Gaming FPS Performance Calculator
Estimates your in-game FPS based on GPU benchmark scores, resolution, graphics settings, and ray tracing. Use it before upgrading hardware or adjusting settings to maximize frame rate.
About this calculator
This calculator applies a multi-factor scaling model to predict FPS across different configurations. The formula is: FPS = round(baseFps × resolution^0.3 × settings^0.4 × rayTracing^0.5). baseFps is your GPU's measured frame rate at 1080p Medium — a common benchmark reference. Each additional factor is a dimensionless scalar less than or equal to 1.0, representing the performance penalty imposed by higher resolution, heavier graphical settings, and ray tracing workloads. The exponents reflect the relative GPU cost of each parameter: settings changes have a moderate impact (0.4), resolution a lesser one (0.3), and ray tracing the heaviest because it scales with pixel count and BVH traversal cost (0.5). Lower scalars mean heavier penalties and fewer output frames.
How to use
Suppose your GPU scores 120 FPS at 1080p Medium. You want to run at 1440p (resolution scalar = 0.85), Ultra settings (settings scalar = 0.70), and no ray tracing (rayTracing scalar = 1.0). Step 1 — Resolution factor: 0.85^0.3 ≈ 0.951. Step 2 — Settings factor: 0.70^0.4 ≈ 0.868. Step 3 — Ray tracing factor: 1.0^0.5 = 1.0. Step 4 — Multiply: 120 × 0.951 × 0.868 × 1.0 ≈ 99 FPS. Enabling ray tracing at a scalar of 0.60 would drop that to: 0.60^0.5 ≈ 0.775, giving roughly 77 FPS.
Frequently asked questions
How much does changing from 1080p to 4K resolution reduce gaming FPS performance?
Moving from 1080p to 4K increases pixel count by 4×, which places a much heavier burden on the GPU's rasterization and memory bandwidth. In practice, most mid-range GPUs lose 50–70% of their frame rate when jumping to 4K without DLSS or FSR upscaling. This calculator models that penalty through the resolution scalar raised to the 0.3 power, giving a smoother relative estimate across a range of resolutions. Upscaling technologies like DLSS 3 or AMD FSR 3 can recover much of this loss by rendering at a lower internal resolution and reconstructing the image.
Why does ray tracing reduce FPS so dramatically even on high-end GPUs?
Ray tracing simulates physically accurate light behavior by tracing millions of individual light rays per frame through a 3D scene, a process far more computationally intensive than traditional rasterization. Even dedicated RT cores on NVIDIA RTX or AMD RDNA 3 GPUs are taxed heavily, especially at higher resolutions where the RT workload scales quadratically. The 0.5 exponent in this formula reflects the steep penalty ray tracing imposes relative to other settings. Using ray tracing at medium quality instead of ultra, or combining it with DLSS Frame Generation, can make it viable without sacrificing playability.
What is a good target FPS for competitive gaming versus single-player games?
For competitive multiplayer titles like CS2, Valorant, or Apex Legends, most players target 144 FPS or higher to take advantage of high-refresh-rate monitors, which measurably reduce input latency and motion blur. Single-player narrative games are generally comfortable at 60 FPS, where visual fidelity settings can be maxed out instead. Cinematic games are sometimes intentionally capped at 30 FPS on consoles for a 'filmic' feel, though PC players almost universally prefer uncapped. The ideal FPS target should always match your monitor's refresh rate — running 200 FPS on a 60 Hz panel wastes GPU resources.