What is a CPU and GPU bottleneck?

A bottleneck means one part limits the other. If your processor can only prepare, say, 90 FPS worth of frames, a faster graphics card cannot go beyond that, and the opposite at high resolution. This tool runs our FPS model across real modern games to show which part holds your pairing back.

Is a GPU bottleneck bad?

No. At 1440p and 4K you want the graphics card to be the limiting part, that means the rest of your PC is not wasting its power. A CPU bottleneck at 1080p is the one worth fixing.

Bottleneck calculator: is your CPU and GPU a good match?

By chicksaw, independent project · FPS model checked against 1,579 measured benchmarks in 106 games · How we estimate FPS

Enter your processor and graphics card to see which one limits the other, tested across real modern games at your resolution, and the cheapest upgrade that actually helps.

Not sure what you have?

Windows: press Ctrl + Shift + Esc, open “Performance”: “CPU” shows the processor name at the top right, “GPU” the graphics card. Processors are AMD Ryzen or Intel Core (i3/i5/i7/i9, Core Ultra). Graphics cards named RTX or GTX are NVIDIA GeForce, RX is AMD Radeon, Arc is Intel.

No bottleneck: the graphics card sets the pace, as it should

In 16 of 16 tested games at 1080p, the graphics card sets the frame rate. That is the normal case: your processor is not wasting the card and there is no bottleneck to fix. Average estimated FPS: 68.

No upgrade needed for this pairing at this resolution. A faster graphics card only makes sense if the current frame rates are not enough for you.

How this calculator works

Most bottleneck calculators show one invented percentage. This one runs our own FPS model across 16 real, requirement-backed modern games at the resolution you pick, compares what each part could do on its own, and reports the typical result. It is an estimate, not a benchmark.

How we estimate FPS → · Graphics cards · Processors ranked · Stats

Frequently asked questions

What is a CPU and GPU bottleneck?: A bottleneck means one part limits the other. If your processor can only prepare, say, 90 FPS worth of frames, a faster graphics card cannot go beyond that, and the opposite at high resolution. This tool runs our FPS model across real modern games to show which part holds your pairing back.
Is a GPU bottleneck bad?: No. At 1440p and 4K you want the graphics card to be the limiting part, that means the rest of your PC is not wasting its power. A CPU bottleneck at 1080p is the one worth fixing.