Rust

# Resolution Scaling

The measured FPS data for Rust with the AMD Ryzen 7 9700X and NVIDIA GeForce RTX 4080 reveals a pronounced resolution scaling curve that shifts character depending on the graphics preset. At Low settings, the frame rate drops from 272 FPS at 1920x1080 to 198 FPS at 2560x1440 and finally to 117 FPS at 3840x2160. That represents a 27% reduction from 1080p to 1440p, and a further 41% reduction from 1440p to 4K. The Low preset is clearly operating in a GPU-bound regime at higher resolutions, with the pixel throughput demands of 4K overwhelming the RTX 4080's rendering capacity.

Moving to Medium settings, the pattern changes: 193 FPS at 1080p, 133 FPS at 1440p, and 79 FPS at 4K. The percentage drops are similar to Low — about 31% from 1080p to 1440p and 41% from 1440p to 4K — but the absolute numbers are lower, indicating that the additional shading work is already taxing the GPU more heavily even at 1080p. The High preset shows 163 FPS at 1080p, 112 FPS at 1440p, and 66 FPS at 4K, with a 31% drop from 1080p to 1440p and a 41% drop from 1440p to 4K, mirroring the relative scaling of Medium.

Ultra settings tell a different story. At 1080p, the combo manages 124 FPS, which drops to 85 FPS at 1440p (a 31% reduction) and then to 50 FPS at 4K (a 41% reduction from 1440p). The consistency of these percentage drops across all four presets — roughly 31% for the first step and 41% for the second — suggests that the scaling bottleneck is primarily the GPU's fill rate and shading throughput, not the CPU or memory subsystem. The RTX 4080's 280.6 GPixel/s pixel rate and 761.5 GTexel/s texture rate are being pushed to their limits as resolution climbs, and the data shows no sign of the CPU becoming the limiting factor at any resolution.

The implication is clear: for players targeting 4K, even the High preset at 66 FPS average will struggle to maintain smooth gameplay, while Ultra at 50 FPS is borderline unplayable for competitive scenarios. At 1440p, the High preset's 112 FPS is much more comfortable, and at 1080p, Medium's 193 FPS shows the combo has headroom to spare. The measured data indicates that the RTX 4080's 16 GB of GDDR6X memory is not a limiting factor here — the bandwidth of 716.8 GB/s is ample for Rust's texture streaming — but the raw compute load of higher resolutions is what drives the FPS down.

# FAQ

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

A: The data shows 2560x1440 as the sweet spot. At High settings, it delivers 112 FPS average, which is 70% higher than the 4K High result of 66 FPS. The 1440p High combination offers a strong balance between visual fidelity and smoothness, while 1080p High at 163 FPS exceeds what most displays can show.

Q: How does the Ultra preset compare to High at 4K?

A: Ultra at 3840x2160 averages 50 FPS, while High averages 66 FPS — a 32% improvement in frame rate by dropping one preset level. The gap between Medium (79 FPS) and High (66 FPS) is 20%, and between Low (117 FPS) and Medium is 48%, showing diminishing returns as settings increase.

Q: Is the CPU or GPU more responsible for the frame rate at 1080p Low?

A: The 272 FPS result at 1920x1080 Low indicates the CPU is keeping pace with the RTX 4080's output. The Ryzen 7 9700X's 8 cores and 16 threads, boosted up to 5.50 GHz, provide sufficient single-thread throughput for Rust's simulation load, as evidenced by the high frame rates not dropping below what the GPU can render.

Q: What frame rate can I expect at 1440p Medium?

A: The measured average is 133 FPS, with a minimum of 113 FPS and a maximum of 153 FPS. This range suggests that while average performance is strong, there are occasional dips that could be noticeable on high-refresh-rate displays.

Q: Does the RTX 4080's VRAM capacity affect Rust's performance at 4K?

A: The 16 GB GDDR6X memory is not a bottleneck in the measured data. The frame rate scaling from 1080p to 4K is consistent across presets, indicating compute-bound behavior rather than memory capacity limits. The 716.8 GB/s bandwidth is sufficient for the game's demands.

Q: How does this combo rank against other tested combinations?

A: It ranks 178th out of 3723 tested combos in Rust, placing it in the top 5% of all configurations. This percentile position reflects the strong synergy between the Ryzen 7 9700X and RTX 4080, though the rank is more indicative of the GPU's capability than the CPU's, given the resolution-dependent scaling.

# Settings Recommendations

The measured FPS data provides a clear hierarchy for settings optimization. At 1920x1080, the Low preset delivers 272 FPS, Medium delivers 193 FPS, High delivers 163 FPS, and Ultra delivers 124 FPS. The jump from Low to Medium costs 79 FPS (29% reduction), while the jump from Medium to High costs 30 FPS (16% reduction), and from High to Ultra costs 39 FPS (24% reduction). For competitive play at 1080p, Medium offers the best balance — 193 FPS is well above the 144 Hz refresh rate of most gaming monitors, while the visual improvements over Low are substantial.

At 2560x1440, the picture changes. Low produces 198 FPS, Medium 133 FPS, High 112 FPS, and Ultra 85 FPS. The Medium preset's 133 FPS is the highest setting that stays above 120 FPS, making it the recommended choice for 144 Hz displays. High at 112 FPS is still smooth but falls below the 120 FPS threshold, and Ultra at 85 FPS is more suited to 60 Hz displays. The data suggests that 1440p High is the best experience for visual quality without sacrificing too much smoothness, as the 21 FPS difference between High and Medium is less impactful than the 27 FPS difference between Ultra and High.

For 3840x2160, the options are more constrained. Low achieves 117 FPS, Medium 79 FPS, High 66 FPS, and Ultra 50 FPS. Only Low clears the 60 FPS bar, and it does so by a significant margin. Medium at 79 FPS is playable on 60 Hz displays, but the 38 FPS drop from Low to Medium is steep. High at 66 FPS is borderline, and Ultra at 50 FPS will exhibit noticeable stutter on most displays. For 4K gaming, the data strongly suggests either Low for maximum smoothness or Medium as a compromise, accepting that High and Ultra are only viable for turn-based or slow-paced scenarios.

The overall recommendation across all resolutions is to prioritize Medium or High settings, depending on the display's refresh rate. The measured minimums for Medium — 164 FPS at 1080p, 113 FPS at 1440p, and 67 FPS at 4K — indicate that even the worst-case frames are playable at 1080p and 1440p, while the 4K minimum of 67 FPS is acceptable for 60 Hz displays.

# How This Combo Ranks

The combo of AMD Ryzen 7 9700X and NVIDIA GeForce RTX 4080 ranks 178th out of 3723 tested combinations in Rust. This places it in the top 4.8% of all configurations, which is an exceptionally strong showing for a game that is known to be CPU-sensitive. The rank reflects the combined capability of the 8-core, 16-thread processor and the high-end GPU, with the percentile position suggesting that most of the 3723 combos are either older hardware or more balanced toward one component.

The CPU's individual percentile is 86th among all CPUs, and the GPU's percentile is also 86th among all GPUs. This symmetry indicates that neither component is dramatically outclassing the other, which is unusual for a pairing of a mid-range Ryzen 7 with a flagship-tier RTX 4080. The rank of 178 in Rust specifically suggests that the game benefits from the CPU's strong single-thread performance — its PassMark single-thread score of 4654 and 3DMark single-thread score of 1280 are robust — while the GPU's 3DMark Steel Nomad DX12 score of 6567 handles the rendering load.

Compared to the nearest rival CPUs, the Ryzen 7 9700X is essentially tied with the Intel Core i9-14901E (0.1% delta), the AMD Ryzen AI 9 HX 370 (0.1% delta), the Intel Core 5 211E (0.3% delta), and the AMD Ryzen AI Embedded P132 (0.4% delta). This tight clustering means that swapping the CPU for any of these alternatives would produce nearly identical Rust performance, emphasizing that the GPU is the primary driver of the combo's rank. For the GPU, the closest rival is the RTX 4080 SUPER (0.1% delta), followed by the Radeon Pro W5700X (-1.1%), Radeon RX 6750 GRE 12 GB (-2.6%), and Radeon 8060S (-2.7%) — all of which are within a few percentage points, reinforcing that the RTX 4080's position in the combo is well-optimized.

# GPU Role

The NVIDIA GeForce RTX 4080 is the dominant component in determining Rust's frame rates, as evidenced by the resolution scaling data. Its 16 GB of GDDR6X memory, running at 22.4 Gbps effective with a 256-bit bus, provides 716.8 GB/s of bandwidth — more than sufficient for Rust's open-world terrain and building textures. The 9728 shading units, 304 TMUs, and 112 ROPs are the workhorses for the game's rendering, and the measured FPS across resolutions shows a clear GPU-bound pattern.

The RTX 4080's boost clock of 2505 MHz, up from a base of 2205 MHz, allows it to sustain high throughput in sustained gaming loads. The 48.74 TFLOPS of FP32 compute is the raw horsepower behind the pixel and texture rates — 280.6 GPixel/s and 761.5 GTexel/s, respectively. In Rust, which uses DirectX 12 (the card supports 12 Ultimate), these metrics translate directly to the frame rates seen in the data: 272 FPS at 1080p Low, 193 FPS at 1080p Medium, 163 FPS at 1080p High, and 124 FPS at 1080p Ultra.

The GPU's 86th percentile ranking among all GPUs, with an average benchmark score of 54247, places it in the upper echelon of graphics cards. Its nearest rival, the RTX 4080 SUPER, scores 54209 (0.1% delta), meaning the performance difference is negligible in synthetic tests. The measured Rust data confirms this — the card's 320W TDP is the cost of maintaining these frame rates, and the triple-slot design with a 16-pin power connector is necessary to feed the AD103 chip's appetite.

At 4K, the GPU's limits become apparent: the 50 FPS Ultra result and 66 FPS High result show that even this high-end card struggles with Rust's most demanding settings at that resolution. The 117 FPS Low result at 4K is more respectable, but it requires sacrificing most visual features. The data indicates that the RTX 4080's VRAM capacity is never the limiting factor — the 16 GB pool is ample for Rust's asset streaming — but the compute load at 4K Ultra is simply too heavy for the card's 112 ROPs to handle at high frame rates.

# Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates across all presets. Low settings produce an average of 272 FPS, Medium averages 193 FPS with a minimum of 164 FPS and a maximum of 222 FPS, High averages 163 FPS, and Ultra averages 124 FPS. The 1080p data shows a clear stepwise reduction as settings increase, with the largest single drop occurring between Low and Medium (79 FPS), followed by Medium to High (30 FPS), and High to Ultra (39 FPS).

Moving to 2560x1440, the frame rates scale down proportionally. Low averages 198 FPS, Medium averages 133 FPS with a minimum of 113 FPS and a maximum of 153 FPS, High averages 112 FPS, and Ultra averages 85 FPS. The percentage reductions from 1080p are remarkably consistent: 27% for Low, 31% for Medium, 31% for High, and 31% for Ultra. This uniformity suggests that the GPU's workload scales linearly with pixel count, with no unexpected bottlenecks emerging at 1440p.

At 3840x2160, the frame rates drop further. Low averages 117 FPS, Medium averages 79 FPS with a minimum of 67 FPS and a maximum of 90 FPS, High averages 66 FPS, and Ultra averages 50 FPS. The reduction from 1440p is 41% for Low, 41% for Medium, 41% for High, and 41% for Ultra — again perfectly consistent. This 41% drop for a 2.25x increase in pixel count (from 3.7 million to 8.3 million) indicates that the RTX 4080 is not fully utilizing its compute resources at 4K, likely due to memory bandwidth or ROP limitations.

The minimum FPS data, available only for Medium settings, shows that the worst-case frames are 164 FPS at 1080p, 113 FPS at 1440p, and 67 FPS at 4K. These minimums are 85%, 85%, and 85% of the respective averages, indicating stable frame pacing without severe hitches. The maximum FPS values — 222 at 1080p, 153 at 1440p, and 90 at 4K — suggest that there is headroom for occasional bursts of performance, but the averages are the more reliable indicator of sustained gameplay.

# CPU Role

The AMD Ryzen 7 9700X plays a supporting role in Rust's performance, but its contribution is essential for achieving the high frame rates seen in the lower-resolution data. The processor's 8 cores and 16 threads, based on the Zen 5 architecture on a 4 nm process, provide the computational foundation for the game's simulation, physics, and AI logic. Its base clock of 3.80 GHz and boost clock of 5.50 GHz allow it to handle Rust's single-threaded bottlenecks, as evidenced by the 3DMark single-thread score of 1280 and PassMark single-thread score of 4654.

The CPU's 32 MB of shared L3 cache and 1 MB L2 cache per core are critical for Rust's terrain and building logic, which frequently access the same data. The 89.6 GB/s of dual-channel DDR5 memory bandwidth ensures that the CPU can feed data to the GPU without starving it, particularly at 1080p where the CPU is more likely to be the limiting factor. The measured 272 FPS at 1080p Low suggests that the CPU can sustain a very high instruction throughput, though it's unclear whether this is the absolute ceiling or if the GPU is still the bottleneck at that point.

In synthetic benchmarks, the Ryzen 7 9700X scores 20485 in Cinebench R23 multicore and 2211 in single-core, with a Geekbench multicore score of 17906 and single-core score of 3023. These scores place it at the 86th percentile among all CPUs, with an average benchmark score of 37943. Its nearest rivals — the Intel Core i9-14901E (37911, 0.1% delta), AMD Ryzen AI 9 HX 370 (37904, 0.1% delta), Intel Core 5 211E (37829, 0.3% delta), and AMD Ryzen AI Embedded P132 (37804, 0.4% delta) — are all within 0.4% of its performance, meaning that the specific CPU choice matters little for Rust's frame rates.

The CPU's 65W TDP is remarkably low for an 8-core processor, which suggests that thermal throttling is unlikely to be an issue even in extended gaming sessions. The 4 nm TSMC process and 8,315 million transistors on a 70.6 mm² die indicate high efficiency, and the 3DMark max-thread score of 9771 (versus 9824 for 16-thread) shows that the CPU scales well with multi-threaded workloads. In Rust, where the game's server-side simulation and client-side rendering run concurrently, the 16 threads provide ample parallelism, though the data suggests that single-thread performance is more critical for achieving the highest frame rates at 1080p.