Rust

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

The AMD Ryzen 9 9950X3D is a 16-core, 32-thread processor based on the Zen 5 architecture, codenamed Granite Ridge. It operates on the AMD Socket AM5 platform with a base clock of 4.30 GHz and a boost clock of 5.70 GHz. The processor carries a TDP of 170 W and supports DDR5 memory in a dual-channel configuration, yielding a memory bandwidth of 89.6 GB/s. Its cache hierarchy includes 80 KB of L1 per core, 1 MB of L2 per core, and a substantial 128 MB of L3 cache. The processor also integrates Radeon Graphics, though the recorded benchmarks use the discrete GPU.

In the database, this CPU holds a percentile rank of 95 among all tested processors, with an average benchmark score of 75779. Its nearest rivals in aggregate CPU benchmarks are the AMD Ryzen 7 PRO 9755 (average score 75738, delta 0.1%), the AMD Ryzen 7 PRO 9755X3D (average score 75716, delta 0.1%), the AMD EPYC 8224P (average score 75582, delta 0.3%), and the Intel Core Ultra 9 285 (average score 75488, delta 0.4%). These deltas are all under half a percent, meaning the 9950X3D is effectively tied with those processors in overall CPU compute benchmarks.

For Rust, the CPU's role is significant because the game is known for heavy single-thread and multi-thread workloads, particularly in large player-built environments. The 9950X3D's high boost clock of 5.70 GHz supports strong single-thread performance, while its 16 cores and 32 threads provide ample parallel capacity. In the measured data, the CPU's 3DMark scores show scaling from 2549 at 2 threads to 17184 at max threads, confirming that the processor scales well across thread counts. The Cinebench R23 multicore score of 42018 and single-core score of 2259 further indicate that both lightly threaded and heavily threaded tasks are handled with high headroom.

In Rust specifically, the combination of the 9950X3D and the RX 7900 XTX produces average frame rates that range from 263 FPS at 1080p Low to 46 FPS at 4K Ultra. The fact that 1080p Low reaches 263 FPS suggests that at lower resolutions the CPU is not the primary constraint, as the frame rate is very high. Conversely, at 4K Ultra the frame rate drops to 46 FPS, which indicates that the GPU becomes the limiting factor at higher resolutions and settings. The CPU's strong multi-core scores and high cache capacity help maintain consistent frame pacing in Rust's world simulation, which often involves many entities and physics calculations.

FAQ

Q: What is the average frame rate at 1440p with High settings?

A: At 2560x1440 with High settings, the measured average FPS is 102.

Q: How does the 9950X3D compare to its nearest CPU rival in aggregate benchmarks?

A: The Ryzen 9 9950X3D has an average benchmark score of 75779, which is 0.1% higher than the AMD Ryzen 7 PRO 9755 and the AMD Ryzen 7 PRO 9755X3D, both scoring 75738 and 75716 respectively.

Q: What is the minimum FPS recorded at 1080p Medium?

A: The minimum FPS at 1920x1080 with Medium settings is 150, with an average of 176 and a maximum of 203.

Q: What is the GPU's VRAM capacity and memory bandwidth?

A: The AMD Radeon RX 7900 XTX has 24 GB of GDDR6 memory on a 384-bit bus, providing a bandwidth of 960.0 GB/s.

Q: What is the combo's rank among all tested combos in Rust?

A: The combo of the Ryzen 9 9950X3D and RX 7900 XTX ranks 381 out of 3723 tested combos in Rust.

Q: What is the average FPS at 4K with Low settings?

A: At 3840x2160 with Low settings, the average FPS is 107.

Resolution Scaling

The measured FPS data for Rust shows a clear scaling pattern across resolutions. Starting at 1920x1080, the average frame rates are high across all settings: 263 FPS at Low, 176 FPS at Medium, 149 FPS at High, and 113 FPS at Ultra. Moving to 2560x1440, the averages drop to 181 FPS at Low, 121 FPS at Medium, 102 FPS at High, and 78 FPS at Ultra. At 3840x2160, the averages fall further to 107 FPS at Low, 72 FPS at Medium, 60 FPS at High, and 46 FPS at Ultra.

The percentage drops from 1080p to 4K are substantial. At Low settings, the average FPS goes from 263 to 107, a reduction of approximately 59%. At Medium, it goes from 176 to 72, a reduction of about 59%. At High, it goes from 149 to 60, a reduction of roughly 60%. At Ultra, it goes from 113 to 46, a reduction of about 59%. These consistent reductions across settings indicate that the scaling is primarily resolution-driven rather than setting-driven.

The pattern suggests that at 1080p, the system is not fully GPU-bound, as even the Ultra preset delivers 113 FPS. At 4K, the GPU workload increases significantly, and the frame rates drop to levels that suggest the RX 7900 XTX is the limiting component. Specifically, the 4K Ultra result of 46 FPS is lower than the 4K Low result of 107 FPS, which shows that the game's rendering load at 4K with high settings exceeds the GPU's capacity to maintain higher frame rates. The CPU's role remains consistent across resolutions, as its performance ceiling is high enough to not bottleneck at 1080p, but the GPU's pixel throughput and shading capacity become the dominant factor as resolution increases.

The data also shows that the FPS drop from 1080p to 1440p is less severe than from 1440p to 4K. For example, at High settings, 1080p delivers 149 FPS, 1440p delivers 102 FPS, and 4K delivers 60 FPS. The incremental drop from 1440p to 4K is approximately 41%, while the drop from 1080p to 1440p is about 32%. This non-linear scaling is typical for games where the GPU's fill rate and memory bandwidth become more stressed at higher pixel counts. The RX 7900 XTX's 24 GB of VRAM and 960.0 GB/s bandwidth are sufficient for the memory demands, but the compute units are tasked more heavily at 4K.

How This Combo Ranks

In the database, the combination of the AMD Ryzen 9 9950X3D and the AMD Radeon RX 7900 XTX achieves a rank of 381 out of 3723 tested combos in Rust. This places the combo in the top 10.2% of all tested combinations, indicating a high-performing pairing for this game. The rank reflects the measured average FPS across all recorded settings and resolutions, which are weighted toward the higher presets.

The combo's rank is influenced by the CPU's strong multi-threaded performance, as Rust benefits from a processor that can handle many simultaneous tasks. The 9950X3D's 16 cores and 32 threads, combined with its 128 MB of L3 cache, provide a robust foundation for Rust's server-side and client-side calculations. The GPU's 24 GB of VRAM and high memory bandwidth also contribute, as Rust's large map data and texture assets can be stored locally without frequent transfers.

Relative to other combos, the 9950X3D and RX 7900 XTX pairing outperforms the vast majority of tested systems, but it is not at the very top of the rankings. The top-ranked combos likely feature even higher-end GPUs or CPUs with higher clock speeds, but the measured data does not specify those details. What the data does show is that this combo delivers an average FPS of 60 or higher at 4K High, which is a playable threshold for most users, and exceeds 100 FPS at 1440p High.

The rank of 381 out of 3723 also implies that there are 3342 combos that rank lower, meaning this pairing is in the upper tier of performance for Rust. The CPU's percentile vs all CPUs is 95, but the combo rank is 381, which indicates that the GPU is the more limiting factor in this pairing. If a different GPU were paired with the same CPU, the rank could change, but the data only includes this specific combo.

Measured FPS Breakdown

The measured FPS data covers four resolutions and four settings presets, with some entries including minimum and maximum FPS values. At 1920x1080, the Low preset produces an average of 263 FPS, which is the highest recorded value in the entire dataset. The Medium preset at 1080p shows an average of 176 FPS, with a minimum of 150 and a maximum of 203. The High preset at 1080p yields an average of 149 FPS, while the Ultra preset delivers 113 FPS. The spread from Low to Ultra at 1080p is 150 FPS, which demonstrates that the GPU has significant headroom at this resolution.

At 2560x1440, the Low preset averages 181 FPS, the Medium preset averages 121 FPS with a minimum of 103 and a maximum of 139, the High preset averages 102 FPS, and the Ultra preset averages 78 FPS. The drop from 1080p Low to 1440p Low is 82 FPS, while the drop from 1080p Ultra to 1440p Ultra is 35 FPS. This shows that lower presets are more sensitive to resolution increases, as the initial FPS are higher and the GPU has more room to be stressed.

At 3840x2160, the Low preset averages 107 FPS, the Medium preset averages 72 FPS with a minimum of 61 and a maximum of 82, the High preset averages 60 FPS, and the Ultra preset averages 46 FPS. The 4K Medium result includes a minimum FPS of 61 and a maximum of 82, which indicates frame pacing variability even at this moderate preset. The 4K Ultra result of 46 FPS is below the 60 FPS threshold that many consider smooth, suggesting that the GPU is fully saturated at this combination.

The data also shows that the Medium preset consistently includes min and max FPS values across all resolutions, while the Low, High, and Ultra presets do not. This suggests that the Medium settings produce a more variable frame rate, possibly due to a balance between CPU and GPU load. At 1080p Medium, the min is 150 and max is 203, a range of 53 FPS. At 1440p Medium, the min is 103 and max is 139, a range of 36 FPS. At 4K Medium, the min is 61 and max is 82, a range of 21 FPS. The narrowing range at higher resolutions indicates that the GPU becomes the bottleneck, reducing frame time variability.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this combo depend on the target resolution and desired frame rate. At 1920x1080, all presets deliver playable frame rates, with Low at 263 FPS, Medium at 176 FPS, High at 149 FPS, and Ultra at 113 FPS. The High preset offers a strong balance between visual quality and performance, as it maintains an average above 144 FPS, which is suitable for high-refresh-rate monitors. The Ultra preset still delivers 113 FPS, which is above 60 FPS, so it is also viable for users prioritizing visual fidelity.

At 2560x1440, the High preset averages 102 FPS, which is above the 60 FPS threshold and provides a smooth experience on most displays. The Medium preset averages 121 FPS, which offers higher frame rates with a moderate reduction in visual quality. The Ultra preset at 78 FPS is also playable, but it may not be ideal for competitive play where higher frame rates are preferred. For a balance of quality and performance, the High preset at 1440p is the recommended choice, as it delivers over 100 FPS while maintaining good visual detail.

At 3840x2160, the High preset averages 60 FPS, which is the minimum threshold for smooth gameplay on many monitors. The Medium preset averages 72 FPS, providing a slight buffer above 60 FPS and a more consistent experience, as indicated by the recorded min of 61 FPS. The Low preset at 107 FPS is the highest at 4K, but it sacrifices significant visual quality. The Ultra preset at 46 FPS is below the 60 FPS threshold and may result in noticeable stuttering or reduced responsiveness. For 4K, the Medium preset offers the best combination of visual quality and frame rate, as it stays above 60 FPS with a reasonable margin.

Across all resolutions, the Medium preset consistently provides a balanced experience, with average FPS of 176 at 1080p, 121 at 1440p, and 72 at 4K. The High preset is also strong, with averages of 149 at 1080p, 102 at 1440p, and 60 at 4K. Users who prioritize maximum visual quality can select Ultra at 1080p or 1440p, but at 4K the Ultra preset is not recommended due to the sub-60 FPS average. The Low preset is only advisable for users who require extremely high frame rates, such as at 1080p for esports-style play.

GPU Role

The AMD Radeon RX 7900 XTX is based on the RDNA 3.0 architecture with the Navi 31 chip, codenamed Plum Bonito. It has a base clock of 1929 MHz, a boost clock of 2498 MHz, and a game clock of 2365 MHz. The GPU features 6144 shading units, 384 texture mapping units, and 192 render output units, along with 96 ray tracing cores. Its memory subsystem consists of 24 GB of GDDR6 VRAM on a 384-bit bus, yielding a bandwidth of 960.0 GB/s. The GPU's pixel rate is 479.6 GPixel/s, and its texture rate is 959.2 GTexel/s. The FP32 performance is 61.39 TFLOPS, and the FP16 performance is 122.8 TFLOPS (2:1 ratio). The GPU has a TDP of 355 W and uses a dual-slot design with two 8-pin power connectors, requiring a suggested PSU of 750 W.

In the database, the RX 7900 XTX holds a percentile rank of 64 among all GPUs, with an average benchmark score of 19410. Its nearest rivals in GPU benchmarks are the NVIDIA GeForce GTX 1060 3 GB (average score 19334, delta 0.4%), the NVIDIA Quadro K5200 (average score 19602, delta -1%), the AMD FirePro D300 (average score 19637, delta -1.2%), and the NVIDIA TITAN Xp (average score 19177, delta 1.2%). These deltas are small, indicating that the RX 7900 XTX is closely matched with these GPUs in synthetic benchmarks, though the actual game performance in Rust may differ.

For Rust, the GPU's role is heavily tied to resolution and settings. At 1080p, the GPU is not the primary bottleneck, as the CPU can feed it enough data to reach high frame rates. However, at 4K, the GPU's compute and memory bandwidth become the limiting factor. The 24 GB of VRAM is ample for Rust's large maps and textures, but the 960.0 GB/s bandwidth is the key constraint when rendering at high resolutions. The GPU's boost clock of 2498 MHz allows for high sustained performance, but the frame rate data shows that the GPU cannot maintain 60 FPS at 4K Ultra, averaging only 46 FPS.

The GPU's benchmark scores in Rust-related tests are not directly available, but the measured FPS data provides a clear picture. At 4K High, the average FPS is 60, which is exactly at the threshold for smooth gameplay. At 4K Medium, the average FPS is 72, with a minimum of 61, indicating that the GPU can handle moderately demanding settings at 4K. The GPU's performance at 1440p is strong, with 102 FPS at High and 121 FPS at Medium, showing that it is well-suited for high-refresh-rate monitors at that resolution.

The RX 7900 XTX's 355 W TDP and 750 W suggested PSU indicate that it is a power-hungry component, but its performance in Rust at 1440p and 4K is respectable. The GPU's 96 ray tracing cores are not a major factor in Rust, as the game does not heavily utilize ray tracing in the measured settings. The GPU's DirectX 12 Ultimate support (12_2) is relevant, as Rust may use DX12 features, but the recorded FPS data is the primary indicator of performance. Overall, the GPU is the dominant factor at 4K, while the CPU remains important at lower resolutions.