Rust

Rust places heavy demands on both processor and graphics hardware, and the measured results for the AMD Ryzen 7 5800X3D paired with the Intel Arc B370 show a system that is clearly limited by the GPU at every resolution. The Arc B370, with its 25 W TDP and integrated-graphics form factor, is not designed for high-refresh gaming, and the frame rates reflect that reality. At 1080p Low, the combo reaches 69 FPS, which is the only measured setting where the average exceeds 60 FPS. Everything else falls below that threshold, with 4K Ultra dropping to just 12 FPS. These numbers tell a straightforward story: the CPU has ample headroom, but the GPU cannot translate that into playable performance at higher resolutions or quality presets.

Resolution Scaling

The FPS drop from 1080p to 4K is severe and consistent across all settings, confirming that the Intel Arc B370 is the bottleneck. At Low settings, the average frame rate falls from 69 FPS at 1920x1080 to 48 FPS at 2560x1440, a reduction of 21 FPS or roughly 30%. Moving from 1440p to 4K at Low drops the average from 48 FPS to 28 FPS, another 20 FPS loss. The cumulative effect from 1080p Low to 4K Low is a 41 FPS decline, which amounts to a 59% reduction in average frame rate. This scaling pattern is typical of a GPU that is overwhelmed by pixel count; the CPU’s role in this equation is minimal because the Arc B370’s 6.144 TFLOPS FP32 throughput and 48.00 GPixel/s pixel rate are simply insufficient for 3840x2160 rendering.

At Medium settings, the same trend appears with slightly lower absolute numbers. The 1080p Medium average is 46 FPS, dropping to 32 FPS at 1440p and then to 19 FPS at 4K. The min-to-max range at 1080p Medium spans 39 to 53 FPS, while at 4K Medium it narrows to 16 to 22 FPS. This narrowing suggests that at higher resolutions, the GPU is running at its ceiling more consistently, leaving less variance in frame delivery. The 1440p Medium range of 27 to 37 FPS shows a similar compression relative to 1080p. This behavior indicates that the limiting component is the GPU’s shading and rasterization capacity, not the CPU’s 8-core, 16-thread Zen 3 architecture.

High settings follow the expected curve: 39 FPS at 1080p, 27 FPS at 1440p, and 16 FPS at 4K. The delta between 1080p and 1440p High is 12 FPS, and between 1440p and 4K High it is 11 FPS. This near-linear drop with resolution is a hallmark of GPU-bound performance. The Ryzen 7 5800X3D’s 96 MB of shared L3 cache and 3.40 GHz base clock are not the constraint here; the data shows a system where the graphics processor is saturated before the CPU’s 3DMark max-thread score of 7285 or Cinebench R23 multi-core score of 14317 can be fully utilized.

Ultra settings are the most punishing, with 30 FPS at 1080p, 20 FPS at 1440p, and 12 FPS at 4K. The gap from 1080p to 1440p Ultra is 10 FPS, and from 1440p to 4K Ultra it is 8 FPS. At 4K Ultra, the frame rate is so low that the game becomes essentially unplayable for any action-oriented scenario. The scaling from Low to Ultra at each resolution is also telling: at 1080p, Low is 69 FPS versus Ultra’s 30 FPS, a 39 FPS difference. At 1440p, the spread is 48 to 20 FPS, and at 4K it is 28 to 12 FPS. These spreads show that quality settings have a larger impact at lower resolutions, where the GPU has more relative headroom, but even at 1080p the Ultra preset cannot sustain 30 FPS consistently.

GPU Role

The Intel Arc B370 is the primary determinant of performance in Rust for this combo. Its specs from the FACT PACK paint a clear picture: 1280 shading units, 40 TMUs, 20 ROPs, and a boost clock of 2400 MHz. The pixel rate is 48.00 GPixel/s and the texture rate is 96.00 GTexel/s. These are modest figures for a modern game, and Rust’s rendering workload pushes the GPU to its limits. The 25 W TDP confirms that this is an integrated-class part, despite the Arc branding. It has no dedicated VRAM; memory is system-shared, with bandwidth described as system-dependent. This means the GPU competes with the CPU for memory bandwidth, which in this case is DDR4 dual-channel at 51.2 GB/s from the Ryzen 7 5800X3D’s memory controller.

The VRAM situation is particularly relevant for Rust, a game known for large maps and frequent asset streaming. With system-shared memory, the Arc B370 has no dedicated VRAM pool, so the effective bandwidth and latency depend on the system’s RAM configuration. The measured FPS at 4K High (16 FPS) and 4K Ultra (12 FPS) suggest that memory bandwidth constraints are compounding the GPU’s compute limitations. The 3DMark Steel Nomad DX12 score of 1184 places this GPU at the 5th percentile among all GPUs, and its nearest rivals are legacy parts like the ATI Mobility Radeon HD 5570 (1186, -0.2% delta) and ATI Radeon HD 5770 (1190, -0.5% delta). This is not a GPU that can handle Rust’s highest presets at any resolution.

The boost clock of 2400 MHz is respectable for an integrated part, but the low shading unit count and ROP count cap the fill rate. At 1080p Low, the 69 FPS average is achievable because the GPU is not asked to render complex shadows, reflections, or textures. At 1080p Ultra, the 30 FPS average shows that the same GPU is overwhelmed by the additional shader work. The FP32 performance of 6.144 TFLOPS is the theoretical ceiling, and Rust’s draw calls and lighting calculations consume that budget quickly. The data shows no scenario where the Ryzen 7 5800X3D’s CPU performance becomes the limiting factor; even at 1080p Low, the GPU is still the constraining component, as evidenced by the 69 FPS ceiling.

The Arc B370’s architecture is Xe3-LPG on Intel’s 3 nm process, but the process node and architecture do not compensate for the small die size and limited execution resources. The 10 RT cores are present but unlikely to be used in Rust’s standard rendering paths, which rely more on rasterization. The 20 ROPs are the binding constraint for pixel output, and the measured pixel rate of 48.00 GPixel/s translates directly to the low 4K frame rates. In short, this GPU is a capable iGPU for light workloads, but for Rust it is the definitive weak link.

FAQ

Q: Can this combo run Rust at 60 FPS at any resolution?

A: The data shows only one measured scenario above 60 FPS: 1920x1080 with Low settings, which averages 69 FPS. All other settings and resolutions fall below 60 FPS, with 1440p Low at 48 FPS and 1080p Medium at 46 FPS being the closest alternatives.

Q: How does the Arc B370 compare to its nearest GPU rivals in the benchmark database?

A: The Arc B370 has a 3DMark Steel Nomad DX12 score of 1184. Its closest rival, the ATI Mobility Radeon HD 5570, scores 1186, which is -0.2% delta from the Arc B370. The ATI Radeon HD 5770 scores 1190 (-0.5% delta), and the AMD Radeon HD 7650M scores 1192 (-0.7% delta). This places the Arc B370 in the 5th percentile of all GPUs.

Q: Is the Ryzen 7 5800X3D holding back performance in Rust?

A: No, the data indicates the CPU is not the bottleneck. The Ryzen 7 5800X3D has a Cinebench R23 multi-core score of 14317 and a single-core score of 1452, with a 3DMark max-thread score of 7285. The FPS scaling with resolution and settings follows a GPU-bound pattern, where the Arc B370’s limits dominate. The CPU’s 8 cores and 16 threads are more than sufficient for Rust’s workload.

Q: What is the best measured setting for 1080p gameplay?

A: The highest average FPS at 1920x1080 is achieved with Low settings at 69 FPS. Medium settings drop to 46 FPS, High to 39 FPS, and Ultra to 30 FPS. If visual quality is a priority, Medium offers a 46 FPS average with a min-max range of 39-53 FPS, which is the most balanced measured option.

Q: How does this combo rank among all tested combinations in Rust?

A: The combo ranks 2710 out of 2953 tested combinations. This places it in the bottom 8% of all combos, which is consistent with the Arc B370’s low GPU percentile and the measured frame rates.

Q: What does the min and max FPS data tell us about frame pacing at Medium settings?

A: At 1080p Medium, the min FPS is 39 and max is 53, giving a 14 FPS spread. At 1440p Medium, the range is 27 to 37 (10 FPS spread), and at 4K Medium it is 16 to 22 (6 FPS spread). As resolution increases, the frame rate variance narrows, indicating the GPU is consistently saturated and cannot produce higher peaks.

Settings Recommendations

Based on the measured FPS data, the only playable preset for most users is Low at 1080p, where the average is 69 FPS. This is the sole configuration that exceeds 60 FPS, making it the baseline for any smooth gameplay. If you can tolerate frame rates in the 40s, 1080p Medium offers 46 FPS average with a 39-53 FPS range, which provides better visuals while staying above 30 FPS. The High preset at 1080p drops to 39 FPS, and Ultra falls to 30 FPS, both of which are borderline for a survival game where quick camera movements are common.

At 1440p, the situation becomes more constrained. Low settings yield 48 FPS, which is playable if you are not sensitive to frame drops, but Medium drops to 32 FPS and High to 27 FPS. Ultra at 1440p is 20 FPS, which is not recommended for any real gameplay. For 4K, no preset is playable: Low is 28 FPS, Medium is 19 FPS, High is 16 FPS, and Ultra is 12 FPS. The data suggests that 4K is not a viable resolution for this combo in Rust, regardless of settings.

The practical advice is to stay at 1080p for this game. Low settings provide the best frame rate, but if you want a balance between visual fidelity and performance, Medium is the highest preset that keeps the average above 45 FPS. The min FPS of 39 at 1080p Medium means that even in demanding areas, the frame rate should stay above 30 FPS, which is the minimum for acceptable playability. Avoid High and Ultra at 1080p unless you are willing to accept sub-40 FPS averages. For any resolution above 1080p, the data shows diminishing returns and rapidly falling frame rates, so it is best to stay at 1080p or lower the resolution further if you need more headroom.

How This Combo Ranks

In the database of tested hardware combinations for Rust, this pairing of the AMD Ryzen 7 5800X3D and Intel Arc B370 ranks 2710 out of 2953 combos. This places it in the 8th percentile, meaning 91.7% of tested combos perform better. This low rank is driven almost entirely by the GPU’s performance, as the Arc B370 sits at the 5th percentile among all GPUs. The CPU’s percentile is 80, indicating it is stronger than 80% of all CPUs, but that strength does not translate to Rust performance when paired with such a weak graphics processor.

The rank reflects the measured FPS across all resolutions and settings. The best result, 69 FPS at 1080p Low, is below the average for many combos that can push past 100 FPS. The 4K results are particularly poor, with the 12 FPS at Ultra being one of the lowest measured frame rates for any combo. The delta between the CPU and GPU performance is stark: the Ryzen 7 5800X3D’s avg benchmark score is 27896, while the Arc B370’s avg benchmark score is 1184. This mismatch means the CPU is idle waiting for the GPU to finish rendering frames.

In practical terms, this combo is suited for 1080p Low or Medium gameplay in Rust, and even then, the experience will be limited by frame rate dips. The 2710 rank is a data-driven verdict that this is not a gaming combo for this title at higher settings. If you already own the Ryzen 7 5800X3D, the data suggests that adding a more capable GPU would yield substantial gains, as the CPU has significant headroom. However, with the Arc B370, the system’s performance is capped at the GPU’s modest output.

Measured FPS Breakdown

The following table summarizes all measured FPS data for Rust with this combo:

| Resolution | Settings | Avg FPS | Min FPS | Max FPS |

|------------|----------|---------|---------|---------|

| 3840x2160 | High | 16 |, |, |

| 3840x2160 | Low | 28 |, |, |

| 3840x2160 | Medium | 19 | 16 | 22 |

| 3840x2160 | Ultra | 12 |, |, |

| 2560x1440 | High | 27 |, |, |

| 2560x1440 | Low | 48 |, |, |

| 2560x1440 | Medium | 32 | 27 | 37 |

| 2560x1440 | Ultra | 20 |, |, |

| 1920x1080 | High | 39 |, |, |

| 1920x1080 | Low | 69 |, |, |

| 1920x1080 | Medium | 46 | 39 | 53 |

| 1920x1080 | Ultra | 30 |, |, |

At 1080p, the progression from Low to Ultra is 69, 46, 39, and 30 FPS. The Low setting is the only one above 60 FPS, and the gap between Low and Medium is 23 FPS, which is the largest jump between presets. This indicates that Medium adds significant shading and texture work that the Arc B370 struggles to handle. The High preset is only 7 FPS below Medium, while Ultra is 9 FPS below High, showing a more gradual degradation at the higher presets.

At 1440p, the same order holds: Low is 48 FPS, Medium is 32 FPS, High is 27 FPS, and Ultra is 20 FPS. The drop from Low to Medium is 16 FPS, and from Medium to High is 5 FPS, with High to Ultra also at 7 FPS. The 1440p Low result is the only one above 40 FPS at this resolution, and it is playable but not smooth by modern standards.

At 4K, all results are below 30 FPS: Low is 28 FPS, Medium is 19 FPS, High is 16 FPS, and Ultra is 12 FPS. The 4K Low result barely breaks 25 FPS, while the rest are firmly in slideshow territory. The min FPS data for Medium at each resolution provides insight into worst-case performance: 39 at 1080p, 27 at 1440p, and 16 at 4K. These minimums are close to the averages, indicating consistent frame delivery but at a low level. The max FPS at Medium follows the same pattern: 53 at 1080p, 37 at 1440p, and 22 at 4K. This consistency suggests that the GPU is running at its thermal and power limits, with no bursty behavior to improve perceived smoothness.

In summary, the measured FPS breakdown shows a system that can handle Rust at 1080p Low with acceptable performance, but nothing more. The combination of the Ryzen 7 5800X3D’s strong CPU scores and the Arc B370’s weak GPU scores results in a heavily GPU-bound configuration. The data is clear: for Rust, this combo is a 1080p Low or Medium solution at best, with all higher resolutions and presets yielding sub-optimal frame rates.