Yes, runs great. About 300+ fps on High at 1080p with a processor that does not limit the card. Add your own processor and memory to sharpen the answer.
Runs great · Crusader Kings III
Expect smooth play on High or better at 1080p.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 300+ | 300+ | 300+ | 221 |
| 1440p | 300+ | 300+ | 221 | 159 |
| 4K | 233 | 172 | 123 | 88 |
Average frames per second. 60 or more feels smooth. These are estimates; real results vary by scene, drivers and game version.
| Minimum | Recommended | |
|---|---|---|
| Processor | Intel Core i5-750 | AMD FX 4300 | Intel Core i5-8400 | AMD Ryzen 5 1600X |
| Graphics | NVIDIA GeForce GTX 660 | AMD Radeon HD 7870 | Intel Arc A310 | Intel Iris Plus G7 | AMD Radeon Vega 11 | NVIDIA GeForce GTX 970 | AMD Radeon RX 480 | Intel Arc A580 |
| Memory | 8 GB | 16 GB |
| Storage | 20 GB | 20 GB |
Requirements from the game’s Steam page.
Updated October 3, 2026
Estimated average fps by resolution and preset.
Our estimate puts the GeForce RTX 3080 at about 300+ fps on High at 1080p in Crusader Kings III, which means it runs comfortably. On Low the same card manages about 300+ fps, and on Ultra about 221.
The graphics card is the limit here, so lowering the resolution or the quality preset is what raises your frame rate.
For a steady 60 fps, our estimate says: 1080p: Ultra (about 221 fps); 1440p: Ultra (about 159 fps); 4K: Ultra (about 88 fps).
Crusader Kings III lists 8 GB of RAM (recommending 16 GB) and a processor of the Intel Core i5-8400 class. Our estimate assumes a processor that does not limit the GeForce RTX 3080, so enter yours in the checker above if it is older than that.
For reference, the next card up in our list, the GeForce RTX 5070, is estimated at 300+ fps on High at 1080p, so you have room to raise settings or resolution on the GeForce RTX 3080.
Our estimate is about 300+ fps on High at 1080p, and about 300+ fps on Low. Verdict: Yes, runs great.
At 1080p, Ultra holds about 221 fps. At 1440p, Ultra holds 60 fps. Even 4K is possible on Ultra.
Crusader Kings III lists 8 GB as its minimum and recommends 16 GB. The graphics card does not change that: with less memory than the minimum the game can stutter or fail to start whatever card you have.