Mouse Polling Rate Test (Hz)
High-precision USB report rate benchmark (125Hz, 500Hz, 1000Hz, 4000Hz, 8000Hz). Utilizes raw hardware coalesced events to bypass browser VSync limits for true polling frequency measurement.
Optical mouse sensors only send USB reports when physical movement is detected. If you move slowly, the mouse sends fewer reports than its hardware limit. Move the mouse rapidly in large circles across the pad to saturate the USB polling frequency (e.g. 500Hz or 1000Hz).
How to Use This Test
- Move your mouse continuously in quick, wide circles inside the tracking zone.
- Maintain rapid circular motion for 3–5 seconds to saturate your USB report buffer.
- Check the Peak Polling Rate and Rated Standard (e.g. 125Hz, 500Hz, or 1000Hz).
- Observe the Average Delay metric: at 1000Hz, updates arrive every 1.0 ms.
Common Polling Rates Compared
- 125 Hz (8.0 ms delay): Standard for basic office mice and standard Bluetooth wireless connections.
- 500 Hz (2.0 ms delay): Excellent responsiveness with minimal CPU overhead.
- 1000 Hz (1.0 ms delay): Standard for esports and competitive gaming mice.
- 4000 – 8000 Hz (0.125 ms): Ultra-high polling for 240Hz+ monitors (requires a powerful modern CPU).
Why Bluetooth Drops to 125Hz or 133Hz
Standard Bluetooth HID profiles are bandwidth-limited and cap transmission at around 125–133 Hz to save battery. For true 1000Hz wireless polling, gaming mice use proprietary 2.4GHz USB wireless dongles (like Razer HyperSpeed or Logitech LIGHTSPEED) instead of Bluetooth.
Why High Polling Rates Can Cause Game Stutter
At 4000Hz or 8000Hz, your mouse sends thousands of hardware interrupts to your CPU every second. In older games or with older quad-core processors, this high interrupt load can cause sudden in-game frame rate drops. If you experience FPS drops when moving your mouse in games, setting polling rate to 1000Hz resolves it.