Rust

Rust with an Intel Core Ultra 5 245 and an AMD Radeon RX 580 produces a heavily GPU-limited experience, with frame rates collapsing as resolution increases. The data shows a playable 1080p setup at Low settings, but the combination falls behind the vast majority of tested hardware pairs, ranking in the bottom 10% of all combos for this game.

Resolution Scaling

The performance drop from 1080p to 4K in Rust is severe, revealing that the AMD Radeon RX 580 is the primary bottleneck in this pairing. At 1920x1080 with Low settings, the combo achieves an average of 74 FPS. Moving to 2560x1440 at the same settings, the average falls to 51 FPS, a 31% reduction. At 3840x2160 Low, the average plummets to 30 FPS, which is a 59% drop from the 1080p result. This steep decline with each resolution step is characteristic of a graphics card that lacks the raw fill rate and memory bandwidth needed for higher pixel counts.

The scaling pattern is consistent across all settings. At High settings, the average FPS drops from 42 at 1080p to 29 at 1440p, and then to 17 at 4K. The Medium preset shows a similar trajectory: 49 FPS at 1080p, 34 at 1440p, and 20 at 4K. Even the Ultra preset, which starts at a low 32 FPS at 1080p, falls to 22 FPS at 1440p and a nearly unplayable 13 FPS at 4K. The consistent proportional decline across every quality level confirms that the GPU's computational limits, rather than CPU overhead, are dictating performance.

The nature of the bottleneck is clear from the 1440p Medium data, which shows a minimum of 29 FPS and a maximum of 39 FPS. This narrow band indicates the GPU is saturated, unable to push beyond a tight frame window. The 4K Medium result (17-23 FPS) reinforces this, as the frame time variance is minimal relative to the very low average. In contrast, the CPU, an Intel Core Ultra 5 245, has ample headroom in this scenario, as evidenced by its strong synthetic benchmark scores, but it cannot compensate for the GPU's limitations when pixel output demand rises.

CPU Role

The Intel Core Ultra 5 245 provides a solid foundation for Rust, but its capabilities are largely untapped in this configuration due to the GPU constraint. This processor features 14 cores and 14 threads, with a base clock of 3.50 GHz and a boost clock of 5.10 GHz. It is built on the Arrow Lake architecture using a 3 nm process, and its 24 MB of shared L3 cache helps with data-heavy workloads. In synthetic tests, the CPU scores 32,924 in Cinebench R23 multi-core and 4,648 in single-core, placing it in the 90th percentile of all CPUs.

The CPU's multi-threaded performance is strong, with a Passmark multithread score of 38,706 and a floating-point math score of 120,548. These numbers suggest the processor can handle complex game logic and physics calculations inherent to a survival game like Rust. However, the benchmark results in-game do not reflect this strength. At 1080p Low, where CPU load is typically highest relative to GPU load, the system only manages 74 FPS. This is not a sign of CPU weakness, but rather that the RX 580 is still the limiting factor even at the lowest resolution and quality settings.

The Core Ultra 5 245 sits near its closest rivals in processing power. It scores 0.4% below the AMD Ryzen 7 PRO 5755G and 0.5% below the AMD Ryzen 9 7900, while being 0.6% above the Intel Xeon Gold 5318H and 0.8% above the Intel Core i5-14600K. This indicates the CPU is a mid-to-high-tier performer that would not hold back a more powerful graphics card. In this specific pairing, the CPU's role is to feed frames to the GPU, and it does so without becoming a constraint, but the resulting FPS is still low due to the GPU's inability to render frames quickly enough.

GPU Role

The AMD Radeon RX 580 is the decisive factor in this combo's performance, and its age and specifications explain the low frame rates. This GPU is based on the GCN 4.0 architecture with a Polaris 20 chip, manufactured on a 14 nm process. It has 2,304 shading units, 144 texture mapping units, and 32 ROPs. Its 8 GB of GDDR5 memory operates on a 256-bit bus, providing a bandwidth of 256.0 GB/s. The base clock is 1257 MHz with a boost clock of 1340 MHz, and the memory runs at 2000 MHz (8 Gbps effective).

The GPU's compute capabilities are modest by modern standards, with an FP32 performance of 6.175 TFLOPS. Its pixel rate is 42.88 GPixel/s and texture rate is 193.0 GTexel/s. These figures are insufficient for high-resolution gaming in a demanding title like Rust. The 4K Ultra result of 13 FPS average is a direct consequence of the GPU being overwhelmed by the pixel and texture workload. The 1080p Low result of 74 FPS is near the practical ceiling for this card in this game.

The RX 580's performance percentile is 53rd among all GPUs, indicating it sits just above the median. Its average benchmark score of 12,928 is nearly identical to that of the NVIDIA GeForce RTX 3050 Ti Mobile (0.1% higher) and the NVIDIA GeForce GTX 1660 SUPER (0.4% higher). It also closely matches the AMD Radeon 740M (0.5% higher) and the AMD FirePro W5100 (0.6% higher). These comparisons show that while the RX 580 is not a bottom-tier card, it is firmly in the entry-level segment for modern gaming, and Rust's open-world environment with its draw distances and entity counts pushes it beyond its comfort zone at higher resolutions.

How This Combo Ranks

In the database of tested combinations for Rust, this pairing of the Intel Core Ultra 5 245 and the AMD Radeon RX 580 ranks 2,683rd out of 2,953 total combos. This places it in the bottom 9% of all tested hardware configurations, a position that reflects the GPU's limitations more than the CPU's capabilities. The rank is a clear verdict: this is a low-performance pairing for Rust, suitable only for lower resolutions and settings.

The discrepancy between the CPU's high percentile (90th) and the combo's low rank (9th percentile) underscores the imbalance. The strong CPU is wasted in this context because the GPU cannot translate its processing power into higher frame rates. The benchmark data indicates that users with this combo would need to significantly lower graphical expectations to achieve playable performance, and even then, the experience would be subpar compared to most other systems.

The measured FPS data aligns with this ranking. At 1080p Medium, the combo produces 49 FPS, which is a common target for casual play but below the 60 FPS threshold many players prefer. At 1440p, the best result is 51 FPS on Low settings, which is acceptable but requires sacrificing visual quality. The 4K results, ranging from 13 to 30 FPS depending on settings, are not viable for a smooth experience in a fast-paced survival game where reaction time matters.

Measured FPS Breakdown

The measured FPS data provides a complete picture of what to expect from this combo across common resolutions and quality presets. All figures are average FPS unless otherwise noted.

At 1920x1080, the results are as follows:

• Low: 74 FPS
• Medium: 49 FPS (minimum 42, maximum 57)
• High: 42 FPS
• Ultra: 32 FPS

At 2560x1440, the results are:

• Low: 51 FPS
• Medium: 34 FPS (minimum 29, maximum 39)
• High: 29 FPS
• Ultra: 22 FPS

At 3840x2160, the results are:

• Low: 30 FPS
• Medium: 20 FPS (minimum 17, maximum 23)
• High: 17 FPS
• Ultra: 13 FPS

The 1080p Low setting is the only configuration that achieves a consistently smooth frame rate above 60 FPS. The 1080p Medium and 1440p Low presets hover around the 49-51 FPS range, which is playable but may exhibit noticeable stutter in demanding scenes. All High and Ultra presets at 1440p and above fall below 30 FPS, making them unsuitable for competitive or fast-paced play.

The frame time data for Medium settings shows a pattern: at 1080p the range is 42-57 FPS, at 1440p it is 29-39 FPS, and at 4K it is 17-23 FPS. The narrowing range as resolution increases suggests the GPU is becoming more consistently saturated, with less headroom for variance. This consistency at low frame rates is not a positive sign; it indicates the GPU is working at maximum capacity without any boost capability to handle spikes in complexity.

FAQ

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

A: The data shows that 1920x1080 with Low settings is the only configuration exceeding 60 FPS, averaging 74 FPS. The 1080p Medium preset drops to 49 FPS, which is still playable, but lower settings are recommended for a smoother experience.

Q: Is the CPU or GPU the limiting factor in this pairing?

A: The GPU is clearly the limiting factor. The AMD Radeon RX 580 has a 53rd percentile ranking among GPUs, while the Intel Core Ultra 5 245 sits in the 90th percentile for CPUs. The steep FPS drops as resolution increases from 1080p to 4K, such as the fall from 74 to 30 FPS on Low settings, confirm the GPU is the bottleneck.

Q: How does this combo rank against other tested systems in Rust?

A: This combination ranks 2,683rd out of 2,953 tested combos, placing it in the bottom 9% of all systems. This low ranking is primarily due to the GPU's performance, which is comparable to the NVIDIA GeForce GTX 1660 SUPER (0.4% difference in average score) but insufficient for high-end Rust play.

Q: Can this system handle 4K gaming in Rust?

A: No, the 4K results are not playable. At 4K Low, the average FPS is 30, and at 4K Medium it drops to 20 FPS. The 4K High and Ultra presets are even lower at 17 and 13 FPS respectively, making the game effectively unplayable at this resolution.

Q: What are the frame rate expectations at 1440p?

A: At 1440p, the best result is 51 FPS on Low settings. The Medium preset averages 34 FPS, High averages 29 FPS, and Ultra averages 22 FPS. Users should stick to Low or possibly Medium settings for a borderline playable experience at this resolution.

Q: How does the GPU compare to its nearest rivals in synthetic benchmarks?

A: The RX 580 has an average benchmark score of 12,928, which is nearly identical to the RTX 3050 Ti Mobile (0.1% higher), GTX 1660 SUPER (0.4% higher), Radeon 740M (0.5% higher), and FirePro W5100 (0.6% higher). This indicates it performs at a similar level to these entry-level cards, which is consistent with its low in-game FPS figures.