Resolution planning tool

Resolution Pixel-Load Calculator

Compare the pixels rendered per frame at common display resolutions. Pixel count does not predict FPS by itself, but it provides the correct baseline for understanding why higher native resolutions usually increase GPU work.

Live comparison

Compare pixels rendered per frame

Select a baseline and target resolution to calculate the relative pixel count.

BaselineTarget

1.78× the pixels1.61 million additional pixels per frame

Pixel count is a workload baseline, not an FPS prediction.

How resolution pixel load is calculated

Multiply width by height

Multiply horizontal pixels by vertical pixels to get pixels per frame. Full HD contains 2,073,600 pixels, 2560 by 1440 contains 3,686,400, and 3840 by 2160 contains 8,294,400. Dividing the target count by the baseline produces the relative pixel-load figure shown above.

Moving from 1080p to 1440p creates 1.78 times as many pixels. Moving from 1080p to native 4K creates four times as many. Performance does not fall by the inverse of those ratios because geometry, CPU work, caches, bandwidth, settings and software scaling do not all change linearly.

Internal resolution can differ from display resolution

Record the render scale

Upscaling and dynamic-resolution systems render at a lower internal resolution before reconstructing the display image. Record the quality mode, render scale and whether dynamic adjustment is enabled. Frame generation also changes displayed frame count without reducing base-frame latency or CPU work in the same proportion.

Keep graphics settings and scene complexity constant.
Compare GPU utilization, clocks, frame time and VRAM together.
Use native-resolution captures when isolating pixel-load effects.
Do not transfer a result between different upscaling modes without qualification.

Connect pixel load to the intended refresh target

Pair resolution with frame rate

A 4K 60 FPS target and a 1080p 240 FPS target stress different stages. Resolution primarily changes graphics work per frame, while a higher frame target reduces the time available for CPU preparation and total delivery. Use the scenario calculator after this geometric comparison, then validate inside the software that matters.

Continue from the result

Use the result as a starting point. Choose the next resource that matches what you want to measure or understand.

Resolution Bottleneck GuideLearn when additional pixels move pressure toward the graphics card. PC Bottlenecks at 1440pSee how QHD changes CPU and GPU balance at different frame targets. GPU Bottleneck GuideSeparate rendering throughput, graphics settings and VRAM pressure. Reviewed GPU ProfilesCompare graphics-card context for 1080p, 1440p and 4K targets. All PC Performance ToolsCompare resolution load, frame budgets and CPU-GPU balance.