FPS Calculator
Estimate your frames per second based on screen resolution and GPU benchmark score.
Find out if your hardware can handle your favorite games.
Frames per second (FPS) measures how many individual images your GPU renders and displays each second. Higher FPS means smoother motion, lower input lag, and a more responsive gaming experience. The formula connects hardware capability, display technology, and game settings.
Formulas: Effective FPS = Min(GPU FPS Output, Monitor Refresh Rate) (without G-Sync/FreeSync) Frame Time (ms) = 1000 ÷ FPS GPU Load % ≈ (Target Resolution × Settings Multiplier) ÷ GPU Performance Index
Frame time and why it matters: Average FPS alone doesn’t tell the full story. Frame time consistency is equally important. If your average is 60 FPS but frame times spike from 8ms to 50ms, you’ll feel stutters even though the average looks fine.
| FPS | Frame Time | Feel |
|---|---|---|
| 30 FPS | 33.3 ms | Cinematic; acceptable for slow games |
| 60 FPS | 16.7 ms | Smooth; standard for most players |
| 120 FPS | 8.3 ms | Very smooth; noticeable improvement |
| 144 FPS | 6.9 ms | Competitive gaming sweet spot |
| 240 FPS | 4.2 ms | Pro competitive play |
Resolution impact on FPS (relative GPU load):
- 1080p = baseline (1.0×)
- 1440p = approximately 1.78× more pixels → ~44% FPS reduction vs. 1080p
- 4K = 4× more pixels → ~75% FPS reduction vs. 1080p
Worked example: At 1080p with High settings, your GPU renders 144 FPS in a shooter. Upgrading to 1440p: Expected FPS ≈ 144 ÷ 1.78 = ~81 FPS at the same settings.
To get 144 FPS at 1440p, you need a GPU roughly 1.78× more powerful than your current one.
Display sync technologies:
- V-Sync: Caps FPS to monitor refresh rate, eliminates screen tearing, but adds input lag.
- G-Sync / FreeSync: Dynamically matches monitor refresh to GPU output — best of both worlds.
- Cap your FPS 5–10 below the monitor’s max refresh rate for G-Sync/FreeSync to keep the GPU just under load, preventing VRR from dropping out.
Input lag formula: Total input lag ≈ Frame Time + Display Response Time + Processing Delay. At 60 FPS (16.7ms frame time) + 5ms display + 2ms processing = ~24ms total input lag.