Mouse Polling Rate

What Mouse Polling Rate Means

Polling rate is how often your mouse tells the computer where it is, measured in hertz. A 125 Hz mouse reports its position 125 times a second — once every 8 milliseconds. A 1000 Hz mouse reports 1000 times a second — once every millisecond. The higher the rate, the more frequently the cursor's position is updated, and the smoother and more immediate fast movements feel. This tester measures the real rate your mouse is achieving right now, by timing the gap between the position updates your system actually receives.

The test runs in the browser with nothing to install. Move the mouse continuously in small circles and the tool samples how often fresh position data arrives, converting the interval into a live Hz reading. Keep moving for a few seconds to let the average settle — a stationary mouse sends nothing, so the rate only registers while you're moving.

Reports Arriving Over Time

The difference between polling rates is really a difference in spacing. At a low rate, updates arrive in widely spaced pulses; at a high rate, they stream in tightly packed. The same mouse movement is described in far more detail at 1000 Hz than at 125 Hz.

Polling Rate in Plain Terms

What Affects Your Real Rate

Like controllers, mice rarely hit their headline number perfectly in every situation. A few factors set the rate you actually get.

• Connection: wired USB and modern proprietary wireless dongles hit full rate; older or budget Bluetooth often caps lower and less consistently.
• Driver software: many gaming mice let you select 125, 500, 1000, or higher in their software — the tester shows whether the selected rate is actually being delivered.
• USB port and hub: a port shared through a hub can drop the effective rate; a direct motherboard port is most reliable.
• Browser sampling: a browser reads mouse events on its own loop, so an in-browser figure can read slightly below the hardware's true rate, especially above 1000 Hz.
• CPU load: heavy background load can starve the polling loop and introduce variance you'll see as an unstable rate.

How to Measure Accurately

• Use a wired connection if you can, to see the mouse's true ceiling without wireless scheduling in the way.
• Move the mouse in continuous small circles — steady motion gives the cleanest sample. Stopping pauses the readings.
• Let the average settle over several seconds rather than reading the first number that appears.
• Close heavy background apps so CPU load doesn't add false variance.
• If the rate reads below what you selected in your mouse software, try a direct USB port and re-test before assuming a fault.

Polling rate is only one half of mouse responsiveness — the other is DPI, which sets how far the cursor travels. Measure that with the DPI Analyzer. While you're checking the mouse, the Click Speed Test measures your clicks per second, the Double Click Test catches a failing switch, and the Mouse Button Check confirms every button registers.

Frequently Asked Questions