Rust

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data for Rust with this AMD Ryzen 5 5600X and AMD Radeon RX 6700 XT combination reveals a consistent and steep performance curve as resolution climbs. At the Low preset, the drop from 1080p to 1440p is from 162.8 FPS down to 116.7 FPS, a reduction of roughly 28%. Pushing further to 4K brings the Low preset down to 64.8 FPS, which is a 60% loss from the 1080p figure. This steep decline indicates that at higher resolutions, the rendering load on the GPU becomes the dominant constraint, as the pixel count quadruples from 1080p to 4K.

The High preset shows a similar pattern but with a more compressed range. At 1080p, the combo achieves 94 FPS, which falls to 65.8 FPS at 1440p and then to 36.8 FPS at 4K. The gap between 1440p and 4K here is particularly telling — a 44% drop — suggesting that the Radeon RX 6700 XT's 12 GB of GDDR6 memory and 384.0 GB/s bandwidth are being saturated by the 4K workload. The data implies that Rust at 4K is heavily GPU-bound, as the CPU's role diminishes when the GPU struggles to feed frames at that resolution.

What is most revealing is the Ultra preset scaling. From 70.1 FPS at 1080p, it drops to 46.5 FPS at 1440p, and then to 27.1 FPS at 4K. The 4K Ultra result is barely playable, and the scaling from 1440p to 4K (a 42% loss) mirrors the High preset's behavior. This consistency across presets confirms that the limiting component at 4K is the GPU, not the CPU. The Ryzen 5 5600X, with its 6 cores and 12 threads boosting up to 4.60 GHz, appears to have ample headroom at lower resolutions, but the RX 6700 XT's compute throughput of 13.21 TFLOPS becomes the bottleneck as resolution increases.

Interestingly, the Low preset at 1080p (162.8 FPS) versus the High preset at 1080p (94 FPS) shows a 73% performance delta, indicating that the game's settings have a massive impact on GPU load even at the same resolution. This suggests that Rust's visual effects, such as draw distances and shadow quality, are particularly demanding on the GPU's shading units and texture units.

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

Examining the measured FPS rows, the Medium preset emerges as the most balanced option for this combo. At 1080p, Medium delivers 112 FPS, which is only 31% lower than Low's 162.8 FPS but offers a significantly better visual experience than Low. The jump from Medium to High at 1080p costs 18 FPS (from 112 to 94), which is a 16% penalty for what is typically a modest visual gain in Rust. At 1440p, Medium holds at 77 FPS, which remains smooth for most displays, while High drops to 65.8 FPS — still playable but approaching the threshold where competitive players might notice input latency.

For 4K, the data strongly suggests avoiding Ultra, as the 27.1 FPS average is below the generally accepted playability floor. Medium at 4K produces 46.6 FPS, which is marginal, but Low at 4K delivers 64.8 FPS, making it the only 4K preset that approaches a comfortable experience. The recommendation based on the measured rows is to use Medium at 1080p or 1440p for the best combination of frame rate and visual fidelity, and to drop to Low if 4K is the target resolution. The Ultra preset appears to be a showcase mode rather than a practical setting, as it reduces performance by 38% compared to High at 1080p (70.1 vs 94 FPS) with diminishing visual returns.

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

The AMD Radeon RX 6700 XT's specifications provide context for the measured results. Its 12 GB of GDDR6 memory on a 192-bit bus delivers 384.0 GB/s of bandwidth, which is substantial but not unlimited. Rust's open-world environments with persistent structures and terrain data can consume significant VRAM, and the data shows that at 4K Ultra, the combo drops to 27.1 FPS, suggesting that both memory bandwidth and compute capacity are strained. The GPU's boost clock of 2581 MHz and game clock of 2424 MHz are relatively high, but the 40 ray accelerators and 2560 shading units are the primary drivers of rasterization performance.

The GPU's 13.21 TFLOPS of FP32 compute is a modest figure for 4K gaming, and this is reflected in the 4K results. At 1080p, the GPU's pixel rate of 165.2 GPixel/s and texture rate of 413.0 GTexel/s are sufficient to feed the display, allowing the CPU to push higher frame rates. However, as resolution increases, the GPU's shading units become the limiting factor, as evidenced by the steep FPS drops. The 64 ROPs are also relevant — at 4K, the fill rate required to output pixels at acceptable frame rates exceeds what this GPU can sustain at higher presets.

The GPU's DirectX 12 Ultimate support and 12_2 feature level are modern, but the measured data shows that Rust's engine does not necessarily benefit from these features at higher resolutions. The benchmark results from the GPU, such as a 3DMark Steel Nomad DX12 score of 2435 and a Passmark G3D score of 19786, place it in the 77th percentile of all GPUs, which aligns with its mid-range positioning. The nearest rival, the AMD Radeon RX 6800, scores 0.7% higher on average, indicating that the RX 6700 XT is closely matched at the top of its performance tier.

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

At 1920x1080, the combo delivers its strongest results. The Low preset achieves 162.8 FPS, which is the highest measured value across all configurations. Medium follows at 112 FPS, High at 94 FPS, and Ultra at 70.1 FPS. The spread from Low to Ultra is 92.7 FPS, showing that preset selection has a dramatic effect on performance at this resolution. The CPU's 12 threads and high single-thread score (917 in 3DMark single-thread, 2622 in Cinebench R23 single-core) likely enable these high frame rates, as the GPU is not yet the bottleneck at 1080p.

At 2560x1440, the numbers compress. Low produces 116.7 FPS, Medium 77 FPS, High 65.8 FPS, and Ultra 46.5 FPS. The Low-to-Ultra spread narrows to 70.2 FPS, indicating that the GPU is starting to limit performance. The 1440p results are roughly 70-72% of the 1080p figures across presets, which is consistent with the increased pixel count. Medium at 77 FPS is the only preset that clears 60 FPS at 1440p besides Low, making it the recommended choice for high-refresh 1440p monitors.

At 3840x2160, the combo struggles at higher presets. Low yields 64.8 FPS, Medium 46.6 FPS, High 36.8 FPS, and Ultra 27.1 FPS. Only Low achieves a playable frame rate above 60 FPS, and even that is marginal. The drop from Medium to High at 4K is 9.8 FPS (from 46.6 to 36.8), a 21% reduction that suggests the High preset's additional effects are disproportionately expensive at this resolution. The Ultra preset's 27.1 FPS is below the threshold for smooth gameplay, making it effectively unplayable for most users.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of the AMD Ryzen 5 5600X and AMD Radeon RX 6700 XT ranks 936th out of 1717 tested combos in Rust, placing it in the 54th percentile of all configurations. This ranking is noteworthy because the individual components are not top-tier — the CPU is in the 78th percentile of all CPUs, and the GPU is in the 77th percentile of all GPUs. The combo's rank being lower than either component's individual percentile suggests that Rust's performance is not perfectly correlated with raw component strength, or that other combos in the database leverage higher-end parts more effectively.

The CPU's nearest rivals include the AMD Ryzen 5 5600GT, which scores 0.3% higher on average, and the Intel Core i7-10700, also 0.3% higher. The Intel Core i5-12490F is 0.5% higher, while the Intel Xeon 6325P is 0.7% lower. These small deltas indicate that the Ryzen 5 5600X is tightly clustered with its peers, and any performance differences in Rust are more likely attributable to the GPU or game engine than to CPU choice. The GPU's nearest rival, the AMD Radeon RX 6800, scores 0.7% higher on average, while the NVIDIA RTX A5000 is 1.3% higher.

The rank of 936 out of 1717 means that roughly 54% of tested combos perform better in Rust, which is a mid-pack result. Given that the data is measured (not simulated), this rank reflects real-world performance. The implication is that while this combo is capable of playable frame rates at 1080p and 1440p, it does not excel in Rust compared to other configurations, likely due to the game's engine favoring certain hardware combinations over others.

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

Q: What is the best preset for 1440p gaming with this combo?

A: Based on the measured data, Medium at 2560x1440 delivers 77 FPS, which is the highest playable frame rate above 60 FPS for that resolution. Low achieves 116.7 FPS, but High drops to 65.8 FPS and Ultra to 46.5 FPS.

Q: Can this combo handle 4K in Rust?

A: At 3840x2160, only the Low preset achieves a playable frame rate of 64.8 FPS. Medium dips to 46.6 FPS, High to 36.8 FPS, and Ultra to 27.1 FPS, making 4K gaming viable only at the lowest settings.

Q: How does the CPU's single-thread performance compare to its rivals?

A: The Ryzen 5 5600X scores 2622 in Cinebench R23 single-core, and its nearest rivals, the Ryzen 5 5600GT and Intel Core i7-10700, have average benchmark scores that are 0.3% higher, indicating very close single-thread performance.

Q: What is the GPU's memory configuration?

A: The AMD Radeon RX 6700 XT has 12 GB of GDDR6 memory on a 192-bit bus, providing 384.0 GB/s of bandwidth. The memory clock is 2000 MHz, with 16 Gbps effective.

Q: Is the Ultra preset worth the performance cost?

A: At 1080p, Ultra delivers 70.1 FPS versus High's 94 FPS, a 25% penalty. At 1440p, Ultra drops to 46.5 FPS, and at 4K, it falls to 27.1 FPS, making Ultra a poor choice for playable frame rates.

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

A: It ranks 936th out of 1717 combos, placing it in the 54th percentile. The CPU is in the 78th percentile of all CPUs, and the GPU is in the 77th percentile, suggesting the combo underperforms relative to its components' individual standings.

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

The AMD Ryzen 5 5600X is a 6-core, 12-thread processor based on the Zen 3 architecture, fabricated on TSMC's 7 nm process. Its base clock of 3.70 GHz boosts up to 4.60 GHz, and it has 32 MB of L3 cache. In Rust, the CPU's role is most apparent at 1080p, where the Low preset achieves 162.8 FPS — a frame rate that necessitates strong per-core performance. The CPU's 3DMark single-thread score of 917 and Cinebench R23 single-core score of 2622 indicate robust single-threaded capability, which is critical for Rust's game logic and physics simulation.

The CPU's 78th percentile ranking among all CPUs, with an average benchmark score of 20680, places it slightly below its nearest rivals. The AMD Ryzen 5 5600GT and Intel Core i7-10700 both score 0.3% higher on average, while the Intel Core i5-12490F is 0.5% higher. These marginal differences suggest that the 5600X does not provide a meaningful advantage in Rust over its closest competitors. The CPU's 65 W TDP and 7 nm process node contribute to efficient operation, but the data shows that performance in Rust scales more with GPU load than CPU headroom.

At 4K, the CPU's influence diminishes significantly. The FPS drops from 1080p to 4K are consistent across all presets, indicating that the GPU becomes the bottleneck. The CPU's 12 threads and 4.60 GHz boost clock are sufficient to keep up with the GPU's output at lower resolutions, but at 4K, the RX 6700 XT's 13.21 TFLOPS of compute is the limiting factor. The measured data suggests that the 5600X is not holding back the GPU at any resolution, as the FPS scaling follows the GPU's expected performance curve.

The CPU's 4,150 million transistors and 74 mm² die size are modest compared to the GPU's 17,200 million transistors and 335 mm² die, reflecting the different workloads each component handles. In Rust, the CPU's dual-channel DDR4 memory support with 51.2 GB/s bandwidth is adequate for feeding the GPU, as the game does not appear to be memory-bandwidth-limited based on the measured results. The CPU's PCIe Gen 4 interface with 20 lanes provides sufficient bandwidth for the GPU's PCIe 4.0 x16 connection, ensuring no data transfer bottlenecks.