Rust

# 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 mobile processor built on the Zen 5 architecture, codenamed Strix Halo. It operates with a base clock of 3.00 GHz and a boost clock of 5.10 GHz, with a TDP of 55 W. The chip features 80 KB of L1 cache per core, 1 MB of L2 cache per core, and a shared 64 MB L3 cache. Its memory subsystem is LPDDR5X with quad-channel support, offering a bandwidth of 256.0 GB/s. The processor is fabricated on TSMC's 4 nm process node and uses the AMD Socket FP11.

In Rust, the CPU's role is substantial because the game's simulation, including entity updates, building integrity checks, and server-side logic, heavily depends on single-thread performance. The processor's single-core Cinebench R23 score of 2044 and Geekbench single-core score of 2464 reflect strong per-thread capability. However, Rust can also utilize multiple threads for tasks like terrain generation and resource processing, where the chip's multi-threaded Cinebench R23 score of 35314 and Geekbench multi-core score of 20992 provide ample headroom.

The benchmark data shows that at 1080p Low settings, this combo reaches 237 FPS, indicating that the CPU is not the limiting factor at lower resolutions and settings. Even at 4K Ultra, where the GPU is heavily stressed, the CPU still manages to feed the graphics card adequately, as evidenced by the 41 FPS result. The processor's 95th percentile ranking among all CPUs, with an average benchmark score of 77740, places it in the top tier of available processors.

Comparing to nearest rivals, the Ryzen AI Max+ 395 scores 1.6% higher than the AMD Ryzen Threadripper PRO 9945WX (avg score 76513) and 1.6% higher than the AMD EPYC Embedded 8224P (avg score 76492). It trails the Intel Core i9-14900K by 1.7% (avg score 79097) and leads the AMD Ryzen 9 8945HX by 2% (avg score 76212). These deltas are narrow, meaning the CPU's performance in Rust will be similar to these high-end parts, with the game's frame rate at lower settings being more dependent on the graphics card.

The CPU's 16 cores and 32 threads are more than sufficient for Rust's threading model. The game does not scale perfectly across all cores, but the high boost clock of 5.10 GHz ensures that the primary game thread executes with minimal latency. The 64 MB shared L3 cache is beneficial for keeping frequently accessed game data close to the cores, reducing memory latency. The quad-channel LPDDR5X memory with 256.0 GB/s bandwidth prevents memory bandwidth from becoming a bottleneck, which is crucial in Rust's open-world environments where many objects and entities are streamed.

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

The NVIDIA GeForce RTX 5090 is built on the Blackwell 2.0 architecture with the GB202 chip, fabricated on TSMC's 5 nm process. It packs 21,760 shading units, 680 texture mapping units, and 176 raster operation processors. The GPU has 170 RT cores and 680 tensor cores. Its base clock is 2017 MHz with a boost clock of 2407 MHz. The memory configuration is substantial: 32 GB of GDDR7 on a 512-bit bus, providing a bandwidth of 1.79 TB/s. The memory operates at 1750 MHz with 28 Gbps effective speed. The card's TDP is 575 W and it uses a dual-slot design with a 16-pin power connector.

In Rust, the GPU's role is to render the game's environments, which include complex lighting, shadows, and large draw distances. The RTX 5090's massive 32 GB VRAM is far beyond what Rust requires at any resolution, meaning texture streaming and high-resolution assets will never cause memory-related stutters. The 1.79 TB/s memory bandwidth allows for fast data transfer between the GPU and its framebuffer, which is essential at 4K resolution where pixel throughput demands are high.

The benchmark results show the GPU's raw power. At 1080p Low, the combo hits 237 FPS, and at 1440p Low, it maintains 163 FPS. These numbers indicate that the RTX 5090 is capable of pushing extremely high frame rates when the CPU and settings allow. The GPU's PassMark G3D score of 39650 and its 92nd percentile ranking among all GPUs confirm its elite status. The average benchmark score of 79842 places it in the top tier, with nearest rivals being the NVIDIA Tesla P100 PCIe 16 GB (avg score 79605, delta 0.3%), the NVIDIA Tesla P100 PCIe 12 GB (avg score 79396, delta 0.6%), the AMD Radeon RX 6850M XT (avg score 78940, delta 1.1%), and the AMD Radeon Pro Vega 64X (avg score 80959, delta -1.4%). The RTX 5090 is slightly faster than most of these, except the Pro Vega 64X, which it trails by 1.4%.

The GPU's 104.8 TFLOPS of FP32 compute and 423.6 GPixel/s pixel rate are more than enough for Rust's rendering demands. The 1,636.8 GTexel/s texture rate ensures that texture filtering and sampling do not become bottlenecks. At 4K Ultra, the combo still produces 41 FPS, indicating that even the most demanding settings are playable, though not at high refresh rates. The GPU is clearly the dominant component at higher resolutions and settings, as evidenced by the frame rate scaling from 1080p to 4K.

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

The measured FPS data provides four settings presets—Low, Medium, High, and Ultra—across three resolutions. The goal is to identify which preset offers the best balance of visual quality and performance for typical usage scenarios.

At 1080p, the Low preset delivers 237 FPS, which is exceptionally high and well beyond the refresh rate of most monitors. The Medium preset drops to 159 FPS, still very smooth, while High produces 134 FPS and Ultra yields 102 FPS. All presets at 1080p are playable, but the Medium preset offers a significant improvement in visual fidelity over Low (from 237 to 159 FPS, a 33% reduction) while still maintaining a frame rate that exceeds 144 Hz displays. For competitive play, the Low preset at 237 FPS would be ideal, but for most users, Medium at 159 FPS provides a better visual experience without sacrificing smoothness.

At 1440p, the Low preset achieves 163 FPS, Medium hits 109 FPS, High reaches 92 FPS, and Ultra drops to 70 FPS. The Medium preset at 109 FPS is the sweet spot for a 1440p monitor with a 120 Hz or 144 Hz refresh rate, as it stays above the 100 FPS threshold. High at 92 FPS is still smooth for most games, but the drop to below 100 FPS may be noticeable to some users. Ultra at 70 FPS is playable but not ideal for fast-paced action. The data shows that Medium is the recommended preset at 1440p, as it provides a substantial visual upgrade over Low while maintaining a high frame rate.

At 4K (3840x2160), the Low preset produces 96 FPS, Medium reaches 65 FPS, High drops to 54 FPS, and Ultra falls to 41 FPS. The Low preset at 96 FPS is the only one that approaches a 100 FPS experience, making it the recommended choice for 4K gaming on this combo. Medium at 65 FPS is playable but requires a VRR display to avoid tearing, and High at 54 FPS is on the edge of playability. Ultra at 41 FPS is best reserved for screenshots or slow-paced exploration. The measured min FPS for Medium at 4K is 55, which is still above the 50 FPS threshold, indicating that the frame time consistency is acceptable.

Considering all resolutions, the Medium preset offers the best overall experience for this combo. At 1080p, it provides 159 FPS, at 1440p it delivers 109 FPS, and at 4K it yields 65 FPS. The Medium preset strikes a balance between the visual enhancements over Low and the performance cost, making it the most versatile choice. Users with high refresh rate monitors at 1080p may prefer Low for maximum FPS, but for the majority of users, Medium is the recommended setting.

# How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of the AMD Ryzen AI Max+ 395 and NVIDIA GeForce RTX 5090 ranks 492nd out of 2,953 tested combos in Rust. This places it in the top 16.7% of all tested configurations, which is a strong showing given the large number of possible CPU-GPU pairs. The rank is based on the measured FPS across all resolutions and settings, meaning it reflects the overall performance of the combo rather than a single benchmark.

The 492nd rank out of 2,953 combos indicates that while this is a high-end setup, there are 491 other combinations that perform better in Rust. These superior combos likely include higher-end desktop CPUs with even higher single-thread performance, or configurations where the CPU and GPU are better balanced for this specific game. The Ryzen AI Max+ 395 is a mobile processor, and its 55 W TDP, while efficient, is lower than many desktop parts, which may limit its sustained performance in CPU-intensive scenarios.

The GPU's 92nd percentile ranking suggests it is not the limiting factor in this combo's rank. The RTX 5090 is one of the fastest GPUs available, so the bottleneck is more likely the CPU's mobile nature. The 16 cores and 32 threads are plentiful, but the boost clock of 5.10 GHz, while high, may not be sustainable under heavy multi-threaded loads due to thermal and power constraints.

The combo's rank relative to other tested combos can be interpreted through the FPS data. At 1080p Low, the 237 FPS is excellent, but some desktop CPU and GPU combos may exceed this due to higher sustained clocks. At 4K Ultra, the 41 FPS is respectable but not top-tier, as the CPU may struggle to feed the GPU at such high resolutions. The rank of 492 suggests that for Rust specifically, this combo is solid but not the absolute best, and users seeking the highest possible FPS may need to consider alternative CPU choices.

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

The measured FPS across resolutions provides insight into which component is the limiting factor. At Low settings, the FPS drops from 237 at 1080p to 163 at 1440p (a 31% decrease) and then to 96 at 4K (a 41% decrease from 1440p). This scaling pattern is typical of a GPU-bound scenario, where increasing resolution places more demand on the graphics card. The RTX 5090's 1.79 TB/s bandwidth and 32 GB VRAM ensure that it can handle the increased pixel count, but the frame rate still drops as the GPU's compute resources are saturated.

At Medium settings, the FPS drops from 159 at 1080p to 109 at 1440p (a 31% decrease) and then to 65 at 4K (a 40% decrease). The similar percentage drops at Low and Medium indicate that the GPU is consistently the limiting factor across these settings. The RTX 5090's strong performance is evident, but the game's visual complexity at higher resolutions requires more shading and texture work, which scales with pixel count.

At High settings, the FPS drops from 134 at 1080p to 92 at 1440p (a 31% decrease) and then to 54 at 4K (a 41% decrease). Again, the pattern is consistent. At Ultra settings, the FPS drops from 102 at 1080p to 70 at 1440p (a 31% decrease) and then to 41 at 4K (a 41% decrease). The consistency of the percentage drops across all settings—roughly 31% from 1080p to 1440p and 41% from 1440p to 4K—strongly suggests that the GPU is the primary bottleneck at all resolution and setting combinations.

If the CPU were the limiting factor, the FPS would remain relatively constant as resolution increases, because the CPU's workload (game logic, physics, etc.) does not change with resolution. However, the data shows a clear and substantial FPS drop with each resolution increase, indicating that the RTX 5090 is being fully utilized. The CPU, with its high single-thread performance, is able to keep up with the GPU's demands even at 4K, but the GPU's rendering workload is what ultimately caps the frame rate.

This resolution scaling analysis confirms that for this combo, the NVIDIA GeForce RTX 5090 is the dominant component in Rust. The 32 GB VRAM is more than sufficient for even the highest resolution textures, and the 1.79 TB/s bandwidth prevents memory bandwidth from being a constraint. The CPU's performance is adequate, but the GPU's capabilities define the overall frame rate experience.

# FAQ

Q: What is the maximum average FPS this combo can achieve in Rust?

A: The highest average FPS measured is 237, achieved at 1080p resolution with Low settings. This is the maximum frame rate recorded across all tested resolution and settings combinations.

Q: How does this combo perform at 4K Ultra settings?

A: At 4K (3840x2160) with Ultra settings, the combo produces an average FPS of 41. This is playable but not smooth for fast-paced action, and the Low preset at 4K yields 96 FPS, which is significantly better.

Q: Is the CPU or GPU the limiting factor in Rust?

A: The GPU is the limiting factor. The FPS drops consistently by approximately 31% from 1080p to 1440p and by 41% from 1440p to 4K across all settings, indicating that the RTX 5090's rendering workload is the bottleneck.

Q: What is the combo's rank among all tested configurations?

A: This combo ranks 492nd out of 2,953 tested combos in Rust. This places it in the top 16.7% of all tested CPU-GPU pairs.

Q: How does the Ryzen AI Max+ 395 compare to its nearest rival in CPU benchmarks?

A: The Ryzen AI Max+ 395 has an average benchmark score of 77740, which is 1.6% higher than the AMD Ryzen Threadripper PRO 9945WX (76513) and 1.6% higher than the AMD EPYC Embedded 8224P (76492). It is 1.7% lower than the Intel Core i9-14900K (79097) and 2% higher than the AMD Ryzen 9 8945HX (76212).

Q: What is the recommended settings preset for a balanced experience?

A: The Medium preset is recommended. It provides 159 FPS at 1080p, 109 FPS at 1440p, and 65 FPS at 4K, offering a good balance between visual quality and frame rate across all resolutions.