Advanced display settings
- Select your monitor from the dropdown if you have multiple displays connected
- Look for Refresh rate or Choose a refresh rate
This menu shows both the currently active refresh rate and every rate your monitor supports at the selected resolution. If the dropdown only shows 60Hz on a monitor rated for 144Hz or 165Hz, that’s a strong signal something is limiting the connection — usually the cable, the port, or an outdated driver.
Method 2: Check Refresh Rate on macOS
macOS handles this through System Settings rather than a dedicated display panel, and the exact steps vary slightly by macOS version.
- Open System Settings and click Displays
- Select your connected monitor
- Click the Refresh Rate dropdown near the resolution options
If Refresh Rate doesn’t appear as an option, hold the Option key while clicking Gather Windows or use the “Scaled” resolution menu — Apple sometimes hides higher refresh rate options unless a display is correctly detected as compatible.
Method 3: Use an Online Refresh Rate Test
Operating system menus only tell you what the system thinks it’s sending — not necessarily what the monitor is actually displaying. A visual refresh rate test closes that gap by rendering a moving element on screen and letting you judge smoothness and consistency in real time, which is especially useful for confirming a high refresh rate panel isn’t silently dropping frames.
Our built-in refresh rate testing tool runs directly in your browser, requires no downloads, and gives you an immediate visual confirmation alongside a numeric readout of your display’s actual performance. It’s the fastest way to sanity-check a reading you got from a settings menu, especially after changing cables, ports, or graphics drivers.
Method 4: Use Third-Party Benchmarking Software
For a more technical breakdown, dedicated benchmarking tools can log refresh rate alongside frame timing, stutter detection, and variable refresh rate (VRR) behavior. These are most useful for enthusiasts diagnosing specific performance issues rather than a one-time check.
- GPU vendor overlays — Both major GPU manufacturers include an in-game overlay that displays real-time refresh rate and frame rate during gameplay
- Frame time analyzers — Tools that log frame delivery over time, useful for spotting inconsistent refresh behavior rather than a flat number
- Blur Busters test suite — A well-known set of browser-based motion tests for judging real-world refresh rate performance and ghosting
Common Reasons Your Refresh Rate Test Shows the Wrong Number
Wrong Cable Type
Not every HDMI or DisplayPort cable supports high refresh rates. Older HDMI 1.4 cables cap out well below what HDMI 2.1 supports, and a cheap or damaged DisplayPort cable can silently fall back to a lower refresh rate even if both the monitor and GPU support more.
Incorrect Port Selection
Many monitors have multiple input ports with different maximum specifications. A monitor might support 240Hz over DisplayPort but only 144Hz or 60Hz over one of its HDMI ports. Always check your monitor’s manual for per-port specifications.
Resolution and Refresh Rate Tradeoffs
Bandwidth limitations mean some monitors can’t run their maximum resolution and maximum refresh rate simultaneously. Dropping resolution slightly sometimes unlocks a higher refresh rate ceiling, and vice versa.
Outdated Graphics Drivers
An outdated or corrupted GPU driver can prevent Windows or macOS from correctly detecting a monitor’s full refresh rate capabilities. Updating to the latest driver from the GPU manufacturer resolves this in most cases.
Windows Defaulting to 60Hz After Updates
It’s a well-documented quirk: Windows updates occasionally reset display settings, including refresh rate, back to a 60Hz default. This is worth checking anytime a display suddenly feels less smooth after a system update.
| Symptom | Likely Cause |
|---|---|
| Refresh rate dropdown only shows 60Hz | Wrong cable or port, outdated driver |
| Refresh rate correct in settings but motion looks choppy | Frame rate below refresh rate, VRR misconfiguration |
| Refresh rate resets after restart | Driver not saving settings, Windows update override |
| Different refresh rate on different ports | Per-port bandwidth limitations on the monitor |
How to Fix a Locked or Incorrect Refresh Rate
- Confirm you’re using a cable rated for your target refresh rate and resolution combination
- Try each available port on the monitor to see if refresh rate options change
- Update your GPU driver to the latest version from the manufacturer’s website
- Manually set the refresh rate in display settings rather than relying on auto-detection
- Check the monitor’s on-screen display (OSD) menu, as some models require refresh rate or overclocking features to be manually enabled there
Frequently Asked Questions
Q. Can I test my monitor’s refresh rate without installing software?
A. Yes. Browser-based refresh rate testers, including tools built directly into testing sites, let you verify refresh rate visually and numerically without downloading anything.
Q. Why does my 144Hz monitor only show 60Hz as an option?
A. This is almost always a cable, port, or driver issue. Check that you’re using a cable rated for 144Hz and connected to the correct port, then update your graphics driver.
Q. Does refresh rate testing measure input lag too?
A. No. Refresh rate and input lag are related but separate measurements. A refresh rate test confirms how many times per second the screen redraws, while input lag measures the delay between an action and its on-screen response.
Q. Will a refresh rate test work on a laptop screen?
A. Yes, browser-based refresh rate tests work on laptop displays the same way they do on external monitors, provided the laptop panel supports a refresh rate above 60Hz.
