Rust

The AMD Ryzen 9 9900X3D paired with the AMD Radeon RX 6700 XT delivers a mid-range 1080p and 1440p experience in Rust, with 4K Ultra proving too demanding for sustained playable frame rates. Benchmark data shows this combination ranks in the 50th percentile of tested configurations, with the CPU’s high core count and the GPU’s 12 GB VRAM shaping performance across different quality presets.

FAQ

Q: What is the average frame rate at 1080p with Medium settings?

A: The measured average is 111 FPS, with a minimum of 94 FPS and a maximum of 127 FPS.

Q: How does the CPU compare to its nearest rival in synthetic benchmarks?

A: The Ryzen 9 9900X3D has an average benchmark score of 54762, which is 0.6% lower than the Intel Core Ultra 5 245KF (55093) and 1.3% higher than the Intel Core Ultra 5 245K (54053).

Q: What is the GPU’s memory configuration?

A: The RX 6700 XT features 12 GB of GDDR6 memory on a 192-bit bus, providing 384.0 GB/s of bandwidth.

Q: What is the best 4K setting for this combo?

A: Low settings at 3840x2160 achieve an average of 67 FPS, which is the only 4K preset that clears 60 FPS. Ultra at 4K drops to 29 FPS average.

Q: How many cores and threads does the CPU have?

A: The Ryzen 9 9900X3D has 12 cores and 24 threads, with a base clock of 4.40 GHz and a boost clock of 5.50 GHz.

Q: What is the combo’s rank among all tested configurations?

A: It ranks 1484 out of 2953 total combos tested for Rust, placing it just above the median.

GPU Role

The Radeon RX 6700 XT is built on the RDNA 2.0 architecture using the Navi 22 chip on a 7 nm process. Its base clock is 2321 MHz with a boost clock of 2581 MHz, while the memory operates at 2000 MHz (16 Gbps effective). The card has 2560 shading units, 160 TMUs, and 64 ROPs, with 40 ray tracing cores. These specifications translate to a pixel rate of 165.2 GPixel/s and a texture rate of 413.0 GTexel/s.

For Rust, the 12 GB VRAM capacity is a significant factor. At 1080p, the card has ample headroom, as evidenced by the 165 FPS average on Low settings. The memory bandwidth of 384.0 GB/s helps maintain consistent frame delivery even when the game loads large world assets and player structures. At 1440p, the GPU still performs well, with a 114 FPS average on Low settings, but the gap between Low and Ultra widens considerably, suggesting the GPU is becoming the limiting factor at higher resolutions.

The GPU’s FP32 compute of 13.21 TFLOPS and FP16 of 26.43 TFLOPS (2:1) indicate solid raw throughput for a mid-range card. However, the 4K results reveal its limitations: at 3840x2160, even Medium settings only achieve 45 FPS average, and Ultra falls to 29 FPS. The card sits in the 72nd percentile of all GPUs, with an average benchmark score of 27425, placing it alongside the NVIDIA GeForce RTX 4070 Mobile (27435, 0% delta) and slightly behind the RTX 3090 (27565, -0.5% delta). This positioning confirms the RX 6700 XT is a capable 1080p and entry-level 1440p card, but not a 4K performer for demanding titles like Rust.

How This Combo Ranks

The combination of the Ryzen 9 9900X3D and RX 6700 XT ranks 1484 out of 2953 tested combos for Rust, placing it in the 50th percentile. This mid-pack ranking reflects a balance between a high-end CPU and a mid-range GPU. The CPU’s percentile versus all CPUs is 91, while the GPU’s percentile versus all GPUs is 72, indicating the processor is significantly stronger relative to its peers than the graphics card.

This ranking suggests that in Rust, the GPU is the primary bottleneck for most settings, especially at higher resolutions. The CPU has enough headroom to feed the GPU efficiently, but the RX 6700 XT’s 13.21 TFLOPS FP32 performance caps the overall frame output. For context, the GPU’s average benchmark score of 27425 is nearly identical to the RTX 4070 Mobile (27435), which is a laptop part, underscoring that this desktop card performs at a level comparable to high-end mobile solutions.

The combo’s position near the median of all configurations means users can expect typical performance for this hardware tier. It is not a top-tier pairing for Rust, but it is far from the bottom, and the data indicates that the 12-core CPU is not holding back the GPU in most scenarios.

Measured FPS Breakdown

At 1920x1080, the RX 6700 XT delivers strong results across all presets. Low settings produce an average of 165 FPS, which is excellent for competitive play. Medium settings yield 111 FPS average with a minimum of 94 and maximum of 127 FPS. High settings drop to 93 FPS average, while Ultra settings still maintain a playable 71 FPS average.

Stepping up to 2560x1440, the performance scales down predictably. Low settings achieve 114 FPS average, which remains smooth. Medium settings produce 76 FPS average (minimum 65, maximum 88 FPS). High settings fall to 64 FPS average, and Ultra settings drop to 49 FPS average, which starts to feel less fluid for a fast-paced survival game.

At 3840x2160, the GPU struggles to maintain high frame rates. Low settings produce 67 FPS average, which is the only 4K preset above 60 FPS. Medium settings yield 45 FPS average (minimum 38, maximum 52 FPS). High settings drop to 38 FPS average, and Ultra settings bottom out at 29 FPS average. These 4K numbers indicate that the RX 6700 XT is not well-suited for 4K gaming in Rust, even with a powerful CPU paired alongside it.

The frame time consistency, where available, shows the Medium preset has a narrower range between minimum and maximum FPS at each resolution, suggesting more stable performance than the extreme presets.

CPU Role

The Ryzen 9 9900X3D is a 12-core, 24-thread processor based on the Zen 5 architecture (Granite Ridge codename), manufactured on a 4 nm process by TSMC. It has a base clock of 4.40 GHz and a boost clock of 5.50 GHz, with a TDP of 120 W. The L3 cache is 128 MB, which is substantial for gaming workloads. The CPU supports DDR5 memory with dual-channel configuration and has a memory bandwidth of 89.6 GB/s.

In synthetic benchmarks, the CPU shows strong multi-threaded performance. It scores 47737 in Cinebench R23 multi-core and 6739 in single-core. The PassMark multi-thread score is 56154, and the single-thread score is 4646. The 3DMark 16-thread score is 12490, while the max-thread score reaches 13795. These numbers place the CPU in the 91st percentile of all CPUs, with an average benchmark score of 54762.

For Rust, which can be CPU-intensive due to its large worlds and many entities, this processor provides ample headroom. The 12 cores and 24 threads ensure that background simulation and physics calculations do not bottleneck the GPU. However, the benchmark data shows that the CPU is not the limiting factor in this combo. At 1080p Low, where the GPU is least stressed, the CPU allows the RX 6700 XT to reach 165 FPS average, indicating it is not holding back performance. The nearest rivals, the Intel Core Ultra 5 245KF (55093) and Intel Core Ultra 5 245K (54053), show that the Ryzen 9 9900X3D is competitively positioned, with deltas of -0.6% and +1.3% respectively.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and desired frame rate. At 1080p, Medium settings provide the best balance, delivering 111 FPS average with a minimum of 94 FPS, which ensures smooth gameplay even in complex scenes. High settings at 93 FPS average are also viable, but the drop from Medium is noticeable. For players seeking maximum visual fidelity at 1080p, Ultra at 71 FPS average is still playable, though it sacrifices the headroom needed for large-scale raids or explosions.

At 1440p, Medium settings are again the sweet spot, offering 76 FPS average with a minimum of 65 FPS. This preset maintains fluidity without pushing the GPU to its limits. High settings at 64 FPS average are borderline, and Ultra at 49 FPS average is not recommended for competitive play. Low settings at 114 FPS average are excellent for players prioritizing frame rate over visuals.

At 4K, the recommendation shifts significantly. Low settings at 67 FPS average are the only viable option for a smooth experience. Medium settings at 45 FPS average are playable but may feel stuttery in action-heavy moments. High and Ultra settings at 38 FPS and 29 FPS average respectively are not recommended, as they fall below the threshold for responsive gameplay in a survival shooter.

For the best overall experience, Medium settings at 1080p or 1440p offer the highest frame rates with acceptable visual quality. The data shows that the delta between Medium and Low is smaller than between Medium and High, indicating diminishing returns at higher presets.

Resolution Scaling

The FPS drop from 1080p to 4K is significant and reveals the GPU as the limiting component. At Medium settings, the average FPS drops from 111 at 1080p to 76 at 1440p (a 31.5% decrease) and then to 45 at 4K (a 40.8% decrease from 1440p). This steep decline indicates that the RX 6700 XT’s 13.21 TFLOPS FP32 performance and 384.0 GB/s memory bandwidth are insufficient to maintain frame rates at higher pixel counts.

At Low settings, the scaling is more gradual: 165 FPS at 1080p drops to 114 FPS at 1440p (30.9% decrease) and then to 67 FPS at 4K (41.2% decrease from 1440p). This pattern shows that even at the lowest settings, the GPU is still the bottleneck, as the CPU has ample headroom to process the game’s simulation.

The Ultra preset shows the most severe scaling: 71 FPS at 1080p drops to 49 FPS at 1440p (31.0% decrease) and then to 29 FPS at 4K (40.8% decrease from 1440p). This consistency in percentage drops across all presets suggests that the GPU’s fill rate and memory bandwidth are the primary constraints, rather than CPU limitations or driver overhead.

The data indicates that this combo is best suited for 1080p and 1440p gaming, with 4K requiring significant compromises in visual quality. The 12 GB VRAM is sufficient for 1080p and 1440p textures, but at 4K, the memory bandwidth of 384.0 GB/s becomes a limiting factor, preventing the GPU from efficiently handling the larger frame buffer and higher-resolution textures. The Ryzen 9 9900X3D’s 89.6 GB/s memory bandwidth is not a constraint here, as the system memory is not the bottleneck in this scenario.