Rust

Rust places extreme demands on both processor and graphics hardware, and the AMD Ryzen AI Max+ 395 paired with the NVIDIA GeForce RTX 4080 Mobile produces a distinctive performance profile across resolutions and settings. The data shows a system capable of high refresh-rate play at 1080p, but one that becomes increasingly GPU-bound at 4K, with the CPU’s substantial multi-threaded throughput providing a strong foundation for a game known for its simulation-heavy world.

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen AI Max+ 395 is a 16-core, 32-thread processor built on the Zen 5 architecture (Strix Halo), with a base clock of 3.00 GHz and a boost clock of 5.10 GHz. It features a shared 64 MB L3 cache and a per-core L2 cache of 1 MB, alongside an 80 KB L1 cache per core. This configuration places it in the top percentile of CPUs, with a percentile rank of 95 against all processors, and its average benchmark score of 77,740 reflects a very high level of overall compute capability.

In the context of Rust, the CPU’s role is significant because the game’s server-side simulation and physics calculations are heavily single-threaded, while client-side tasks like compiling shaders and managing entity interactions can leverage multiple cores. The Ryzen AI Max+ 395’s single-thread performance, as indicated by a Cinebench R23 single-core score of 2,044 and a Geekbench single-core score of 2,464, is strong but not class-leading. Its multi-core performance, however, is exceptional: a Cinebench R23 multi-core score of 35,314 and a Geekbench multi-core score of 20,992 place it well above typical mobile processors.

Benchmark results indicate that the CPU’s 16 cores and 32 threads are fully utilized in Rust’s more demanding scenes, particularly when many players, buildings, and entities are present. The CPU’s Passmark multi-thread score of 54,934 and its floating-point math score of 128,682 suggest that complex physics calculations and world-state updates are handled without bottlenecking the GPU. Compared to its nearest rivals, the Ryzen AI Max+ 395 is 1.6% faster in average benchmark score than the AMD Ryzen Threadripper PRO 9945WX and the AMD EPYC Embedded 8224P, and it is 2% faster than the AMD Ryzen 9 8945HX. It trails the Intel Core i9-14900K by 1.7%, but the gap is narrow enough that in a game like Rust, the difference is unlikely to be perceptible in most gameplay scenarios.

The CPU’s 55 W TDP, while modest for a desktop-class chip, is typical for a high-end mobile processor. The data shows that the Ryzen AI Max+ 395 does not appear to be the limiting factor in Rust at lower resolutions; instead, it provides ample headroom for the GPU to work. At 1080p Low settings, the system achieves 207 FPS, which indicates that the CPU can feed the GPU with enough frames to saturate a high-refresh-rate display. The CPU’s cache hierarchy, particularly the 64 MB shared L3, is beneficial for Rust’s asset streaming and procedural world generation, as it reduces the need to fetch data from system memory.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the highest average FPS this combo achieves in Rust, and at what settings?

A: The highest average FPS is 207, achieved at 1920x1080 resolution with Low settings. This is followed by 142 FPS at 2560x1440 Low, and 84 FPS at 3840x2160 Low.

Q: How does the CPU compare to the Intel Core i9-14900K in overall benchmark score?

A: The AMD Ryzen AI Max+ 395 has an average benchmark score of 77,740, which is 1.7% lower than the Intel Core i9-14900K’s average score of 79,097. This places the two processors in a very similar performance tier.

Q: What is the GPU’s percentile ranking among all graphics cards?

A: The NVIDIA GeForce RTX 4080 Mobile has a percentile rank of 81 among all GPUs, indicating that it outperforms the majority of graphics cards currently benchmarked.

Q: At which resolution and settings does the system dip below 60 FPS on average?

A: The system falls below 60 FPS at 3840x2160 with Ultra settings, where it averages 36 FPS. At 3840x2160 High, it averages 48 FPS, which is also below the 60 FPS threshold.

Q: What is the GPU’s memory bandwidth, and how does it compare to the CPU’s?

A: The GPU has a memory bandwidth of 432.0 GB/s, while the CPU has a memory bandwidth of 256.0 GB/s. The GPU’s higher bandwidth is crucial for handling texture data and frame buffers at high resolutions.

Q: How many combos does this system rank above in Rust?

A: This combo ranks 1167th out of 3,723 tested combos in Rust, placing it in the top 31% of all systems tested.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data reveals a clear pattern of resolution scaling that points to the GPU as the primary limiter at higher resolutions. At 1080p Low, the system produces 207 FPS. Moving to 1440p Low, the average drops to 142 FPS, a 31% reduction. At 4K Low, the average falls to 84 FPS, which is a 59% drop from the 1080p Low figure. This scaling is consistent with a GPU that is increasingly stressed as pixel count increases.

The pattern is similar across all settings. At High settings, the system averages 117 FPS at 1080p, 81 FPS at 1440p, and 48 FPS at 4K. The drop from 1080p to 1440p is 31%, and from 1080p to 4K is 59%. At Medium settings, the averages are 139 FPS at 1080p, 95 FPS at 1440p, and 56 FPS at 4K. The percentage drops are nearly identical, which suggests that the rendering workload scales uniformly with resolution, independent of the quality preset.

This uniformity indicates that the CPU is not the bottleneck at higher resolutions. If the CPU were limiting, the FPS would tend to plateau as resolution increases, because the CPU would be unable to feed the GPU with more frames. Instead, the FPS continues to drop proportionally with the increase in pixel count, which is a hallmark of a GPU-bound scenario. The Ryzen AI Max+ 395’s strong multi-threaded performance ensures that it can keep up with the RTX 4080 Mobile’s demands even at 1080p, where the GPU is less stressed.

The data shows that at 4K Ultra, the system averages 36 FPS, which is below the playable threshold for most gamers. At 4K High, it averages 48 FPS, which is borderline. The GPU’s 12 GB of VRAM and 432.0 GB/s of bandwidth are sufficient for 4K textures, but the raw compute power of the RTX 4080 Mobile is not enough to maintain high frame rates at Ultra settings. The scaling from 1080p to 4K demonstrates that for a smooth 4K experience, users would need to lower settings to Medium (56 FPS) or Low (84 FPS).

How This Combo Ranks — use comboRankInGame vs other tested combos

In Rust, this specific combination of the AMD Ryzen AI Max+ 395 and the NVIDIA GeForce RTX 4080 Mobile ranks 1167th out of 3,723 tested combos. This places the system in the 69th percentile of all tested configurations, meaning it outperforms roughly two-thirds of systems but is not in the top tier. Given the CPU’s 95th percentile ranking and the GPU’s 81st percentile ranking, the overall combo rank of 1167th suggests that the system is balanced but not exceptional.

The rank is influenced by the fact that Rust is a game that can be heavily CPU-bound in certain scenarios, particularly with large player counts and complex bases. The Ryzen AI Max+ 395’s multi-threaded capabilities are well-suited for this, but the GPU’s performance at higher resolutions pulls the combo rank down. The data shows that at 1080p, the system is capable of very high frame rates, which would place it favorably against many other combos that might have weaker CPUs. However, at 4K, the GPU becomes the limiting factor, and the system’s performance drops to levels that many desktop-based combos with higher-end GPUs would exceed.

The combo’s rank of 1167th indicates that while this is a powerful mobile platform, it is not the fastest in Rust. There are likely many desktop combos with RTX 4090-class GPUs and high-end desktop CPUs that rank higher, particularly at 4K. However, within the mobile segment, this combo is likely near the top, given the RTX 4080 Mobile’s 81st percentile GPU ranking and the CPU’s 95th percentile ranking. The combination of a top-tier mobile CPU and a high-end mobile GPU provides a strong, balanced platform for Rust at 1080p and 1440p, but it falls short of the absolute highest performance tiers at 4K.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data provides a comprehensive view of performance across three resolutions and four quality presets. At 1920x1080, the system achieves an average of 207 FPS on Low settings, 139 FPS on Medium (with a minimum of 118 FPS and a maximum of 159 FPS), 117 FPS on High, and 89 FPS on Ultra. The 1080p results show a clear scaling with settings, with Low being more than double the performance of Ultra. The minimum FPS recorded at 1080p Medium is 118, which is still well above the 60 FPS threshold for smooth gameplay.

Moving to 2560x1440, the averages drop to 142 FPS on Low, 95 FPS on Medium (with a minimum of 81 FPS and a maximum of 110 FPS), 81 FPS on High, and 61 FPS on Ultra. The 1440p results indicate that the system can handle this resolution well on most settings, with only Ultra dipping to 61 FPS, which is still just above the 60 FPS line. The minimum FPS at 1440p Medium is 81, which suggests that even in demanding scenes, the frame rate remains playable.

At 3840x2160, the performance drops significantly. The system averages 84 FPS on Low, 56 FPS on Medium (with a minimum of 48 FPS and a maximum of 65 FPS), 48 FPS on High, and 36 FPS on Ultra. The 4K results show that the system is not capable of maintaining 60 FPS at Medium or higher settings. The minimum FPS at 4K Medium is 48, which is below the playable threshold for many users. The data shows a clear trend: as resolution increases, the average FPS decreases, and the minimum FPS at Medium settings also drops, indicating that the GPU is struggling to keep up with the pixel workload.

The FPS delta from 1080p to 4K is consistent across settings, with Low settings dropping from 207 to 84 FPS, Medium from 139 to 56 FPS, High from 117 to 48 FPS, and Ultra from 89 to 36 FPS. This consistency reinforces the conclusion that the GPU is the primary limiter at higher resolutions, as the percentage drop is nearly identical for each preset.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS data, the optimal settings depend heavily on the target resolution and the user’s frame rate preferences. At 1920x1080, the High preset offers an excellent balance, with an average FPS of 117. This is well above the 60 FPS threshold and provides a significant visual improvement over Medium (139 FPS) and Low (207 FPS). For users with 144 Hz or higher refresh rate monitors, the Medium preset at 139 FPS is also a strong choice, offering a smoother experience at the cost of some visual fidelity. The Ultra preset at 89 FPS is still playable but may not be worth the performance hit unless the user prioritizes maximum visual quality.

At 2560x1440, the High preset delivers an average of 81 FPS, which is above the 60 FPS threshold and provides a good visual experience. The Medium preset at 95 FPS is a better choice for users with 144 Hz displays, as it offers a higher frame rate while still maintaining decent visuals. The Ultra preset at 61 FPS is borderline, and users may experience drops below 60 FPS in demanding scenes, making it less ideal. The Low preset at 142 FPS is overkill for most displays and sacrifices too much visual quality.

At 3840x2160, the system struggles to maintain high frame rates. The Low preset at 84 FPS is the only setting that provides a consistently smooth experience above 60 FPS. The Medium preset at 56 FPS is playable but may experience dips to 48 FPS in heavy scenes, which could be noticeable. The High preset at 48 FPS and Ultra at 36 FPS are not recommended for competitive play or smooth gameplay. For 4K, the Low preset is the best choice for maintaining a playable frame rate, while Medium is a compromise for users who prioritize visual quality over frame rate stability.

Overall, the data suggests that the High preset is the best default choice for 1080p and 1440p, offering a good balance of visual quality and performance. At 4K, users should stick to Low or Medium settings to avoid frame rate drops below the playable threshold.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4080 Mobile is a high-end mobile GPU based on the Ada Lovelace architecture, with a chip designated as AD104. It features 7,424 shading units, 232 texture mapping units, and 80 raster operation pipelines, along with 58 ray tracing cores and 232 tensor cores. The GPU operates at a base clock of 1290 MHz and a boost clock of 1665 MHz, with a memory clock of 2250 MHz (18 Gbps effective). It is equipped with 12 GB of GDDR6 memory on a 192-bit bus, providing a memory bandwidth of 432.0 GB/s.

In Rust, the GPU’s role is primarily to render the game’s vast open-world environments, including terrain, buildings, and dynamic lighting. The 12 GB VRAM is sufficient for 1080p and 1440p textures, and even at 4K, the game’s texture data fits within this capacity. However, the GPU’s compute power, as indicated by its FP32 performance of 24.72 TFLOPS, is the limiting factor at higher resolutions. The data shows that at 4K Ultra, the system averages only 36 FPS, which is well below the 60 FPS threshold, indicating that the GPU is fully saturated.

The RTX 4080 Mobile’s percentile rank of 81 among all GPUs places it in the upper tier of graphics cards, but it is not at the very top. Its nearest rival, the NVIDIA GeForce RTX 5080 Mobile, has an average benchmark score of 38,349, which is 0.6% higher, while the RTX 4080 Mobile’s score is 38,135. The GPU’s Passmark G3D score of 24,926 and Geekbench OpenCL score of 159,575 reflect its strong compute capabilities. However, in Rust, the GPU’s performance is not exceptional at 4K, as evidenced by the FPS data.

The GPU’s memory bandwidth of 432.0 GB/s is more than sufficient for Rust’s asset streaming, and the 12 GB VRAM ensures that there are no texture pop-ins or stutters due to memory limitations. The GPU’s DirectX 12 Ultimate support (12_2) is fully utilized by Rust, which uses modern rendering features. The data indicates that the RTX 4080 Mobile is a capable GPU for 1080p and 1440p gaming, but it is not powerful enough to deliver high frame rates at 4K with high visual settings. The GPU’s performance at 4K is the primary reason the combo ranks 1167th rather than higher, as the CPU provides ample headroom but the GPU cannot keep up with the pixel workload.