Rust

Rust is a notoriously CPU-bound survival title, and the combination of the AMD Ryzen 5 7500F and the NVIDIA GeForce RTX 4090 produces a fascinating bottleneck profile where the 7500F proves to be the limiting factor at lower resolutions, while the RTX 4090’s immense headroom is only fully taxed at 4K Ultra settings. The measured data shows this pairing ranks 130th out of 3723 tested combinations, placing it in the top 3.5% of all configs for this game, which underscores that despite the CPU bottleneck, this is an exceptionally fast pairing. The Ryzen 5 7500F, with its 6 cores and 12 threads, is a mid-range part that is clearly outpaced by the flagship RTX 4090, leading to a performance curve that is more about CPU scaling than GPU limits.

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

The AMD Ryzen 5 7500F is a 6-core, 12-thread processor based on the Zen 4 architecture, with a base clock of 3.70 GHz and a boost clock of 5.00 GHz. It features a 32 MB shared L3 cache and supports dual-channel DDR5 memory with a bandwidth of 83.2 GB/s. In Rust, which is heavily reliant on single-threaded performance for its simulation and entity update loops, the 7500F’s boost clock of 5.00 GHz is a critical asset. However, the data reveals that this CPU is the primary constraint on frame rates at 1080p and 1440p, as the GPU is often waiting on the processor to deliver draw calls.

Benchmark results for the 7500F show a Cinebench R23 multi-core score of 22799 and a single-core score of 3218, with a Geekbench single-core score of 2374. The processor’s Passmark multithread score is 26825, and its single-thread score is 3841. These figures indicate a strong mid-range CPU, but they pale in comparison to the raw power of the RTX 4090. The percentileVsAllCpus field places it at the 77th percentile, and its nearest rivals include the Intel Core i7-11850H (deltaPct 0.1), AMD Ryzen 5 8400F (deltaPct -0.2), and Intel Core i7-13620H (deltaPct 0.2). This tight grouping around the 7500F’s average benchmark score of 24964 suggests that the CPU’s performance is well understood and consistent, but it is not a top-tier part that can keep up with the RTX 4090’s potential.

In Rust specifically, the impact of the CPU is most visible when comparing resolution scaling. At 1080p Low settings, the average FPS is 224, which drops to 198 at 1440p Low (an 11.6% decrease), and further to 129 at 4K Low (a 42.4% decrease from 1080p). The fact that the 1080p to 1440p drop is relatively small (from 224 to 198 FPS) indicates that the CPU is still the bottleneck at 1440p Low; if the GPU were the limit, the frame rate would drop more steeply with the increased pixel count. The 7500F’s 6 cores and 12 threads are sufficient to handle Rust’s multi-threaded aspects, but the game’s core simulation loop is largely single-threaded, which is why the boost clock of 5.00 GHz is the most important factor here.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4090 is an absolute monster of a GPU, built on the Ada Lovelace architecture with a 5 nm process node and 76,300 million transistors. It features 24 GB of GDDR6X memory on a 384-bit bus, providing a massive 1.01 TB/s of memory bandwidth. The base clock is 2235 MHz with a boost clock of 2520 MHz, and it has 16384 shading units, 512 TMUs, and 176 ROPs. The GPU’s FP32 performance is rated at 82.58 TFLOPS, and its pixel rate is 443.5 GPixel/s. In terms of raw compute, this card is in a league of its own, and its Passmark G3D score of 38194 and 3DMark Steel Nomad DX12 score of 9223 confirm its dominance.

However, the RTX 4090’s role in this particular pairing is often underutilized. At 1080p and 1440p, the GPU is rarely the limiting factor, as evidenced by the frame rates at High settings. At 1080p High, the average FPS is 180, and at 1440p High, it is 124. This 31.1% drop from 1080p to 1440p is more significant than the Low setting drop (11.6%), which suggests that at High settings, the GPU is starting to become more relevant, but the CPU is still holding things back. Only at 4K does the RTX 4090 truly flex its muscles, and even then, the results are telling. At 4K High, the average FPS is 73, which is a 41.1% drop from 1440p High. This is a steep decline, but it is not as steep as the 4K Ultra drop, which suggests that the GPU is now the primary bottleneck at these higher resolutions.

The GPU’s 24 GB of VRAM is more than sufficient for Rust at any resolution, and the 1.01 TB/s bandwidth ensures that texture streaming is never an issue. The percentileVsAllGpus field places the RTX 4090 at the 88th percentile, and its nearest rivals include the Intel Arc Pro A60 (deltaPct 0), AMD Radeon Pro Vega 48 (deltaPct 0.3), and AMD Radeon Pro W6600M (deltaPct -2.5). The deltaPct values here are small, with the closest rival being the Arc Pro A60 at 0% difference, which is surprising given the massive performance gap expected between these cards. This suggests that the benchmark database’s scoring method may not fully capture gaming performance, but the measured FPS data in Rust is clear: the RTX 4090 is capable of far more than this CPU lets it achieve.

FAQ

Q: Why does the frame rate drop so much from 1080p to 4K when the RTX 4090 is so powerful?

A: The frame rate drop from 1080p Low (224 FPS) to 4K Low (129 FPS) is a 42.4% decrease, which is substantial. This indicates that at lower resolutions, the Ryzen 5 7500F is the bottleneck, but as resolution increases, the GPU becomes more involved. At 4K, the RTX 4090 is finally being taxed, but the CPU’s limitations still cap the maximum achievable FPS.

Q: Is the Ryzen 5 7500F a good match for the RTX 4090 in Rust?

A: The data suggests it is a mismatch. The 7500F’s average benchmark score is 24964, while the RTX 4090’s is 60347. In Rust, the CPU is the limiting factor at 1080p and 1440p, as evidenced by the small FPS difference between Low and High settings at these resolutions. The pairing ranks 130th out of 3723 combos, which is good, but not optimal for the GPU’s potential.

Q: What is the best resolution to play Rust at with this setup?

A: Based on the measured FPS, 1440p Medium offers a balance with 147 FPS average, but 1440p High at 124 FPS is also smooth. 4K is playable at High (73 FPS) but drops to 56 FPS at Ultra, which may be too low for fast-paced gameplay. 1080p is overkill for this GPU, as the CPU limits the FPS to 224 at Low.

Q: How does the RTX 4090 compare to its nearest rivals in the benchmark database?

A: The RTX 4090 has an average benchmark score of 60347, which is nearly identical to the Intel Arc Pro A60 (60326, deltaPct 0). The AMD Radeon Pro Vega 48 is 0.3% behind, and the AMD Radeon Pro W6600M is 2.5% ahead. These are synthetic benchmark scores, and in Rust, the RTX 4090’s actual FPS far exceeds what these rival cards could likely achieve.

Q: Does the CPU’s cache size matter for Rust performance?

A: The Ryzen 5 7500F has a 32 MB shared L3 cache, which is standard for its class. Rust benefits from large caches, but the data does not show a direct correlation here. The 5.00 GHz boost clock is more critical for the game’s single-threaded simulation, as higher clock speeds directly reduce latency in CPU-bound scenarios.

Q: What are the minimum and maximum FPS recorded for Medium settings?

A: For Medium settings, the measured data includes min and max FPS values. At 1080p, the min FPS is 164 and max is 222, with an average of 193. At 1440p, the min is 125 and max is 169, with an average of 147. At 4K, the min is 74 and max is 100, with an average of 87. These ranges show that the CPU bottleneck causes more frame time variance at lower resolutions.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data provides a clear picture of how this hardware scales across resolutions and settings. At 1920x1080, the average FPS ranges from 224 at Low settings to 137 at Ultra. The Medium setting yields an average of 193 FPS, with a minimum of 164 and maximum of 222. High settings produce 180 FPS on average. The spread from Low to Ultra is 87 FPS, which is significant, but the fact that Ultra still hits 137 FPS shows the CPU is not completely choking the system.

Moving to 2560x1440, the average FPS drops across the board. Low settings average 198 FPS, a 11.6% decrease from 1080p. Medium averages 147 FPS (min 125, max 169), High averages 124 FPS, and Ultra averages 94 FPS. The gap between Low and Ultra at 1440p is 104 FPS, which is larger than at 1080p, indicating the GPU is becoming more of a factor. The 1440p Medium result is particularly notable, as it offers a smooth 147 FPS with a reasonable frame time consistency (min 125, max 169).

At 3840x2160, the RTX 4090 starts to show its limits in this CPU-bound pairing. Low settings average 129 FPS, which is a 42.4% drop from 1080p. Medium averages 87 FPS (min 74, max 100), High averages 73 FPS, and Ultra averages 56 FPS. The 4K Ultra result of 56 FPS is the only measured setting that falls below the 60 FPS threshold, making it marginal for competitive play. The 4K Medium result of 87 FPS is the sweet spot for 4K gaming, offering a playable frame rate without sacrificing too much visual quality.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The resolution scaling pattern reveals a classic CPU bottleneck. From 1080p to 1440p, the FPS drops are modest. At Low settings, the drop from 224 to 198 FPS is 11.6%. At High settings, the drop from 180 to 124 FPS is 31.1%. The Low setting drop is smaller because the CPU is the limit, and increasing resolution does not stress the CPU much more. The High setting drop is larger because the GPU is being tasked more, but it is still not the primary bottleneck.

From 1440p to 4K, the drops become more pronounced. At Low settings, the drop from 198 to 129 FPS is 34.8%. At High settings, the drop from 124 to 73 FPS is 41.1%. This indicates that at 4K, the GPU is now the limiting factor, but the CPU is still holding back the system. If the CPU were not a constraint, the RTX 4090 would likely push much higher FPS at 4K Low, but the 129 FPS result shows that the 7500F cannot feed the GPU fast enough.

The data also shows that the gap between Low and Ultra settings widens as resolution increases. At 1080p, the difference between Low (224 FPS) and Ultra (137 FPS) is 87 FPS. At 1440p, the difference is 104 FPS (198 vs 94). At 4K, the difference is 73 FPS (129 vs 56). This pattern suggests that at lower resolutions, the CPU is the bottleneck regardless of settings, while at 4K, the GPU’s workload scales with settings, but the CPU’s limit at 129 FPS caps the maximum even at Low.

Settings Recommendations — which preset gives the best experience per the measured rows

For this specific CPU-GPU pairing, the optimal settings depend on the target resolution and frame rate priority. At 1080p, the CPU is the bottleneck, so there is little benefit to lowering settings below High. The measured data shows High at 180 FPS and Medium at 193 FPS, a difference of only 13 FPS. For a smoother experience with higher visual fidelity, High is the better choice, as it offers 180 FPS which is well above the 144Hz refresh rate common on 1080p monitors. Ultra at 137 FPS is also acceptable if visual quality is paramount, but the 43 FPS drop from High is not worth the minor visual gains.

At 1440p, Medium settings provide the best balance, with an average of 147 FPS and a minimum of 125 FPS. This ensures frame times stay above the 125 FPS threshold, which is important for competitive play. High settings at 124 FPS are also viable, but the minimum FPS is not recorded, so the frame time consistency is unknown. Ultra at 94 FPS is playable but may feel less responsive in intense firefights. The data suggests that Medium is the sweet spot for 1440p, as it offers a 23 FPS advantage over High while maintaining visual quality.

At 4K, the RTX 4090’s power is finally utilized, but the CPU still limits the maximum FPS. Medium settings at 87 FPS (min 74, max 100) is the recommended preset, as it provides a playable frame rate with good visual quality. High at 73 FPS is borderline, but the 14 FPS drop from Medium may be noticeable. Ultra at 56 FPS is not recommended for fast-paced gameplay, as it falls below the 60 FPS threshold. Low at 129 FPS is the highest FPS option, but it sacrifices too much visual quality for a game like Rust, where seeing enemies at distance is crucial.

Overall, the data indicates that this pairing is best suited for 1440p Medium or High, where the CPU bottleneck is less severe and the RTX 4090 can still push high frame rates. For 4K, Medium is the only setting that balances performance and quality, with the 87 FPS average providing a smooth experience despite the CPU’s limitations.