Rust

How This Combo Ranks

The AMD Ryzen 5 8400F paired with the NVIDIA GeForce RTX 3070 lands at rank 1580 out of 3723 tested combinations in Rust. That places this setup in the 58th percentile of all tested combos, meaning it outperforms a clear majority of systems while still leaving substantial headroom above it. The ranking reflects a balanced pairing where neither component is severely bottlenecking the other, though the data suggests the GPU carries more of the load at higher resolutions.

This mid-tier ranking becomes more meaningful when looking at the raw frame rates. At 1080p Low, the combo produces 185 FPS average, which is well into high-refresh territory. Even at 4K Ultra, it maintains 32 FPS, showing the combination remains functional across the entire resolution spectrum. The rank of 1580 out of 3723 tells a story of a system that can handle competitive play at 1080p and still deliver playable experiences at 1440p, with 4K reserved for lower presets.

CPU Role

The AMD Ryzen 5 8400F brings six cores and twelve threads to Rust, running on the Zen 4 architecture built on a 4 nm process. Its base clock sits at 4.20 GHz with a boost clock of 4.70 GHz. For a game like Rust, which has historically shown sensitivity to single-thread performance, the 3dmark_single_thread score of 951 and passmark_single_thread score of 3685 indicate solid per-core capability. The Cinebench R23 single-core score of 2943 reinforces this, suggesting the CPU can feed the GPU adequately at lower resolutions.

The multi-threaded results tell a similar story. The Cinebench R23 multicore score of 20851 and passmark_multithread score of 24389 place this CPU above the 77th percentile of all processors. In Rust, where world simulation and entity updates can utilize multiple cores, the 12 threads help maintain frame pacing. The 3dmark_16_threads score of 6091 and 3dmark_max_threads score of 6165 show consistent scaling, though the relatively small gap between 8-thread (5275) and 16-thread (6091) scores suggests diminishing returns beyond eight threads.

The CPU's nearest rivals in overall benchmark scores include the AMD Ryzen 5 7500F at 0.2% higher average score, the Intel Core i7-11850H at 0.3% higher, and the Intel Core i7-13620H at 0.4% higher. The AMD EPYC 9474F trails slightly at -0.4%. These margins are effectively negligible, meaning the 8400F performs essentially on par with these alternatives in synthetic testing. For Rust specifically, the 16 MB of shared L3 cache and dual-channel DDR5 memory support with 83.2 GB/s bandwidth provide adequate data throughput for the game's streaming world.

GPU Role

The NVIDIA GeForce RTX 3070 is built on the Ampere architecture using an 8 nm Samsung process. It features 8 GB of GDDR6 memory on a 256-bit bus, delivering 448.0 GB/s of bandwidth. The base clock of 1500 MHz boosts up to 1725 MHz. With 5888 shading units, 184 texture mapping units, and 96 raster output units, the GPU offers substantial compute resources. The 46 ray tracing cores and 184 tensor cores add specialized capabilities, though Rust's rasterization-focused rendering means these are less impactful here.

The GPU's 20.31 TFLOPS of FP32 performance and 317.4 GTexel/s texture rate provide strong raw throughput. In Rust, the 8 GB VRAM capacity becomes a consideration at higher resolutions and settings. The 3dmark_steel_nomad_dx12 score of 3162 and passmark_g3d score of 22214 place the GPU at the 61st percentile of all GPUs. Its nearest rivals include the AMD Radeon RX 7600 XT at 0.7% higher average score, the NVIDIA GeForce GTX 690 at 1% higher, and the AMD Radeon HD 7970M at 1.1% higher, while the NVIDIA Tesla K40c trails at -1.5%.

The GPU's role becomes evident when examining frame rates across settings. At 1080p Low, the 185 FPS average suggests the CPU is the primary limiter, as the GPU has ample headroom. At 4K Ultra, the 32 FPS average indicates the GPU is now the bottleneck, struggling with the higher pixel count and demanding settings. The 8 GB VRAM likely contributes to this limitation at 4K Ultra, where texture and geometry data can exceed comfortable memory capacity.

FAQ

Q: Is this combination better suited for 1080p or 1440p gaming in Rust?

A: The data shows 1080p High produces 105 FPS average, while 1440p High produces 72 FPS average. Both are playable, but 1080p offers a smoother experience. At 1440p Low, the 127 FPS average still provides high-refresh capability, so the choice depends on whether visual fidelity or frame rate takes priority.

Q: How does the CPU compare to its closest rivals?

A: The Ryzen 5 8400F has an average benchmark score of 25005. The AMD Ryzen 5 7500F scores 24964 (0.2% higher), the Intel Core i7-11850H scores 24935 (0.3% higher), and the Intel Core i7-13620H scores 24911 (0.4% higher). The AMD EPYC 9474F scores 25103 (-0.4% lower). These differences are within noise margins.

Q: What is the GPU's performance percentile and how does it compare to similar cards?

A: The RTX 3070 sits at the 61st percentile of all GPUs with an average benchmark score of 17208. Its closest rivals are the AMD Radeon RX 7600 XT at 17083 (0.7% higher), NVIDIA GeForce GTX 690 at 17037 (1% higher), and AMD Radeon HD 7970M at 17019 (1.1% higher). The NVIDIA Tesla K40c scores 17468 (-1.5%).

Q: Does the CPU bottleneck the GPU at any resolution?

A: At 1080p Low with 185 FPS average, the CPU likely limits performance since the GPU can render frames faster than the CPU can feed it. At 4K Ultra with 32 FPS average, the GPU becomes the limiting factor. The crossover point appears to be somewhere between 1080p and 1440p depending on settings.

Q: What kind of frame pacing can be expected at Medium settings?

A: Medium settings show consistent minimum frames across resolutions. At 1080p, the average is 124 FPS with a minimum of 106 FPS. At 1440p, the average drops to 85 FPS with a minimum of 73 FPS. At 4K, the average is 50 FPS with a minimum of 43 FPS. The maximum frames scale similarly.

Q: How does the CPU's multi-threaded performance compare to its single-threaded performance?

A: The 3dmark single-thread score is 951, while the max-thread score is 6165, showing roughly 6.5x scaling across 12 threads. The Cinebench R23 results show a similar pattern with 2943 single-core and 20851 multicore, indicating the CPU scales well with thread count for games that can utilize multiple cores.

Resolution Scaling

The frame rate progression from 1080p to 4K reveals the balance between CPU and GPU limitations. At Low settings, the average FPS drops from 185 at 1080p to 127 at 1440p (a 31% decrease), then to 75 at 4K (a 41% decrease from 1440p). The 1080p Low result of 185 FPS likely approaches the CPU's maximum throughput in Rust, as the GPU has significant headroom at this resolution.

At High settings, the scaling shows a steeper curve. The 105 FPS at 1080p drops to 72 FPS at 1440p (a 31% decrease), then to 43 FPS at 4K (a 40% decrease from 1440p). The Ultra preset shows the most dramatic scaling: 80 FPS at 1080p, 55 FPS at 1440p (a 31% decrease), and 32 FPS at 4K (a 42% decrease from 1440p). The consistent ~31% drop from 1080p to 1440p across all settings suggests a balanced system where both components contribute to the bottleneck.

The transition from 1440p to 4K shows a larger relative drop of 40-42%, indicating the GPU becomes increasingly dominant as a limiter at higher pixel counts. The RTX 3070's 8 GB VRAM and 448 GB/s bandwidth likely constrain performance at 4K, particularly at Higher settings where memory pressure increases. The 4K Medium result of 50 FPS with a minimum of 43 FPS demonstrates that the system can remain playable at 4K, but only with reduced settings.

Settings Recommendations

The data reveals that Medium settings offer the best balance of visual quality and performance across all resolutions. At 1080p Medium, the 124 FPS average with a minimum of 106 FPS provides a smooth experience that exceeds typical 60 Hz displays and approaches high-refresh territory. At 1440p Medium, the 85 FPS average with a minimum of 73 FPS remains well above playability thresholds, making this the recommended resolution for this preset.

For competitive play where frame rate takes priority over visuals, Low settings at 1440p deliver 127 FPS average, which is only slightly below the 1080p High result of 105 FPS. This makes 1440p Low an attractive option for players seeking high frame rates with slightly higher resolution. At 1080p Low, the 185 FPS average provides maximum smoothness for fast-paced combat scenarios, though the visual trade-off is significant.

At 4K, only Low settings (75 FPS) and Medium settings (50 FPS) remain comfortably playable. The High preset at 4K drops to 43 FPS, which is borderline for gameplay. The Ultra preset at 4K produces 32 FPS, which falls below smooth gameplay thresholds. For 4K users, Medium settings provide the best compromise with a 50 FPS average and 43 FPS minimum, maintaining playability while offering improved visuals over Low.

Measured FPS Breakdown

At 1920x1080, the system produces its strongest results across all settings. Low settings achieve an average of 185 FPS. Medium settings average 124 FPS with a range of 106 to 143 FPS. High settings average 105 FPS. Ultra settings average 80 FPS. The progression from Low to Ultra shows a 57% reduction in average frame rate, from 185 to 80 FPS, indicating that visual settings have a substantial impact at this resolution.

At 2560x1440, performance remains strong but shows clear scaling pressure. Low settings average 127 FPS. Medium settings average 85 FPS with a range of 73 to 98 FPS. High settings average 72 FPS. Ultra settings average 55 FPS. The drop from 1080p to 1440p at each setting level is consistent, ranging from 31% at Low to 31% at High, suggesting predictable scaling behavior.

At 3840x2160, the GPU becomes the dominant constraint. Low settings average 75 FPS. Medium settings average 50 FPS with a range of 43 to 58 FPS. High settings average 43 FPS. Ultra settings average 32 FPS. The 4K results show the widest relative spread between settings, with Ultra producing less than half the frame rate of Low. The Medium preset's minimum of 43 FPS versus High's 43 FPS average indicates that Medium provides more consistent frame delivery at 4K, making it the safer choice for sustained gameplay.