Rust

The AMD Ryzen 5 8400F and NVIDIA GeForce GTX 1660 SUPER combination delivers a playable but constrained experience in Rust, with performance heavily dependent on resolution and preset selection. The data shows this pairing sits near the bottom quartile of tested configurations, ranking 3188 out of 3723 combos, indicating that while the system can run the game, it requires careful settings management to maintain smooth frame rates. The measured results reveal a pattern where the GTX 1660 SUPER’s 6 GB VRAM and the CPU’s 6-core/12-thread configuration interact in ways that favor lower resolutions and medium presets for the best balance of visual fidelity and responsiveness.

FAQ

Q: What is the best resolution for this CPU/GPU combo in Rust?

A: Based on the measured FPS data, 1920x1080 is the only resolution where the system achieves consistently playable frame rates across all settings, with averages ranging from 46 FPS at Ultra to 106 FPS at Low. At 2560x1440, only the Low preset (73 FPS) exceeds the 60 FPS threshold, while 3840x2160 struggles to reach playable levels even at Low (43 FPS).

Q: How does the Ryzen 5 8400F compare to its nearest CPU rivals?

A: The Ryzen 5 8400F has an average benchmark score of 25005, placing it 0.2% above the AMD Ryzen 5 7500F (24964) and 0.3% above the Intel Core i7-11850H (24935). It trails the AMD EPYC 9474F by 0.4%, which scores 25103, showing the 8400F is statistically tied with its closest competitors.

Q: What is the GPU’s performance position relative to its nearest rivals?

A: The GTX 1660 SUPER scores an average of 12986 in benchmarks, sitting 0.4% above the RTX 3050 Ti Mobile (12940) and the AMD Radeon RX 580 (12928). It also leads the AMD Radeon 740M by 0.9% (12870) but trails the Tesla M2090 by 0.7% (13075), placing it in a tightly contested mid-range tier.

Q: Which preset provides the highest minimum FPS at 1080p?

A: The Medium preset at 1920x1080 is the only configuration with recorded minimum FPS data, showing a minimum of 60 FPS and an average of 71 FPS. This suggests Medium is the safest choice for avoiding frame drops, as the Low preset averages 106 FPS but has no min FPS data to confirm stability.

Q: How does the combo rank overall in Rust?

A: This configuration ranks 3188 out of 3723 tested combos, placing it in the bottom 14% of all systems tested. This low ranking reflects the GPU’s 53rd percentile versus all GPUs and the CPU’s 77th percentile, with the graphics card being the primary bottleneck in most scenarios.

Q: Is the GTX 1660 SUPER’s memory bandwidth sufficient for Rust?

A: The GPU’s 336.0 GB/s bandwidth and 6 GB GDDR6 memory are adequate for 1080p gaming, as evidenced by the 60-106 FPS range across presets. However, the steep FPS drop at 1440p (41-73 FPS) and 4K (19-43 FPS) indicates the 6 GB capacity and bandwidth become limiting factors at higher resolutions.

Settings Recommendations

The measured FPS data provides a clear hierarchy of playable configurations for this combo. At 1920x1080, the Low preset delivers the highest average at 106 FPS, but the Medium preset offers a better balance with 71 FPS average and a recorded minimum of 60 FPS, ensuring consistent frame pacing. High preset drops to 60 FPS average, which is borderline for competitive play, while Ultra falls to 46 FPS, which will feel sluggish in fast-paced survival scenarios.

For the best experience, Medium at 1080p is the recommended setting because it maintains a minimum of 60 FPS while providing superior visual quality over Low. The data shows that pushing to High sacrifices 11 FPS (from 71 to 60) without any min FPS data to guarantee stability, making it a riskier choice. At 1440p, only Low (73 FPS) is viable for smooth gameplay, as Medium drops to 49 FPS and High to 41 FPS—both below typical 60 FPS targets. The 4K resolution should be avoided entirely, as even Low only manages 43 FPS, which is below acceptable thresholds for most players.

The Ultra preset is not recommended at any resolution due to its poor performance: 46 FPS at 1080p, 31 FPS at 1440p, and 19 FPS at 4K. The gap between Low and Ultra at 1080p (60 FPS difference) highlights that the GPU struggles with the added effects and texture quality at higher presets, making Medium the sweet spot for this hardware.

CPU Role

The Ryzen 5 8400F brings 6 cores and 12 threads based on the Zen 4 architecture, with a base clock of 4.20 GHz and boost clock of 4.70 GHz. This CPU scores 20851 in Cinebench R23 multi-core and 2943 in single-core, with a PassMark multithread score of 24389. Its percentile ranking of 77 versus all CPUs indicates it is a capable processor that should not bottleneck the GTX 1660 SUPER in most gaming scenarios.

In Rust, which is known for its heavy server-side and simulation workloads, the CPU’s multi-threaded performance is relevant. The 8400F’s 3DMark scores show strong scaling from 2 threads (1874) to 16 threads (6091), with max threads hitting 6165, suggesting it can handle the game’s background processes. However, the single-thread score of 951 in 3DMark and 2943 in Cinebench R23 indicates that while per-core performance is solid, it is not exceptional, which may explain why the system does not push higher frame rates at lower resolutions.

The CPU’s memory support for DDR5 with dual-channel and 83.2 GB/s bandwidth provides ample data throughput for the game engine. The 16 MB shared L3 cache is modest for a modern CPU, but the 4 nm process node and 65 W TDP reveal a focus on efficiency rather than raw performance. In benchmark comparisons, the 8400F is virtually identical to the Ryzen 5 7500F (0.2% delta), meaning the CPU is unlikely to be the deciding factor in FPS differences—the GPU bears that responsibility.

How This Combo Ranks

With a combo rank of 3188 out of 3723 tested configurations, this system sits in the bottom 14% of all tested combos for Rust. This ranking is surprising given the CPU’s strong 77th percentile performance, but it underscores the GPU’s limitations. The GTX 1660 SUPER’s 53rd percentile versus all GPUs is the primary drag on the overall ranking, as the 6 GB VRAM and 192-bit memory bus limit high-resolution performance.

The rank indicates that most tested systems deliver better Rust performance, likely due to more powerful graphics cards. The delta between the CPU and GPU percentiles (77 vs 53) creates an imbalance where the processor has headroom that the graphics card cannot utilize. In practical terms, this means the 8400F could support a faster GPU without becoming a bottleneck, but the 1660 SUPER caps the system’s potential. The combo’s position near the bottom quartile suggests it is suited for 1080p gaming at medium settings, which aligns with the measured FPS data showing playable performance only at that resolution.

GPU Role

The GTX 1660 SUPER is built on the Turing architecture with 1408 shading units, 88 TMUs, and 48 ROPs, running at a base clock of 1530 MHz and boost clock of 1785 MHz. Its memory configuration consists of 6 GB GDDR6 on a 192-bit bus, delivering 336.0 GB/s bandwidth. The GPU achieves 5.027 TFLOPS FP32 performance and has a PassMark G3D score of 12699, placing it in the 53rd percentile of all GPUs.

The 6 GB VRAM is the critical limitation in Rust, particularly at higher resolutions. At 4K, the Ultra preset averages only 19 FPS, while even Low drops to 43 FPS—a clear sign that the memory capacity and bandwidth are overwhelmed. The 192-bit bus, while providing 336.0 GB/s, is insufficient for 4K textures and draw distances. At 1080p, the GPU performs admirably, with Low hitting 106 FPS and Medium at 71 FPS, showing that the 1660 SUPER is well-matched to 1080p gaming.

The GPU’s nearest rivals include the RTX 3050 Ti Mobile (0.4% faster), RX 580 (0.4% faster), and Radeon 740M (0.9% slower), placing it in a tightly packed mid-range tier. The 12 nm process node and 125 W TDP indicate an older design, but the directx 12_1 and Vulkan 1.4 support ensure compatibility with modern games. The 14 Gbps effective memory speed is a highlight, but it cannot compensate for the small 6 GB frame buffer at high resolutions.

Measured FPS Breakdown

At 1920x1080, the system delivers its best performance with averages of 106 FPS on Low, 71 FPS on Medium, 60 FPS on High, and 46 FPS on Ultra. The Medium preset records a minimum of 60 FPS and maximum of 82 FPS, providing the only documented frame time variance in the dataset. The 60 FPS difference between Low and Ultra highlights the GPU’s sensitivity to graphical settings.

Moving to 2560x1440, performance drops significantly: Low averages 73 FPS, Medium 49 FPS, High 41 FPS, and Ultra 31 FPS. The Medium preset shows a minimum of 42 FPS and maximum of 56 FPS, indicating noticeable frame dips during intense scenes. At this resolution, only Low maintains a playable average above 60 FPS, while all other presets fall below that threshold.

At 3840x2160, the system struggles across the board: Low averages 43 FPS, Medium 29 FPS (with a minimum of 25 and maximum of 33), High 24 FPS, and Ultra 19 FPS. None of these averages reach 60 FPS, and even the Low preset feels stuttery. The 4K results confirm that this combo is not designed for high-resolution gaming, with the GPU’s 6 GB VRAM becoming a hard bottleneck.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals the GPU’s dominance as the limiting component. At Low settings, average FPS drops from 106 at 1080p to 73 at 1440p (a 31% reduction) and then to 43 at 4K (a 59% reduction from 1440p). This steep decline is typical of a GPU-bound scenario, where the rendering load increases quadratically with pixel count while the CPU maintains consistent performance.

At Medium settings, the scaling is even more pronounced: 71 FPS at 1080p drops to 49 FPS at 1440p (31% drop) and 29 FPS at 4K (41% drop from 1440p). The Ultra preset shows the most severe scaling, going from 46 FPS at 1080p to 31 FPS at 1440p (33% drop) and 19 FPS at 4K (39% drop from 1440p). This consistent pattern across all presets indicates that the GTX 1660 SUPER cannot handle the increased pixel throughput, while the Ryzen 5 8400F has ample headroom.

The resolution scaling data suggests that for this combo, the GPU is the sole bottleneck at higher resolutions. If the CPU were limiting, we would expect to see smaller FPS differences between 1440p and 4K, as the GPU would be waiting on the processor. Instead, the linear decline in FPS with resolution proves that the 1660 SUPER’s 6 GB VRAM and 336.0 GB/s bandwidth are the constraining factors, making 1080p the only resolution where this system can deliver a consistently smooth experience.