Rust

Rust is a demanding survival title, and the data for the AMD Ryzen 9 8945HX paired with the NVIDIA GeForce RTX 5070 Mobile shows a system that is highly capable at mainstream resolutions but begins to struggle when pushed to 4K. The measured results indicate a clear shift in bottleneck behavior as resolution climbs, moving from a CPU-bound scenario at 1080p to a GPU-bound one at 4K. This combo ranks in the 2061st position out of 3723 tested combinations, placing it in the upper half of all systems tested for this game, but the specific frame rates reveal where its strengths and weaknesses lie.

Resolution Scaling

The most telling data in this pack is the performance drop when moving from 1920x1080 to 3840x2160. At 1080p with Low settings, the system achieves an average of 161 FPS. This is a very high frame rate that suggests the CPU is doing the heavy lifting to feed frames. However, when the resolution is increased to 4K with the same Low settings, the average FPS falls to 65. That is a drop of 96 FPS, or approximately 60%, which is a massive hit.

This pattern strongly indicates that at 1080p, the system is not fully GPU-bound. The Ryzen 9 8945HX, with its 16 cores and 32 threads, is capable of pushing a high number of frames, but the RTX 5070 Mobile is able to keep up at that resolution. As we move to 2560x1440, the Low setting average drops to 111 FPS. This is still a very playable number, but the scaling from 1080p to 1440p shows a loss of 50 FPS. The drop from 1440p to 4K at Low settings is another 46 FPS, showing that the GPU is becoming the primary limiting factor at higher resolutions.

The trend becomes even more pronounced when looking at the High settings. The system delivers 91 FPS at 1080p, which drops to 63 FPS at 1440p, and then to 37 FPS at 4K. The scaling is not linear; the gap between 1080p and 1440p is 28 FPS, while the gap between 1440p and 4K is 26 FPS. This indicates that while the GPU is increasingly stressed at 1440p, the jump to 4K creates a severe bottleneck. The 4K High result of 37 FPS is below the threshold for a smooth experience on many displays. The data suggests that 1440p is the realistic ceiling for high-refresh-rate play with this combination, and 4K is only viable at lower settings.

FAQ

Q: What is the performance difference between Low and Ultra settings at 1080p?

A: The measured data shows a significant spread. At 1920x1080, the Low preset averages 161 FPS, while the Ultra preset averages 69 FPS. This is a difference of 92 FPS, indicating that the higher graphical fidelity comes at a substantial cost to frame rate.

Q: Is this system capable of 4K gaming in Rust?

A: Yes, but with caveats. At 3840x2160 with Low settings, the system averages 65 FPS, which is playable. However, at Medium settings, the average drops to 44 FPS, and at High settings, it falls to 37 FPS. The Ultra preset at 4K averages only 28 FPS. So, 4K is possible, but only with significant compromises to visual quality.

Q: How does the Ryzen 9 8945HX compare to its closest rival in raw CPU performance?

A: The CPU's average benchmark score is 76212, which is nearly identical to the Intel Core Ultra 9 285HX, which has an average score of 76155. The deltaPct is a mere 0.1%, meaning the performance is effectively a tie. It is also 0.6% ahead of the AMD Ryzen 9 9950X3D, which scores 75779.

Q: What is the GPU's performance position relative to desktop cards from a previous generation?

A: The RTX 5070 Mobile's average benchmark score is 29928. This places it right in line with the NVIDIA GeForce RTX 3070 Ti, which has an average score of 29945, a deltaPct of -0.1%. It is also 0.5% ahead of the RTX 2080 Ti, which scores 29783.

Q: What kind of frame times can be expected at 1440p Medium settings?

A: The data for 2560x1440 Medium shows an average FPS of 74, with a minimum FPS of 63 and a maximum FPS of 85. This is a relatively tight window of 22 FPS, suggesting decent frame pacing, though the minimum is noticeably lower than the average.

Q: Does the CPU performance bottleneck the GPU at 1080p?

A: The FPS data suggests that the CPU is working hard to maintain high frame rates. At 1080p Low, the system hits 161 FPS. The fact that the frame rate drops so dramatically when resolution increases indicates that the CPU is capable of producing a high number of frames, but the GPU's workload becomes the limiting factor at higher resolutions. The CPU is likely not a bottleneck at 1080p, but rather the system is well-balanced at that resolution, with the GPU still having headroom.

GPU Role

The NVIDIA GeForce RTX 5070 Mobile is based on the Blackwell 2.0 architecture and features 8 GB of GDDR7 memory on a 128-bit bus. This memory configuration provides a bandwidth of 384.0 GB/s. The 8 GB VRAM capacity is a critical detail for Rust, as the game is known for its large textures and memory usage, especially on higher settings. The measured data shows that at 4K Ultra, the system averages only 28 FPS, which is likely not just a raw compute limitation but also a potential VRAM capacity issue.

The GPU has a base clock of 907 MHz and a boost clock of 1425 MHz. With 4608 shading units, it can deliver 13.13 TFLOPS of FP32 performance. These clocks are relatively modest for a high-end mobile part, but the architecture is efficient. In comparison to its rivals, the RTX 5070 Mobile's average benchmark score of 29928 is essentially identical to the desktop RTX 3070 Ti (29945) and RTX 2080 Ti (29783). This indicates that the mobile chip performs at a level comparable to those older, higher-tier desktop cards.

The GPU's role in Rust becomes more pronounced at higher resolutions. At 1080p, the frame rates are high enough that the CPU is likely the primary driver of performance. However, the scaling from 1080p to 4K shows a steep decline in FPS that is characteristic of a GPU bottleneck. For example, at High settings, the FPS drops from 91 at 1080p to 37 at 4K. This is a 54 FPS drop, and it shows that the RTX 5070 Mobile's compute and memory bandwidth are overwhelmed by the pixel count at 4K. The 8 GB VRAM is also a concern; the jump from Medium to High at 1440p results in an 11 FPS drop, which could be a sign of memory pressure.

Settings Recommendations

The measured data provides clear guidance on which settings to use for different priorities. For players targeting high refresh rates at 1080p, the Low preset offers the best performance at 161 FPS. However, the Medium preset still provides a very smooth 108 FPS and is likely a better visual experience. The High preset at 91 FPS is also viable for 1080p gaming, offering a good balance. The Ultra preset at 69 FPS is still playable but may not be ideal for competitive play where high frame rates are crucial.

At 2560x1440, the choices become more constrained. The Low preset delivers 111 FPS, which is excellent for a 1440p monitor. The Medium preset, with an average of 74 FPS, is the sweet spot for visual quality and smoothness. The High preset at 63 FPS is acceptable, but the Ultra preset at 48 FPS is where the experience starts to suffer. For 1440p, the data suggests that Medium is the recommended preset to maintain a high and consistent frame rate.

For 4K gaming, the options are limited. The Low preset is the only one that provides a consistently playable experience, with an average of 65 FPS. The Medium preset at 44 FPS is borderline, and the High and Ultra presets at 37 and 28 FPS respectively are not recommended for a smooth experience. The data clearly indicates that 4K in Rust with this combo requires significant compromises on visual fidelity. If a player must use 4K, the Low preset is the only sensible choice. Otherwise, 1440p Medium offers the best balance between visuals and performance.

How This Combo Ranks

The AMD Ryzen 9 8945HX and RTX 5070 Mobile combination is ranked 2061 out of 3723 tested combos for Rust. This places it in the 55th percentile of all tested systems, meaning it outperforms more than half of the other configurations in the database. This is a respectable position, but it is not a top-tier ranking. The data suggests that while this system is capable, it is not exceptional for Rust specifically.

The CPU itself is a high performer, with a percentile rank of 95 among all CPUs. Its average benchmark score of 76212 puts it in the top 5% of all processors. The GPU is also a solid performer, with a percentile rank of 75 among all GPUs. The combination of a top-tier CPU and a high-mid-range GPU results in a system that is well-balanced for most games, but the specific demands of Rust, particularly its CPU-heavy nature at lower resolutions and its high VRAM usage, mean that this combo doesn't reach the top of the rankings.

The ranking of 2061st suggests that there are many other systems that produce higher frame rates in Rust. This could be due to other combos having CPUs with even higher single-threaded performance or GPUs with more VRAM. The fact that the CPU is in the 95th percentile but the combo is only in the 55th percentile for Rust indicates that the GPU is likely the limiting factor for this game's specific performance metrics. The data shows that the system is strong, but it is not optimized for Rust's unique requirements.

Measured FPS Breakdown

The following is the complete measured data for this combo, organized by resolution and settings.

1920x1080:

• Low: Average FPS 161, Minimum and Maximum not measured.
• Medium: Average FPS 108, Minimum FPS 92, Maximum FPS 124.
• High: Average FPS 91, Minimum and Maximum not measured.
• Ultra: Average FPS 69, Minimum and Maximum not measured.

2560x1440:

• Low: Average FPS 111, Minimum and Maximum not measured.
• Medium: Average FPS 74, Minimum FPS 63, Maximum FPS 85.
• High: Average FPS 63, Minimum and Maximum not measured.
• Ultra: Average FPS 48, Minimum and Maximum not measured.

3840x2160:

• Low: Average FPS 65, Minimum and Maximum not measured.
• Medium: Average FPS 44, Minimum FPS 37, Maximum FPS 50.
• High: Average FPS 37, Minimum and Maximum not measured.
• Ultra: Average FPS 28, Minimum and Maximum not measured.

At 1080p, the system is clearly capable of high refresh rate gaming. The jump from Low to Medium is a 53 FPS drop, which is significant, but the Medium setting still provides a very good experience. The High and Ultra settings are also playable, with the Ultra setting offering a 69 FPS average that is still smooth on a standard 60Hz monitor. The 1440p results show a similar pattern, but the absolute numbers are lower. The Low setting at 111 FPS is excellent, but the Ultra setting at 48 FPS is starting to approach the edge of playability. The 4K results are the most telling. The Low setting at 65 FPS is the only one that is truly smooth. The Medium setting at 44 FPS is playable but not ideal, and the High and Ultra settings are not recommended. The minimum FPS data for the Medium settings shows that even the average can dip, but the 4K Medium minimum of 37 FPS is particularly low, indicating that there are moments of significant stutter. This data paints a clear picture of a system that is best suited for 1080p and 1440p gaming, with 4K being a stretch goal that requires significant setting compromises.