Rust

The pairing of AMD’s Ryzen 5 2600 with the Radeon RX 6750 XT in Rust presents a classic study in component balance. The measured frame rates reveal a system that is heavily influenced by both CPU architecture and GPU memory bandwidth, shifting its bottleneck depending on the resolution and quality preset selected. The data shows a component duo that can deliver smooth 1080p gameplay but struggles to maintain high refresh rates at 4K, particularly under maximum graphical load.

Resolution Scaling

The FPS drop from 1080p to 4K is significant and tells a clear story about where the performance ceiling lies. At Low settings, the average frame rate falls from 133.4 FPS at 1920x1080 to 70.2 FPS at 3840x2160, a reduction of roughly 47%. This scaling is relatively linear, suggesting that at lower quality settings, the GPU is the primary driver of performance, with the resolution increase directly impacting the render workload.

However, the scaling pattern changes dramatically at higher presets. Moving from High settings at 1080p (99.5 FPS) to 4K (41.9 FPS) results in a 58% drop, while the Ultra preset shows an even steeper decline from 77 FPS at 1080p to 27.4 FPS at 4K, a 64% reduction. This amplified drop at higher settings indicates that the GPU’s 12 GB of VRAM and its 432.0 GB/s memory bandwidth are being saturated by the combination of high resolution and complex shading. The RX 6750 XT’s pixel rate of 166.4 GPixel/s appears to be the limiting factor at 4K Ultra, where the demand for pixel throughput outpaces what the card can deliver. Interestingly, the CPU’s role becomes more apparent at 1080p, where the frame rates are high enough that the Ryzen 5 2600’s six cores and twelve threads may start to become a constraint, particularly in Rust’s CPU-intensive world simulation.

FAQ

Q: What is the best resolution for this combo to maintain a 60 FPS average?

A: The data shows that 2560x1440 on High settings delivers 66.3 FPS, while 1920x1080 on High yields 99.5 FPS. For a consistent 60 FPS experience, 1440p High is the highest quality option that meets this threshold.

Q: How does the Ultra preset compare to High at 1080p?

A: The difference is stark. High settings at 1080p produce 99.5 FPS, while Ultra drops to 77 FPS, a 22.5% performance penalty. This suggests that the Ultra preset’s additional visual effects place a heavy load on the GPU, making High a more balanced choice.

Q: Is the CPU holding back the GPU at lower resolutions?

A: The data suggests a potential CPU limit at 1080p. The jump from Low to Medium at 1080p is only from 133.4 FPS to 113.6 FPS, and High to Ultra goes from 99.5 FPS to 77 FPS. The relatively small gains from lowering settings at this resolution hint that the Ryzen 5 2600, with its 3.40 GHz base and 3.90 GHz boost clock, may be the limiting component.

Q: What is the performance gap between Low and Ultra at 4K?

A: The measured results show a massive difference. Low settings at 3840x2160 yield 70.2 FPS, while Ultra plummets to 27.4 FPS. This 42.8 FPS gap highlights how demanding the Ultra preset is on the GPU at 4K resolution.

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

A: According to the data, this combination ranks 939 out of 1717 tested combos, placing it in the middle of the pack. This indicates that while it is not a top-tier performer, it is also far from the bottom of the performance spectrum.

Q: Does the GPU’s memory size matter for this game?

A: The RX 6750 XT has 12 GB of GDDR6 memory. Given the significant FPS drops at 4K Ultra (27.4 FPS), it appears that the memory capacity is not the primary issue; rather, the 432.0 GB/s bandwidth and the GPU’s compute capabilities are being overwhelmed by the game’s high-resolution textures and effects.

How This Combo Ranks

In Rust, this specific hardware pairing achieves a rank of 939 out of 1717 tested combinations. This places it in the 54.7th percentile of all tested systems, meaning it outperforms a slight majority of other combos but is not a standout performer. The ranking suggests that while the RX 6750 XT is a capable GPU, the Ryzen 5 2600’s older Zen architecture holds the system back from reaching higher tiers.

The CPU’s average benchmark score of 19616 places it near the Intel Core i5-1345U (19691, -0.4% delta) and AMD Ryzen 5 7530U (19508, +0.6% delta), indicating its multi-threaded performance is competitive with modern mid-range mobile processors but below desktop parts like the Intel Core i5-11600KF (19740, -0.6% delta). This mid-pack CPU performance, combined with the GPU’s 79th percentile ranking among all GPUs, explains the overall 939th position. The system is clearly GPU-leaning in its capabilities, but the CPU’s single-thread performance, as evidenced by its Cinebench R23 single-core score of 1579, may be a limiting factor in Rust’s physics and world-update calculations.

Measured FPS Breakdown

The measured frame rates provide a comprehensive view of the system’s capabilities across three resolutions and four quality settings. At 1920x1080, the average FPS ranges from 133.4 on Low to 77 on Ultra, with High at 99.5 and Medium at 113.6. This shows a clear 1080p performance hierarchy where even the most demanding preset remains playable.

Moving to 2560x1440, the numbers drop significantly. Low settings produce 113.6 FPS, Medium 81.6 FPS, High 66.3 FPS, and Ultra 48.8 FPS. The 1440p Ultra result is notable, as it falls below the 60 FPS threshold, indicating that the GPU cannot handle maximum settings at this resolution. At 3840x2160, the system struggles further. Low yields 70.2 FPS, Medium 46.1 FPS, High 41.9 FPS, and Ultra 27.4 FPS. The 4K results show a clear pattern: only the Low preset offers a playable experience above 60 FPS, while all other settings fall below 50 FPS.

CPU Role

The AMD Ryzen 5 2600 is a six-core, twelve-thread processor based on the Zen+ architecture, built on a 12 nm process. Its base clock of 3.40 GHz and boost clock of 3.90 GHz are modest by modern standards. In Rust, the CPU’s role is evident in the 1080p results, where the frame rates plateau even as the GPU has headroom. The data shows that at 1080p, the difference between Low (133.4 FPS) and Medium (113.6 FPS) is only 19.8 FPS, while the difference between High (99.5 FPS) and Ultra (77 FPS) is 22.5 FPS. This pattern suggests that the CPU’s single-thread performance, reflected in its Cinebench R23 single-core score of 1579, is limiting the maximum frame rate.

The processor’s 16 MB of shared L3 cache and dual-channel DDR4 memory support with 46.9 GB/s bandwidth are adequate but not exceptional. In a game like Rust, which is known for its complex server-side and client-side simulation, the CPU’s ability to process game logic and entity updates is critical. The Ryzen 5 2600’s Passmark single-thread score of 2239 and multi-thread score of 13160 indicate that while it can handle parallel workloads, its per-core performance is a bottleneck when pushing for high frame rates at 1080p.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and desired frame rate. For 1080p gaming, the High preset at 99.5 FPS provides an excellent balance between visual fidelity and smoothness, offering a near-100 FPS experience that is well-suited for fast-paced gameplay. The Ultra preset at 77 FPS is still playable but sacrifices significant performance for marginal visual gains.

For 1440p, the High preset at 66.3 FPS is the recommended choice, as it maintains a frame rate above 60 FPS while delivering good image quality. The Medium preset at 81.6 FPS is an alternative for those who prioritize higher refresh rates over visual detail. For 4K, only the Low preset at 70.2 FPS provides a playable experience above 60 FPS. The Medium preset at 46.1 FPS is playable but may feel less responsive, while High and Ultra are not recommended for competitive play due to sub-50 FPS averages.

GPU Role

The AMD Radeon RX 6750 XT is a high-end GPU based on the RDNA 2.0 architecture, built on a 7 nm process. It features 12 GB of GDDR6 memory on a 192-bit bus, providing 432.0 GB/s of bandwidth. Its boost clock of 2600 MHz and game clock of 2495 MHz are substantial, and its 2560 shading units deliver a theoretical FP32 performance of 13.31 TFLOPS. The GPU’s 40 ray tracing cores and support for DirectX 12 Ultimate (12_2) make it a modern, feature-rich part.

In Rust, the GPU’s performance is the dominant factor at higher resolutions and settings. The data shows a clear GPU bottleneck at 4K, where even the Medium preset struggles to maintain 50 FPS. The card’s pixel rate of 166.4 GPixel/s and texture rate of 416.0 GTexel/s are high, but they are insufficient for the demands of 4K Ultra, which yields only 27.4 FPS. The GPU’s benchmark results, including a Passmark G3D score of 20700 and a 3DMark Steel Nomad DX12 score of 2548, place it in the 79th percentile of all GPUs, indicating it is a strong performer relative to the market. However, its 12 GB of VRAM appears to be sufficient for Rust’s needs, as the performance drops are more closely tied to compute and bandwidth limits than memory capacity.