Rust

The AMD Ryzen 9 7900X paired with the AMD Radeon RX 6750 XT delivers a highly playable Rust experience at 1080p and 1440p, though 4K requires significant settings compromises. The data shows a system that is firmly CPU-bound at lower resolutions, with the GPU taking over as the primary bottleneck as resolution increases. The measured average frame rates across twelve settings and resolution combinations indicate that this combo ranks 811th out of 1717 tested combinations in the database.

FAQ

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

A: The data shows that 2560x1440 on Low settings yields 118.9 FPS, while 1920x1080 on Low reaches 172.5 FPS. For a balance of visual quality and performance, 2560x1440 on High settings produces 69.6 FPS.

Q: How does the Ryzen 9 7900X compare to its nearest rivals in synthetic benchmarks?

A: The Ryzen 9 7900X has an average benchmark score of 50556, placing it 93rd percentile among all CPUs. It is essentially tied with the Intel Core Ultra 5 235, which scores 50598, showing a delta of -0.1%. It sits 0.4% behind the AMD Ryzen 9 5900XT and 0.8% behind the Intel Core i9-13980HX.

Q: What is the GPU's performance percentile and how does it stack up against similar cards?

A: The RX 6750 XT's average benchmark score is 35327, placing it in the 79th percentile of all GPUs. Its nearest rival is the AMD Radeon RX 5600M, which scores 35264, a delta of 0.2%. The NVIDIA GeForce RTX 5070 Ti Mobile trails by 0.3%.

Q: What is the difference in frame rate between Low and Ultra settings at 1080p?

A: At 1920x1080, the average FPS drops from 172.5 on Low settings to 75.6 on Ultra settings. This represents a reduction of 96.9 FPS, or approximately 56%, when moving to the highest preset.

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

A: The measured data shows 4K performance is limited. At 3840x2160, the average frame rate is 71.1 FPS on Low settings, but this falls to 41.9 FPS on High and 27.3 FPS on Ultra. Only the Low preset at 4K achieves a playable average above 60 FPS.

Q: How does the CPU's multi-threaded performance compare to its single-threaded performance?

A: The Ryzen 9 7900X scores 12536 in 3dmark_max_threads versus 1093 in 3dmark_single_thread. In Cinebench R23, the multicore score is 43695 while the single-core score is 6168, indicating strong scaling across its 12 cores and 24 threads.

GPU Role

The AMD Radeon RX 6750 XT is built on the RDNA 2.0 architecture with a Navi 22 chip manufactured on a 7 nm process. It features 2560 shading units, 160 texture mapping units, and 64 render output units, along with 40 ray tracing cores. The GPU operates at a base clock of 2150 MHz and a boost clock of 2600 MHz, with a game clock of 2495 MHz. Its 12 GB of GDDR6 memory runs at 2250 MHz with an 18 Gbps effective data rate across a 192-bit bus, delivering a memory bandwidth of 432.0 GB/s.

The GPU's compute capabilities include a pixel rate of 166.4 GPixel/s and a texture rate of 416.0 GTexel/s, with FP32 performance reaching 13.31 TFLOPS. These specifications place the RX 6750 XT in the 79th percentile of all GPUs with an average benchmark score of 35327. The data shows it performs nearly identically to the AMD Radeon RX 5600M, with a delta of 0.2%, and it edges out the NVIDIA GeForce RTX 3070 Ti Mobile by 0.3%.

In Rust, the GPU's role becomes increasingly significant as resolution rises. At 1080p Low settings, the system achieves 172.5 FPS, but this drops to 118.9 FPS at 1440p and 71.1 FPS at 4K, showing the GPU's load scaling with pixel count. The memory subsystem, with its 432.0 GB/s bandwidth, proves adequate for the game's texture streaming at all tested settings, though the 12 GB capacity is the key factor enabling Ultra settings at 1080p without stutter.

CPU Role

The AMD Ryzen 9 7900X is a 12-core, 24-thread processor from the 7000 series, built on the Zen 4 architecture (codenamed Raphael) using a 5 nm process at TSMC. It has a base clock of 4.70 GHz and a boost clock of 5.60 GHz, with a TDP of 170 W. The processor features a 64 KB L1 cache per core, 1 MB L2 cache per core, and 64 MB of shared L3 cache, supporting DDR5 memory over a dual-channel bus with 83.2 GB/s bandwidth.

The CPU's benchmark results show strong single-threaded and multi-threaded performance. It scores 6168 in Cinebench R23 single-core and 43695 in multicore, while Geekbench scores reach 2952 single-core and 17830 multicore. In PassMark, the multithread score is 51406, with single-thread performance at 4238. The 3DMark scores scale from 1093 in single-thread to 12536 in max-threads, demonstrating excellent thread scaling across the 12 cores.

The Ryzen 9 7900X ranks in the 93rd percentile of all CPUs with an average benchmark score of 50556. Its nearest rival, the Intel Core Ultra 5 235, scores 50598, a delta of -0.1%, while the AMD Ryzen 9 5900XT scores 50738, a delta of -0.4%. This places the 7900X in a tight cluster of high-end processors.

In Rust, the CPU's role is critical at lower resolutions where the GPU is not saturated. At 1080p, the difference between Low (172.5 FPS) and Medium (113.8 FPS) settings is 58.7 FPS, indicating that CPU-bound scenarios at Low settings are limited by the processor. The 64 MB L3 cache is particularly beneficial for Rust's entity-heavy world simulation, which frequently accesses scattered memory regions.

Measured FPS Breakdown

At 1920x1080, the measured average frame rates span from 172.5 FPS on Low settings to 75.6 FPS on Ultra settings. The Medium preset delivers 113.8 FPS, while High achieves 98.1 FPS. This represents a performance drop of 74.4 FPS (43%) from Low to High, and 96.9 FPS (56%) from Low to Ultra.

Moving to 2560x1440, the data shows 118.9 FPS on Low settings, 79.8 FPS on Medium, 69.6 FPS on High, and 50.7 FPS on Ultra. The gap between Low and Ultra widens to 68.2 FPS, a 57% reduction. The High preset at 1440p delivers 69.6 FPS, which is 28.5 FPS lower than the same settings at 1080p.

At 3840x2160, performance drops significantly. Low settings yield 71.1 FPS, Medium produces 49.3 FPS, High manages 41.9 FPS, and Ultra falls to 27.3 FPS. The difference between Low and Ultra at 4K is 43.8 FPS, a 62% reduction. Notably, the 4K Low preset at 71.1 FPS is nearly equivalent to the 1440p High preset at 69.6 FPS.

The settings scaling at each resolution shows a consistent pattern: Low to Medium imposes a moderate penalty, Medium to High is a smaller step, and High to Ultra is the most demanding transition. At 1080p, the jump from Medium to High costs 15.7 FPS, while High to Ultra costs 22.5 FPS. At 1440p, these steps are 10.2 FPS and 18.9 FPS respectively. At 4K, Medium to High costs 7.4 FPS, and High to Ultra costs 14.6 FPS.

Resolution Scaling

The frame rate scaling from 1080p to 4K reveals the shifting bottleneck between CPU and GPU. At Low settings, the average FPS drops from 172.5 at 1080p to 118.9 at 1440p (a 31% reduction) and then to 71.1 at 4K (a 40% reduction from 1440p). This pattern suggests the CPU is the primary limiter at 1080p Low, as the GPU has headroom to render more pixels.

At High settings, the scaling is more linear: 98.1 FPS at 1080p, 69.6 FPS at 1440p (a 29% reduction), and 41.9 FPS at 4K (a 40% reduction from 1440p). The consistent percentage drops across resolutions indicate that the GPU is becoming the dominant constraint, as the CPU's workload remains relatively constant while pixel count quadruples.

The Ultra settings show the steepest scaling curve. From 1080p (75.6 FPS) to 1440p (50.7 FPS) is a 33% reduction, and from 1440p to 4K (27.3 FPS) is a 46% reduction. This accelerating drop at higher resolutions and settings confirms the GPU's memory bandwidth and compute limits are being reached, as Rust's draw calls and shadow rendering become more expensive.

The data indicates that at 1080p, the system is balanced with the CPU and GPU both contributing to the frame rate. At 1440p, the GPU begins to dominate the performance equation. At 4K, the RX 6750 XT is the clear bottleneck, as evidenced by the 71.1 FPS on Low settings versus 172.5 FPS at 1080p Low, a 59% reduction in performance.

Settings Recommendations

For 1080p displays, the Medium preset at 113.8 FPS offers the best balance of visual quality and performance, providing a 15.7 FPS advantage over High settings. Players prioritizing smoothness over fidelity should use Low settings at 172.5 FPS, while those with 144Hz monitors will find High at 98.1 FPS suitable for competitive play.

At 1440p, the Low preset at 118.9 FPS is the only configuration that fully utilizes high-refresh-rate monitors. The High preset at 69.6 FPS provides a solid 60 FPS experience with significantly improved visuals, making it the recommended choice for most users. The Medium preset at 79.8 FPS offers a middle ground, but the 10.2 FPS difference from High may not justify the visual downgrade.

For 4K, only the Low preset at 71.1 FPS achieves playable frame rates above 60 FPS. The Medium preset at 49.3 FPS is borderline for slower-paced gameplay, while High and Ultra at 41.9 and 27.3 FPS respectively are not recommended for smooth play. The data indicates that 4K gaming with this hardware requires accepting significant visual compromises.

The optimal experience across all resolutions is the Low preset at 1440p, which delivers 118.9 FPS while providing a pixel density boost over 1080p. For users with adaptive sync displays, the High preset at 1440p (69.6 FPS) offers the best visual quality within the 60-75 FPS range, while 1080p Medium (113.8 FPS) is ideal for high-refresh-rate panels seeking a balance between sharpness and speed.