What Is FPS (Frames Per Second)?
FPS, or Frames Per Second, measures how smoothly your computer renders visual content. Each frame is a complete image drawn by your graphics hardware — more frames per second means smoother, more responsive visuals.
For gaming, FPS directly impacts experience. At 30 FPS, motion is choppy. At 60 FPS — the standard target — it becomes smooth. Competitive players push for 144+ FPS where every millisecond matters.
Frame time consistency matters as much as raw FPS. A steady 60 FPS with consistent 16.67ms frames feels smoother than 80 FPS average with frequent spikes.
How This Advanced Benchmark Works
This isn't a simple counter. The FPS Benchmark Pro engine captures precise frame delivery timestamps via requestAnimationFrame and computes:
- Real-time FPS — sampled every 500ms for accuracy
- 1% Low & 0.1% Low — reveals micro-stutters competitive gamers care about
- Performance Score — composite metric combining FPS, stability, and jitter (0–999)
- Stability % — frames delivered within 20% of average frame time
- Jitter — standard deviation of frame times (lower = smoother)
- Dropped Frame Detection — frames exceeding 2× average delivery time
- System Detection — auto-detects GPU, CPU cores, RAM, refresh rate
Understanding Your Results
| FPS | Rating | Experience |
|---|---|---|
| 144+ | ⚡ Ultra | Exceptional for high-refresh displays |
| 120–144 | ✦ Excellent | Outstanding competitive gaming |
| 60–120 | ● Smooth | Standard 60Hz target |
| 45–60 | ▲ Good | Acceptable, minor dips |
| 30–45 | ◆ Playable | Noticeable choppiness |
| <30 | ▼ Poor/Critical | Laggy, investigate issues |
Frequently Asked Questions
What is a good FPS?
60 FPS baseline, 144+ for competitive gaming on high-refresh monitors.
Why is my FPS capped at 60?
VSync caps FPS to monitor refresh rate. Disable it to see true capability.
What is the Performance Score?
A composite 0–999 metric factoring average FPS, stability, and jitter. 600+ is excellent.
What is Jitter?
Standard deviation of frame times. Under 2ms = buttery smooth performance.
What are 1% Low and 0.1% Low?
Worst 1% and 0.1% of FPS samples. Reveals stutters hidden by averages.
Is browser FPS the same as game FPS?
No — browser FPS measures rendering performance, not GPU gaming output. But low browser FPS indicates system issues.