Refresh Rate Explained: 60 vs 120 vs 144 vs 240Hz

Refresh rate is how many times per second your display updates, measured in hertz (Hz). Higher = smoother motion. It is also the single spec most likely to be sitting at the wrong value on a screen you already own.

What each tier feels like

• 60Hz — standard for office and general use. A new image every 16.7ms.
• 120/144Hz — a big, obvious jump; smoother scrolling, sharper motion, lower lag. A new image every 8.3ms or 6.9ms. The best value upgrade for most people.
• 240Hz+ — 4.2ms per frame. Smaller but real gains for competitive gaming; diminishing returns.

The jump from 60 to 120 roughly halves how long each frame sits still in front of your eyes, and that halving is what you perceive as clarity. Going from 120 to 240 halves it again — a real improvement, but you're chasing a much smaller absolute change, which is why the second upgrade feels far less dramatic than the first.

Where you'll notice it most, in order: dragging a window or scrolling a text page, fast camera movement in a first-person game, tracking a moving target, and the mouse cursor itself. Where you'll notice it least: film and most scripted TV, which are mastered at 24fps and won't look different regardless of your panel.

The catch: you must enable it

A 144Hz monitor often defaults to 60Hz. After connecting:

• Windows: Settings → System → Display → Advanced display → choose the max refresh rate.
• macOS: System Settings → Displays → Refresh Rate.

Then confirm with the Refresh Rate Test. If it reads 60 on a 144Hz panel, fix the OS setting or your cable. Our step-by-step walkthrough for both operating systems, including the cases where the option is missing entirely, is in How to Enable Your Monitor's Full Refresh Rate.

Three things that commonly keep the high option hidden:

1. You're plugged into the wrong port. On a desktop with a graphics card, the display must connect to the card, not the motherboard's video output.
2. Laptops with switchable graphics. The external port may be wired to the integrated GPU, which can cap the rate.
3. A per-game setting. Many games have their own refresh rate or "display mode" option and will run at 60Hz in borderless windowed mode even when the desktop is at 144Hz.

Frame rate vs refresh rate

Your GPU must also produce enough frames. A 144Hz screen showing a 60fps game updates at 144Hz but only shows 60 new frames — pair a high-refresh panel with adaptive sync (see our tearing guide).

Without adaptive sync, a frame rate that doesn't divide evenly into the refresh rate produces either tearing or stutter, depending on whether V-Sync is on. Confirm what you're seeing with the Screen Tearing Test: a horizontal split that slides up or down the screen is tearing, and it's a sync problem, not a panel fault.

Adaptive sync — G-Sync on Nvidia, FreeSync on AMD, and VESA Adaptive-Sync on both — makes the monitor wait for the GPU instead of the other way round. It has to be enabled in two places: the monitor's own menu, and the driver control panel. Turning it on in only one is a very common miss.

Refresh rate is not the whole story

Two more specs decide whether high refresh actually looks clean:

• Pixel response time. If the pixels can't finish changing in the time a frame is on screen, you get smeared trails behind moving objects. At 144Hz each frame lasts 6.9ms, so a slow panel simply cannot keep up. Check yours with the Ghosting Test and read What Is Ghosting and How Do You Fix It?.
• Input lag. A different thing entirely, often confused with response time — Response Time vs Input Lag separates them.

Overdrive settings interact with refresh rate too. An overdrive level that looks clean at 144Hz can produce bright inverse ghosting trails at 60Hz, so if you switch rates, re-check the setting.

For the sharpest possible motion, some monitors add backlight strobing (marketed as ULMB, DyAc, or similar). It cuts blur further than raw refresh rate can, at the cost of brightness — Motion Blur Reduction: BFI, ULMB, and Backlight Strobing covers the trade-offs.

Cable and bandwidth

High refresh at high resolution needs DisplayPort or high-speed HDMI 2.1. An old cable is a common reason the rate caps out.

Rough guidance:

| What you're driving | Usually needs | |---|---| | 1080p at 144Hz | DisplayPort, or HDMI 2.0 | | 1440p at 144Hz | DisplayPort 1.2 or better, or HDMI 2.0 | | 4K at 120Hz+ | HDMI 2.1, or DisplayPort 1.4 with DSC |

Cables are not all equal even when the connector is identical. An HDMI cable that came bundled with an older device may only be rated for HDMI 2.0 speeds, and it will happily show a picture at 60Hz while refusing 120Hz. If the high refresh option vanishes when you raise the resolution, bandwidth is the suspect — try a lower resolution to confirm before buying anything.

If the option appears, is selected, and the Refresh Rate Test still reports the old number, the change didn't stick: reselect it, unplug and replug the cable, and check that no docking station or KVM sits in the path — those cap bandwidth more often than the cable does.