Rust

Resolution Scaling

The measured frame rates for Rust across three resolutions tell a clear story about where this system's bottleneck lies. At 1920x1080 with Low settings, the AMD Ryzen 7 3700X and NVIDIA GeForce RTX 4090 combination produces 155.1 FPS. Moving to 2560x1440 at the same Low preset drops the average to 138 FPS, a reduction of roughly 11%. At 3840x2160 Low, the average falls further to 116.7 FPS. That progression—155.1 to 138 to 116.7—shows a relatively modest scaling penalty from 1080p to 4K, which suggests the CPU is doing substantial work even at the lowest graphics settings.

The High preset tells a different story. At 1080p High, the combo hits 125.1 FPS. At 1440p High, it manages 110.6 FPS. At 4K High, the average drops to 72.4 FPS. The jump from 1440p to 4K here is particularly steep—a fall of over 34%—indicating that the GPU is becoming the primary limiting factor as resolution climbs. The RTX 4090's 24 GB of GDDR6X memory and 1.01 TB/s bandwidth are being taxed heavily by Rust's high-resolution asset streaming, and the data reflects that.

Ultra settings amplify this trend. The combo delivers 114.9 FPS at 1080p Ultra, 92.7 FPS at 1440p Ultra, and just 56.4 FPS at 4K Ultra. The 1080p-to-1440p drop is about 19%, while the 1440p-to-4K drop is nearly 39%. This nonlinear scaling is classic GPU-bound behavior; as resolution increases, pixel throughput demands grow disproportionately, and even a flagship GPU like the RTX 4090 with its 82.58 TFLOPS FP32 compute begins to show strain.

What do these numbers say about the limiting component? At 1080p, the CPU is clearly influential. The Ryzen 7 3700X, with its 8 cores and 16 threads based on Zen 2 architecture, posts a Cinebench R23 multi-core score of 19087 and a single-core score of 2694. Those are solid but not elite figures, placing the chip at the 85th percentile among all CPUs. The gap between Low and Ultra at 1080p—155.1 vs 114.9 FPS—is 40 FPS, a substantial spread that suggests the CPU's single-thread performance is holding back the GPU at lower resolutions. At 4K, however, the spread between Low and Ultra is narrower in absolute terms (116.7 vs 56.4 FPS), but the low-end figure is still well above playable thresholds.

GPU Role

The NVIDIA GeForce RTX 4090 is the dominant component in this pairing, and its specifications explain why it performs so strongly in Rust. The GPU features 16,384 shading units, 512 texture mapping units, and 176 raster output pipelines, all built on the Ada Lovelace architecture using a 5 nm process from TSMC. Its boost clock of 2520 MHz and base clock of 2235 MHz are high for a desktop GPU, and the 24 GB of GDDR6X memory on a 384-bit bus delivers 1.01 TB/s of bandwidth. That memory capacity is particularly relevant for Rust, a game known for its large, persistent world where texture streaming and draw distances can consume significant VRAM.

The benchmarks for this GPU are impressive. It scores 38194 in Passmark G3D and 317684 in Geekbench OpenCL, placing it at the 91st percentile among all GPUs. Its nearest rivals in the database include the NVIDIA Tesla T4 (with a delta of -0.4%) and the AMD Radeon Pro Vega 56 (with a delta of -0.9%), though those comparisons are based on aggregate benchmark scores rather than Rust-specific performance.

In Rust, the GPU's role becomes more pronounced as settings increase. At 4K Ultra, the combo delivers 56.4 FPS, which is the lowest measured result across all configurations. This is not a reflection of the CPU's inadequacy; rather, it shows that the RTX 4090 is being pushed to its limits by Rust's Ultra preset at 4K. The GPU's 450 W TDP and triple-slot cooler design suggest it is designed for exactly this kind of heavy lifting, but even so, the data indicates that Ultra at 4K is a demanding target for this game.

The GPU also benefits from its architecture's feature set. With 128 ray tracing cores and 512 tensor cores, the RTX 4090 is well equipped for modern rendering techniques, though Rust's implementation does not appear to leverage these aggressively based on the measured FPS. The DirectX 12 Ultimate support (version 12_2) and Vulkan 1.4 compatibility ensure broad API coverage, but the game's performance at higher resolutions seems tied more to raw rasterization throughput than to these specialized units.

How This Combo Ranks

In the database of tested combinations, this pairing of AMD Ryzen 7 3700X and NVIDIA GeForce RTX 4090 achieves a combo rank of 318 out of 1717 total combos. That places it in the top 18.5% of all tested configurations, which is a strong showing given the CPU's age. The Ryzen 7 3700X was released in July 2019 with a launch MSRP of $329, and it has since been superseded by newer architectures. Yet its performance in Rust remains competitive because the game's engine appears to scale well with the 8-core, 16-thread configuration.

The CPU's percentile rank of 85th among all CPUs underscores its enduring capability. Its nearest rivals include the Intel Core i5-12600 (with a delta of -0.1%) and the Intel Core i5-12600H (also -0.1%), as well as the AMD Ryzen 5 5600XT (with a delta of 0.1%). These deltas are minimal, indicating that the 3700X is essentially on par with these newer mid-range parts in aggregate benchmark terms. For Rust specifically, the measured FPS reflects this parity, as the combo's performance at 1080p High (125.1 FPS) is well above the 60 FPS threshold most players target.

The RTX 4090's rank is even more impressive. At the 91st percentile among all GPUs, it sits near the top of the hierarchy. Its nearest rivals in the database—the Tesla T4, Tesla P40, Radeon Pro Vega 56, and Quadro P6000—are all professional or workstation cards, which highlights how the 4090 dominates the consumer segment. In Rust, this GPU's strength is most evident at 1440p, where it delivers 110.6 FPS on High and 92.7 FPS on Ultra. Those are excellent figures for a survival title that often struggles with optimization.

Settings Recommendations

The measured data provides clear guidance for players using this combination. At 1080p, the Low preset yields 155.1 FPS, Medium yields 133.4 FPS, High yields 125.1 FPS, and Ultra yields 114.9 FPS. The difference between High and Ultra is just 10.2 FPS, which is a modest penalty for the visual uplift that Ultra typically provides. Given that even Ultra at 1080p stays well above 100 FPS, players with high-refresh monitors can comfortably max out settings at this resolution.

At 1440p, the picture changes slightly. High delivers 110.6 FPS, while Ultra drops to 92.7 FPS. The gap between Medium (118.1 FPS) and High (110.6 FPS) is 7.5 FPS, suggesting that High is the sweet spot for maintaining a smooth experience while gaining most of the visual benefits. Ultra at 1440p is still playable, but the 92.7 FPS figure is close to the 90 FPS threshold where some players notice minor stutters in busy scenes.

At 4K, the recommendations shift toward lower presets. Low delivers 116.7 FPS, which is surprisingly high for 4K and indicates that the CPU is not a limiting factor at this resolution. Medium drops to 85 FPS, High to 72.4 FPS, and Ultra to 56.4 FPS. For a game like Rust, where survival mechanics require smooth camera movement and fast reactions, a 60 FPS floor is often cited as desirable. Based on the data, High at 4K (72.4 FPS) is the highest preset that reliably exceeds that floor, while Medium (85 FPS) provides a more comfortable margin. Ultra at 4K falls below 60 FPS, making it a poor choice for competitive play.

The overall recommendation from the data is clear: at 1080p and 1440p, players should use High or Ultra for the best balance of visuals and performance. At 4K, Medium or High is advisable, with Ultra reserved for scenarios where frame rate is less critical.

FAQ

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

A: The data shows that 2560x1440 on High delivers 110.6 FPS, which is both smooth and visually detailed. At 4K, High drops to 72.4 FPS, still playable but with less headroom.

Q: Can this system handle 4K Ultra in Rust?

A: The measured average is 56.4 FPS at 4K Ultra, which falls below the 60 FPS threshold many players prefer. Medium at 4K provides 85 FPS and is a better choice for consistent performance.

Q: How does the Ryzen 7 3700X compare to its nearest rivals?

A: The CPU's average benchmark score is 28631, which is within 0.2% of the Intel Core i5-12600, Intel Core i5-12600H, AMD Ryzen 5 5600XT, and AMD EPYC 7203P. The deltas range from -0.1% to 0.2%, indicating near-identical aggregate performance.

Q: What is the GPU's percentile ranking?

A: The NVIDIA GeForce RTX 4090 is at the 91st percentile among all GPUs, with an average benchmark score of 66473. Its nearest rival, the NVIDIA Tesla T4, scores 66733 with a delta of -0.4%.

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

A: At 1080p Low, the combo hits 155.1 FPS, while at 1080p Ultra it drops to 114.9 FPS. The relatively small spread suggests the CPU is not severely limiting the GPU at this resolution, but the gap widens at 4K, where the GPU becomes the clear bottleneck.

Q: What settings should I use for a high refresh rate display?

A: At 1080p, all presets exceed 114 FPS, so Ultra is viable. At 1440p, Ultra delivers 92.7 FPS, which is sufficient for most 100 Hz monitors. For a 144 Hz display at 1440p, High (110.6 FPS) is the better choice.