Rust

The Intel Core i5-10400F paired with the AMD Radeon RX 6750 XT delivers a playable but resolution-sensitive Rust experience. At 1080p, the combo produces high frame rates suitable for competitive play, but 4K Ultra settings push it below playable thresholds. The data indicates a system where the GPU becomes the primary bottleneck at higher resolutions, while the six-core CPU keeps pace at lower settings.

Resolution Scaling

The measured FPS rows show a steep performance penalty as resolution climbs. At 1080p Low, the combo achieves 151.4 FPS, but this drops to 120.8 FPS at 1440p Low and further to 72.2 FPS at 4K Low. That represents a 52.3% reduction from 1080p to 4K at Low settings, which is a substantial hit but still results in a playable frame rate at 4K on the lowest preset.

The scaling pattern changes dramatically with higher settings. At High settings, the frame rate falls from 100 FPS at 1080p to 70.8 FPS at 1440p and 40.1 FPS at 4K — a 59.9% loss from 1080p to 4K. The Ultra preset shows the most severe degradation: 77.5 FPS at 1080p drops to 52.8 FPS at 1440p and bottoms out at 30.2 FPS at 4K, a 61% reduction. The widening gap between resolutions at higher settings confirms that the GPU is the limiting component once pixel count rises.

The scaling between 1080p and 1440p is relatively mild compared to the jump to 4K. At Medium settings, 1080p delivers 116.5 FPS versus 81.6 FPS at 1440p, a 30% drop. Moving from 1440p to 4K at Medium settings cuts performance from 81.6 FPS to 46.4 FPS, a 43.1% reduction. The data suggests that 1440p is the practical ceiling for this combo at medium-to-high settings, while 4K demands Low settings to stay above 60 FPS.

GPU Role

The Radeon RX 6750 XT carries 12 GB of GDDR6 memory on a 192-bit bus, providing 432.0 GB/s of bandwidth. The 2560 shading units and 64 ROPs operate at a game clock of 2495 MHz with a boost up to 2600 MHz. These specifications place the GPU in the 79th percentile among all tested GPUs, with an average benchmark score of 35327. Its nearest rivals include the AMD Radeon RX 5600M (0.2% ahead) and the NVIDIA GeForce RTX 3080 (1.3% behind), indicating the 6750 XT sits in a competitive mid-range tier.

The VRAM capacity proves sufficient for Rust’s demands, as even at 4K Ultra the system does not appear to hit memory limits — the frame rate collapse at that preset is more consistent with raw compute and bandwidth constraints. The 432.0 GB/s bandwidth is adequate for 1440p gaming but becomes a limiting factor at 4K, where the pixel throughput requirement outpaces what the 192-bit interface can sustain alongside the 13.31 TFLOPS FP32 compute.

The GPU’s 40 ray accelerators and DirectX 12 Ultimate support do not meaningfully influence these results, as Rust does not leverage ray tracing in the measured presets. The 166.4 GPixel/s pixel rate explains why 4K Ultra (30.2 FPS) falls below playable thresholds — the ROP count and clock speed simply cannot fill 8.3 million pixels per frame at high quality settings.

Settings Recommendations

For 1440p displays, the Low preset delivers 120.8 FPS, which provides a significant margin above refresh rate targets for fast-paced survival gameplay. Medium settings at 1440p still produce 81.6 FPS, offering a balanced visual upgrade without sacrificing smoothness. High settings at 1440p (70.8 FPS) remain playable but approach the 60 FPS threshold, making Medium the recommended choice for most users seeking visual fidelity without frame rate risk.

At 1080p, the combo shines across all presets. Low settings hit 151.4 FPS, Medium reaches 116.5 FPS, and High manages 100 FPS. Even Ultra at 1080p delivers 77.5 FPS, which is smooth enough for most monitors. The data suggests that 1080p High (100 FPS) provides the best experience on this resolution, balancing visual quality with a comfortable frame rate cushion.

At 4K, only the Low preset (72.2 FPS) achieves playable performance. Medium drops to 46.4 FPS and High falls to 40.1 FPS, both below the 60 FPS standard. Ultra at 30.2 FPS is effectively unplayable. Users with 4K displays should accept Low settings or consider reducing resolution to 1440p for a better experience.

How This Combo Ranks

This specific CPU-GPU pairing ranks 845th out of 1717 tested combos in Rust, placing it in the 49th percentile — almost exactly the median. The ranking reflects the mismatch between the CPU’s 73rd percentile standing (average score 14168) and the GPU’s 79th percentile (average score 35327). The combo performs below what either component achieves individually, suggesting the pairing does not fully exploit the GPU’s potential in this title.

The CPU’s nearest rivals — the AMD EPYC 7552 (0.4% ahead) and AMD Ryzen 3 7320C (0.8% behind) — have similar average scores, indicating the i5-10400F sits in a crowded performance band. The GPU’s nearest rivals, including the RTX 5070 Ti Mobile (0.3% behind) and Radeon 880M (0.9% behind), show that the 6750 XT is well-positioned but not exceptional. The 845th rank suggests that many other combos achieve better Rust performance, likely due to more balanced pairings or higher-tier components.

CPU Role

The Intel Core i5-10400F provides 6 cores and 12 threads with a base clock of 2.90 GHz and boost up to 4.30 GHz. Its 12 MB of shared L3 cache and dual-channel DDR4 memory support with 42.7 GB/s bandwidth are modest by current standards. The CPU’s 3DMark scores — 4748 for 16 threads and 688 for single thread — show moderate multithreaded capability but weaker single-core performance compared to newer architectures.

In Rust, which relies heavily on single-thread performance for game logic and physics, the i5-10400F’s single-core scores (1453 in Cinebench R23 single-core, 2541 in PassMark single-thread) are adequate but not outstanding. The 3DMark 2-thread score of 1350 indicates that the CPU can handle the lightly threaded workloads common in survival games. The 65W TDP and Comet Lake architecture, built on Intel’s 14nm process, limit overclocking potential since the multiplier is locked.

At 1080p Low, where the GPU is less stressed, the CPU becomes more relevant — the 151.4 FPS result suggests the i5-10400F can feed the GPU sufficiently at that resolution. However, the gap between 1080p Low (151.4 FPS) and 1080p Ultra (77.5 FPS) shows that the GPU is still the primary constraint even at lower resolutions. The CPU’s 73rd percentile ranking versus the GPU’s 79th suggests a slight CPU bottleneck in CPU-bound scenarios, but the measured data shows the GPU dominates performance scaling.

Measured FPS Breakdown

At 1920x1080, the combo produces its best results. Low settings average 151.4 FPS, Medium 116.5 FPS, High 100 FPS, and Ultra 77.5 FPS. The spread from Low to Ultra is 73.9 FPS, indicating that settings have a moderate impact at this resolution.

At 2560x1440, performance degrades predictably. Low averages 120.8 FPS, Medium 81.6 FPS, High 70.8 FPS, and Ultra 52.8 FPS. The drop from 1080p to 1440p at Low settings is 30.6 FPS, while at Ultra the loss is 24.7 FPS.

At 3840x2160, the results show a clear GPU limitation. Low averages 72.2 FPS, Medium 46.4 FPS, High 40.1 FPS, and Ultra 30.2 FPS. The difference between Low and Medium at 4K is 25.8 FPS, while the gap between High and Ultra narrows to 9.9 FPS, indicating diminishing returns as settings increase.

The data reveals that this combo achieves its best performance-to-quality ratio at 1080p High (100 FPS) or 1440p Medium (81.6 FPS). At 4K, only Low settings provide a playable experience, and even then, the 72.2 FPS result is near the edge of what most users would consider smooth. For competitive play, 1080p Low at 151.4 FPS offers the highest frame rate, but the visual compromise may not be worth it given the 100 FPS result at High settings.