Rust

AMD Ryzen 5 8400F and Intel Arc B580 form a mid-range pairing for Rust, a survival title known for heavy CPU load during server-side simulation and demanding rendering on the GPU. The measured data shows this combination is playable at 1080p and 1440p with specific presets, but struggles at 4K. The following analysis breaks down the benchmark results, comparing this combo to nearby hardware and detailing exactly where it succeeds and fails.

Similar Performance Alternatives

The Ryzen 5 8400F sits at the 77th percentile of all CPUs, with an average benchmark score of 25005. Its nearest rivals in the database are nearly identical in aggregate performance. The AMD Ryzen 5 7500F scores 24964, a mere 0.2% behind. The Intel Core i7-11850H scores 24935 (0.3% behind), and the Intel Core i7-13620H scores 24911 (0.4% behind). On the other side, the AMD EPYC 9474F scores 25103, which is 0.4% ahead of the 8400F. For Rust, where CPU single-thread and multi-thread performance both matter for world simulation and entity updates, any of these alternatives would deliver near-identical frame pacing. The 8400F's 6 cores and 12 threads, with a base clock of 4.20 GHz and boost of 4.70 GHz, place it squarely in this cluster.

On the GPU side, the Intel Arc B580 holds the 68th percentile across all GPUs, with an average score of 23021. Its nearest rivals are a mixed bag. The AMD Radeon RX 580 2048SP scores 23061 (0.2% ahead), while the NVIDIA GeForce RTX 2080 scores 22895 (0.6% behind). The NVIDIA GeForce RTX 3080 scores 23172 (0.7% ahead), and the NVIDIA P106-100 scores 23249 (1% ahead). The Arc B580's 12 GB of GDDR6 memory on a 192-bit bus provides 456.0 GB/s of bandwidth, which is substantial for 1080p and 1440p gaming. However, the data shows that at 4K, this GPU runs out of headroom. For Rust specifically, the difference between these rival GPUs would be most visible at higher resolutions; at 1080p, the CPU often becomes the limiting factor.

The combination of a 77th-percentile CPU with a 68th-percentile GPU means that for most titles, this system behaves like a typical mid-range build. In Rust, the measured FPS at 1080p Low (129.5 avg) suggests the CPU is capable of feeding the GPU well above 60 FPS, but the drop to 55.6 avg at Ultra indicates the GPU is the bottleneck at high visual fidelity. Rival combos using the listed CPUs with similar GPUs would likely show the same pattern: strong 1080p performance, playable 1440p with lowered settings, and unplayable 4K.

CPU and GPU Roles

The benchmark data reveals a clear division of labor between the Ryzen 5 8400F and the Arc B580 across resolutions and presets. At 1920x1080, the CPU is more influential than the GPU. The jump from Low to Medium costs 39.2 FPS (129.5 to 90.3), and from Medium to High costs another 13.1 FPS (90.3 to 77.2). The gap between Low and Ultra is 73.9 FPS, which is a massive range. This suggests that at 1080p, the GPU's shading and texture work are the primary drivers of FPS changes, but the CPU is still able to keep up even at Ultra (55.6 FPS). The fact that High (77.2 FPS) is well above 60 while Ultra (55.6 FPS) falls below indicates that the Ultra preset introduces GPU workloads that exceed the Arc B580's comfortable envelope at this resolution.

At 2560x1440, the GPU's role becomes more pronounced. The Low preset delivers 93.9 FPS, which is still CPU-bound territory, but Medium drops to 58.5 FPS, and High falls to 53.9 FPS. The scaling from Low to Medium is a 35.4 FPS loss, larger than the 39.2 FPS loss at 1080p for the same preset step. This indicates that the GPU is starting to struggle with the increased pixel count. Ultra at 1440p yields only 39.8 FPS, a 54.1 FPS drop from Low. The CPU, with its 16 MB of shared L3 cache and dual-channel DDR5 memory bandwidth of 83.2 GB/s, is not the limiting factor here; the Arc B580's 2560 shading units and 80 ROPs are simply overwhelmed by the higher resolution.

At 3840x2160, the GPU is unequivocally the bottleneck. Even the Low preset only manages 56.4 FPS, which is below the 60 FPS playable threshold. Medium (34.7 FPS), High (31.9 FPS), and Ultra (22.5 FPS) are all far below playable. The scaling from Low to Medium at 4K is 21.7 FPS, and from Medium to High is only 2.8 FPS, suggesting that the GPU is so saturated that further quality increases yield diminishing returns. The CPU's 83.2 GB/s memory bandwidth and 25,000 million transistors (on the CPU side) are irrelevant at 4K because the GPU cannot render frames fast enough. In summary, the CPU matters most at 1080p Low and Medium, while the GPU dominates all presets at 1440p and 4K.

FAQ

Q: Can this PC run Rust at 1920x1080 with High settings?

A: Yes. The measured average FPS at 1080p High is 77.2, which clears the 60 FPS playable threshold by 17.2 FPS. This is the best playable preset at this resolution.

Q: Is the Intel Arc B580 strong enough for 4K gaming in Rust?

A: No. At 3840x2160, even the Low preset only achieves 56.4 FPS, which is below the 60 FPS threshold. All other presets (Medium 34.7, High 31.9, Ultra 22.5) are far below playable.

Q: How does the Ryzen 5 8400F compare to its closest CPU rival, the Ryzen 5 7500F?

A: The 8400F scores 25005 on average, while the 7500F scores 24964. This is a 0.2% difference, meaning they are effectively identical in performance for Rust and other CPU-heavy games.

Q: What is the best playable setting at 2560x1440?

A: Only the Low preset is playable, with an average FPS of 93.9. Medium (58.5), High (53.9), and Ultra (39.8) all fall below the 60 FPS threshold.

Q: Which component is the bottleneck at 1080p Ultra?

A: The GPU. The average FPS at 1080p Ultra is 55.6, while the CPU is capable of much higher frame rates at lower presets (129.5 at Low). The Ultra preset's demands on the Arc B580 exceed its capabilities.

Q: Does the Arc B580 have enough video memory for Rust at high resolutions?

A: The GPU has 12 GB of GDDR6 memory, but the data shows that even with this capacity, the 4K results are unplayable. The bottleneck is not memory size but the GPU's compute throughput (13.67 TFLOPS FP32) and memory bandwidth (456.0 GB/s).

How This Combo Ranks

Among all tested combinations in the database, this pairing of Ryzen 5 8400F and Intel Arc B580 ranks 2809 out of 3723 combos for Rust. That places it in the 75th percentile of all tested systems, meaning it outperforms roughly 75% of combos but is outpaced by the top 25%. Given that the CPU ranks at the 77th percentile globally and the GPU at the 68th percentile, the combo's overall rank is slightly lower than the CPU's percentile, reflecting the GPU's weaker standing. In practical terms, this rank suggests that the system is a solid mid-tier performer for Rust, capable of high-refresh 1080p gaming and playable 1440p with reduced settings, but not competitive with high-end combos that would maintain 60+ FPS at 4K or at 1440p Ultra.

The rank of 2809 also implies that there are 914 combos that perform better, likely featuring higher-tier GPUs like the RTX 3080 (which is 0.7% ahead of the Arc B580 in raw score) or CPUs with higher percentiles. However, the delta between the Arc B580 and its nearest GPU rivals is small (max 1%), so the ranking gap is more likely driven by combos with significantly stronger GPUs rather than marginally better ones. For the user, this rank means the system is appropriate for 1080p gaming with high settings and 1440p gaming with Low settings, but it will not handle 4K or maxed-out presets.

The Verdict

Based on the verdictByResolution data, this PC can run Rust at 60 FPS or above in specific configurations. At 1920x1080, the system clears the threshold with High (77.2 FPS), Medium (90.3 FPS), and Low (129.5 FPS) presets. The Ultra preset at 1080p falls short at 55.6 FPS. At 2560x1440, only the Low preset is playable, delivering 93.9 FPS. The Medium (58.5), High (53.9), and Ultra (39.8) presets all fail the 60 FPS requirement. At 3840x2160, no preset is playable; the highest FPS is 56.4 at Low, which still misses the threshold by 3.6 FPS. Therefore, the honest verdict is: this is a 1080p gaming system for Rust, with a secondary capability at 1440p only if the user is willing to lower settings to Low. It is not a 4K-capable system for this game.

Best Settings per Resolution

The most demanding preset that stays at or above 60 FPS at each resolution is as follows:

• 3840x2160: No playable preset exists. The best (Low) averages 56.4 FPS, below the threshold.
• 2560x1440: Low is the only playable preset, with an average FPS of 93.9. Medium, High, and Ultra all fall below 60 FPS.
• 1920x1080: High is the best playable preset, averaging 77.2 FPS. Medium (90.3) and Low (129.5) are also playable but are less demanding. Ultra (55.6) is not playable.

These settings represent the maximum visual quality at each resolution while maintaining at least 60 FPS on average. Users seeking higher fidelity at 1440p or 4K would need to reduce resolution or accept sub-60 FPS performance.

Measured FPS Breakdown

The measured FPS data provides a complete picture of performance across all tested configurations. At 1920x1080, the system delivers:

• Low: 129.5 FPS average
• Medium: 90.3 FPS average
• High: 77.2 FPS average
• Ultra: 55.6 FPS average

The 1080p results show a clear progression: each preset step up costs roughly 20-30 FPS until Ultra, which drops sharply due to GPU saturation. At 2560x1440, the numbers are:

• Low: 93.9 FPS average
• Medium: 58.5 FPS average
• High: 53.9 FPS average
• Ultra: 39.8 FPS average

The 1440p data reveals a steep cliff between Low and Medium, indicating that the Arc B580 can handle the pixel count at Low settings but struggles once shadows, textures, and post-processing are increased. At 3840x2160, the results are:

• Low: 56.4 FPS average
• Medium: 34.7 FPS average
• High: 31.9 FPS average
• Ultra: 22.5 FPS average

The 4K numbers are uniformly below the 60 FPS threshold, with even Low settings failing by 3.6 FPS. The scaling from Medium to High at 4K is only 2.8 FPS, suggesting the GPU is so constrained that quality changes have minimal impact. No min or max FPS values were recorded in the data, so only averages are available. Across all resolutions, the pattern is consistent: the system is playable at 1080p with three presets, barely playable at 1440p with one preset, and unplayable at 4K. The 8400F's CPU performance is sufficient for Rust's simulation at 1080p, but the Arc B580's GPU performance is the limiting factor at higher resolutions and presets.