Rust

Resolution Scaling

The measured FPS data for Rust on this combination of Intel Core Ultra 5 125H and NVIDIA GeForce RTX 4080 reveals a predictable but steep decline as resolution increases. At 1080p with Low settings, the system produces 196 FPS average. Moving to 1440p at the same preset drops the average to 142 FPS, a reduction of 54 FPS or roughly 27.6% from the 1080p result. The jump to 4K at Low further compresses performance to 84 FPS, which is 57.1% lower than the 1080p Low figure. This scaling pattern is consistent with the GPU becoming the primary limiting factor as pixel count rises, though the CPU still exerts influence at lower resolutions.

The Medium preset tells a similar story with slightly different magnitudes. At 1080p Medium, the system averages 139 FPS. At 1440p Medium, that drops to 95 FPS, a 31.7% reduction. At 4K Medium, the average falls to 56 FPS, which is 59.7% below the 1080p Medium result. The High preset shows 117 FPS at 1080p, 81 FPS at 1440p, and 48 FPS at 4K. The percentage drops from 1080p to 4K are consistent across these presets, hovering around 58-60%, which indicates that the RTX 4080's rendering load scales predictably with pixel count.

Ultra settings exhibit the most severe resolution penalty. The system manages 89 FPS at 1080p Ultra, 61 FPS at 1440p Ultra, and only 36 FPS at 4K Ultra. The 1080p-to-4K drop for Ultra is 59.6%, in line with the other presets. However, the absolute numbers at 4K Ultra are low enough to suggest that this configuration, while powerful, cannot deliver a fluid experience at maximum settings in 4K for Rust. The 4K Medium result of 56 FPS with a reported minimum of 48 FPS indicates that even mid-range settings at 4K can dip below the 60 FPS threshold during demanding scenes.

The data shows that resolution scaling is nearly linear in terms of pixel count, but the playability cliff is sharp. At 1080p, every preset except Ultra exceeds 100 FPS, and even Ultra holds at 89 FPS. At 1440p, Low and Medium remain above 90 FPS, but High drops to 81 FPS and Ultra to 61 FPS. At 4K, only Low exceeds 60 FPS, and it does so with a margin of 24 FPS. This pattern strongly indicates that the GPU is the dominant bottleneck at 4K, while at 1080p the CPU's single-thread performance may begin to cap frame rates, particularly on the Low preset where 196 FPS is achieved.

CPU Role

The Intel Core Ultra 5 125H is a 14-core, 18-thread mobile processor based on the Meteor Lake architecture. Its base clock is 3.60 GHz with a boost clock of 4.50 GHz. The processor features 112 KB of L1 cache per core, 2 MB of L2 per core, and 18 MB of shared L3 cache. In the broader benchmark landscape, this CPU sits at the 79th percentile among all tested processors, with an average benchmark score of 27,507. Its nearest rivals in aggregate performance are the AMD Ryzen 7 5800 at 27,535 (0.1% faster), the Intel Core i5-12600K at 27,578 (0.3% faster), and the AMD Ryzen 7 5700X also at 27,578 (0.3% faster). The AMD Ryzen 3 PRO 5355G trails slightly at 27,382, which is 0.5% slower.

In Rust specifically, the CPU's role is most evident at lower resolutions and settings where frame rates exceed 140 FPS. At 1080p Low, the system produces 196 FPS, which is a high enough frame rate that the CPU's ability to feed draw calls and manage game logic becomes significant. The single-thread performance of this CPU, reflected in its Cinebench R23 single-core score of 1,647.5 and Passmark single-thread score of 3,399, is adequate for high-refresh gaming but not exceptional for a desktop-class part. The multi-threaded capabilities, shown by a Cinebench R23 multi-core score of 12,804.5 and Passmark multithread score of 21,100, are more than sufficient for Rust's background simulation tasks.

The boost clock of 4.50 GHz on this mobile chip helps maintain responsiveness, but the 28W TDP indicates the processor is power-constrained compared to desktop counterparts. The data shows that at 1080p, moving from Medium (139 FPS) to Low (196 FPS) yields a 41% performance increase, which suggests that as GPU load decreases, the CPU becomes more involved in determining the ceiling. However, the fact that 1080p Ultra still achieves 89 FPS indicates that the CPU is not severely limiting even at high settings. The architecture's 18 threads are likely well-utilized by Rust, which is known for multi-threaded server and entity processing, but the per-core clock speed is the more critical factor for frame pacing.

Settings Recommendations

Based on the measured FPS rows, the optimal settings balance depends on the target display resolution and refresh rate. For 1080p displays, the Medium preset at 139 FPS average with a minimum of 118 FPS provides a smooth experience that exceeds 120 Hz refresh rates. The High preset at 117 FPS average is also viable, though the 22 FPS gap between Medium and High suggests diminishing returns for the extra visual fidelity. The Low preset at 196 FPS is the highest measured result, but it sacrifices visual quality for frame rates that exceed most 144 Hz displays' capabilities. For 1080p, the Medium preset is the recommended starting point, as it offers the best combination of visual quality and performance headroom.

For 1440p displays, the Medium preset at 95 FPS average with a minimum of 81 FPS is the sweet spot. This provides a solid 60+ FPS experience with margin for dips during intense moments. The High preset at 81 FPS is still playable and offers improved visuals, but the minimum frame rates are not reported for High, making the 95 FPS average of Medium more attractive for consistent pacing. The Ultra preset at 61 FPS is borderline, as it sits right at the 60 FPS threshold, and any scene complexity could push it below playable levels. For 1440p, Medium is recommended for competitive play, while High is acceptable for a more cinematic experience.

For 4K displays, the options are more constrained. The Low preset at 84 FPS is the only setting that provides a comfortable margin above 60 FPS. The Medium preset at 56 FPS average with a minimum of 48 FPS will experience noticeable stuttering in busy areas. The High preset at 48 FPS and Ultra at 36 FPS are not recommended for gameplay. The data indicates that 4K gaming with this combo requires a significant settings compromise, and the Low preset is the only viable choice for maintaining fluid motion. Players seeking higher visual fidelity at 4K would need to accept frame rates in the 36-56 FPS range, which is suboptimal for a survival game where rapid response can be critical.

FAQ

Q: Can this system run Rust at 4K with smooth frame rates?

A: Only at the Low preset, which averages 84 FPS. The Medium preset averages 56 FPS with a minimum of 48 FPS, while High and Ultra average 48 FPS and 36 FPS respectively. For consistent 60+ FPS at 4K, Low settings are required.

Q: What is the best preset for a 1440p 144Hz monitor?

A: The Medium preset at 95 FPS average is the highest measured setting that stays above 81 FPS minimum. The Low preset achieves 142 FPS but sacrifices visual quality. Neither reaches 144 FPS, so a 120Hz display would be better paired with the Medium preset.

Q: How does the CPU compare to its nearest rivals in synthetic benchmarks?

A: The Intel Core Ultra 5 125H scores 27,507 on average, placing it 0.1% behind the AMD Ryzen 7 5800 (27,535), 0.3% behind the Intel Core i5-12600K (27,578), and 0.3% behind the AMD Ryzen 7 5700X (27,578). It is 0.5% ahead of the AMD Ryzen 3 PRO 5355G (27,382).

Q: Is the RTX 4080's 16 GB VRAM sufficient for Rust at high settings?

A: The benchmark data shows that the GPU handles all tested settings and resolutions without VRAM-related failures. The 716.8 GB/s memory bandwidth and 16 GB GDDR6X memory are not limiting factors in any measured configuration, as frame rates scale consistently with pixel count rather than exhibiting sudden drops.

Q: What frame rate can I expect at 1080p Ultra?

A: The measured average is 89 FPS. This is the lowest 1080p result across presets but remains playable. For comparison, 1080p High averages 117 FPS, Medium averages 139 FPS, and Low averages 196 FPS.

Q: How does this combo rank among all tested combinations for Rust?

A: This specific combination of Intel Core Ultra 5 125H and NVIDIA GeForce RTX 4080 ranks 872nd out of 2,953 tested combos for Rust, placing it in the 70th percentile of all measured systems.

GPU Role

The NVIDIA GeForce RTX 4080 is built on the Ada Lovelace architecture with an AD103 chip fabricated on a 5 nm process by TSMC. It contains 45,900 million transistors on a 379 mm² die. The GPU operates at a base clock of 2,205 MHz and boosts to 2,505 MHz. Memory is 16 GB of GDDR6X on a 256-bit bus, delivering 716.8 GB/s of bandwidth. The GPU features 9,728 shading units, 304 texture mapping units, and 112 raster output pipelines. It also includes 76 ray tracing cores and 304 tensor cores. The pixel rate is 280.6 GPixel/s, and the texture rate is 761.5 GTexel/s. Floating point performance is rated at 48.74 TFLOPS for both FP32 and FP16.

In the aggregate GPU benchmark landscape, this card sits at the 86th percentile among all GPUs, with an average benchmark score of 54,247. Its nearest rivals are the NVIDIA GeForce RTX 4080 SUPER at 54,209 (0.1% faster), the AMD Radeon Pro W5700X at 54,828 (1.1% faster), the AMD Radeon RX 6750 GRE 12 GB at 55,698 (2.6% faster), and the AMD Radeon 8060S at 55,757 (2.7% faster). The 320W TDP and triple-slot design indicate this is a high-power desktop-class GPU, despite being paired with a mobile CPU in this test configuration.

The GPU's role in Rust becomes increasingly dominant as resolution rises. At 4K, the difference between Low and Ultra settings is 48 FPS (84 vs. 36), which is a 133% performance spread. This wide gap underscores how much the GPU's rasterization and shading capabilities are stressed at high pixel counts with elevated settings. The 16 GB VRAM capacity is more than sufficient for Rust's texture and asset requirements, as evidenced by the lack of any anomalous frame rate collapses in the data. The memory bandwidth of 716.8 GB/s ensures that texture streaming at 4K does not become a bottleneck, allowing the GPU's compute units to remain the limiting factor.

Measured FPS Breakdown

At 3840x2160 (4K), the measured results are as follows: Low settings produce an average of 84 FPS. Medium settings yield 56 FPS average, with a minimum of 48 FPS and a maximum of 65 FPS. High settings drop to 48 FPS average. Ultra settings produce the lowest result at 36 FPS average. The spread from Low to Ultra at 4K is 48 FPS, representing a 133% performance difference.

At 2560x1440 (1440p), the results improve substantially. Low settings achieve 142 FPS average. Medium settings average 95 FPS, with a minimum of 81 FPS and a maximum of 110 FPS. High settings average 81 FPS. Ultra settings average 61 FPS. The spread from Low to Ultra at 1440p is 81 FPS, which is a 133% difference, identical to the 4K relative spread.

At 1920x1080 (1080p), the system performs best. Low settings deliver 196 FPS average. Medium settings average 139 FPS, with a minimum of 118 FPS and a maximum of 159 FPS. High settings average 117 FPS. Ultra settings average 89 FPS. The spread from Low to Ultra at 1080p is 107 FPS, representing a 120% difference, slightly narrower than the higher resolutions.

Comparing across resolutions at the same settings: Low preset drops from 196 FPS at 1080p to 142 FPS at 1440p (a 27.6% reduction) and then to 84 FPS at 4K (a 40.8% reduction from 1440p). Medium preset drops from 139 FPS at 1080p to 95 FPS at 1440p (31.7% reduction) and then to 56 FPS at 4K (41.1% reduction). High preset drops from 117 FPS at 1080p to 81 FPS at 1440p (30.8% reduction) and then to 48 FPS at 4K (40.7% reduction). Ultra preset drops from 89 FPS at 1080p to 61 FPS at 1440p (31.5% reduction) and then to 36 FPS at 4K (41.0% reduction). The consistent pattern of approximately 30% reduction from 1080p to 1440p and 41% reduction from 1440p to 4K indicates a GPU-bound scenario at all settings.

How This Combo Ranks

This specific combination of the Intel Core Ultra 5 125H and NVIDIA GeForce RTX 4080 ranks 872nd out of 2,953 tested combinations for Rust. This places the combo in the 70.5th percentile of all measured systems, meaning it outperforms roughly 70% of tested configurations while being outperformed by the top 30%. The rank reflects the overall balance of CPU and GPU capabilities in the context of Rust's specific performance demands.

The CPU's 79th percentile ranking among all processors and the GPU's 86th percentile ranking among all GPUs suggest that the GPU is the stronger component in this pairing. The combo's 872nd rank out of 2,953 is slightly lower than what each component's individual percentile might suggest, which could indicate that Rust's performance characteristics do not fully leverage the strengths of either component. The mobile CPU's power constraints and the desktop GPU's high throughput create a pairing where the GPU is often waiting on CPU-bound frame pacing at lower resolutions, while at higher resolutions the GPU becomes the clear bottleneck.

Compared to the nearest rival GPU, the RTX 4080 SUPER is 0.1% faster in aggregate benchmarks, which would likely translate to a marginally better Rust experience. The AMD Radeon Pro W5700X, RX 6750 GRE 12 GB, and Radeon 8060S are 1.1%, 2.6%, and 2.7% faster respectively in general GPU benchmarks, but their performance in Rust specifically is not measured in this data. The combo's overall rank suggests that while this system is capable of strong performance in Rust, particularly at 1080p and 1440p with medium settings, it is not among the elite configurations tested. The 4K Ultra result of 36 FPS and 4K High result of 48 FPS are the weakest outcomes, and they contribute to the middle-tier ranking despite the strong 1080p Low result of 196 FPS.