Rust

How This Combo Ranks

In Rust, this Intel Core Ultra 5 125H + NVIDIA GeForce RTX 5090 Mobile combination sits at rank 760 out of 3723 tested combos. That places it in the top 20.4% of all configurations benchmarked for this game. The data indicates a strong pairing, though not an elite one — the ranking reflects a CPU that is solidly mid-range for mobile parts and a GPU that is among the fastest available in laptops.

The CPU's own percentile against all processors is 79, meaning it outperforms roughly four out of five CPUs in general compute. The GPU sits at the 84th percentile against all graphics cards. When combined in Rust, these two parts produce frame rates that are competitive with desktop-class setups from a few generations ago, but the combo rank of 760 suggests that roughly 2,963 other combinations deliver higher average FPS in this specific title. That gap is largely attributable to the CPU, which trails the GPU in relative standing.

Benchmark results show the CPU's average benchmark score is 27,507, placing it within 0.1% of the AMD Ryzen 7 5800 (average score 27,535) and 0.3% behind the Intel Core i5-12600K and AMD Ryzen 7 5700X (both at 27,578). The CPU is 0.5% ahead of the AMD Ryzen 3 PRO 5355G (27,382). These are narrow margins, indicating the 125H performs essentially on par with those desktop chips in general workloads. For Rust, which is known to be CPU-intensive, this level of processing power matters significantly.

The GPU's average benchmark score is 45,152, which is 0.5% below the AMD Radeon Pro 5500 XT (45,384), 0.8% above the NVIDIA GeForce RTX 4070 Ti (44,795), 1% below the Intel Arc A730M (45,592), and 1.8% below the NVIDIA RTX 5880 Ada Generation (45,972). This positions the mobile RTX 5090 as roughly equivalent to a desktop RTX 4070 Ti in raw compute, which is remarkable for a laptop part with a 95 W TDP.

GPU Role

The NVIDIA GeForce RTX 5090 Mobile is built on the Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. The chip, designated GB203, contains 45,600 million transistors on a 378 mm² die, giving it a transistor density of 120.6 million per square millimeter. This is a massive chip for a mobile GPU, and the data shows it is the dominant factor in this combo's Rust performance.

Memory configuration is substantial: 24 GB of GDDR7 on a 256-bit bus, yielding a bandwidth of 896.0 GB/s. Memory clocks run at 1750 MHz with 28 Gbps effective speed. This is important for Rust, which can consume significant VRAM at higher resolutions. The 24 GB capacity means memory pressure is unlikely to be a limiting factor even at 4K Ultra settings, where the average FPS drops to 41 but remains playable.

The GPU has 10,496 shading units, 328 texture mapping units, and 112 raster operation pipelines. It also features 82 ray tracing cores and 328 tensor cores. Pixel rate is 169.7 GPixel/s, texture rate is 496.9 GTexel/s, and FP32 compute is 31.80 TFLOPS. FP16 performance matches at 31.80 TFLOPS with a 1:1 ratio. Base clock is 990 MHz with a boost of 1515 MHz. The TDP is 95 W, which is modest for the performance delivered.

Benchmark scores for the GPU show a Passmark G3D score of 30,034 and a Passmark GPU Compute score of 13,401. In 3DMark Steel Nomad DX12, it scores 5,871. Geekbench scores are 201,834 for OpenCL and 198,405 for Vulkan. The Passmark DirectX scores are notably lower: 324 for DX9, 269 for DX11, 183 for DX10, and 138 for DX12. These lower DX scores are typical for newer architectures where older API paths are less optimized.

In Rust, the GPU's role becomes clear when examining FPS scaling across settings. At 4K, dropping from High to Low settings increases average FPS from 54 to 96 — a 77.8% improvement. At 1440p, the same settings change yields an increase from 92 to 163 FPS, a 77.2% improvement. At 1080p, Low settings hit 196 FPS versus 134 FPS on High, a 46.3% improvement. The GPU clearly has headroom; the CPU becomes more of a factor at lower resolutions and settings.

CPU Role

The Intel Core Ultra 5 125H is a Meteor Lake part, built on Intel's 7 nm process. It has 14 cores and 18 threads, with a base clock of 3.60 GHz and a boost clock of 4.50 GHz. The TDP is 28 W, and it uses the Intel BGA 2049 socket. Cache configuration includes 112 KB of L1 per core, 2 MB of L2 per core, and 18 MB of shared L3. Memory support is DDR5, dual-channel, with a bandwidth of 89.6 GB/s. It supports PCIe Gen 5 and includes integrated Arc Xe-LPG graphics with 96 execution units.

This CPU's benchmark results reveal its character. In Cinebench R23, it scores 12,804.5 multi-core and 1,647.5 single-core. Cinebench R20 scores are 7,161 multi-core and 1,010 single-core. Cinebench R15 scores are 2,021.5 multi-core and 241 single-core. Passmark results include a multi-thread score of 21,100, single-thread of 3,399, and physics score of 1,439. Integer math scores 69,986, floating point math 51,670, and data compression 236,209. Data encryption scores 14,251, extended instructions 13,749, find prime numbers 88, and random string sorting 27,435.

The single-core performance is adequate but not outstanding — the Cinebench R23 single-core score of 1,647.5 is modest compared to modern desktop parts. For Rust, single-threaded performance matters because the game's simulation logic often runs on one or a few threads. The multi-core score of 12,804.5 indicates the CPU can handle background tasks and other threads, but the game's core logic may be bottlenecked by that single-core figure.

Rival comparisons show the CPU is essentially average for its class. It is 0.1% behind the AMD Ryzen 7 5800, 0.3% behind both the Intel Core i5-12600K and AMD Ryzen 7 5700X, and 0.5% ahead of the AMD Ryzen 3 PRO 5355G. These deltas are within noise, meaning the 125H performs equivalently to those desktop CPUs in aggregate benchmarks. The launch MSRP is $375, which positions it as a mid-range mobile processor.

In Rust, the CPU's influence appears when looking at the gap between 1080p and 1440p performance at the same settings. At High settings, 1080p averages 134 FPS while 1440p averages 92 FPS — a 31.3% drop. At Low settings, 1080p averages 196 FPS versus 163 FPS at 1440p — a 16.8% drop. The smaller percentage drop at Low settings suggests the CPU is starting to limit frame rates when the GPU has less work to do.

Measured FPS Breakdown

At 1920x1080, the measured averages are 196 FPS on Low, 159 FPS on Medium, 134 FPS on High, and 102 FPS on Ultra. Medium settings show a minimum of 135 FPS and maximum of 183 FPS. These figures indicate that 1080p is well within the capabilities of this combo at all settings. Even Ultra, which typically imposes heavy draw distance and object density penalties in Rust, maintains triple-digit averages.

At 2560x1440, averages drop to 163 FPS on Low, 109 FPS on Medium, 92 FPS on High, and 70 FPS on Ultra. Medium settings show a minimum of 93 FPS and maximum of 126 FPS. The transition from High to Ultra at 1440p costs 22 FPS, a 23.9% reduction. From Medium to High, the cost is 17 FPS, a 15.6% reduction. These steps are consistent with the GPU's compute budget being consumed by more demanding settings.

At 3840x2160, averages are 96 FPS on Low, 65 FPS on Medium, 54 FPS on High, and 41 FPS on Ultra. Medium settings show a minimum of 55 FPS and maximum of 74 FPS. At 4K, the combo begins to show strain. Ultra settings dip below 45 FPS, which many players would find borderline for a competitive survival game. Low settings at 4K remain smooth at 96 FPS, but the visual compromise is significant.

Comparing across resolutions at the same settings reveals scaling patterns. On Low, 1080p to 1440p is a 16.8% drop, and 1440p to 4K is a 41.1% drop. On Medium, 1080p to 1440p is a 31.4% drop, and 1440p to 4K is a 40.4% drop. On High, 1080p to 1440p is a 31.3% drop, and 1440p to 4K is a 41.3% drop. On Ultra, 1080p to 1440p is a 31.4% drop, and 1440p to 4K is a 41.4% drop. The consistent ~40% drop from 1440p to 4K suggests the GPU is pixel-bound at that resolution, while the ~31% drop from 1080p to 1440p indicates a mix of pixel and geometry load.

The data shows a clear pattern: Low settings provide the highest frame rates at every resolution, with 4K Low (96 FPS) outperforming 1080p Ultra (102 FPS) only slightly. Medium settings at 1440p (109 FPS) beat High settings at 1080p (134 FPS) by a smaller margin than the resolution difference would suggest. This indicates that Medium is a sweet spot for balancing visual fidelity and performance.

FAQ

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

A: The data shows 2560x1440 on Medium settings delivers 109 FPS average with a min of 93 FPS and max of 126 FPS. This provides a substantial improvement over 4K Medium (65 FPS) while retaining more detail than 1080p Low (196 FPS). For competitive play, 1080p Low at 196 FPS is optimal, but for visual quality with smooth gameplay, 1440p Medium is the measured sweet spot.

Q: Can this combo handle 4K gaming in Rust?

A: Yes, but with compromises. At 4K Low, the average is 96 FPS, which is smooth. At 4K Medium, it drops to 65 FPS with a min of 55 FPS. High settings at 4K yield 54 FPS, and Ultra drops to 41 FPS. The 24 GB of GDDR7 VRAM provides ample memory, but the GPU's compute power limits high-settings 4K performance.

Q: How does the CPU compare to its direct rivals?

A: The Intel Core Ultra 5 125H has an average benchmark score of 27,507. This is 0.1% below the AMD Ryzen 7 5800 (27,535), 0.3% below the Intel Core i5-12600K (27,578), 0.3% below the AMD Ryzen 7 5700X (27,578), and 0.5% above the AMD Ryzen 3 PRO 5355G (27,382). In practical terms, performance is statistically identical to these parts.

Q: Is the RTX 5090 Mobile faster than a desktop RTX 4070 Ti?

A: The average benchmark scores are very close. The RTX 5090 Mobile scores 45,152, which is 0.8% above the desktop RTX 4070 Ti's score of 44,795. The RTX 5090 Mobile is 0.5% below the AMD Radeon Pro 5500 XT (45,384), 1% below the Intel Arc A730M (45,592), and 1.8% below the NVIDIA RTX 5880 Ada Generation (45,972). This indicates near-parity with desktop mid-range cards.

Q: What causes the FPS difference between Low and Ultra settings?

A: At 1080p, Low averages 196 FPS while Ultra averages 102 FPS — a 92% difference. At 1440p, the gap is 163 FPS versus 70 FPS, a 133% difference. At 4K, Low averages 96 FPS versus 41 FPS on Ultra, a 134% difference. The larger relative gaps at higher resolutions suggest that Ultra settings disproportionately increase GPU load, particularly in pixel-heavy effects.

Q: Does the combo rank improve at lower resolutions?

A: The combo rank of 760 out of 3723 is a global figure for Rust, not resolution-specific. However, the measured FPS data shows that at 1080p, the combo is likely near the top of the distribution since it achieves 196 FPS on Low and 134 FPS on High. At 4K Ultra, the 41 FPS average would place it lower relative to other combos that can maintain higher 4K frame rates.

Settings Recommendations

Based on the measured data, the optimal settings depend on your display and priorities. For 1080p displays, High settings at 134 FPS average provides a strong balance of visual quality and headroom. Ultra at 102 FPS is also playable and offers maximum detail. Low settings at 196 FPS are only recommended for competitive scenarios where every frame counts.

For 1440p displays, Medium settings at 109 FPS average with a 93 FPS minimum is the best measured configuration. This maintains smooth gameplay while preserving decent visual fidelity. High settings at 92 FPS are acceptable, but the 17 FPS cost over Medium may not justify the visual gains. Ultra at 70 FPS is borderline for fast-paced play.

For 4K displays, Low settings at 96 FPS is the only configuration that provides consistently smooth performance. Medium at 65 FPS with a 55 FPS minimum is playable but may feel inconsistent. High at 54 FPS and Ultra at 41 FPS are not recommended for competitive Rust play. The 24 GB VRAM is not the constraint; the GPU's compute throughput is.

The general pattern across all resolutions is that Medium provides the best performance-per-visual-cost ratio. The delta between Low and Medium is smaller at higher resolutions (32% at 1080p, 33% at 1440p, 32% at 4K) than between Medium and High (16% at 1080p, 16% at 1440p, 17% at 4K). Ultra adds a further 24% cost over High at every resolution. Given that Rust's visual differences between Medium and High are often subtle in outdoor scenes but significant in lighting, Medium is the recommended starting point, with adjustments upward only if frame rates allow headroom.