Frame-budget calculator

An educational estimator — not a replacement for RenderDoc, PIX, Nsight or real device measurements.

Target FPS 60ResolutionCPU frame time (ms) 9GPU frame time (ms) 12Draw calls 2500Objects 4000Triangles (millions) 6Culling ratio (%) 55Overdraw estimate (×) 2.2

16.67 ms per frame

CPU 9.0 ms · headroom 7.7 ms

GPU 12.0 ms · headroom 4.7 ms

Amber line = budget

Visible objects: 1,800
Triangles after culling: 2.70 M (−55%)
Pixels shaded: 4.6 M / frame
Draws per ms of CPU: 278

Likely bottleneck

Within budget

Confirm it: halve the resolution — if GPU time drops a lot you're pixel-bound; if frame time doesn't move, look at the CPU.