Explanation
The frequency at which the display updates, expressed in Hertz (90 Hz, 120 Hz...).
Real-world example
A 120 Hz screen refreshes 120 times per second for smoother visuals.
Practical applications
- Visual fluidity: the higher the refresh rate, the smoother the motion
- VR comfort: a high rate reduces the risk of motion sickness
- Responsiveness: faster response to head movements
- Perceived quality: a sense of naturalness and presence
Refresh rates in VR
72 Hz (minimum acceptable)
- Baseline threshold for VR
- Sufficient for calm experiences
- May cause discomfort during fast movements
Example: Quest 2 in power-saving mode
90 Hz (standard)
- VR industry standard
- Good balance of comfort and performance
- Suitable for the majority of users
Example: Quest 3 by default, PSVR2
120 Hz+ (premium)
- Maximum fluidity
- Ideal for fast-paced games and sensitive users
- Requires more computing power
Example: Quest 3 in 120 Hz mode, Valve Index
VR scenario
For a flight simulator where head movements are fast and frequent, the developer configures the application at 120 Hz. Result: zero blur sensation, ultra-responsive tracking, and sustained comfort even for the most demanding pilots.
Why it matters in professional VR
- Refresh rate directly impacts comfort and experience quality
- Ensure the application is optimized to maintain the target framerate
- A trade-off must be found between refresh rate and graphical quality depending on the hardware