Datafrog S80

Latency

This chart shows how quickly your gamepad responds to button presses as well as joystick deviation. Each point on the graph represents a test result.

• The horizontal axis (X-axis) measures the time elapsed from the button press or stick deflection to the game's response. This time is called “latency”.
• The vertical axis (Y-axis) shows how often we got such a result, in percentages.

If you hover over a point on the graph, you'll see how long the latency was and how often it occurred.

The lower the latency, the better. In a perfect world, as soon as you press a button or move the joystick on a gamepad, the action in the game happens instantly. If there is a long delay, you can press the button, but the action will take some time. In fast-paced games where every second counts, a long delay can be a problem.

Use this chart to figure out how fast your gamepad reacts.

Polling rate

The polling rate (also known as the Refresh intervals) in gamepads refers to how often the controller sends input information to the console or computer. It's measured in Hertz (Hz), which translates to the number of times per second the device reports its status to the computer.

For example, a gamepad with a polling rate of 125 Hz sends its status to the computer 125 times per second, or every 8 milliseconds.

The polling rate is essential in gaming for two reasons:

1. Responsiveness: A higher polling rate means the controller communicates its state to the computer more frequently, resulting in faster and more responsive gameplay. In fast-paced or competitive games, even a slight increase in responsiveness can give players an advantage.

2. Accuracy: A higher polling rate can also increase the accuracy of the controller. This is particularly important for devices like gaming mice, where precise movements can be critical, but it can also impact gamepads, especially in games that require accurate inputs.

However, it's important to note that a higher polling rate can also put more strain on the computer's CPU, as it needs to process inputs more frequently. Moreover, beyond a certain point, increases in polling rate may not yield noticeable improvements due to limitations in human reaction time and display refresh rates.

Jitter

Jitter is a measure of how much the gamepad's latency varies during testing. It is calculated as the standard deviation of the recorded delay times. A lower jitter value indicates more consistent latency, while a higher jitter suggests unstable performance. Low jitter is important for a smooth, responsive gaming experience.