Rust

The Intel Core i5-10400F paired with the AMD Radeon RX 6600 presents a mid-range combination that exhibits significant performance stratification across Rust’s resolution and preset tiers. The measured data shows a clear pattern where the GPU becomes the primary limiting factor at higher resolutions, while the CPU’s 6-core, 12-thread configuration holds up adequately at lower settings. The combo ranks 1390th out of 1717 tested combinations, placing it in the lower-middle portion of the database, but the granular FPS data reveals that this position undersells its capability in specific, well-defined usage scenarios. The following analysis breaks down the measured results to identify where this system excels and where it falls short.

Resolution Scaling

The transition from 1920x1080 to 3840x2160 produces a stark and consistent drop in average frame rates across all four quality presets, indicating that the RX 6600’s rendering pipeline is heavily taxed as pixel count increases. At the Low preset, the average FPS falls from 124.4 at 1080p to 50.5 at 4K, a reduction of approximately 59%, demonstrating that even the most forgiving settings cannot mask the GPU’s bandwidth constraints at 4K. The Medium preset shows a similar trajectory, dropping from 84.0 at 1080p to 33.0 at 4K, which is a 61% decline. This scaling behavior suggests that the 224.0 GB/s memory bandwidth and 128-bit bus width are the limiting factors when pushing 8.3 million pixels, as the frame rate collapses proportionally with the resolution increase.

The High preset follows the same pattern, with 72.0 FPS at 1080p falling to 51.8 at 1440p and then to 28.3 at 4K, representing a 61% loss from the lowest to highest resolution. The Ultra preset is the most punishing, starting at 53.6 FPS at 1080p and dropping to 36.5 at 1440p and 22.6 at 4K, a 58% reduction. Interestingly, the relative drop between 1440p and 4K is more severe than between 1080p and 1440p for every preset except Low, which suggests that the GPU’s 8 GB VRAM capacity is being approached at 4K, causing additional overhead beyond raw pixel throughput. The data indicates that 1080p is the only resolution where this combination consistently maintains playable frame rates across all settings, while 1440p requires a compromise on quality to stay above 60 FPS.

GPU Role

The AMD Radeon RX 6600, built on the Navi 23 chip with RDNA 2.0 architecture, operates with a base clock of 1626 MHz and a boost clock of 2491 MHz, providing the computational foundation for these results. Its 8 GB of GDDR6 memory on a 128-bit bus delivers 224.0 GB/s of bandwidth, which directly correlates with the observed performance cliff at 4K resolution. The GPU’s 1792 shading units and 64 ROPs process Rust’s draw calls efficiently at lower resolutions, but the 4K results (28.3 FPS on High, 22.6 on Ultra) show that the pixel fill rate of 159.4 GPixel/s is insufficient for sustained high-detail rendering at that pixel count.

The benchmark scores place this GPU in the 69th percentile among all GPUs, with an average benchmark score of 25235. Its nearest rival, the AMD Radeon 890M, scores 25246, which is a 0% delta, indicating that integrated graphics solutions are now matching this discrete card in synthetic tests. However, the measured FPS data in Rust tells a different story, as the RX 6600’s dedicated memory and higher sustained clocks provide real-world advantages that synthetic scores do not fully capture. The GPU’s PCIe 4.0 x8 interface and 132 W TDP suggest it is designed for efficient operation in mid-range systems, and the data confirms that it delivers consistent frame rates up to 1440p with appropriate settings adjustments.

FAQ

Q: What is the best resolution for this CPU-GPU combo in Rust?

A: The data clearly shows 1920x1080 as the optimal resolution, with all four presets achieving average FPS above 53.6, and the Low preset reaching 124.4 FPS. At 1440p, only the Low preset (88.3 FPS) and High preset (51.8 FPS) remain viable for smooth gameplay, while 4K results are consistently below 50.5 FPS even on Low settings.

Q: How does the RX 6600 compare to its nearest rival, the AMD Radeon 890M?

A: The RX 6600 has an average benchmark score of 25235, while the Radeon 890M scores 25246, representing a 0% delta. This means the two GPUs are statistically identical in synthetic benchmarks, but the RX 6600’s dedicated 8 GB VRAM and higher boost clock provide better sustained performance in actual gaming workloads like Rust.

Q: Is the Intel Core i5-10400F a bottleneck for the RX 6600 in Rust?

A: The CPU’s 6-core, 12-thread configuration and 4.30 GHz boost clock appear sufficient, as the FPS scaling from 1080p to 1440p to 4K follows a GPU-limited pattern. The 124.4 FPS at 1080p Low suggests the CPU can keep up with the GPU’s output, though the 73rd percentile ranking (against all CPUs) indicates it is not a high-end part.

Q: What is the launch MSRP of the RX 6600?

A: The launch MSRP for the AMD Radeon RX 6600 was 329 USD. This figure is provided for reference, but the analysis here focuses solely on measured performance data without considering cost-effectiveness.

Q: How does the i5-10400F perform in multi-threaded benchmarks?

A: The CPU achieves a Cinebench R23 multicore score of 10297 and a 3DMark max threads score of 4735, with a Passmark multithread score of 12115. These results place it near the AMD Ryzen 3 7320C (average score 14277, -0.8% delta) and Intel Core i5-8500 (14332, -1.1% delta) in overall CPU benchmarks.

Q: Can this system handle 4K gaming in Rust at any settings?

A: The measured data shows that even the Low preset at 4K only achieves 50.5 FPS, and the High preset drops to 28.3 FPS. While technically playable on Low, the experience is inconsistent, and the Ultra preset falls to 22.6 FPS, which is below the threshold for smooth gameplay.

Measured FPS Breakdown

At 1920x1080, the system delivers its strongest performance across all presets. The Low preset achieves 124.4 FPS, which is the highest measured value in the entire dataset, indicating that the GPU is not heavily taxed at this resolution. The Medium preset produces 84.0 FPS, the High preset 72.0 FPS, and the Ultra preset 53.6 FPS. This range from 124.4 to 53.6 FPS shows a smooth degradation as graphical complexity increases, with each preset tier reducing performance by roughly 15-20 FPS. The 1080p results suggest that the i5-10400F’s single-thread performance (3DMark single-thread score of 688) is adequate to feed the GPU, as the frame rates scale predictably with GPU load.

Moving to 2560x1440, the performance drops are more pronounced. The Low preset still delivers a respectable 88.3 FPS, but the Medium preset falls to 57.7 FPS, and the High preset to 51.8 FPS. The Ultra preset dips to 36.5 FPS, which is below the 40 FPS threshold often considered minimum for acceptable gameplay. The difference between Low and Ultra at 1440p is 51.8 FPS, compared to 70.8 FPS at 1080p, indicating that the GPU’s pixel throughput becomes a limiting factor as resolution increases. The High and Medium presets at 1440p are nearly identical (51.8 vs 57.7), suggesting that the GPU is reaching a memory bandwidth ceiling that additional shading units cannot overcome.

At 3840x2160, the system struggles across all presets. The Low preset achieves 50.5 FPS, which is the only 4K result above 50 FPS, but this is still below the 60 FPS target. The Medium preset drops to 33.0 FPS, the High preset to 28.3 FPS, and the Ultra preset to 22.6 FPS. The scaling from Low to Ultra at 4K represents a 55% performance loss, compared to a 57% loss at 1440p and a similar 57% loss at 1080p. This consistency suggests that the GPU’s architectural limits, specifically its 128-bit memory bus and 224.0 GB/s bandwidth, constrain performance uniformly regardless of resolution, with the absolute FPS values simply shifting downward as pixel count increases.

Settings Recommendations

Based on the measured data, the optimal experience for this system depends heavily on the target resolution. At 1920x1080, the High preset at 72.0 FPS offers the best balance between visual fidelity and smoothness, as it remains comfortably above the 60 FPS threshold while providing substantially better image quality than the Medium preset’s 84.0 FPS. The Ultra preset at 53.6 FPS is acceptable for players who prioritize visuals over frame rate, but the 18.4 FPS drop from High to Ultra is substantial for the incremental graphical gains. For competitive play, the Medium preset at 84.0 FPS provides a significant frame rate advantage with only a modest reduction in quality compared to High.

At 2560x1440, the Low preset at 88.3 FPS is the only option that delivers consistently smooth gameplay, but it sacrifices most visual features. The Medium preset at 57.7 FPS is borderline, dipping below 60 FPS, while the High preset at 51.8 FPS is better suited for slower-paced exploration rather than combat scenarios. For players with 1440p monitors, the data suggests dropping to 1080p with High settings may provide a better overall experience than accepting the visual degradation of Low at native resolution. At 4K, no preset achieves 60 FPS, so the Low preset at 50.5 FPS is the only playable option, and even that requires significant visual compromises.

The measured results indicate that the RX 6600’s sweet spot is 1080p with High settings, where the 72.0 FPS average provides a smooth experience without the frame rate volatility seen at higher resolutions. The 124.4 FPS at 1080p Low demonstrates headroom for future driver optimizations or less demanding game areas, but the Ultra preset’s 53.6 FPS shows that maximum settings are not viable for consistent 60 FPS gameplay. For players willing to accept frame rates in the 50-60 FPS range, the High preset at 1440p is a reasonable compromise, but the data strongly favors 1080p for this hardware combination.

CPU Role

The Intel Core i5-10400F, with its 6 cores and 12 threads based on Comet Lake architecture, provides the processing foundation for these results. The CPU’s base clock of 2.90 GHz and boost clock of 4.30 GHz, combined with 12 MB of shared L3 cache, deliver adequate single-thread performance for Rust’s game logic and physics calculations. The 3DMark single-thread score of 688 and Cinebench R23 single-core score of 1453 indicate that the CPU can keep pace with the GPU at lower resolutions, as evidenced by the 124.4 FPS at 1080p Low. However, the CPU’s 73rd percentile ranking among all CPUs suggests it is not a high-end part, and this becomes apparent in scenarios where the GPU is not the bottleneck.

The multi-threaded benchmarks show a more complex picture. The Cinebench R23 multicore score of 10297 and Passmark multithread score of 12115 place the CPU in a competitive position against its nearest rivals, including the AMD EPYC 7552 (average score 14115, 0.4% delta) and AMD Ryzen 3 7320C (14277, -0.8% delta). These results indicate that the i5-10400F’s 12 threads can handle Rust’s background simulation and server communication tasks without causing frame drops, even when the GPU is fully utilized. The 3DMark 8-thread score of 3929 and max threads score of 4735 show that scaling is linear up to 8 threads, which is typical for games that use fewer than 12 threads effectively.

The data suggests that the CPU is not the primary bottleneck in this system for Rust, as the FPS drops from 1080p to 4K follow a pattern consistent with GPU limitations. At 1080p Low, the 124.4 FPS result is likely near the CPU’s maximum frame output, but at higher settings and resolutions, the GPU’s rendering load dominates. The CPU’s 65 W TDP and DDR4 memory support with 42.7 GB/s bandwidth provide sufficient memory throughput for the game’s world streaming, though the lack of integrated graphics means the system relies entirely on the discrete GPU. The CPU’s performance in Passmark physics (696) and data compression (185944) tests indicates it handles Rust’s procedural world generation and item interaction logic efficiently, contributing to the stable frame times observed in the measured data.