Rust

Resolution Scaling

The measured frame rates for Rust with the Intel Core Ultra 7 155H and NVIDIA GeForce RTX 4080 show a clear and predictable scaling pattern as resolution increases. At 1080p with High settings, the combo produces 117 FPS. Moving to 1440p reduces that to 81 FPS, a 31% drop. At 4K, the average falls to 48 FPS, which is 59% below the 1080p result. This steep decline indicates the rendering load is scaling heavily with pixel count, which is typical for a game like Rust that relies on draw calls and object density.

The Low settings preset tells a similar story across resolutions, but with higher absolute numbers. At 1080p Low, the system hits 201 FPS, which drops to 142 FPS at 1440p (a 29% reduction) and 84 FPS at 4K (a 58% reduction). The percentage losses are nearly identical between Low and High presets, suggesting that the resolution scaling penalty is consistent regardless of the graphical complexity being rendered. This consistency points to the GPU’s memory bandwidth and pixel throughput as the primary limiting factors at higher resolutions, rather than the CPU or the game’s engine logic.

The Medium preset offers the only complete min/max data in the measured set. At 1080p Medium, the average is 139 FPS with a minimum of 118 and maximum of 159. At 1440p Medium, the average drops to 95 FPS, with minimum 81 and maximum 110. At 4K Medium, the average is 56 FPS, with minimum 48 and maximum 65. The gap between minimum and maximum frames widens slightly at 4K compared to 1080p, indicating that frame time variance increases with resolution. The data suggests that the RTX 4080’s 16 GB of GDDR6X memory is sufficient for Rust’s textures at all tested resolutions, but the 256-bit memory bus and 716.8 GB/s bandwidth are being taxed heavily at 4K Ultra, where the average drops to just 36 FPS.

GPU Role

The NVIDIA GeForce RTX 4080 is the dominant component in this pairing for Rust’s frame rate output. The GPU’s boost clock of 2505 MHz and 9728 shading units provide the raw compute necessary to handle Rust’s vegetation, building structures, and dynamic lighting. The 16 GB of GDDR6X memory with a 716.8 GB/s bandwidth ensures that texture streaming does not become a bottleneck, even at 4K resolution where the game’s large open-world map requires frequent asset loading. The data supports this: the 4K High preset achieves 48 FPS, which while not ideal for competitive play, is a playable frame rate for a survival game that prioritizes world persistence over twitch reflexes.

The GPU’s memory configuration is particularly relevant for Rust’s long play sessions. As players build bases and accumulate loot, the game’s memory footprint grows. The 16 GB VRAM capacity prevents the stuttering that would occur if the GPU had to swap textures to system memory. The RTX 4080’s 76 RT cores and 304 tensor cores are not directly exercised by Rust’s traditional rasterization pipeline, but the Ada Lovelace architecture’s efficiency at lower clock speeds compared to previous generations allows the card to maintain consistent performance without thermal throttling in a mobile chassis. The 2205 MHz base clock and 2505 MHz boost clock provide a 13.6% headroom for the GPU to dynamically adjust its clock speed based on thermal and power budgets.

The benchmark results reveal that the GPU is the limiting component at 4K Ultra, where the average FPS of 36 falls below the threshold for smooth gameplay. The pixel rate of 280.6 GPixel/s and texture rate of 761.5 GTexel/s are insufficient to maintain higher frame rates when rust’s Ultra preset enables maximum draw distances and shadow quality. However, at 1080p, the GPU has ample headroom, as evidenced by the 201 FPS result on Low settings. This indicates that the RTX 4080 is not fully utilized at lower resolutions, and the system’s performance is instead constrained by the CPU or game engine’s single-threaded simulation logic.

How This Combo Ranks

The combination of the Intel Core Ultra 7 155H and NVIDIA GeForce RTX 4080 ranks 866th out of 2953 tested combos in Rust, placing it in the 70.7th percentile of all pairings. This is a strong showing, considering that the database includes desktop processors and GPUs with higher power envelopes. The rank reflects the balance between the mobile-class CPU and the high-end discrete GPU. The RTX 4080’s 86th percentile ranking among all GPUs is higher than the CPU’s 83rd percentile among all processors, which suggests the GPU is the stronger component in this pairing for Rust’s workload.

The combo’s mid-tier rank in the overall database is explained by the CPU’s position relative to its nearest rivals. The Intel Core Ultra 7 155H has an average benchmark score of 32697, which is virtually identical to the Intel Core i5-14600T (32707, 0% delta) and the AMD Ryzen AI 7 PRO 360 (32662, 0.1% delta). The AMD Ryzen 5 7400F scores 32750, a -0.2% delta, and the AMD Ryzen 7 PRO 6850H scores 32812, a -0.4% delta. These negligible differences mean that swapping the Ultra 7 155H for any of these CPUs would result in nearly identical Rust performance, provided the GPU remains unchanged.

The GPU’s nearest rivals show a similar pattern of marginal differences. The RTX 4080’s average benchmark score is 54247, compared to 54209 for the RTX 4080 SUPER (0.1% delta), 54828 for the AMD Radeon Pro W5700X (-1.1% delta), 55698 for the AMD Radeon RX 6750 GRE 12 GB (-2.6% delta), and 55757 for the AMD Radeon 8060S (-2.7% delta). The data shows that the RTX 4080 sits at the lower end of this performance cluster, but the differences are within 3%, which would translate to a few frames per second in Rust at most. The combo rank of 866 is therefore a reflection of the system’s overall capability rather than any single component being exceptional.

Settings Recommendations

Based on the measured FPS data, the Medium preset offers the best balance of visual quality and performance for this hardware combination. At 1080p Medium, the system achieves 139 FPS average with a minimum of 118 FPS, which ensures smooth gameplay even during intense firefights or when raiding a large base. The minimum frame rate of 118 FPS is well above the 60 FPS threshold for comfortable play, and the maximum of 159 FPS provides headroom for high-refresh-rate monitors. The Medium preset at 1440p also performs admirably, with an average of 95 FPS and minimum of 81 FPS, making it viable for players with 1440p displays who prioritize smoothness over maximum visual fidelity.

For players with 4K displays, the Medium preset is the highest quality setting that maintains a reasonable frame rate. The 4K Medium result averages 56 FPS with a minimum of 48 FPS, which is playable but may feel slightly sluggish during fast-paced combat. The High preset at 4K drops to 48 FPS average, and while this is still technically playable, the lack of min/max data for High settings means we cannot verify the consistency of frame delivery. The Ultra preset at 4K is not recommended, as the 36 FPS average falls below the standard for smooth gameplay and would likely cause noticeable input lag.

The Low preset, while delivering the highest frame rates (201 FPS at 1080p, 142 FPS at 1440p, 84 FPS at 4K), sacrifices too much visual quality for a game like Rust where environmental awareness is crucial for survival. The Low preset reduces draw distances and disables shadows, making it harder to spot enemies or resources at range. The data shows that the Medium preset at 1080p provides a 19% performance increase over High (139 vs 117 FPS) while maintaining acceptable visual fidelity. At 1440p, the Medium preset’s 95 FPS average is 17% higher than High’s 81 FPS, and at 4K, Medium’s 56 FPS is 17% higher than High’s 48 FPS. This consistent 17-19% improvement across resolutions makes Medium the clear choice for this hardware.

FAQ

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

A: The data shows that 1080p provides the highest frame rates across all settings, with the Medium preset achieving 139 FPS average and the Low preset reaching 201 FPS. At 1440p, the Medium preset maintains 95 FPS average, while 4K Medium drops to 56 FPS. Players with 1440p displays will find the Medium preset suitable, while 1080p is optimal for maximum performance.

Q: Can this system run Rust at 4K smoothly?

A: The 4K Medium preset achieves 56 FPS average with a minimum of 48 FPS, which is playable but not ideal for competitive scenarios. The 4K High preset drops to 48 FPS average, and 4K Ultra falls to 36 FPS. For consistent smoothness, 1440p Medium is recommended over 4K.

Q: How does the RTX 4080 compare to its nearest rivals in this game?

A: The RTX 4080 has an average benchmark score of 54247, which is nearly identical to the RTX 4080 SUPER’s 54209 (0.1% delta). The AMD Radeon Pro W5700X scores 54828 (-1.1% delta), the AMD Radeon RX 6750 GRE 12 GB scores 55698 (-2.6% delta), and the AMD Radeon 8060S scores 55757 (-2.7% delta). These differences are minimal and would result in similar Rust performance.

Q: Is the CPU a bottleneck for this GPU in Rust?

A: The Intel Core Ultra 7 155H ranks in the 83rd percentile among all CPUs, with an average benchmark score of 32697. Its nearest rivals, the Intel Core i5-14600T and AMD Ryzen AI 7 PRO 360, score within 0.1% of it. The data suggests the CPU is not a significant bottleneck at 1080p, where the GPU is the limiting factor, but at higher resolutions the GPU becomes the primary constraint.

Q: What is the maximum frame rate achievable with this combo?

A: The highest measured average frame rate is 201 FPS at 1080p with Low settings. The Medium preset at 1080p achieves 139 FPS, and the High preset reaches 117 FPS. The Ultra preset at 1080p yields 89 FPS, which is still above the 60 FPS threshold for smooth gameplay.

Q: How does this combo rank compared to all tested systems in Rust?

A: This combination ranks 866th out of 2953 tested combos, placing it in the 70.7th percentile. This is a strong result given that the database includes high-end desktop systems with more powerful CPUs and GPUs.

CPU Role

The Intel Core Ultra 7 155H plays a supporting role in this pairing, and its performance characteristics are well-suited for Rust’s simulation-heavy gameplay. The CPU features 16 cores and 22 threads, with a base clock of 3.80 GHz and a boost clock of 4.80 GHz. The Meteor Lake architecture, built on a 7 nm process, provides a balanced mix of performance and efficiency cores that allows the processor to handle Rust’s background simulation tasks while maintaining responsiveness. The 24 MB of shared L3 cache and 2 MB L2 cache per core provide sufficient capacity for the game’s world state data, reducing the need for frequent main memory accesses.

The CPU’s benchmark results indicate solid multi-threaded performance, with a Cinebench R23 multi-core score of 15028 and a single-core score of 1743. The PassMark multi-thread score of 24873 and single-thread score of 3468 further confirm the CPU’s capability. In Rust, which runs a single main simulation thread alongside several worker threads for physics and AI, the CPU’s single-thread performance is crucial. The 4.80 GHz boost clock ensures that the main thread can process game logic quickly, while the 22 threads provide ample parallel processing for background tasks like base construction and resource gathering.

The CPU’s position in the benchmark database shows it is closely matched with several rivals. The Intel Core i5-14600T has an average score of 32707, which is statistically identical to the Ultra 7 155H’s 32697. The AMD Ryzen AI 7 PRO 360 scores 32662, also within 0.1%. This clustering means that any of these CPUs would yield nearly identical Rust performance when paired with the RTX 4080. The CPU’s 28 W TDP is low for a processor with this many cores, making it suitable for mobile systems where thermal management is a concern. The integrated Arc Xe-LPG 128EU graphics are not used for gaming when the discrete RTX 4080 is present, but they allow the system to idle with lower power consumption. Overall, the CPU provides adequate performance to feed the RTX 4080 at 1080p, where the GPU is the limiting factor, and at 4K where the GPU’s workload dominates the frame time.