Rust

The AMD Ryzen 5 2600 paired with the AMD Radeon RX 9070 XT presents a curious case in Rust, a game known for its demanding simulation and rendering loads. The data here shows a combination where the GPU is clearly the dominant performance driver, while the older six-core CPU provides enough headroom to avoid becoming a severe bottleneck at most settings, though the frame pacing and overall scale of performance reveal the generational gap between these two components.

Resolution Scaling

The measured FPS data reveals a classic pattern of GPU-bound scaling as resolution increases, but with some notable exceptions that hint at CPU limitations. At 1080p, moving from High to Low settings yields a jump from 105.2 FPS to 132.7 FPS, a 26% improvement. However, at 4K, the same settings change produces a much larger relative gain: from 51.4 FPS to 91.5 FPS, a 78% increase. This disparity indicates that at 1080p, the CPU is starting to limit the frame rate, preventing the GPU from fully flexing its muscles even on lower settings.

The scaling from 1440p to 4K on High settings shows a drop from 87.7 FPS to 51.4 FPS, a 41% reduction. This is a steep decline, suggesting that the RX 9070 XT is being pushed hard by Rust’s rendering at higher resolutions. Conversely, the scaling from 1080p to 1440p on Low settings is mild, going from 132.7 FPS to 113.9 FPS, a 14% drop. This smaller penalty on Low settings suggests that the CPU is more of a factor at lower resolutions, as the GPU has more headroom to render frames quickly, only to be held back by the processor’s throughput.

The data implies that the Ryzen 5 2600, with its 6 cores and 12 threads, becomes a more significant constraint as resolution decreases. At 4K Ultra, the GPU is clearly the limiting component, with the 36.6 FPS result being only 71% of the 4K High score. The pattern indicates that for this specific pairing, the RX 9070 XT’s raw power is best utilized at 1440p and 4K where the CPU bottleneck is less pronounced, whereas at 1080p, users are leaving performance on the table due to the older processor’s limitations.

FAQ

Q: What is the highest average frame rate achieved by this combo?

A: The highest measured average frame rate is 132.7 FPS, achieved at 1920x1080 resolution with Low settings.

Q: How does the combo perform at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the combo achieves an average of 36.6 FPS, which is the lowest score recorded across all tested configurations.

Q: Is there a significant performance difference between 1080p and 1440p at High settings?

A: Yes, there is a notable difference. At 1920x1080 High, the average FPS is 105.2, while at 2560x1440 High, it drops to 87.7 FPS, representing a 17% decrease in performance.

Q: What is the performance delta between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings yield 113.9 FPS, while Ultra settings yield 63.7 FPS. This shows a 44% performance drop when moving from the lowest to the highest quality preset.

Q: Does the combo perform better at 4K Low or at 1080p Ultra?

A: The 4K Low result of 91.5 FPS is slightly lower than the 1080p Ultra result of 97.1 FPS, showing that resolution scaling has a more pronounced effect than the settings preset.

Q: How much of a performance hit does the Ultra preset incur at 1080p compared to Low?

A: At 1920x1080, moving from Low (132.7 FPS) to Ultra (97.1 FPS) results in a 27% reduction in average frame rate.

GPU Role

The Radeon RX 9070 XT is the star of this pairing, and its specifications explain why it dominates the performance landscape in Rust. With 16 GB of GDDR6 memory on a 256-bit bus, the GPU has a memory bandwidth of 644.6 GB/s. This is crucial for Rust, which can be memory-hungry at higher resolutions and texture settings. The data shows that at 4K, the GPU is the primary limiting factor, as performance scales inversely with resolution, from 91.5 FPS at Low to 36.6 FPS at Ultra.

The GPU’s clock speeds also play a role in its performance. The base clock is 1660 MHz, but it can boost up to 2970 MHz, with a game clock of 2400 MHz. This wide range allows the GPU to dynamically adjust its frequency based on the workload, which is evident in the varying FPS across different settings. The GPU’s shading units (4096) and 128 ROPs contribute to its high pixel rate of 380.2 GPixel/s, which is essential for maintaining frame rates at 4K.

The GPU’s benchmark scores further contextualize its performance. Its 3DMark Steel Nomad DX12 score is 7260, and its Passmark G3D score is 26795. These numbers place it in the 82nd percentile of all GPUs, indicating strong overall performance. However, in Rust, the data shows that the GPU’s capabilities are not fully realized at lower resolutions due to the CPU bottleneck. The GPU’s performance is more reflective of its potential at 1440p and 4K, where it is the clear limiting factor, as shown by the 51.4 FPS at 4K High versus the 87.7 FPS at 1440p High.

How This Combo Ranks

This specific combination of the Ryzen 5 2600 and the RX 9070 XT ranks 703rd out of 1717 tested combos in Rust. This places it in the 59th percentile of all tested combinations, meaning that while it performs better than a majority of systems, it is not among the top tier. This ranking is somewhat surprising given the GPU’s high percentile (82nd) but is explained by the CPU’s lower percentile (77th) and the game’s sensitivity to processor performance.

The ranking suggests that the combo is held back by the CPU, particularly in scenarios where the GPU is not the bottleneck. The data indicates that the combo performs best at higher resolutions where the GPU’s workload is heavier, which is consistent with its ranking. The 703rd rank out of 1717 combos implies that there are many other pairings that achieve higher frame rates, likely with newer or more powerful CPUs that can better feed the RX 9070 XT.

The combo’s ranking also reflects the balance between the two components. While the GPU is capable of high frame rates, the CPU’s limitations prevent the system from reaching the performance levels of combos with more modern processors. This is a classic example of a pairing where the GPU’s potential is only partially unlocked, and the overall ranking reflects this compromise.

CPU Role

The AMD Ryzen 5 2600 is a 6-core, 12-thread processor based on the Zen+ architecture, with a base clock of 3.40 GHz and a boost clock of 3.90 GHz. Its 16 MB of shared L3 cache and dual-channel DDR4 memory support are relevant for gaming, but its age is evident in its performance metrics. The CPU’s Cinebench R23 multi-core score is 11186, and its single-core score is 1579. These numbers place it in the 77th percentile of all CPUs, which is respectable but not exceptional.

In Rust, the CPU’s role is to handle the game’s simulation and physics, which can be demanding. The data shows that at 1080p Low, the combo achieves 132.7 FPS, but at 1080p Ultra, it drops to 97.1 FPS. This 27% drop is less than the 78% drop seen at 4K between Low and High, suggesting that the CPU is more of a limiting factor at lower resolutions. The CPU’s single-thread performance, as indicated by its Passmark single-thread score of 2239, is sufficient for the game, but its multi-thread capability is not as strong as newer processors.

The CPU’s memory bandwidth of 46.9 GB/s is also a potential bottleneck, especially when paired with a GPU that has over 644 GB/s of bandwidth. This mismatch can cause the CPU to struggle to feed the GPU with data quickly enough, particularly at lower resolutions where the GPU is waiting for instructions. The CPU’s performance relative to its nearest rivals, such as the Intel Core i5-11600KF (with a delta of -0.6%), shows that it is competitive with older mid-range CPUs but lacks the headroom of newer designs.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates. Low settings produce an average of 132.7 FPS, while Medium settings yield 114.5 FPS. High settings drop to 105.2 FPS, and Ultra settings result in 97.1 FPS. This shows a clear progression where each higher preset reduces performance by roughly 7-10%, with the difference between Low and Ultra being 35.6 FPS.

Moving to 2560x1440, the performance decreases as expected. Low settings average 113.9 FPS, which is a 14% drop from 1080p Low. Medium settings yield 100.1 FPS, High settings produce 87.7 FPS, and Ultra settings drop to 63.7 FPS. The scaling from 1080p to 1440p is more pronounced at higher settings, with Ultra showing a 34% reduction in FPS.

At 3840x2160, the GPU is clearly the bottleneck. Low settings produce 91.5 FPS, which is actually higher than the 1440p Ultra result, showing that the resolution has a larger impact than settings. Medium settings yield 60.4 FPS, High settings drop to 51.4 FPS, and Ultra settings bottom out at 36.6 FPS. The scaling from 1440p to 4K is steep, with a 20% reduction from 1440p High to 4K High, and a 43% reduction from 1440p Ultra to 4K Ultra.

Settings Recommendations

For users of this combo, the data suggests that the best experience depends on the resolution target. At 1080p, the High preset offers a smooth 105.2 FPS, which is a good balance between visual quality and performance. The Ultra preset at 97.1 FPS is also viable, but the 8 FPS gain from dropping to High may not be worth the visual fidelity loss for most users.

At 1440p, the Medium preset at 100.1 FPS provides a very playable experience, while High at 87.7 FPS is also acceptable. The Ultra preset at 63.7 FPS is playable but may feel less responsive in fast-paced situations. For a more consistent frame rate, the Medium preset is recommended as it offers a 14% performance increase over High while still maintaining decent visuals.

At 4K, the Low preset at 91.5 FPS is the only setting that provides a truly smooth experience. The Medium preset at 60.4 FPS is borderline, and High at 51.4 FPS may be acceptable for slower-paced play. The Ultra preset at 36.6 FPS is not recommended for competitive play. Given the data, the best overall experience for this combo is at 1440p with Medium settings, which offers a high frame rate of 100.1 FPS without sacrificing too much visual quality. At 1080p, High is the sweet spot, and at 4K, Low is the only viable option for a fluid frame rate.