Rust

The Intel Core i5-12600KF paired with the AMD Radeon RX 6800 XT presents a compelling dataset for Rust, a survival title known for its demanding simulation and rendering loads. The measured frames per second across resolutions and settings reveal a system that is highly capable at 1080p, yet shows clear signs of GPU-bound scaling as resolution increases. This analysis breaks down the performance characteristics of this specific configuration, interpreting the raw data to show where the bottleneck lies and what users can expect at each quality tier.

Resolution Scaling

The transition from 1920x1080 to 3840x2160 provides a clear picture of how this combo scales under increasing pixel pressure. At the Low preset, the average frame rate drops from 209.7 FPS at 1080p to 146.5 FPS at 1440p, a significant reduction of roughly 30%. Continuing to 4K, the Low preset further declines to 83.6 FPS. This steep decline indicates that even at the lowest settings, the GPU is becoming a limiting factor at higher resolutions, though the CPU is still feeding it enough data to maintain a playable triple-digit frame rate at 1440p.

The scaling pattern shifts dramatically when moving to higher quality presets. At High settings, the frame rate falls from 119.3 FPS at 1080p to 79.8 FPS at 1440p, and then to 47.3 FPS at 4K. The percentage drop from 1440p to 4K is approximately 40%, which is a steeper relative decline than the 30% drop seen from 1080p to 1440p. This non-linear scaling is typical of a GPU that is being saturated by the combination of higher resolution and more complex shading work, while the Core i5-12600KF maintains enough headroom to avoid becoming the primary constraint until the very lowest settings.

At the Ultra preset, the data shows the most pronounced GPU bottleneck. The system manages 91.4 FPS at 1080p, which is still smooth, but this falls to 63.7 FPS at 1440p and a demanding 39.4 FPS at 4K. The gap between the Low and Ultra presets at 4K is stark, with a difference of 44.2 FPS. This suggests that while the CPU is robust enough to handle Rust's simulation threads at 1080p, the Radeon RX 6800 XT's rendering workload scales exponentially with pixel count and shader complexity, making 4K Ultra a challenging target for consistent high-refresh-rate play.

How This Combo Ranks

In the broader context of all tested hardware combinations for Rust, this specific pairing sits at rank 526 out of 1717 total combos. This places it in the upper third of all configurations tested, indicating a solidly above-average performance tier. The percentile ranking of the individual components reinforces this: the CPU is in the 84th percentile of all processors, while the GPU is in the 87th percentile of all graphics cards. This alignment means neither component is a significant drag on the other, creating a balanced platform.

The CPU's nearest rivals in synthetic benchmarks show how tightly grouped this processor is with its contemporaries. The Intel Core i9-10900K scores a nearly identical average benchmark score, with a delta of 0%. Similarly, the Core i5-12600K is only 0.1% behind, and the Intel Core Ultra 5 125H is 0.2% behind. This indicates that the 12600KF is performing exactly as expected for its class, with no anomalous deviations in raw compute power that would skew the Rust results. The GPU also sits within a close performance band of its rivals, with the Intel Arc A550M being 0.5% faster and the NVIDIA RTX A1000 being 1.7% slower, according to the delta percentages.

Given these component-level standings, the combo rank of 526 out of 1717 is a logical outcome. It suggests that while this system is not at the absolute bleeding edge of performance—that would require a top-tier GPU and CPU combination—it is firmly in the upper echelon. The data shows a setup that can handle the game's demands without compromise at lower resolutions, but the rank also signals that there are many faster combinations available for those seeking maximum frame rates at 4K Ultra.

Settings Recommendations

Based on the measured FPS data, the optimal experience depends heavily on the target resolution and refresh rate. For 1920x1080, the Ultra preset delivers an average of 91.4 FPS, which is above the 60 FPS threshold and suitable for most monitors. However, the High preset at 119.3 FPS offers a significant improvement in smoothness and is likely the sweet spot for high-refresh-rate 1080p displays, as it maintains a comfortable margin above 100 FPS while providing better visual fidelity than Medium.

At 2560x1440, the High preset emerges as the clear recommendation. It achieves an average of 79.8 FPS, which is playable and visually rich, whereas the Ultra preset drops to 63.7 FPS. The Medium preset at 98.1 FPS is also viable, but the jump to High provides a more substantial visual upgrade for a smaller FPS cost than the jump from High to Ultra. For users prioritizing frame rate above all else, the Low preset at 146.5 FPS is available, but the visual compromise is often too severe for a game where spotting distant players is crucial.

For 3840x2160, the data suggests that the Ultra preset is not a practical choice, as the 39.4 FPS average falls below the threshold for smooth gameplay. The High preset at 47.3 FPS is borderline, but the Medium preset at 55.8 FPS offers a better balance. The Low preset at 83.6 FPS is the only option that provides a consistently smooth experience at 4K, indicating that users with 4K displays will need to significantly reduce graphical quality to achieve high frame rates, or consider lowering the resolution to 1440p for a better overall experience.

Measured FPS Breakdown

The complete dataset for this configuration shows a clear hierarchy of performance across all settings and resolutions. At 1920x1080, the Low preset yields an average of 209.7 FPS, which is the highest recorded value for this combo. This drops to 138.7 FPS at Medium, 119.3 FPS at High, and 91.4 FPS at Ultra. The difference between Low and Ultra at this resolution is 118.3 FPS, highlighting how much headroom the CPU has when the GPU is lightly loaded.

Moving to 2560x1440, the average frame rates are 146.5 FPS for Low, 98.1 FPS for Medium, 79.8 FPS for High, and 63.7 FPS for Ultra. The relative performance gap between presets narrows slightly compared to 1080p, as the GPU begins to take on more work. The Low-to-Ultra delta is now 82.8 FPS, indicating that the GPU is becoming a more significant factor in limiting performance.

At 3840x2160, the measured scores are 83.6 FPS for Low, 55.8 FPS for Medium, 47.3 FPS for High, and 39.4 FPS for Ultra. The scaling here is severe, with the Ultra preset delivering less than half the frame rate of the Low preset. The data shows that the gap between Medium and High is relatively small at 8.5 FPS, while the gap between Low and Medium is a more substantial 27.8 FPS. This suggests that at 4K, the GPU's shading units and memory bandwidth are the primary constraints, and each incremental increase in settings has a disproportionate impact on performance.

GPU Role

The AMD Radeon RX 6800 XT plays a pivotal role in these results, particularly at higher resolutions and settings. The GPU is built on the RDNA 2.0 architecture with a Navi 21 chip, fabricated on a 7 nm process at TSMC. It features 16 GB of GDDR6 memory on a 256-bit bus, providing a bandwidth of 512.0 GB/s. This memory configuration is crucial for Rust, which can be demanding on VRAM due to its large maps and numerous assets. The 16 GB capacity ensures that the card does not run out of memory at 4K Ultra, which would cause severe stuttering, but the data shows that raw compute power, not memory capacity, is the limiting factor.

The clock speeds are notable, with a base clock of 1825 MHz and a boost clock of 2250 MHz, while the game clock is rated at 2015 MHz. These high frequencies contribute to the card's FP32 performance of 20.74 TFLOPS. However, the measured FPS data reveals that even with this compute throughput, the card cannot maintain high frame rates at 4K Ultra in Rust. The 39.4 FPS average at this setting suggests that the game's rendering pipeline is heavily reliant on pixel shading and texture fill rates, which scale directly with resolution. The GPU's texture rate of 648.0 GTexel/s and pixel rate of 288.0 GPixel/s are substantial, but they are simply not enough to overcome the 4K pixel count at maximum settings.

The GPU's benchmark scores corroborate its position in the market. It holds an 87th percentile ranking among all GPUs, and its nearest rival, the Intel Arc A550M, is only 0.5% faster in average score. This indicates that the RX 6800 XT is a high-end part, but not the absolute fastest. In the context of Rust, this means that users can expect excellent performance at 1080p and 1440p, but the 4K Ultra preset will require turning down settings. The data from the measured FPS clearly shows that the GPU is the dominant bottleneck at 4K, while at 1080p the CPU has enough headroom to push frame rates well above 200 FPS on low settings.