Rust

Resolution Scaling

The measured FPS data for Rust with the AMD Ryzen 5 7400F and AMD Radeon RX 6650 XT shows a clear and consistent pattern of performance degradation as resolution increases. At 1920x1080 with High settings, the combo delivers 81 FPS average. Moving to 2560x1440 at the same settings drops that to 56 FPS, a reduction of roughly 31%. At 3840x2160 High, the average falls further to 33 FPS, which represents a 59% decline from the 1080p figure. This scaling pattern strongly indicates that the GPU is the primary limiting component in this configuration, particularly at higher resolutions.

The Low settings preset tells a similar story but with higher absolute numbers. At 1080p Low, the system achieves 143 FPS, which drops to 98 FPS at 1440p and 58 FPS at 4K. The percentage drops are slightly less severe at Low settings — about 31% from 1080p to 1440p and 41% from 1440p to 4K — but the trend is unmistakable. The GPU is being pushed harder as pixel count increases, and the frame rate responds accordingly.

Medium settings show the most complete data set, with minimum and maximum FPS values recorded at every resolution. At 1080p Medium, the average is 96 FPS with a range of 82 to 110 FPS. At 1440p Medium, the average drops to 66 FPS with a range of 56 to 76 FPS. At 4K Medium, the average is 39 FPS with a range of 33 to 45 FPS. The minimum FPS values at each resolution stay proportionally close to the averages, suggesting reasonably consistent frame pacing rather than occasional severe hitches.

Ultra settings produce the lowest frame rates across the board. At 1080p Ultra, the average is 62 FPS. At 1440p Ultra, it falls to 42 FPS. At 4K Ultra, the average is just 25 FPS. The gap between Ultra and High at the same resolution is substantial — at 1080p, the difference is 19 FPS (81 versus 62), and at 4K, it is 8 FPS (33 versus 25). This suggests that the Ultra preset introduces rendering costs that this GPU cannot comfortably absorb at any resolution, but especially at 4K where the result dips below playable thresholds for most users.

The resolution scaling data indicates that the RX 6650 XT with 8 GB of GDDR6 memory and 280.3 GB/s bandwidth begins to struggle as pixel throughput demands increase. At 1080p, the card is able to maintain competitive frame rates across all settings. At 1440p, it remains usable for High and Medium presets. At 4K, even Low settings only yield 58 FPS, and every other preset falls below 40 FPS. The limiting component is clearly the GPU, as the Ryzen 5 7400F with its 6 cores and 12 threads provides ample processing headroom for this title.

FAQ

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

A: The data shows that 1920x1080 is the only resolution where the combo maintains playable frame rates across all settings. At 1080p, even Ultra settings average 62 FPS, while at 1440p Ultra drops to 42 FPS and at 4K Ultra falls to 25 FPS.

Q: How does the Low preset compare to Medium at 1080p?

A: At 1920x1080, Low settings average 143 FPS, while Medium averages 96 FPS with a range of 82 to 110 FPS. The difference of 47 FPS between presets is substantial and suggests that Low offers a significant performance advantage for competitive play.

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

A: At 3840x2160, the best result is 58 FPS on Low settings. Medium averages 39 FPS, High averages 33 FPS, and Ultra averages 25 FPS. These numbers indicate that 4K is only viable with the Low preset, and even then, the frame rate is marginal for a survival game where responsiveness matters.

Q: What is the frame rate range for Medium settings at 1440p?

A: At 2560x1440 Medium, the average FPS is 66, with a minimum of 56 and a maximum of 76. This range shows that the system can dip below 60 FPS during demanding scenes, which could impact gameplay smoothness.

Q: How does the combo rank among all tested combinations in Rust?

A: The combo ranks 1897 out of 2953 tested combinations in this game. This places it in the lower half of all tested systems, which is consistent with the mid-range positioning of the RX 6650 XT and the relatively demanding nature of Rust.

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

A: The resolution scaling data suggests the GPU is the primary limiter. As resolution increases, frame rates drop consistently, which indicates the GPU is saturated. The CPU's 6-core, 12-thread configuration with a boost clock of 4.70 GHz appears sufficient to feed the GPU across all tested settings.

How This Combo Ranks

The AMD Ryzen 5 7400F paired with the AMD Radeon RX 6650 XT achieves a combo rank of 1897 out of 2953 tested combinations in Rust. This places the system in the 64th percentile of all tested combos, meaning roughly one-third of tested systems perform worse and two-thirds perform better. The rank reflects the mid-range nature of both components when applied to Rust's specific engine demands.

For context, the CPU alone sits in the 83rd percentile against all CPUs in the database, with an average benchmark score of 32750. Its nearest rivals include the Intel Core i5-14600T with a score of 32707 (0.1% delta), the Intel Core Ultra 7 155H at 32697 (0.2% delta), and the AMD Ryzen AI 7 PRO 360 at 32662 (0.3% delta). The GPU is less favorably positioned, sitting in the 65th percentile against all GPUs with an average benchmark score of 19765. Its nearest rivals are the NVIDIA Tesla K40m at 19885 (-0.6% delta), the AMD FirePro D300 at 19637 (0.7% delta), and the AMD FirePro W7000 at 19905 (-0.7% delta).

The gap between the CPU's strong relative standing (83rd percentile) and the combo's overall rank (64th percentile) suggests that Rust's performance is heavily influenced by GPU capabilities. The CPU has headroom that the GPU cannot exploit at higher resolutions, which is reflected in the resolution scaling data. The combo rank of 1897 out of 2953 indicates that while this system is far from the bottom, it is also well short of the top tier required for high-refresh-rate play at maximum settings.

The delta percentages between the CPU and its nearest rivals are all within 0.3%, indicating that the Ryzen 5 7400F is competitively positioned in its performance class. The GPU's nearest rivals show deltas within 0.8%, with the Tesla K40m and FirePro W7000 performing slightly better and the FirePro D300 and Quadro K5200 performing slightly worse. These margins are small enough that real-world game performance can vary based on driver optimization and specific workload characteristics.

Measured FPS Breakdown

At 1920x1080, the combo delivers its strongest results across all settings. Low settings produce an average of 143 FPS, which is the highest frame rate recorded for this system in any configuration. Medium settings average 96 FPS with a minimum of 82 and a maximum of 110 FPS. High settings average 81 FPS. Ultra settings produce the lowest 1080p result at 62 FPS. The spread from Low to Ultra at this resolution is 81 FPS, which gives users a wide range of options depending on their priorities.

At 2560x1440, performance drops noticeably across every preset. Low settings average 98 FPS, which remains playable and smooth. Medium settings average 66 FPS with a range of 56 to 76 FPS. High settings average 56 FPS, which is borderline for a game where reaction time matters. Ultra settings average 42 FPS, which is below the threshold for comfortable play in a survival shooter. The drop from 1080p to 1440p ranges from 31% at Low to 32% at High, indicating consistent scaling behavior.

At 3840x2160, the system struggles to maintain playable frame rates in most configurations. Low settings average 58 FPS, which is the only 4K result above 60 FPS. Medium settings average 39 FPS with a range of 33 to 45 FPS. High settings average 33 FPS. Ultra settings average 25 FPS. The 4K results are consistently below what most players would consider acceptable for a game like Rust, where environmental interactions and combat require responsive input.

The Medium settings data provides the most complete picture with minimum and maximum values at every resolution. At 1080p, the range is 82 to 110 FPS, a 28 FPS spread. At 1440p, the range narrows to 56 to 76 FPS, a 20 FPS spread. At 4K, the range is 33 to 45 FPS, a 12 FPS spread. The narrowing range at higher resolutions indicates that the GPU becomes more consistently bottlenecked, reducing frame time variance but also capping peak performance.

Comparing High and Ultra settings at each resolution reveals the cost of the highest quality preset. At 1080p, Ultra is 19 FPS slower than High (62 versus 81). At 1440p, the gap is 14 FPS (42 versus 56). At 4K, the gap is 8 FPS (25 versus 33). The diminishing absolute difference at higher resolutions suggests that the GPU is already saturated by the rendering workload, and the additional quality settings have less relative impact when the base performance is already low.

CPU Role

The AMD Ryzen 5 7400F is a 6-core, 12-thread processor based on the Zen 4 architecture with the Raphael codename. It operates on a 5 nm process node from TSMC, with a base clock of 3.70 GHz and a boost clock of 4.70 GHz. The chip has a 65 W TDP and supports DDR5 memory with a dual-channel bus and 83.2 GB/s bandwidth. The cache hierarchy includes 64 KB of L1 per core, 1 MB of L2 per core, and 32 MB of shared L3 cache.

In synthetic benchmarks, the CPU scores 21765 in Cinebench R23 multi-core and 3072 in single-core. In Cinebench R20, it scores 9141 multi-core and 1290 single-core. PassMark results show a multi-thread score of 25645 and a single-thread score of 3689. The processor sits in the 83rd percentile against all CPUs, with its nearest rivals all within 0.3% of its average score of 32750. This places the Ryzen 5 7400F in a competitive position relative to processors like the Intel Core i5-14600T and the Intel Core Ultra 7 155H.

For Rust, the CPU's role appears to be secondary to the GPU based on the resolution scaling data. At 1080p Low, the combo achieves 143 FPS, which indicates that the CPU is capable of feeding high frame rates to the GPU. The single-core performance of 3072 in Cinebench R23 is likely sufficient for Rust's game logic and physics calculations. The 6-core, 12-thread configuration provides enough parallelism for background tasks and multi-threaded game systems without becoming a bottleneck.

The CPU's 32 MB of shared L3 cache is noteworthy for gaming workloads, as Rust features large, persistent game worlds that benefit from cache locality. The 5 nm process node and 3.70 GHz base clock contribute to power efficiency, which is relevant for sustained performance in long gaming sessions. The boost clock of 4.70 GHz provides headroom for single-threaded tasks that rely on clock speed rather than core count.

The fact that the combo ranks 1897 out of 2953 in Rust, while the CPU alone ranks in the 83rd percentile of all CPUs, suggests that the processor is not the limiting factor in this pairing. The CPU has sufficient compute capability to support higher frame rates than the GPU can deliver at most settings. The data indicates that upgrading the GPU would yield larger performance gains than upgrading the CPU for this game.

Settings Recommendations

Based on the measured FPS data, the optimal settings preset for the AMD Ryzen 5 7400F and AMD Radeon RX 6650 XT combination depends on the target resolution and the user's preference for visual quality versus frame rate.

At 1920x1080, the Medium preset offers the best balance of visual quality and performance. The average of 96 FPS with a range of 82 to 110 FPS keeps the experience above 60 FPS in nearly all scenarios, while providing better visual fidelity than Low. Players who prioritize competitive performance may prefer Low settings, which deliver 143 FPS and maximize responsiveness. High settings at 81 FPS are also viable, but the 15 FPS drop from Medium may not justify the visual improvement for most users. Ultra settings at 62 FPS are playable but leave little headroom for demanding scenes.

At 2560x1440, Medium settings are the recommended choice, with an average of 66 FPS and a range of 56 to 76 FPS. The minimum of 56 FPS is close to the 60 FPS threshold, but the average provides a generally smooth experience. Low settings at 98 FPS offer a significant margin of safety for competitive play. High settings at 56 FPS are borderline, and Ultra at 42 FPS is not recommended for a game where responsiveness is critical.

At 3840x2160, only Low settings are viable for most players, with an average of 58 FPS. This result is just below the 60 FPS target and may be acceptable for less demanding gameplay scenarios. Medium settings at 39 FPS and High at 33 FPS are below the threshold for comfortable play in a survival shooter. Ultra at 25 FPS is not recommended under any circumstances.

The data suggests that the Medium preset provides the best overall experience at 1080p and 1440p, balancing visual quality with playable frame rates. At 4K, the Low preset is the only option that approaches acceptable performance. Users who prefer higher visual fidelity at 1080p may find High settings acceptable, but they should be aware of the reduced frame rate margin. The RX 6650 XT's 8 GB of VRAM is sufficient for Medium settings at all resolutions tested, but Ultra settings may strain memory capacity in complex scenes.

GPU Role

The AMD Radeon RX 6650 XT is based on the Navi 23 chip with RDNA 2.0 architecture, manufactured on a 7 nm process node from TSMC. It features 2048 shading units, 128 TMUs, 64 ROPs, and 32 ray tracing cores. The GPU operates at a base clock of 2055 MHz, a game clock of 2410 MHz, and a boost clock of 2635 MHz. Memory is 8 GB of GDDR6 on a 128-bit bus with 280.3 GB/s bandwidth and an effective speed of 17.5 Gbps.

In synthetic benchmarks, the GPU scores 17166 in PassMark G3D and 1859 in 3DMark Steel Nomad DX12. Geekbench results show 97969 in Metal, 10111 in OpenCL, and 81306 in Vulkan. The GPU sits in the 65th percentile against all GPUs, with an average benchmark score of 19765. Its nearest rivals include the NVIDIA Tesla K40m at 19885 (-0.6% delta) and the AMD FirePro D300 at 19637 (0.7% delta). The GPU has a TDP of 176 W and requires a 450 W power supply, with a PCIe 4.0 x8 interface.

The measured FPS data in Rust clearly demonstrates that the RX 6650 XT is the limiting component in this system. At 1080p, the GPU can deliver 143 FPS on Low settings, but this drops to 62 FPS on Ultra. The 81 FPS difference between these presets indicates that the GPU's compute and memory resources are heavily taxed by the higher quality settings. At 4K, even Low settings only reach 58 FPS, which is the strongest evidence of GPU saturation.

The 8 GB of VRAM is likely a contributing factor to the reduced performance at higher resolutions. Rust's large, persistent world with many dynamic elements can consume significant memory, and the 128-bit memory bus with 280.3 GB/s bandwidth may struggle to feed the GPU at 4K resolutions. The pixel rate of 168.6 GPixel/s and texture rate of 337.3 GTexel/s provide context for the GPU's fill rate capabilities, which are strained at higher pixel counts.

The GPU's 65th percentile ranking against all GPUs, combined with its nearest rivals being professional workstation cards like the Tesla K40m and FirePro W7000, indicates that the RX 6650 XT is positioned in the mid-range of gaming performance. Its 10.79 TFLOPS FP32 compute capability is sufficient for 1080p gaming at high settings but falls short of the demands of 4K Ultra in Rust. The ray tracing cores are present but do not appear to contribute meaningfully to this game's performance, as Rust relies primarily on rasterization.

The end-of-life production status of the RX 6650 XT suggests that driver optimizations may be less frequent going forward, though the current data shows consistent performance across the tested resolutions. For users seeking higher frame rates in Rust, the GPU would need to be upgraded before the CPU, as the Ryzen 5 7400F has demonstrated sufficient headroom to support faster graphics cards.