Rust

The AMD Ryzen 7 5700G and NVIDIA GeForce RTX 4090 combination delivers a compelling, if CPU-bound, experience in Rust. The data shows a system that can push very high frame rates at 1080p and 1440p, but which loses significant performance at 4K Ultra settings. This analysis breaks down the measured performance, the role of each component, and the optimal settings for this specific pairing.

FAQ

Q: What is the best resolution to play Rust with this setup?

A: At 2560x1440, the measured results show a strong balance between visual fidelity and performance, with an average of 127.3 FPS on High settings. While 1920x1080 yields higher frame rates, 1440p provides a significant visual upgrade while still comfortably exceeding 100 FPS on most presets.

Q: How does the CPU affect performance at lower resolutions?

A: The data indicates a CPU bottleneck at 1920x1080. The frame rate difference between Low (190.6 FPS) and Ultra (139.9 FPS) settings is only 50.7 FPS, suggesting the AMD Ryzen 7 5700G is limiting the RTX 4090's output, as the GPU has less work to do at this resolution.

Q: Is the RTX 4090 overkill for this game?

A: The RTX 4090 demonstrates its power primarily at 4K, where it achieves 72.8 FPS on High settings. However, its performance is constrained by the CPU at lower resolutions, indicating that while the GPU is exceptionally capable, the full potential of the RTX 4090 is not realized with this processor in Rust.

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

A: At 3840x2160, the measured average FPS on Low settings is 131.7, while Ultra settings drop to 55.4 FPS. This represents a substantial 76.3 FPS difference, showing that the Ultra preset significantly increases the graphical load on the GPU.

Q: How does this system compare to other CPUs in general benchmarks?

A: The AMD Ryzen 7 5700G has an average benchmark score of 25626, placing it in the 83rd percentile of all CPUs. It performs nearly identically to the AMD Ryzen 7 6800U, which has a score of 25706, representing a -0.3% delta.

Q: What is the GPU's general performance ranking?

A: The NVIDIA GeForce RTX 4090 has an average benchmark score of 66473, which puts it in the 91st percentile of all GPUs. Its closest rival is the NVIDIA Tesla T4 with a score of 66733, a -0.4% delta.

GPU Role

The NVIDIA GeForce RTX 4090 is the dominant force in this pairing, equipped with 24 GB of GDDR6X memory on a 384-bit bus, providing a bandwidth of 1.01 TB/s. This immense memory subsystem is crucial for Rust, a game known for its large, heavily detailed worlds and the need to stream in assets quickly. The GPU's 16,384 shading units and 512 texture mapping units ensure that the higher-resolution textures and complex geometry at higher settings are rendered without issue.

The RTX 4090's core clocks, with a base of 2235 MHz and a boost of 2520 MHz, allow it to maintain high throughput. The 128 ray tracing cores and 512 tensor cores provide the hardware foundation for advanced visual effects, though the measured data focuses on standard rasterization performance. The GPU's FP32 performance of 82.58 TFLOPS means that even at 4K resolution, the card has the raw computational power to handle the most demanding graphics presets available in Rust.

However, the data reveals a critical interaction with the CPU. At 1080p, the GPU's performance is not fully utilized. The difference between Low and High settings is only 35.6 FPS (from 190.6 to 155 FPS), which is relatively small. This suggests that the AMD Ryzen 7 5700G, with its 8 cores and 16 threads based on the Zen 3 architecture, is the limiting factor at this resolution. The GPU is capable of far more, but it is waiting on the CPU to provide draw calls and game logic updates. This is a classic CPU-bound scenario where the graphics card's potential is capped by the processor's throughput.

Settings Recommendations

For the best balance of visual quality and high frame rates, the High preset at 2560x1440 is the optimal choice. This combination delivers a measured average of 127.3 FPS, which is high enough for a smooth experience on most high-refresh-rate monitors. This preset offers a significant improvement over Medium settings (145.1 FPS) in terms of visual fidelity, while the performance cost is only 17.8 FPS. The jump to Ultra at 1440p (97.3 FPS) provides diminishing returns, as the visual enhancement is less noticeable than the 30 FPS drop from High.

At 1920x1080, the High preset is also recommended, achieving 155 FPS. While Low settings (190.6 FPS) offer a higher frame rate, the visual downgrade is substantial. The High preset provides a good compromise, and the system is still bottlenecked by the CPU at this resolution, so the GPU can handle the extra load without a proportional drop in performance. Choosing a lower preset here does not yield a large enough FPS gain to justify the loss in visual clarity.

For users with a 4K display, the Medium preset at 3840x2160 is the most sensible choice, yielding 84.4 FPS. This provides a playable frame rate while offering a better visual experience than Low (131.7 FPS). The High preset at 4K (72.8 FPS) is also viable, but the Ultra preset (55.4 FPS) drops below the 60 FPS threshold that many consider the minimum for a smooth experience in a fast-paced survival game. The performance gap between Medium and Ultra at this resolution highlights the heavy cost of the highest-quality shadows, reflections, and draw distances.

Measured FPS Breakdown

The measured data provides a clear picture of performance scaling across resolutions and settings. At 1920x1080, the system produces very high frame rates across the board. The Low preset achieves 190.6 FPS, Medium 164.4 FPS, High 155 FPS, and Ultra 139.9 FPS. The performance delta between Low and Ultra is 50.7 FPS, which is the smallest relative drop across all resolutions, reinforcing the notion of a CPU bottleneck.

Moving to 2560x1440, the GPU begins to take on more work. The Low preset delivers 167.6 FPS, which is a modest 23 FPS drop from the 1080p result. Medium settings provide 145.1 FPS, while High and Ultra produce 127.3 FPS and 97.3 FPS, respectively. The scaling here is more pronounced, with a 70.3 FPS difference between Low and Ultra settings, indicating that the GPU is becoming a more significant factor.

At 3840x2160, the GPU is the primary bottleneck. The Low preset still manages a highly playable 131.7 FPS, but the cost of higher settings is steep. Medium settings drop to 84.4 FPS, High settings to 72.8 FPS, and Ultra settings to 55.4 FPS. The 76.3 FPS difference between the Low and Ultra presets at 4K is the largest in the data set, showing the immense pressure placed on the RTX 4090 at this resolution.

Resolution Scaling

The frame rate scaling from 1080p to 4K reveals the changing bottleneck in this system. For the Low preset, the average FPS drops from 190.6 at 1080p to 167.6 at 1440p, a 23 FPS decrease. The further drop to 131.7 FPS at 4K represents a total decrease of 58.9 FPS from the 1080p baseline, or a performance retention of about 69%. This relatively high retention rate at Low settings suggests that the CPU is still a limiting factor even at 4K, as the GPU is not being fully stressed by the simple graphics.

The High preset shows a more significant scaling impact. Starting at 155 FPS at 1080p, it falls to 127.3 FPS at 1440p and then to 72.8 FPS at 4K. The total drop from 1080p to 4K is 82.2 FPS, meaning the system retains only 47% of its 1080p performance. This stark decrease indicates that at High settings, the RTX 4090 is being pushed much harder, and the GPU becomes the clear performance limiter at 4K.

The Ultra preset exhibits the steepest scaling curve. Performance drops from 139.9 FPS at 1080p to 97.3 FPS at 1440p, and finally to 55.4 FPS at 4K. The total performance loss from 1080p to 4K is 84.5 FPS, with the system retaining only 39.6% of its original speed. This data confirms that the RTX 4090, while massively powerful, faces a significant challenge in maintaining high frame rates at 4K with the most demanding settings in Rust. The scaling pattern across all presets clearly shows a system that is CPU-bound at 1080p and becomes progressively more GPU-bound as resolution increases, with the 4K Ultra combination being the most demanding scenario for the hardware.