Rust

Resolution Scaling

The measured FPS data for Rust with the Intel Core i5-10400F and Intel Arc B580 reveals a steep performance curve as resolution increases. At 1920x1080 with Low settings, the combo delivers 133.4 FPS average, which drops to 91.5 FPS at 2560x1440 and further to 54.4 FPS at 3840x2160. That represents a 59.2% reduction in frame rate from 1080p to 4K at Low settings, indicating that the graphics card is the primary scaling bottleneck as pixel count rises.

The pattern holds across all quality presets. At High settings, the average frame rate falls from 78.1 FPS at 1080p to 52 FPS at 1440p, then to 28.8 FPS at 4K. The Ultra preset shows the most dramatic decline: 55 FPS at 1080p, 39.6 FPS at 1440p, and just 21.2 FPS at 4K. The gap between 1080p and 1440p is consistently around 26-28 FPS across settings, while the jump from 1440p to 4K costs roughly 23-26 FPS. This linear degradation suggests the Arc B580's 12 GB memory and 456.0 GB/s bandwidth are being saturated as resolution increases.

Interestingly, the scaling from Medium to High at each resolution is relatively modest. At 1080p, Medium produces 91.5 FPS while High yields 78.1 FPS — a 14.7% difference. At 4K, the same comparison shows 36.1 FPS versus 28.8 FPS, an 20.2% drop. The Ultra preset is where the most severe penalty appears: compared to High, Ultra costs 29.6% of performance at 1080p, 23.8% at 1440p, and 26.4% at 4K. This indicates that Rust's Ultra settings introduce effects that heavily tax the GPU's compute resources.

The data also shows that Low settings at 4K (54.4 FPS) outperform High settings at 1080p (78.1 FPS) by a wide margin in terms of raw frame rate, but the resolution difference means the 4K image has four times the pixel count. The CPU, with its 6 cores and 12 threads from the Comet Lake architecture, appears sufficient to feed the GPU at lower resolutions — the 133.4 FPS at 1080p Low suggests the i5-10400F is not the limiting factor in most scenarios tested.

How This Combo Ranks

In the benchmark database, this CPU-GPU pairing ranks 1323rd out of 1717 tested combos for Rust specifically. That places it in the bottom 23% of all configurations, which is a surprisingly low position given the individual components' standalone benchmarks. The Intel Arc B580 sits at the 66th percentile among all GPUs, while the Core i5-10400F ranks at the 73rd percentile among all CPUs. Yet when paired together in Rust, the combination underperforms what those individual percentiles might suggest.

The CPU's nearest rivals provide context for its solo performance. The AMD EPYC 7552 scores only 0.4% higher on average, while the AMD Ryzen 3 7320C is 0.8% ahead, the Intel Core i5-8500 is 1.1% ahead, and the AMD Ryzen Embedded V2546 is 1.2% ahead. These are all very close margins, placing the i5-10400F in a tightly contested mid-range cluster. The CPU's multi-threaded Cinebench R23 score of 10297 and single-thread score of 1453 demonstrate balanced capability for gaming workloads.

For the GPU, the Arc B580's nearest rivals are similarly tightly packed. The AMD Radeon 760M scores 0.1% higher, the NVIDIA P106-100 is 0.3% higher, the NVIDIA GeForce RTX 4060 is 0.7% higher, and the RTX 4060 Mobile is 1.3% lower. The Arc B580's PassMark G3D score of 15748 and 3DMark Steel Nomad DX12 score of 3068 indicate it competes directly with these cards. However, the low combo rank in Rust suggests that either the game's engine does not fully utilize the Arc architecture's Xe2-HPG design, or the pairing introduces some bottleneck that suppresses the expected performance.

The combination rank of 1323 out of 1717 means there are 394 tested configurations that perform worse in Rust. This puts the combo in the lower third of all pairings, a notable discrepancy from the individual component percentiles. The data suggests that Rust's specific rendering workload does not favor this particular CPU-GPU match.

GPU Role

The Intel Arc B580 is built on the Xe2-HPG architecture using TSMC's 5 nm process, with 19,600 million transistors on a 272 mm² die. The GPU operates at a fixed clock of 2670 MHz for both base and boost, with memory running at 2375 MHz (19 Gbps effective). The 12 GB of GDDR6 memory on a 192-bit bus provides 456.0 GB/s of bandwidth. These specifications position the card as a mid-range offering, with 2560 shading units, 160 texture mapping units, and 80 render output units.

The fixed 2670 MHz clock speed is notable because it means the GPU runs at a constant frequency regardless of load. In Rust, the benchmark results show that this clock speed is insufficient to maintain high frame rates at 4K Ultra, where the average drops to 21.2 FPS. The pixel rate of 213.6 GPixel/s and texture rate of 427.2 GTexel/s are the theoretical limits, but the measured FPS suggests real-world utilization falls well short at higher resolutions.

The 12 GB VRAM capacity is relevant for Rust, which is known for large world maps and extensive texture streaming. At 4K with Ultra settings, the game likely approaches the memory limit, though the data does not show explicit VRAM exhaustion symptoms such as stuttering or drastic frame drops. The 456.0 GB/s bandwidth is the same across all resolutions since it is a fixed hardware specification, but the demand per frame increases with pixel count, explaining the performance scaling observed.

The GPU's 66th percentile ranking among all GPUs, combined with its PassMark G3D score of 15748, places it in the same performance tier as the RTX 4060 (which scores 0.7% higher). The Arc B580's nearest rival in the database, the AMD Radeon 760M, scores 0.1% higher, making this an extremely competitive segment. However, Rust's measured performance suggests the game may not fully exploit the Arc's capabilities, since the combo rank is far lower than the GPU's standalone percentile would imply.

FAQ

Q: What is the best resolution for this combo in Rust?

A: The data shows 1080p Low delivers 133.4 FPS average, which is the highest measured result. For a balance of quality and performance, 1440p Medium at 62.8 FPS or 1080p High at 78.1 FPS are the most playable options.

Q: How does the Arc B580 perform against its nearest GPU rival in Rust?

A: The Arc B580's nearest rival, the NVIDIA GeForce RTX 4060, scores 0.7% higher on average benchmarks. In Rust specifically, the combo rank of 1323 out of 1717 suggests the game does not favor this pairing as much as synthetic benchmarks would indicate.

Q: Is the Core i5-10400F a bottleneck for the Arc B580?

A: The CPU's 73rd percentile ranking and Cinebench R23 scores of 10297 multi-core and 1453 single-core suggest it is capable. The 133.4 FPS at 1080p Low indicates the CPU can feed the GPU adequately at lower resolutions.

Q: What frame rate can I expect at 4K with this setup?

A: At 4K, the average FPS ranges from 21.2 (Ultra) to 54.4 (Low). Medium produces 36.1 FPS and High produces 28.8 FPS. Only the Low preset approaches playable frame rates at this resolution.

Q: What is the GPU's memory configuration and why does it matter?

A: The Arc B580 has 12 GB of GDDR6 memory with 456.0 GB/s bandwidth on a 192-bit bus. This configuration supports the measured performance scaling, with the bandwidth being a key factor in how frame rates decline as resolution increases.

Q: How does the 1080p Medium result compare to 1440p Low?

A: Both produce exactly 91.5 FPS average. This indicates that the performance cost of increasing resolution from 1080p to 1440p is offset by the quality savings from Medium to Low settings.

Measured FPS Breakdown

1920x1080:

• Low: 133.4 FPS average
• Medium: 91.5 FPS average
• High: 78.1 FPS average
• Ultra: 55 FPS average

2560x1440:

• Low: 91.5 FPS average
• Medium: 62.8 FPS average
• High: 52 FPS average
• Ultra: 39.6 FPS average

3840x2160:

• Low: 54.4 FPS average
• Medium: 36.1 FPS average
• High: 28.8 FPS average
• Ultra: 21.2 FPS average

The data shows a consistent pattern where Low settings at any resolution outperform the next higher quality tier at the same resolution. At 1080p, the spread between Low and Ultra is 78.4 FPS. At 1440p, the spread narrows to 51.9 FPS, and at 4K, it is 33.2 FPS. This compression at higher resolutions confirms that the GPU becomes increasingly the limiting factor as pixel count grows.

The Medium setting at 1440p (62.8 FPS) delivers nearly identical performance to High at 1080p (78.1 FPS), with a 19.6% difference. The most efficient combination in terms of frame rate per pixel is 1080p Low at 133.4 FPS, while the most demanding tested configuration is 4K Ultra at 21.2 FPS. These measurements represent the full range of playability for this combo, from highly responsive esports-like performance at the low end to barely playable cinematic quality at the high end.