Ryzen 5 5600 + RTX 4090 in Starfield

Every figure below is a measurement aggregated from published review charts — the CPU's frame-rate ceiling and the GPU's frame-rate ceiling in this game, combined. Settings: Ultra preset, native rendering, no upscaling, no frame generation. CPU ceiling measured at 1080p, Low preset (reviewers' CPU-isolation method), flagship GPU.

1080p77–77 fps · Mild CPU limit 1440p77–77 fps · Mild CPU limit 4K54–77 fps · Balanced pairing

1080p

Mild CPU limit

Expected frame rate: 77–77 fps (measured range across sources).

CPU Ryzen 5 5600ceiling ~77 fps on its own

GPU RTX 4090ceiling ~93–131 fps on its own

The CPU side is lower by about 30.9%: the pair runs at the lower ceiling, and upgrading the other part alone would not raise it.

That range suits a 60 Hz monitor; a high-refresh panel would be underused in this game.

Confidence: LOW — based on 3 source measurements for these two parts.

1440p

Mild CPU limit

Expected frame rate: 77–77 fps (measured range across sources).

CPU Ryzen 5 5600ceiling ~77 fps on its own

GPU RTX 4090ceiling ~78–114 fps on its own

The CPU side is lower by about 19.4%: the pair runs at the lower ceiling, and upgrading the other part alone would not raise it.

That range suits a 60 Hz monitor; a high-refresh panel would be underused in this game.

Confidence: LOW — based on 3 source measurements for these two parts.

4K

Balanced pairing

Expected frame rate: 54–77 fps (measured range across sources).

CPU Ryzen 5 5600ceiling ~77 fps on its own

GPU RTX 4090ceiling ~54–84 fps on its own

The two measured ceilings sit within 11.0% of each other — neither part wastes much of the other.

That range suits a 60 Hz monitor; a high-refresh panel would be underused in this game.

Confidence: LOW — based on 3 source measurements for these two parts.

CPUs measured in this game that clear this GPU:

Ryzen 5 3600 — ceiling ~66–82 fps (smallest step that removes the limit) · full result
Ryzen 7 9850X3D — ceiling ~199 fps (strongest measured) · full result

This pair in other measured games

Alan Wake 2 — this pair is not both measured there yet.
Baldur's Gate 3 — this pair is not both measured there yet.
Counter-Strike 2 — this pair is not both measured there yet.
Cyberpunk 2077 — this pair is not both measured there yet.
Elden Ring — this pair is not both measured there yet.
Kingdom Come: Deliverance II — this pair is not both measured there yet.
Marvel's Spider-Man 2 — this pair is not both measured there yet.
S.T.A.L.K.E.R. 2 — this pair is not both measured there yet.

Sources for Starfield

Full data: Starfield benchmarks · how verdicts are computed.