Ryzen 5 9600X + RTX 5080 in Kingdom Come: Deliverance II

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, upscaling disabled. CPU ceiling measured at 1080p, highest settings (TechPowerUp CPU suite), RTX 5090.

1080p173–173 fps · Balanced pairing 1440p142–142 fps · Mild GPU limit 4K80–80 fps · Strong GPU limit

1080p

Balanced pairing

Expected frame rate: 173–173 fps (measured range across sources).

CPU Ryzen 5 9600Xceiling ~173 fps on its own

GPU RTX 5080ceiling ~193 fps on its own

The two measured ceilings sit within 10.4% of each other — neither part wastes much of the other.

That range feeds a 165 Hz or faster monitor — this is high-refresh territory in this game.

Confidence: MEDIUM — based on 2 source measurements for these two parts.

1440p

Mild GPU limit

Expected frame rate: 142–142 fps (measured range across sources).

CPU Ryzen 5 9600Xceiling ~173 fps on its own

GPU RTX 5080ceiling ~142 fps on its own

The GPU side is lower by about 17.6%: the pair runs at the lower ceiling, and upgrading the other part alone would not raise it.

That range justifies a 144 Hz monitor in this game.

Confidence: MEDIUM — based on 2 source measurements for these two parts.

4K

Strong GPU limit

Expected frame rate: 80–80 fps (measured range across sources).

CPU Ryzen 5 9600Xceiling ~173 fps on its own

GPU RTX 5080ceiling ~80 fps on its own

The GPU side is lower by about 53.9%: 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: MEDIUM — based on 2 source measurements for these two parts.

GPUs measured in this game at 1440p that clear this CPU:

RTX 5090 — ceiling ~186 fps (smallest step that removes the limit) · 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 — Mild CPU limit, 99–99 fps at 1440p
Elden Ring — this pair is not both measured there yet.
Marvel's Spider-Man 2 — Balanced, 139–139 fps at 1440p
S.T.A.L.K.E.R. 2 — this pair is not both measured there yet.
Starfield — Mild GPU limit, 101–101 fps at 1440p

Sources for Kingdom Come: Deliverance II

TechPowerUp

Full data: Kingdom Come: Deliverance II benchmarks · how verdicts are computed.