Rust

Rust’s measured performance with the Intel Core Ultra 5 125H and AMD Radeon 880M is decisively GPU-limited at every resolution and settings combination, with the integrated graphics acting as the primary bottleneck. The data shows the combo ranks 2878th out of 2953 total tested combinations, placing it in the bottom 3% of all systems for this title. This is not a playable configuration for modern Rust at high visual standards; only the absolute lowest settings at 1080p approach acceptable frame rates, hitting a 64 FPS average, while every other configuration falls below the 60 FPS threshold, with 4K Ultra producing an unplayable 11 FPS average.

Resolution Scaling

The frame rate drop from 1080p to 4K is severe and reveals a configuration that is overwhelmingly constrained by the GPU. At Low settings, the average FPS falls from 64 at 1920x1080 to 44 at 2560x1440, a 31% reduction, and then plummets to 26 at 3840x2160, a further 41% drop from 1440p. This steep decline with each resolution increase is the classic signature of a system where the graphics processor is saturated; the Radeon 880M's 4.454 TFLOPS of FP32 performance is simply insufficient to feed the pixel pipeline at higher resolutions.

The scaling pattern becomes even more telling when examining the High settings preset. The transition from 1080p High (36 FPS) to 1440p High (25 FPS) is a 31% loss, and moving to 4K High (15 FPS) represents another 40% loss from the 1440p figure. The consistency of these percentage drops across different presets indicates that the limiting component does not change with the graphics load; it is always the GPU. The CPU, with its 14 cores and 18 threads, is not the constraining factor here, as its performance headroom is never fully utilized when the GPU is struggling to render frames.

At the Ultra preset, the situation becomes dire for resolution scaling. The average FPS at 1080p Ultra is 28, which drops to 19 at 1440p (a 32% loss) and then to 11 at 4K (a 42% loss from 1440p). These figures suggest that the Radeon 880M's rendering capabilities are exhausted, and the system is essentially unable to maintain a fluid presentation at any resolution above 1080p with this quality level. The data indicates that for users attempting to play Rust on this hardware, reducing resolution provides diminishing returns below 1440p because the base performance is already too low to be enjoyable.

FAQ

Q: What is the highest average frame rate achievable with this CPU and GPU combination in Rust?

A: The best measured result is 64 FPS at 1920x1080 with Low settings. This is the only configuration that surpasses the 60 FPS mark, and it does so by a narrow margin of 4 frames per second.

Q: Is Rust playable at 4K resolution with the AMD Radeon 880M?

A: No, it is not. The highest average FPS at 3840x2160 is 26 FPS on Low settings, which is below the standard for smooth gameplay. The Ultra preset at 4K yields an average of 11 FPS, which is effectively a slideshow.

Q: How does this system's performance compare to other tested combos?

A: The combination ranks 2878th out of 2953 total combos, placing it in the bottom 3% of all systems tested for Rust. This indicates that it is among the weakest configurations for this particular game.

Q: What is the impact of switching from High to Low settings at 1080p?

A: The average frame rate increases by 78%, from 36 FPS to 64 FPS. This is a massive performance gain and suggests that Low settings are the only viable option for achieving near-60 FPS gameplay.

Q: Does the Ultra preset ever provide a playable experience?

A: No. The highest average FPS on Ultra is 28 at 1080p, which is below the typical 30 FPS minimum for interactive gameplay. At 4K Ultra, the average drops to 11 FPS, confirming that this preset is not intended for this hardware.

Q: What are the minimum frame rates recorded for this system?

A: The measured minimum FPS data is only available for the Medium preset. At 1080p Medium, the minimum is 37 FPS, at 1440p Medium it is 25 FPS, and at 4K Medium it is 15 FPS, indicating potential stutter in demanding scenes.

GPU Role

The AMD Radeon 880M is the primary determinant of performance in Rust for this system, and its specifications explain why. The GPU operates at a base clock of 400 MHz and boosts to 2900 MHz, with 768 shading units and 48 texture mapping units. This hardware configuration yields a measured FP32 performance of 4.454 TFLOPS, which is the raw compute power available for rendering. The benchmark results show the GPU has a Passmark G3D score of 7615 and a percentile ranking of 43, meaning it performs better than only 43% of all GPUs tested.

The memory subsystem is a critical weakness for this integrated graphics solution. The Radeon 880M uses system shared memory for VRAM, with a bus width that is also system shared and bandwidth that is system dependent. This means the GPU competes with the CPU for memory bandwidth, which is a severe handicap in a game like Rust that requires substantial memory traffic for its large, persistent world. The dual-channel memory bus of the CPU, with a bandwidth of 89.6 GB/s, is shared between the 18 threads of the Core Ultra 5 125H and the GPU, creating a bottleneck that limits texture streaming and geometry processing.

The GPU's performance relative to its nearest rivals in the benchmark database underscores its position. It scores within 0.3% of the NVIDIA GeForce MX330 and 0.1% of the GTX 675MX, but it is 1.3% slower than the AMD Radeon R9 M375X. These comparisons place the 880M firmly in the entry-level mobile graphics tier, which aligns with the measured frame rates in Rust. The 12 ray tracing cores and DirectX 12 Ultimate support do not help in this title, as the game's rendering load is primarily on the traditional rasterization pipeline, where the 16 ROPs and 139.2 GTexel/s texture rate are the limiting factors.

Measured FPS Breakdown

At 1920x1080, the resolution most likely to be used with this hardware, the data shows a clear hierarchy across presets. Low settings deliver an average of 64 FPS, making it the only playable option. Medium settings drop to 43 FPS, with a minimum of 37 FPS and a maximum of 50 FPS, indicating inconsistent frame pacing. High settings reduce the average to 36 FPS, while Ultra bottoms out at 28 FPS. The step from Low to Medium is a 33% performance penalty, and the step from Medium to High is a 16% penalty, showing that the GPU struggles with even moderate increases in visual complexity.

Moving to 2560x1440, the performance degrades predictably. Low settings average 44 FPS, which is a 31% drop from 1080p Low. Medium settings average 30 FPS, with a minimum of 25 and maximum of 34. High settings average 25 FPS, and Ultra drops to 19 FPS. None of these figures reach the 60 FPS target, and even the 30 FPS baseline is only met by the Low preset. The gap between Low and Medium at 1440p is 32%, consistent with the scaling observed at 1080p, confirming that the GPU is the bottleneck.

At 3840x2160, the results are uniformly poor. Low settings average 26 FPS, Medium averages 18 FPS (with a minimum of 15 and maximum of 20), High averages 15 FPS, and Ultra averages 11 FPS. The frame rate at 4K Ultra is 83% lower than the peak performance at 1080p Low, illustrating the extreme stress that 4K resolution places on this integrated GPU. The data for 4K also shows that the gap between Low and Medium is 31%, while the gap between Medium and High is 17%, suggesting that the GPU's render output units are saturated and cannot handle additional pixel shading work.

CPU Role

The Intel Core Ultra 5 125H is not the limiting component in Rust, despite the game's reputation for being CPU-intensive. The processor features 14 cores and 18 threads, with a base clock of 3.60 GHz and a boost clock of 4.50 GHz, built on Intel's 7 nm Meteor Lake architecture. Its benchmark results are substantial: a Cinebench R23 multi-core score of 12804.5 and a single-core score of 1647.5, alongside a Passmark multithread score of 21100 and a single-thread score of 3399. These scores place the CPU at the 79th percentile of all CPUs tested, indicating strong processing capability.

The CPU's nearest rivals in the benchmark database provide context for its performance. It is 0.1% slower than the AMD Ryzen 7 5800, 0.3% slower than the Intel Core i5-12600K, and 0.3% slower than the AMD Ryzen 7 5700X, while being 0.5% faster than the AMD Ryzen 3 PRO 5355G. This puts the Core Ultra 5 125H in the same performance class as desktop processors from a previous generation, which should be more than adequate for Rust's simulation and physics workloads. The CPU has an 18 MB shared L3 cache and 2 MB L2 cache per core, which helps with the game's large map data.

The evidence for the CPU not being the bottleneck is in the frame rate scaling. If the CPU were the limiting factor, the frame rates would remain relatively constant across resolution changes, as the CPU work would not increase with pixel count. However, the data shows substantial FPS drops from 1080p to 4K, which is the behavior of a GPU-bound system. The CPU's Passmark physics score of 1439 and data encryption score of 14251 indicate it has ample headroom for game logic, and the fact that it can feed the GPU at 64 FPS on Low settings at 1080p, but the GPU cannot maintain that rate at higher resolutions, confirms the GPU is the primary constraint.

Settings Recommendations

For this configuration, the only setting that provides a consistently playable experience is Low at 1920x1080, which yields an average of 64 FPS. This is the sole preset and resolution combination where the frame rate exceeds the 60 FPS target. The data suggests that users should prioritize frame rate over visual fidelity, as the step up to Medium at 1080p costs 21 FPS (a 33% reduction) and results in an average of 43 FPS, which is still below the 60 FPS threshold and may cause noticeable stutter in fast-paced combat.

The Medium preset at 1080p offers a minimum of 37 FPS, which is above the 30 FPS playability floor, but the average of 43 FPS is not smooth by modern standards. For users who find the visual quality at Low to be too sparse, Medium at 1080p is the only other option that remains above 30 FPS on average. However, the measured minimums for Medium at all resolutions (37 FPS at 1080p, 25 FPS at 1440p, and 15 FPS at 4K) show that frame drops are more pronounced at higher resolutions, making 1080p Medium the second-best choice.

High and Ultra settings are not recommended for this hardware. At 1080p High, the average FPS is 36, which is below the 60 FPS target and only marginally above the 30 FPS baseline. At 1080p Ultra, the average drops to 28 FPS, which is below the minimum threshold for interactive gameplay. The data indicates that the visual improvements from these presets come at too steep a performance cost. Users should also avoid 1440p and 4K entirely; even the Low preset at 1440p only achieves 44 FPS, and at 4K it drops to 26 FPS, making these resolutions impractical for this integrated GPU. The optimal configuration for this system is 1080p with Low settings, sacrificing visual quality for a playable frame rate.