Crusader Kings III on Arc B580

Well above recommendedEstimate · medium confidence, ±20%

Yes. The Arc B580 is well above Crusader Kings III's recommended spec. We estimate ~154 fps at 1080p high (range 123–184, medium confidence, ±20%), GPU-limited. At 1440p high expect ~108 fps, so every preset holds 60 fps. Model estimate, not measured; data updated 2026-09-24.

Estimated FPS by preset

Preset	1080p	1440p	4K
low	261	183	110
medium	200	140	84
high	154	108	65
ultra	123	86	52

Estimate · medium confidence, ±20%

Estimated FPS from our model (v0), based on the game's published requirements and relative GPU/CPU performance. Not measured. Real results vary with drivers, patches, and scenes. Values above 300 fps show as 300+. Data updated 2026-09-24.

Best settings

60 fps at 1080p: ultra preset
60 fps at 1440p: ultra preset
144 fps at 1080p: high preset

Intel Arc card: use XeSS (native on Arc) or FSR in quality mode before dropping the preset. DLSS is not available.

What limits performance

Estimates above: GPU-limited, assuming a processor fast enough not to hold the Arc B580 back.
Processor needed for ~154 fps: Ryzen 7 5800X or faster (slowest current desktop CPU our model expects to keep up).
With the recommended CPU (Core i5-8400): CPU-limited at 1080p high: about 90 fps instead of 154.

Video memory

Arc B580: 12 GB
The publisher lists no video memory requirement.

Crusader Kings III on popular graphics cards (high preset)

Graphics card	1080p	1440p	vs Arc B580
GeForce GTX 1650	48	34	-69%
GeForce GTX 1060 6GB	67	47	-56%
GeForce RTX 2060 6GB	101	71	-34%
Radeon RX 6600	110	77	-28%
GeForce RTX 3060 12GB	120	84	-22%
GeForce RTX 4060 Laptop GPU	125	87	-19%
Radeon RX 7600	139	97	-9%
GeForce RTX 4060	142	99	-8%
Arc B580	154	108	—
GeForce RTX 3070	166	116	+8%
GeForce RTX 4070	209	146	+36%
Radeon RX 7800 XT	233	163	+52%
GeForce RTX 5070	240	168	+56%
Radeon RX 9070 XT	300+	218	+103%
GeForce RTX 4080	300+	227	+111%
GeForce RTX 5090	300+	300+	+236%