Rust

The AMD Ryzen 7 9700X paired with the AMD Radeon RX 7900 XT produces a wide performance spread in Rust, one that clearly separates the CPU’s raw computational headroom from the GPU’s rendering workload. This combination ranks 281st out of 1717 tested combos, placing it in the top 16.4% of all configurations. The measured FPS data reveals a system that is heavily influenced by both resolution and preset, with the Low preset at 1080p hitting 240 FPS while the Ultra preset at 4K drops to just 40.4 FPS. This is not a subtle scaling curve; it is a dramatic shift that points to different bottlenecks at each extreme.

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

The FPS drop from 1080p to 4K is steep and consistent across every preset. At High settings, the average falls from 138 FPS at 1920x1080 to 96.6 FPS at 2560x1440, then down to 54.3 FPS at 3840x2160. That is a 60.7% reduction from 1080p to 4K. At Low settings, the drop is even more pronounced in absolute terms: from 240 FPS at 1080p to 167.5 FPS at 1440p and 98.7 FPS at 4K — a 58.9% decline. Medium settings follow a similar trajectory: 163.4 FPS at 1080p, 113.3 FPS at 1440p, and 65.3 FPS at 4K, a 60% loss. Ultra settings show the largest relative drop: 107.3 FPS at 1080p, 70.2 FPS at 1440p, and 40.4 FPS at 4K, a 62.3% reduction.

This scaling pattern tells a clear story. At 1080p, the CPU is the primary driver, with the Ryzen 7 9700X’s 8 cores and 16 threads pushing frame rates high enough that the GPU has room to spare. At 4K, the RX 7900 XT becomes the bottleneck, as its 20 GB of GDDR6 memory and 800.0 GB/s bandwidth are tasked with rendering four times the pixels. The fact that Low settings at 4K (98.7 FPS) still beat High settings at 1440p (96.6 FPS) suggests that the GPU’s shading units and ROPs are heavily taxed by higher presets, not just resolution. The RX 7900 XT has 5376 shading units and 192 ROPs, but the data indicates that at 4K, the sheer fill rate demand outweighs the CPU’s ability to feed the pipeline efficiently.

The gap between Low and Ultra at the same resolution also widens as resolution increases. At 1080p, the difference is 132.7 FPS (240 vs 107.3). At 1440p, it is 97.3 FPS (167.5 vs 70.2). At 4K, it shrinks to 58.3 FPS (98.7 vs 40.4). This narrowing gap is a classic sign of GPU saturation — at lower resolutions, the CPU can compensate for heavier settings, but at 4K, the GPU’s limits dominate regardless of preset.

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

The Ryzen 7 9700X is a Zen 5 architecture processor built on a 4 nm TSMC process, with 8 cores and 16 threads. Its base clock is 3.80 GHz and boost clock is 5.50 GHz. In synthetic benchmarks, it scores 1280 in 3dmark_single_thread and 9771 in 3dmark_max_threads, with a Cinebench R23 multicore score of 31588 and singlecore score of 4459. These numbers indicate strong single-thread performance, which is crucial for Rust’s game logic and physics simulation.

The benchmark results at 1080p Low (240 FPS) show what this CPU can do when the GPU is not the limiting factor. The 16 threads help maintain high average frame rates, but the data suggests that Rust does not scale perfectly with all cores. The 3dmark_16_threads score of 9824 is nearly identical to the max_threads score of 9771, implying that the CPU’s performance is already saturated at 16 threads. In-game, this means the Ryzen 7 9700X has enough headroom to avoid becoming a bottleneck at 1080p, but the frame rate ceiling is still set by the game’s engine, not the processor.

Comparing to rivals, the Ryzen 7 9700X’s average benchmark score of 36029 is 0.2% higher than the Intel Core i5-14500HX (35940) and 0.6% higher than the AMD Ryzen 7 PRO 5845 (35802). It trails the Intel Core Ultra 9 185H by 0.4% and the Intel Core Ultra 5 225H by 0.8%. This puts the 9700X in a tight cluster of mid-to-high-range CPUs, where single-thread performance and core count are balanced. The 89th percentile ranking versus all CPUs confirms it is a top-tier processor, but the FPS data shows that in Rust, the CPU’s role is more about maintaining minimum frame rates and avoiding dips rather than maximizing peak FPS at high resolutions.

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

The Radeon RX 7900 XT is built on RDNA 3.0 architecture with a Navi 31 chip, manufactured on a 5 nm TSMC process. It features 20 GB of GDDR6 memory on a 320-bit bus, delivering 800.0 GB/s of bandwidth. The boost clock is 2394 MHz with a game clock of 2025 MHz. Its pixel rate is 459.6 GPixel/s and texture rate is 804.4 GTexel/s, with FP32 performance of 51.48 TFLOPS. These specs place it as a high-end GPU, and its 82nd percentile ranking versus all GPUs reflects that.

The measured FPS data shows that the GPU’s performance is heavily dependent on resolution. At 4K Ultra, the 40.4 FPS average is below the 60 FPS threshold that most gamers consider playable. At 4K High, 54.3 FPS is still a struggle. The 4K Low preset at 98.7 FPS is more acceptable, but it requires sacrificing visual quality. This indicates that the RX 7900 XT, despite its 20 GB VRAM, is not fully capable of handling Rust at 4K with high settings — the game’s draw distances and texture detail are likely the culprits, given the 800.0 GB/s bandwidth is ample for most titles.

At 1440p, the GPU performs much better. High settings yield 96.6 FPS, which is smooth, and Medium settings hit 113.3 FPS. At 1080p, the GPU is rarely the bottleneck, with High settings at 138 FPS and Medium at 163.4 FPS. The gap between Low and Ultra at 1080p (132.7 FPS) shows that the GPU can handle the increased load when the CPU is strong enough. Compared to rivals, the RX 7900 XT’s average benchmark score of 38358 is essentially tied with the NVIDIA GeForce RTX 5080 Mobile (38349, 0% delta) and NVIDIA CMP 70HX (38225, 0.3% delta). It is 0.4% behind the NVIDIA GeForce MX570 and 0.6% ahead of the NVIDIA GeForce RTX 4080 Mobile. This suggests the GPU is well-positioned, but Rust’s specific rendering demands at 4K push it beyond its comfort zone.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combo ranks 281st out of 1717 tested combinations, which places it in the top 16.4% of all systems tested in Rust. This is a strong showing, but the rank is not as high as the individual component percentiles might suggest. The CPU is in the 89th percentile and the GPU is in the 82nd percentile, yet the combo rank is only 83.6th percentile. This discrepancy indicates that Rust’s performance is not purely additive — the game’s engine may not fully utilize the combination’s strengths.

The rank implies that there are 280 combos that outperform this setup, likely including configurations with more powerful GPUs or CPUs that are better optimized for Rust’s specific workload. The data suggests that the Ryzen 7 9700X’s 8 cores are sufficient, but the RX 7900 XT’s 20 GB VRAM is not the limiting factor in most cases. Instead, the combo’s rank is likely dragged down by 4K performance, where the GPU struggles to maintain high frame rates. At 1080p and 1440p, this combo would rank much higher, but the 4K results pull the overall rank down.

The deltaPct values for the CPU’s nearest rivals are all within 0.8%, meaning the choice of CPU has minimal impact on the combo’s overall performance in Rust. The GPU’s nearest rivals are also within 0.6%, but the RX 7900 XT’s 4K performance is what separates it from lower-tier GPUs. This combo is a solid mid-to-high-end choice, but for 4K gaming, a more powerful GPU would be necessary to crack the top 200.

FAQ

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

A: The data shows 2560x1440 as the sweet spot, where High settings deliver 96.6 FPS and Medium settings hit 113.3 FPS. At 4K, even High settings only reach 54.3 FPS, so 1440p is the recommended resolution for a balanced experience.

Q: Does the CPU or GPU bottleneck this combo at 1080p?

A: At 1080p, the CPU is the primary driver, as evidenced by the 240 FPS Low preset and 138 FPS High preset. The GPU has enough headroom, but the CPU’s 8 cores and 16 threads set the ceiling.

Q: How does the RX 7900 XT’s 20 GB VRAM affect 4K performance?

A: The 20 GB VRAM is not the limiting factor, as the 4K Ultra preset drops to 40.4 FPS. The bottleneck is the GPU’s shading units and ROPs, not memory capacity, since the 800.0 GB/s bandwidth is sufficient.

Q: Is this combo better than a system with an Intel Core i5-14500HX?

A: The Ryzen 7 9700X has a 0.2% higher average benchmark score than the Intel Core i5-14500HX, but in Rust, the difference is negligible. The combo rank is more influenced by the GPU than the CPU.

Q: What preset should be used at 4K for playable frame rates?

A: Low settings at 4K yield 98.7 FPS, which is playable. Medium settings drop to 65.3 FPS, and High settings fall to 54.3 FPS. For 4K, Low is the only preset that maintains above 60 FPS.

Q: How does the combo’s rank compare to its component percentiles?

A: The CPU is in the 89th percentile and the GPU is in the 82nd percentile, but the combo ranks 281st out of 1717 (top 16.4%). This indicates the combo performs slightly below expectations, likely due to 4K limitations.

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

At 1920x1080, the Low preset delivers 240 FPS, Medium delivers 163.4 FPS, High delivers 138 FPS, and Ultra delivers 107.3 FPS. The step from Low to Medium is a 76.6 FPS drop, while the step from High to Ultra is only 30.7 FPS, showing diminishing returns at higher settings.

At 2560x1440, Low delivers 167.5 FPS, Medium delivers 113.3 FPS, High delivers 96.6 FPS, and Ultra delivers 70.2 FPS. The drop from Low to Medium is 54.2 FPS, and from High to Ultra is 26.4 FPS. The relative gaps between presets are similar to 1080p, but the absolute numbers are lower.

At 3840x2160, Low delivers 98.7 FPS, Medium delivers 65.3 FPS, High delivers 54.3 FPS, and Ultra delivers 40.4 FPS. The drop from Low to Medium is 33.4 FPS, and from High to Ultra is 13.9 FPS. This is the tightest spread across presets, confirming that the GPU is the limiting factor at 4K.

The data also reveals that the FPS difference between 1080p and 1440p (at the same preset) is around 72-75 FPS for Low, 50 FPS for Medium, 41.4 FPS for High, and 37.1 FPS for Ultra. The difference between 1440p and 4K is 68.8 FPS for Low, 48 FPS for Medium, 42.3 FPS for High, and 29.8 FPS for Ultra. This shows that the scaling penalty is largest when moving from 1080p to 1440p, and slightly smaller when moving from 1440p to 4K.

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

For 1080p, the Medium preset at 163.4 FPS is the best balance of visual quality and performance. High settings at 138 FPS are also smooth, but the 25.4 FPS difference between Medium and High is not worth the visual upgrade for competitive play. Ultra at 107.3 FPS is playable but not ideal for fast-paced action.

For 1440p, Medium settings at 113.3 FPS are the recommended choice. High settings at 96.6 FPS are still above 60 FPS and offer better visuals, but the drop from 113.3 to 96.6 FPS is significant. Low settings at 167.5 FPS are for players who prioritize frame rate above all else. Ultra at 70.2 FPS is the minimum recommended for a smooth experience.

For 4K, Low settings at 98.7 FPS are the only preset that consistently stays above 60 FPS. Medium at 65.3 FPS is borderline, and High at 54.3 FPS is not recommended for competitive play. Ultra at 40.4 FPS is only suitable for single-player or screenshot purposes. The data strongly suggests that 4K gaming with this combo requires sacrificing visual fidelity to maintain frame rates.

The best overall experience across all resolutions is 1440p Medium, which offers 113.3 FPS — a number that balances the CPU’s 16-thread capacity with the GPU’s 5376 shading units. For players with 1080p monitors, Medium is the sweet spot. For 4K displays, the Low preset is the only viable option for serious gameplay. This combo is versatile, but its performance ceiling is clearly defined by the measured rows.