Ryzen 5 5600X + Arc B580 in Kingdom Come: Deliverance II

Every figure below is a measurement aggregated from published review charts — the CPU's frame-rate ceiling and the frame rate the GPU delivers in this game, combined. The CPU figure is the highest frame rate that CPU sustained in this game with a flagship GPU installed — past that frame rate, the CPU is the limit. Settings: Ultra preset, upscaling disabled. CPU ceiling measured at 1080p, highest settings (TechPowerUp CPU suite), RTX 5090; Ryzen 5 5600X from Gamers Nexus at its Medium CPU-isolation preset.

1080p79–79 fps · Strong GPU limit 1440p56–56 fps · Strong GPU limit 4K32–32 fps · Strong GPU limit

1080p

Strong GPU limit

Expected frame rate: 79–79 fps (measured range across sources).

CPU Ryzen 5 5600Xceiling ~172 fps on its own

GPU Arc B580delivers ~79 fps in this game at 1080p

The GPU side is lower by about 54.3% in this game at 1080p. The math, from the two measured figures above: the pair runs at the lower one (~79 fps), and the gap to the faster side is (172 − 79) ÷ 172 ≈ 54.3% of the faster side's output. That percentage belongs to this game, this resolution and these settings only — the same two parts score differently in another game, which is why no universal bottleneck percentage exists for a pair of parts. Upgrading the faster part alone would not raise the frame rate.

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.

1440p

Strong GPU limit

Expected frame rate: 56–56 fps (measured range across sources).

CPU Ryzen 5 5600Xceiling ~172 fps on its own

GPU Arc B580delivers ~56 fps in this game at 1440p

The GPU side is lower by about 67.2% in this game at 1440p. The math, from the two measured figures above: the pair runs at the lower one (~56 fps), and the gap to the faster side is (172 − 56) ÷ 172 ≈ 67.2% of the faster side's output. That percentage belongs to this game, this resolution and these settings only — the same two parts score differently in another game, which is why no universal bottleneck percentage exists for a pair of parts. Upgrading the faster part alone would not raise the frame rate.

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.

4K

Strong GPU limit

Expected frame rate: 32–32 fps (measured range across sources).

CPU Ryzen 5 5600Xceiling ~172 fps on its own

GPU Arc B580delivers ~32 fps in this game at 4K

The GPU side is lower by about 81.5% in this game at 4K. The math, from the two measured figures above: the pair runs at the lower one (~32 fps), and the gap to the faster side is (172 − 32) ÷ 172 ≈ 81.5% of the faster side's output. That percentage belongs to this game, this resolution and these settings only — the same two parts score differently in another game, which is why no universal bottleneck percentage exists for a pair of parts. Upgrading the faster part alone would not raise the frame rate.

That range sits under a smooth 60 in this game at the tested preset — expect to trade settings for frame rate.

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

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

RTX 5090 — delivers ~186 fps (smallest step that removes the limit) · full result

This pair in other games

Alan Wake 2 — this pair has no measured or estimated figure there yet.
Baldur's Gate 3 — only your CPU has a figure there so far.
Counter-Strike 2 — Strong GPU limit, 125–125 fps at 1440p
Cyberpunk 2077 — only your CPU has a figure there so far.
Elden Ring — this pair has no measured or estimated figure there yet.
Marvel's Spider-Man 2 — Strong GPU limit, 28–28 fps at 1440p
S.T.A.L.K.E.R. 2 — this pair has no measured or estimated figure there yet.
Starfield — only your CPU has a figure there so far.

Sources for Kingdom Come: Deliverance II

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