What the gaming FPS calculator estimates and when to use it
Frames per second, or FPS, tells you how many images your graphics card draws each second. Higher FPS makes motion look smoother and reduces input delay. This calculator gives a quick planning estimate for six popular graphics cards at three resolutions (1080p, 1440p and 4K) and four quality presets (Low, Medium, High and Ultra). It reports the estimated FPS, the time to draw each frame in milliseconds, and a performance tier describing how the result feels in play.
It is meant for early decisions: whether a card is likely to suit a 1440p monitor, or how much you might gain by lowering settings. Because every game behaves differently, the figures are typical averages derived from relative card performance, not benchmarks. Real FPS also depends on the processor, memory, drivers, the particular game and whether upscaling or ray tracing is on, so use the estimate for comparison and confirm with reviews for the specific title.
How the estimate is calculated
The calculator starts with an approximate average FPS for each card at 1080p and Ultra settings, then applies two multipliers.
- Base FPS at 1080p Ultra: RTX 4090 = 165, RTX 4080 = 135, RTX 4070 = 105, RTX 3090 = 115, RTX 3080 = 100, RX 7900 XT = 120.
- Resolution factor: 1080p = 1.00, 1440p = 0.70, 4K = 0.45, reflecting the greater pixel count.
- Settings factor: Low = 1.35, Medium = 1.18, High = 1.05, Ultra = 1.00.
- Estimated FPS = base × resolution factor × settings factor, rounded. Frame time (ms) = 1000 / FPS.
Tiers are: 144 FPS or more is excellent, 90 to 143 very good, 60 to 89 good, 30 to 59 playable, and below 30 poor.
Worked example: RTX 4070 at 1440p, High settings
- Base FPS: 105.
- Resolution factor 0.70 gives 105 × 0.70 = 73.5.
- Settings factor 1.05 gives 73.5 × 1.05 = 77.175, which rounds to 77 FPS.
- Frame time: 1000 / 77 = 13.0 ms.
- Tier: 77 falls in the 60 to 89 band, so the result reads “Good”.
Switching the same card to 4K on Ultra gives 105 × 0.45 × 1.00 = 47.25, about 47 FPS, which lands in the Playable tier.
Common mistakes and how to interpret the result
- Reading the number as a benchmark. Individual games can run 30 percent or more above or below an average. Check reviews for the exact game you play.
- Ignoring the CPU. At 1080p the processor often limits FPS before the graphics card does.
- Focusing on average FPS alone. Smoothness also depends on frame-time consistency. The 1% lows matter as much as the average.
- Forgetting the monitor. A 60 Hz screen cannot show more than 60 frames per second, so paying for higher FPS only helps with a higher refresh rate display.
Frequently Asked Questions
Why is frame time shown as well as FPS?
How accurate are the estimates?
Does the calculator include DLSS or FSR upscaling?
What FPS should I aim for?
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