Rust

Resolution Scaling

The measured FPS data for Rust with the AMD Ryzen 5 2600 and AMD Radeon RX 580 reveals a steep performance curve as resolution increases. At 1920x1080 with Low settings, the combo produces 74 FPS average. Moving to 2560x1440 at the same settings drops that figure to 51 FPS, a reduction of roughly 31%. At 3840x2160, the Low preset yields only 30 FPS, which is a 59% decline from the 1080p result. These numbers indicate that the RX 580's rendering pipeline becomes the primary constraint as pixel count rises, with the 256-bit memory bus and 256.0 GB/s bandwidth struggling to feed the larger framebuffers.

The pattern holds across all settings presets. At Medium settings, the average FPS goes from 49 at 1080p, to 34 at 1440p, to 20 at 4K. High settings follow the same trajectory: 42 FPS at 1080p, 29 at 1440p, and 17 at 4K. Ultra settings show the most dramatic scaling failure, with 32 FPS at 1080p collapsing to 22 at 1440p and a mere 13 at 4K. The scaling ratio from 1080p to 4K at Ultra is approximately 2.5x fewer frames, which is close to the theoretical 4x pixel count increase, suggesting the GPU is nearly fully saturated at every step.

What the data reveals about the limiting component is twofold. At 1080p, the CPU still has headroom to push higher frame rates, as evidenced by the 74 FPS Low result. But at 4K, even the Low preset cannot reach 30 FPS, meaning the GPU is the bottleneck regardless of settings. The 8 GB of GDDR5 memory is not the issue at these resolutions; rather, the Polaris 20 chip's 2304 shading units and 32 ROPs simply lack the throughput for 4K gameplay. The 6.175 TFLOPS FP32 compute figure explains why the card can handle 1080p medium settings at playable rates but falls apart beyond that.

Settings Recommendations

The measured rows provide a clear hierarchy of playability. At 1920x1080, the Low preset delivers 74 FPS average, which is the only configuration that approaches high-refresh territory. Medium at 1080p produces 49 FPS with a minimum of 42 FPS, making it the best balance for smooth gameplay without the visual penalties of Low. High at 1080p yields 42 FPS, which is still acceptable for a survival game where reaction times matter less than in competitive shooters. Ultra at 1080p drops to 32 FPS, which begins to feel sluggish for a game requiring constant environmental awareness.

At 2560x1440, the situation becomes more restrictive. Low is the only preset that stays above 50 FPS at 51 FPS. Medium falls to 34 FPS with a minimum of 29 FPS, which is borderline for playability. High at 29 FPS and Ultra at 22 FPS are both below the threshold where smooth camera movement is maintained. At 3840x2160, no preset reaches 30 FPS except Low, which exactly hits 30 FPS average. Medium at 20 FPS, High at 17 FPS, and Ultra at 13 FPS are all effectively unplayable for a game that requires quick turning and scanning.

The data suggests the optimal experience for this combo is 1080p Medium. The 49 FPS average with a 42 FPS minimum provides consistency, and the jump from Low to Medium brings meaningful visual improvements in a game where spotting distant players and resource nodes matters. For players who prioritize frame rate above all, 1080p Low at 74 FPS is the only preset that guarantees headroom above 60 FPS. At 1440p, the recommendation shifts to Low, since the 51 FPS average is the only playable option, but the 1080p Medium experience is superior in both smoothness and visual fidelity.

GPU Role

The AMD Radeon RX 580 is the dominant factor in these results, and its specifications explain why. The GPU operates at a base clock of 1257 MHz with a boost clock of 1340 MHz, which is modest by modern standards but was competitive at launch. The memory runs at 2000 MHz with 8 Gbps effective, across a 256-bit bus, yielding 256.0 GB/s of bandwidth. For Rust, which features large open-world environments with many dynamic objects, memory bandwidth is critical, and the 256-bit bus is the card's most valuable asset.

The VRAM allocation of 8 GB GDDR5 is generous for the card's class, and the measured data suggests it is not a limiting factor. Even at 4K Ultra, where the GPU is clearly overwhelmed at 13 FPS, the issue is raw compute throughput rather than memory capacity. The 2304 shading units and 144 texture mapping units provide a baseline of 193.0 GTexel/s texture rate, which handles Rust's terrain and building textures adequately at lower resolutions. The 32 ROPs, however, are the bottleneck at high resolutions, as pixel fill rate of 42.88 GPixel/s cannot keep up with 3840x2160 demands.

The GPU's benchmark profile places it in the 53rd percentile among all GPUs, with an average benchmark score of 12928. Its nearest rival, the NVIDIA GeForce RTX 3050 Ti Mobile, scores 12940 with a deltaPct of -0.1%, meaning the RX 580 is essentially tied with that mobile part. The GTX 1660 SUPER scores 12986 with a -0.4% delta, also within noise. This positioning explains why the card performs adequately at 1080p but struggles at higher resolutions — it sits at the boundary between entry-level and mid-range in modern terms. The 3DMark Steel Nomad DX12 score of 1005 confirms the card's limited DirectX 12 capability, which Rust can utilize but does not heavily depend on.

FAQ

Q: What is the best resolution to play Rust with this CPU/GPU combo?

A: The measured data shows 1920x1080 is the only resolution where the combo maintains playable frame rates across multiple presets. At 1080p, Low delivers 74 FPS, Medium delivers 49 FPS, and High delivers 42 FPS. At 1440p, only Low exceeds 50 FPS at 51 FPS, and at 4K, no preset exceeds 30 FPS.

Q: Can this combo run Rust at 4K?

A: Technically yes, but not comfortably. The only 4K preset that reaches 30 FPS is Low at exactly 30 FPS average. Medium drops to 20 FPS, High to 17 FPS, and Ultra to 13 FPS. For a survival game requiring constant situational awareness, these frame rates are too low for smooth play.

Q: How does the RX 580 compare to its closest rivals in general GPU benchmarks?

A: The RX 580's average benchmark score is 12928, placing it in the 53rd percentile. The NVIDIA GeForce RTX 3050 Ti Mobile scores 12940 with a deltaPct of -0.1%, the GTX 1660 SUPER scores 12986 with -0.4%, and the AMD Radeon 740M scores 12870 with +0.5%. These are all within a 1% margin, making them statistically equivalent.

Q: Is the 8 GB VRAM sufficient for Rust at high settings?

A: The data indicates VRAM is not the limiting factor. At 1080p High, the combo produces 42 FPS, and at 4K High it drops to 17 FPS. The performance degradation correlates with resolution and pixel count, not memory capacity. The 8 GB GDDR5 is more than adequate for Rust's texture requirements.

Q: What CPU score does the Ryzen 5 2600 achieve in multi-threaded tests?

A: The Ryzen 5 2600 scores 1248 in Cinebench R15 multicore and 5648 in Geekbench multicore. In Passmark multithread, it scores 13160. These scores place the CPU in the 75th percentile among all CPUs, indicating it is not the primary bottleneck in Rust at lower resolutions.

Q: Why does the FPS drop so much from 1080p to 4K?

A: The drop is due to the RX 580's limited pixel throughput. At 1080p Low, the card produces 74 FPS. At 4K Low, it produces 30 FPS, a 59% reduction. The 32 ROPs and 42.88 GPixel/s pixel rate cannot process the 4x pixel count increase, making the GPU the clear limiting component.

How This Combo Ranks

Among 3723 tested CPU/GPU combinations in Rust, this combo ranks 3397th. This places it in the bottom 8.8% of all tested combos, which is a poor showing for a game that is notoriously demanding on both CPU and GPU. The rank reflects the age and tier of both components: the Ryzen 5 2600 is from 2018, and the RX 580 is from 2017, both now several generations old.

The rank is notably lower than what the individual component percentiles might suggest. The CPU sits in the 75th percentile among all CPUs, while the GPU sits in the 53rd percentile. However, Rust's combination of large-scale multiplayer environments and frequent server-side calculations means the pairing matters more than individual strengths. The combo rank of 3397 out of 3723 indicates that most other tested combinations deliver better frame rates, likely due to more modern GPU architectures with better per-clock efficiency.

For context, the measured FPS at 1080p Medium is 49 FPS, which is below the 60 FPS target that many players consider minimum for smooth gameplay. The rank of 3397 suggests this combo is only suitable for low-to-medium settings at 1080p, which aligns with the measured data. Players with this combo should not expect to compete with systems featuring more recent GPUs in the upper percentiles of the database.

CPU Role

The AMD Ryzen 5 2600 provides six cores and twelve threads, with a base clock of 3.40 GHz and a boost clock of 3.90 GHz. The 65W TDP and 12nm Zen+ architecture make it an efficient but not high-performing processor by current standards. In Rust, which is known to spawn many background threads for world simulation and entity updates, the twelve threads are beneficial, but the per-core performance is the limiting factor.

The CPU's benchmark scores show a clear split between multi-threaded and single-threaded performance. Cinebench R15 multicore scores 1248, while single-core scores 157.3. Geekbench follows the same pattern with 5648 multicore and 1154 single-core. Passmark single-thread scores 2239, which is modest. The 75th percentile ranking among all CPUs indicates the CPU is above average overall, but its single-thread performance is what matters for Rust's main game loop, which is largely single-threaded.

The data suggests the CPU is not the primary bottleneck at 1080p. At 1080p Low, the combo achieves 74 FPS, which indicates the GPU can still push frames without being completely CPU-limited. However, at 1080p Ultra, the drop to 32 FPS is more attributable to the GPU's inability to handle the increased shading load. The Ryzen 5 2600's 16 MB shared L3 cache helps with the game's frequent memory accesses, but the dual-channel DDR4 memory bandwidth of 46.9 GB/s is modest. The CPU's passmark physics score of 673 and find prime numbers score of 37 reflect its modest compute throughput in specialized tasks.

In comparison to its nearest CPU rivals, the Ryzen 5 2600 is closely matched. The Intel Core Ultra 5 228V scores 21440 with a deltaPct of 0.2%, the Intel Core i9-11900H scores 21367 with 0.5%, and the AMD EPYC 9454 scores 21223 with 1.2%. These results show the Ryzen 5 2600 is competitive in average benchmark score with these parts, despite being older. For Rust specifically, the CPU's twelve threads allow the game to distribute server-side tasks, but the 3.90 GHz boost clock limits how fast those threads can execute instructions.

Measured FPS Breakdown

At 1920x1080, the combo delivers its best results. Low settings produce 74 FPS average, which is the highest measured value in the entire dataset. Medium settings yield 49 FPS average with a minimum of 42 FPS and a maximum of 57 FPS, showing a reasonable frame time distribution. High settings drop to 42 FPS average, while Ultra falls to 32 FPS average. The progression from Low to Ultra shows a 57% reduction in frame rate, from 74 to 32 FPS, which is a significant penalty for the visual upgrades.

At 2560x1440, the performance drops substantially. Low settings produce 51 FPS average, the only preset above 50 FPS. Medium falls to 34 FPS with a minimum of 29 FPS and maximum of 39 FPS. High settings yield 29 FPS, and Ultra drops to 22 FPS. The delta between 1080p and 1440p at Low is 23 FPS, a 31% reduction. At Ultra, the delta is 10 FPS, a 31% reduction as well, indicating consistent scaling across settings.

At 3840x2160, the results are marginal for playability. Low settings produce exactly 30 FPS average, which is the minimum threshold for acceptable gameplay. Medium settings fall to 20 FPS with a minimum of 17 FPS and maximum of 23 FPS. High settings yield 17 FPS, and Ultra drops to 13 FPS. The minimum frame rate at 4K Medium of 17 FPS is particularly concerning, as it indicates significant frame time spikes. The maximum frame rate at 4K Medium of 23 FPS shows that even in the best moments, the combo cannot maintain a smooth experience at this resolution.

The measured data includes min/max values only for Medium settings across all resolutions. At 1080p Medium, the spread is 42 to 57 FPS, a 15 FPS range. At 1440p Medium, the spread narrows to 29 to 39 FPS, a 10 FPS range. At 4K Medium, the spread is 17 to 23 FPS, a 6 FPS range. As resolution increases, the frame time variance decreases in absolute terms, but the relative variance becomes more impactful — a 6 FPS swing at 4K is nearly 30% of the average frame rate. This suggests the GPU is working at its limits, with less headroom to absorb scene complexity changes.