Rust

The Intel Core Ultra 7 155H paired with the AMD Radeon 890M is a mobile combination that sits near the bottom of the performance hierarchy for Rust. The data places this combo at rank 2783 out of 2953 tested configurations, placing it in the bottom 6% of all system pairings. This is not a hardware set designed for high-refresh competitive play, but rather one that can deliver a playable experience when settings are carefully managed.

Settings Recommendations

The measured data paints a clear picture: this system is heavily GPU-limited in Rust, and the choice of graphics preset is the single biggest factor determining playability. At 1920x1080, the Low preset delivers an average of 68 FPS, which is the only configuration in the entire dataset that approaches a smooth 60+ FPS experience. The Medium preset drops to 46 FPS, while High falls to 38 FPS, and Ultra bottoms out at 29 FPS.

For 2560x1440, the Low preset yields 47 FPS, which is still technically playable but begins to feel sluggish. The Medium preset at 31 FPS and High at 26 FPS are borderline, while Ultra at 20 FPS is a slideshow. At 3840x2160, every preset is effectively unplayable, with Low achieving only 28 FPS and everything else falling below 20 FPS.

The data strongly suggests that the Low preset at 1080p is the only sensible choice for this hardware. The jump from Low to Medium costs 22 FPS at 1080p, a 32% performance hit, while the visual fidelity gains in Rust are modest at those settings. The Medium preset does provide a minimum FPS of 39 at 1080p, which offers some frame-time consistency, but the average of 46 FPS is still well below the 60 FPS threshold that most players target.

If a player insists on higher visual quality, the Medium preset at 1080p is the ceiling. The High and Ultra presets are not recommended, as they drop below 40 FPS and 30 FPS respectively, which will cause noticeable stutter in a game where quick reactions are essential. For 1440p, only the Low preset is viable, and for 4K, none of the presets produce acceptable results.

CPU Role

The Intel Core Ultra 7 155H is a 16-core, 22-thread processor based on the Meteor Lake architecture, fabricated on Intel's 7 nm process. It features a base clock of 3.80 GHz and a boost clock of 4.80 GHz, with a 28 W TDP. The CPU has a 24 MB shared L3 cache, with 2 MB of L2 cache per core and 112 KB of L1 cache per core.

In synthetic benchmarks, this CPU demonstrates strong multi-threaded performance. It scores 15,028 in Cinebench R23 multi-core and 8,754 in Cinebench R20 multi-core. The single-core scores are 1,743 in Cinebench R23 and 1,235 in Cinebench R20. The PassMark multithread score is 24,873, and the single-thread score is 3,468. The CPU's percentile ranking against all CPUs is 83, meaning it outperforms the majority of processors on the market.

However, Rust is known to be a game that is often CPU-bound at lower resolutions, but the data here suggests otherwise. The fact that the 1080p Low preset (68 FPS) is more than double the 4K Low preset (28 FPS) indicates that the GPU is the limiting factor at higher resolutions. At 1080p, the CPU is likely sufficient to feed the iGPU, but the Radeon 890M simply cannot push more frames.

The CPU's nearest rivals in average benchmark score include the Intel Core i5-14600T (deltaPct 0%), AMD Ryzen AI 7 PRO 360 (deltaPct 0.1%), and AMD Ryzen 5 7400F (deltaPct -0.2%). These are all desktop or high-end mobile parts that perform within 0.4% of the Ultra 7 155H, indicating that the CPU is not a bottleneck in this pairing. The CPU's 83rd percentile ranking confirms that it is more than capable of handling Rust's logic and physics calculations.

GPU Role

The AMD Radeon 890M is an integrated GPU based on the RDNA 3.5 architecture, built on a 4 nm process at TSMC. It has 1,024 shading units, 64 texture mapping units, and 32 raster output pipelines, along with 16 ray tracing cores. The GPU operates at a base clock of 400 MHz and boosts up to 2,900 MHz. It draws a TDP of just 15 W and has a system-shared memory configuration, meaning its bandwidth is dependent on the system's DDR5 memory.

In synthetic benchmarks, the 890M scores 8,076 in PassMark G3D, 5,939 TFLOPS in FP32 compute, and 40808 in Geekbench Vulkan. Its percentile ranking against all GPUs is 45, placing it squarely in the mid-range of graphics hardware. The nearest rivals are the AMD Radeon Vega 8 (deltaPct -0.1%), NVIDIA GeForce GTX 960 (deltaPct -0.7%), and NVIDIA GeForce GTX 465 (deltaPct -0.9%). This places the 890M roughly on par with a desktop GTX 960, which is a modest card from several generations ago.

The GPU's performance in Rust is the defining characteristic of this system. The 890M is clearly the bottleneck, as evidenced by the steep FPS drop as resolution increases. At 1080p Low, the GPU manages 68 FPS, but this falls to 47 FPS at 1440p and 28 FPS at 4K. This scaling pattern is typical of a GPU that is struggling to fill pixels, rather than a CPU that is struggling to feed the GPU.

The 890M's memory bandwidth is "System Dependent," which is a critical weakness in Rust. Rust is a game that is heavily dependent on memory bandwidth due to its large, persistent world and frequent asset streaming. The system-shared memory configuration means the iGPU is competing with the CPU for the same DDR5 bandwidth, which can cause stutters and frame drops in busy scenes.

FAQ

Q: What is the best resolution and settings combination for this hardware?

A: The data clearly shows that 1920x1080 with the Low preset is the only configuration that achieves a playable average frame rate, hitting 68 FPS. The Medium preset at 1080p delivers 46 FPS, which is playable but not smooth. All other combinations at higher resolutions or settings fall below 40 FPS.

Q: How does this system compare to other GPUs in synthetic benchmarks?

A: The AMD Radeon 890M scores 8,076 in PassMark G3D, which places it at the 45th percentile of all GPUs. Its nearest rival is the AMD Radeon Vega 8, which is only 0.1% slower, and the NVIDIA GeForce GTX 960, which is 0.7% faster. This indicates the 890M performs like a mid-range desktop GPU from a few years ago.

Q: Is the CPU or GPU the primary bottleneck in Rust?

A: The data strongly indicates the GPU is the bottleneck. The FPS scales almost linearly with resolution: 1080p Low yields 68 FPS, 1440p Low yields 47 FPS, and 4K Low yields 28 FPS. This resolution scaling pattern is characteristic of a GPU-limited scenario, not a CPU-limited one.

Q: What is the minimum FPS observed in the measured data?

A: The only configurations with recorded minimum FPS values are the Medium presets. At 1080p Medium, the minimum FPS is 39. At 1440p Medium, it drops to 27. At 4K Medium, the minimum is 16. These minimum values indicate significant frame-time variance even at the Medium preset.

Q: How does the CPU's synthetic performance translate to Rust?

A: The Intel Core Ultra 7 155H has a PassMark multithread score of 24,873 and a single-thread score of 3,468, placing it at the 83rd percentile of all CPUs. Its nearest rival, the Intel Core i5-14600T, scores nearly identically. This suggests the CPU has ample headroom for Rust's simulation and network code, and is not the limiting factor.

Q: Is the 4K Ultra preset usable on this system?

A: No. The 4K Ultra preset delivers an average of 12 FPS, which is completely unplayable. Even the 4K Low preset only manages 28 FPS. The Radeon 890M simply does not have the pixel throughput or memory bandwidth to handle 4K in Rust.

Resolution Scaling

The measured FPS data reveals a stark resolution scaling curve that leaves no doubt about the system's limitations. At the Low preset, the average FPS drops from 68 at 1080p to 47 at 1440p, a 31% decrease, and then to 28 at 4K, a further 40% decrease. This translates to a total drop of 59% from 1080p to 4K.

The Medium preset shows a similar pattern: 46 FPS at 1080p, 31 FPS at 1440p, and 19 FPS at 4K. The High preset falls from 38 FPS at 1080p to 26 FPS at 1440p and 16 FPS at 4K. The Ultra preset is the most punishing, going from 29 FPS at 1080p to 20 FPS at 1440p and 12 FPS at 4K.

This scaling behavior is a textbook example of a GPU-bound scenario. The frame rate drops roughly in proportion to the increase in pixel count. Going from 1080p to 4K quadruples the pixel count, and the FPS at Low settings drops by roughly a factor of 2.4, which is close to the expected scaling for a GPU that is running out of fill rate and memory bandwidth.

The implication is clear: the AMD Radeon 890M is the limiting component at every resolution. The CPU, which ranks in the 83rd percentile, is not the constraint. This means that lowering resolution is the only effective way to gain performance, and that even at 1080p, the GPU is working at its maximum capacity.

Measured FPS Breakdown

The following is the complete measured FPS data for the Intel Core Ultra 7 155H with AMD Radeon 890M in Rust:

3840x2160 (4K):

• Low: 28 FPS average
• Medium: 19 FPS average, 16 FPS minimum, 21 FPS maximum
• High: 16 FPS average
• Ultra: 12 FPS average

2560x1440 (1440p):

• Low: 47 FPS average
• Medium: 31 FPS average, 27 FPS minimum, 36 FPS maximum
• High: 26 FPS average
• Ultra: 20 FPS average

1920x1080 (1080p):

• Low: 68 FPS average
• Medium: 46 FPS average, 39 FPS minimum, 52 FPS maximum
• High: 38 FPS average
• Ultra: 29 FPS average

The data shows that the Low preset is the only setting that provides an average frame rate above 60 FPS, and it only achieves this at 1080p. The Medium preset offers a playable experience at 1080p with an average of 46 FPS and a minimum of 39 FPS, which is acceptable for a game like Rust where precise aiming is less critical than in a competitive shooter.

The High and Ultra presets are not recommended at any resolution. Even at 1080p, the High preset delivers only 38 FPS, which will result in noticeable stuttering during combat or when loading new areas of the map. The Ultra preset at 1080p drops to 29 FPS, which is below the threshold for smooth gameplay.

At 1440p, the Low preset is the only viable option, providing 47 FPS. The Medium preset at 1440p falls to 31 FPS, which is borderline, and the minimum of 27 FPS indicates frequent drops below 30 FPS. At 4K, no preset is playable, with even the Low preset failing to reach 30 FPS.

The minimum FPS values recorded for the Medium preset are particularly telling. At 1080p, the minimum is 39 FPS, which is only 7 FPS below the average. This suggests that the frame time variance is manageable at this setting. However, at 1440p, the minimum drops to 27 FPS, which is 4 FPS below the average, and at 4K, the minimum is 16 FPS, which is only 3 FPS below the average. The narrowing gap between average and minimum FPS at higher resolutions indicates that the GPU is consistently saturated, leaving no headroom for complex scenes.

This hardware combination is best suited for 1080p gaming at Low or Medium settings. The system ranks in the bottom 6% of all tested configurations for Rust, and the data confirms that it is not capable of delivering high-quality visuals at playable frame rates. Players using this hardware should prioritize frame rate over visual fidelity and stick to the Low preset at 1080p for the best experience.