Rust

The AMD Ryzen 5 8400F and Intel Arc B580 combination delivers a highly playable Rust experience at 1080p, with clear trade-offs as resolution climbs. The data shows a consistent pattern: the CPU provides ample headroom, while the GPU’s 12 GB VRAM and 456.0 GB/s bandwidth become the determining factors at higher settings. This analysis walks through the measured rows to explain what each component contributes and where the setup’s limits lie.

CPU Role — cores, clocks, and how they relate to this game's results

The Ryzen 5 8400F is a 6-core, 12-thread processor based on Zen 4 (Phoenix) architecture, fabricated on a 4 nm process. It runs at a base clock of 4.20 GHz and boosts to 4.70 GHz, with a 65 W TDP. Its 16 MB of shared L3 cache and 83.2 GB/s memory bandwidth (DDR5, dual-channel) position it as a solid mid-range desktop part. In synthetic benchmarks, the CPU achieves a Cinebench R23 multi-core score of 20,851 and a single-core score of 2,943, with a PassMark multi-thread score of 24,530.

The processor’s percentile vs all CPUs is 82, meaning it outperforms 82% of tested parts in aggregate benchmark scores. Its nearest rival, the AMD Ryzen 7 2700X, scores 25,057 with a delta of 0%, indicating near-identical average performance. The Ryzen 5 7500F sits 0.3% higher, while the Ryzen AI 5 PRO 340 trails by 0.1%. For Rust, this CPU performance is more than sufficient: even at 3840x2160 with Low settings, the measured average FPS is 56.4, showing that frame rates are not CPU-limited at the lowest preset.

At 1920x1080, the CPU’s role becomes more visible. The jump from Low (129.5 FPS) to Medium (90.3 FPS) is a 39.2 FPS drop, but the High preset retains 77.2 FPS. These numbers suggest the 8400F can feed the GPU effectively at 1080p, as the frame rates remain high even when the GPU handles more work. The 12 threads likely help in Rust’s world simulation, but the benchmark data alone shows no CPU bottleneck at any resolution tested—the lowest average FPS across all settings is 22.5 at 4K Ultra, which is clearly GPU-bound.

GPU Role — VRAM, clocks, and how they relate to this game's results

The Intel Arc B580 uses the Xe2-HPG architecture (Battlemage generation) on a 5 nm process, with 2,560 shading units, 160 TMUs, and 80 ROPs. Its base and boost clocks are both 2670 MHz, with memory running at 2375 MHz (19 Gbps effective). The 12 GB GDDR6 memory on a 192-bit bus provides 456.0 GB/s bandwidth, which is critical for Rust’s large textures and open-world assets. The GPU’s PassMark G3D score is 15,748, and its percentile vs all GPUs is 66.

The nearest rivals show tight competition: the NVIDIA GeForce RTX 4060 scores 23,181 with a delta of -0.7%, meaning the Arc B580 trails by less than 1% in average benchmark score. The AMD Radeon 760M is 0.1% higher, and the RTX 4060 Mobile is 1.3% higher. This places the B580 in a performance class where small percentage differences translate to a few FPS in real games.

In Rust, the GPU’s VRAM and bandwidth become the primary constraints at higher resolutions and settings. At 3840x2160, the Ultra preset only yields 22.5 FPS, while High reaches 31.9 FPS. The Medium preset at 4K is 34.7 FPS, and Low jumps to 56.4 FPS. This pattern indicates the 12 GB VRAM is adequate, but the 456.0 GB/s bandwidth struggles to feed the 4K frame buffer at high quality settings. At 2560x1440, the story improves: High gives 53.9 FPS, Medium 58.5 FPS, and Low 93.9 FPS. The Ultra preset remains challenging at 39.8 FPS.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured rows, the optimal settings depend on the target resolution and minimum frame rate. At 1920x1080, the Medium preset offers the best balance: 90.3 FPS average, which is 13.1 FPS higher than High (77.2 FPS) and only 39.2 FPS below Low (129.5 FPS). The Ultra preset drops to 55.6 FPS, which is playable but not ideal for fast-paced survival encounters.

For 2560x1440 users, the Medium preset again stands out with 58.5 FPS, barely higher than High’s 53.9 FPS. The Low preset at 93.9 FPS is the only setting that clearly exceeds 60 FPS, but Medium provides a significant visual upgrade for just a 35.4 FPS penalty. At 3840x2160, no preset achieves 60 FPS; the Low setting at 56.4 FPS is the only option above 50 FPS. Given this data, the recommended approach is to use Medium at 1080p and 1440p, and Low at 4K if smoothness is prioritized over visual fidelity.

The Ultra preset is uniformly poor across resolutions, with a maximum of 55.6 FPS at 1080p and a low of 22.5 FPS at 4K. The data suggests that Ultra’s graphical gains do not justify the frame rate cost—the gap between Medium and Ultra at 1080p is 34.7 FPS, while the gap between Low and Medium is 39.2 FPS. This indicates diminishing returns beyond Medium, making it the sweet spot for this combo.

How This Combo Ranks — use comboRankInGame vs other tested combos

The AMD Ryzen 5 8400F + Intel Arc B580 combination ranks 1,324 out of 1,717 tested combos in Rust, placing it in the 23rd percentile of all systems evaluated. This ranking reflects the GPU’s mid-tier position (66th percentile vs all GPUs) and the CPU’s strong but not exceptional standing (82nd percentile vs all CPUs). The combo outperforms roughly 23% of tested systems, which is consistent with its hardware class.

The rank is likely dragged down by the GPU’s performance at 4K and Ultra settings, where the B580’s bandwidth limits show. At 1080p, the combo’s performance is competitive—129.5 FPS at Low is above average for many mid-range systems. However, the 4K results (all below 57 FPS) and the Ultra preset failures (all below 56 FPS) hurt the overall ranking. In comparison, systems with higher-ranked GPUs, such as the RTX 4060 which scores 0.7% higher in average benchmarks, would likely achieve better 4K results, pushing the combo down in the rankings.

The CPU’s 0% delta against the Ryzen 7 2700X suggests that pairing this processor with a faster GPU could yield better rankings, as the 8400F is not the bottleneck. The data shows the combo rank is primarily a function of GPU capability, not CPU deficiency.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the best resolution for this combo to maintain 60+ FPS?

A: The data shows that only 1920x1080 with Low (129.5 FPS) or Medium (90.3 FPS) settings exceeds 60 FPS. At 2560x1440, only Low (93.9 FPS) reaches above 60 FPS. No 3840x2160 setting achieves 60 FPS.

Q: How does the CPU compare to its closest rival in benchmark scores?

A: The Ryzen 5 8400F has an average benchmark score of 25,064, which is nearly identical to the AMD Ryzen 7 2700X (25,057, delta 0%). The Ryzen 5 7500F scores 24,993, 0.3% lower, while the Ryzen AI 5 PRO 340 scores 25,099, 0.1% higher.

Q: What is the frame rate difference between Low and Ultra at 1440p?

A: At 2560x1440, the Low preset averages 93.9 FPS, while Ultra averages 39.8 FPS. This represents a 54.1 FPS drop when switching from Low to Ultra.

Q: Does the GPU’s 12 GB VRAM cause issues at 4K?

A: The measured data shows 4K performance is poor—31.9 FPS at High and 22.5 FPS at Ultra. However, the Low preset at 4K reaches 56.4 FPS, indicating the VRAM is sufficient but the bandwidth (456.0 GB/s) limits high-quality settings.

Q: How does the GPU rank against the RTX 4060 in average benchmarks?

A: The Intel Arc B580 has an average benchmark score of 23,021, while the RTX 4060 scores 23,181, giving the B580 a delta of -0.7%, meaning it trails by less than one percent.

Q: Which settings preset gives the highest FPS at 1080p?

A: The Low preset at 1920x1080 gives 129.5 FPS, the highest measured value for this combo. Medium is second at 90.3 FPS, followed by High at 77.2 FPS and Ultra at 55.6 FPS.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data covers three resolutions and four settings presets, providing a complete picture of the combo’s performance envelope.

At 3840x2160 (4K), the results are consistently low. The Low preset averages 56.4 FPS, which is the only playable setting. Medium drops to 34.7 FPS, High falls to 31.9 FPS, and Ultra bottoms out at 22.5 FPS. The gap between Low and Medium is 21.7 FPS, while Medium to High is only 2.8 FPS, and High to Ultra is 9.4 FPS. This suggests that after Low, the GPU’s bandwidth is saturated, and further quality increases yield minimal FPS gains until Ultra, which is severely impacted.

At 2560x1440 (1440p), the performance improves significantly. Low averages 93.9 FPS, Medium 58.5 FPS, High 53.9 FPS, and Ultra 39.8 FPS. The drop from Low to Medium is 35.4 FPS, while Medium to High is only 4.6 FPS, and High to Ultra is 14.1 FPS. This pattern shows that Medium and High are closely matched, with Ultra requiring a substantial FPS sacrifice.

At 1920x1080 (1080p), the combo performs best. Low averages 129.5 FPS, Medium 90.3 FPS, High 77.2 FPS, and Ultra 55.6 FPS. The Low to Medium drop is 39.2 FPS, Medium to High is 13.1 FPS, and High to Ultra is 21.6 FPS. The 1080p data shows a more gradual degradation, with each preset step costing a smaller percentage drop than at higher resolutions.

Across all resolutions, the Low preset provides the highest FPS, and the Ultra preset provides the lowest. The Medium preset consistently offers a reasonable middle ground, with 90.3 FPS at 1080p, 58.5 FPS at 1440p, and 34.7 FPS at 4K. The data indicates that users should target 1080p Medium or 1440p Low for the best balance of visual quality and frame rate, while 4K is only viable with Low settings.