90Hz Test – Check Your Monitor Runs at 90Hz (11.11 ms Frame Time)

90Hz Refresh Rate Test

Check whether your display is really running at 90Hz, and see what 90Hz means in frame time and smoothness.

A 90Hz display refreshes 90 times per second, showing a new frame every 11.11 ms, 1.5× as often as a 60Hz screen.

Current FPS

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Frames in the last second

Refresh rate

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Nearest standard rate

Average FPS

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Since the test started

1% low FPS

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Slowest 1% of frames

Frame time

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Typical (median)

Jitter

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Lower is smoother

Dropped frames

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Frames that arrived late

Frames

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Measured so far

FPS over the last 10 seconds. The dashed line is your refresh rate; red marks are dropped frames.

Speed

Stress test: 0 moving marbles

Adds drawing work to every frame. Raise it until the FPS drops to see how much your device can draw at full speed.

90Hz in numbers

Refreshes per second	90
Time per frame	11.11 ms
Compared with 60Hz	1.50× as many frames, 5.56 ms less per frame
FPS needed to use every refresh	90
Half-rate V-Sync cap	45 FPS

Is 90Hz good?

Yes, as a modest step up from 60Hz. Scrolling and motion look noticeably smoother, though competitive players usually aim for 144Hz or more.

You'll find 90Hz on many Android phones and some VR headsets.

Getting a steady 90Hz

Choose 90Hz in your operating system's display settings; many monitors ship set to 60Hz.
Use a cable and port with enough bandwidth. High refresh rates at high resolutions usually need DisplayPort or HDMI 2.1.
In games, aim for at least 90 FPS, or turn on G-Sync/FreeSync so lower frame rates still look smooth.
Run the test above: the refresh rate box should read 90 Hz with low jitter.

Other refresh rates

Refresh rate	Frame time	vs 60Hz
60Hz	16.67 ms	1.00×
75Hz	13.33 ms	1.25×
90Hz	11.11 ms	1.50×
100Hz	10.00 ms	1.67×
120Hz	8.33 ms	2.00×
144Hz	6.94 ms	2.40×
165Hz	6.06 ms	2.75×
180Hz	5.56 ms	3.00×
240Hz	4.17 ms	4.00×
360Hz	2.78 ms	6.00×
480Hz	2.08 ms	8.00×

Frequently asked questions

What is the frame time at 90Hz?

At 90Hz a new frame appears every 11.11 ms (1000 ÷ 90).

Is 90Hz good for gaming?

Yes, as a modest step up from 60Hz. Scrolling and motion look noticeably smoother, though competitive players usually aim for 144Hz or more.

How many FPS do I need for 90Hz?

To use every refresh, your game should render at least 90 frames per second. Below that, the monitor shows some frames twice; variable refresh rate (G-Sync or FreeSync) keeps that smooth.

How do I check if my monitor is running at 90Hz?

Run the test on this page: the "Refresh rate" box shows the rate your display is actually using. If it reads lower than 90Hz, select 90Hz in your display settings and check that your cable supports it.