Rust

The AMD Ryzen 5 3600 and AMD Radeon RX 7900 XT pairing in Rust presents a study in contrasts: a last-gen six-core CPU from 2019 paired with a flagship RDNA 3 GPU. The measured frame rates show that this combination lands in the 70th percentile of all tested combos, ranking 511th out of 1,717 systems. While the GPU clearly dominates the visual workload, the CPU’s Zen 2 architecture and 12 threads create a distinct ceiling in Rust’s simulation-heavy environments, particularly at lower resolutions where the processor becomes the primary bottleneck.

FAQ

Q: How does this combo rank among all tested hardware combinations in Rust?

A: The combination ranks 511th out of 1,717 total tested combos, placing it in the upper tier of systems. The GPU sits at the 82nd percentile among all GPUs, while the CPU rests at the 76th percentile among all CPUs, indicating the graphics card carries more relative weight in this pairing.

Q: What is the performance difference between 1080p and 1440p at High settings?

A: At 1080p High, the system averages 122.5 FPS, while at 1440p High it drops to 95.3 FPS, a reduction of 27.2 frames per second. This 22% decrease suggests the GPU is still capable of pushing higher framerates, but the CPU’s single-thread performance (3DMark single-thread score of 696) begins to limit scaling.

Q: How does the CPU compare to its closest rivals in synthetic benchmarks?

A: The Ryzen 5 3600 scores an average benchmark of 18,129, which is within 0.3% of the AMD EPYC 9274F and 0.2% of the AMD Ryzen 5 7535HS. It trails the Intel Core i5-11400 (18,150) by a negligible 0.1%, showing that this older processor still holds its own in general-purpose compute.

Q: What is the FPS difference between Low and Ultra settings at 4K?

A: At 3840x2160, Low settings yield 102 FPS, Medium produces 63.6 FPS, High drops to 58.5 FPS, and Ultra bottoms out at 42.5 FPS. The gap from Low to Ultra is 59.5 FPS, a 58% performance loss, which highlights the extreme load that Ultra presets place on the GPU’s 20 GB frame buffer and 800.0 GB/s bandwidth.

Q: Does the CPU’s multi-threaded performance influence Rust’s frame rates?

A: Yes, but indirectly. The CPU’s Cinebench R23 multi-core score of 15,045 and 12 threads handle Rust’s background simulation tasks, but the game’s frame pacing relies more on single-core speed. The 3DMark 2-thread score of 1,361 suggests that at 1080p Low (150.3 FPS), the CPU is processing frames near its limit, whereas at 4K Ultra (42.5 FPS), the GPU is clearly the limiting factor.

Q: What is the GPU’s synthetic benchmark standing relative to its nearest rivals?

A: The RX 7900 XT averages 38,358 in benchmark scores, which is statistically tied with the NVIDIA GeForce RTX 5080 Mobile (38,349, 0% delta). It edges out the NVIDIA CMP 70HX (38,225) by 0.3% and the NVIDIA GeForce RTX 4080 Mobile (38,135) by 0.6%, showing it sits in a tightly contested performance band.

CPU Role

The AMD Ryzen 5 3600 provides six cores and twelve threads based on the Zen 2 architecture, fabricated on TSMC’s 7 nm process. Its base clock of 3.60 GHz can boost up to 4.20 GHz, and it shares a 32 MB L3 cache across all cores. In Rust, a game that simulates persistent world events, the CPU’s 12 threads handle entity updates and network synchronization, but the game’s frame rate is more sensitive to single-thread performance.

The synthetic data supports this view: the CPU scores 696 in 3DMark single-thread and 2,124 in Cinebench R23 single-core, which are modest figures for modern standards. At 1080p Low, the system hits 150.3 FPS, but this appears to be near the CPU’s ceiling—the 3DMark 2-thread score of 1,361 and 4-thread score of 2,579 indicate that scaling beyond two to four active threads yields diminishing returns for Rust’s core game loop.

In multi-threaded workloads, the CPU fares better, with Cinebench R23 multi-core reaching 15,045 and PassMark multi-thread at 17,700. However, these scores don’t translate to proportional FPS gains in Rust because the game’s primary thread often waits on memory latency. The CPU’s dual-channel DDR4 support with 51.2 GB/s bandwidth is sufficient, but the 3,800 million transistor die on a 74 mm² chip limits its ability to feed the RX 7900 XT at high frame rates. When resolution increases to 4K, the CPU’s relative load decreases, and the bottleneck shifts to the GPU, as evidenced by the 42.5 FPS at Ultra versus 102 FPS at Low—a 59.5 FPS swing driven almost entirely by graphics load.

GPU Role

The AMD Radeon RX 7900 XT is a flagship RDNA 3.0 part built on the Navi 31 chip with 57,700 million transistors on a 529 mm² die. It packs 5,376 shading units, 336 texture mapping units, and 192 raster operation units, along with 84 ray tracing cores. Its 20 GB of GDDR6 memory on a 320-bit bus delivers 800.0 GB/s of bandwidth, which is crucial for Rust’s large texture sets and draw distances.

The GPU’s boost clock of 2394 MHz and game clock of 2025 MHz allow it to process geometry efficiently, but the measured FPS reveals how settings scale. At 1080p, moving from Low to Ultra drops the average from 150.3 to 102.9 FPS, a 47.4 FPS reduction. At 1440p, the same settings swing from 132.9 to 70 FPS, a 62.9 FPS drop. At 4K, the range expands further: Low hits 102 FPS, but Ultra falls to 42.5 FPS, a 59.5 FPS spread. This pattern indicates that the GPU’s compute resources (51.48 TFLOPS FP32) are ample for lower presets, but Ultra settings in Rust introduce effects that strain even this high-end card.

The GPU’s 82nd percentile ranking among all GPUs, with an average benchmark score of 38,358, places it slightly ahead of the RTX 4080 Mobile (38,135) and RTX 5080 Mobile (38,349). Despite this strong standing, the 4K Ultra result of 42.5 FPS shows that Rust’s Ultra preset is exceptionally demanding, likely due to dynamic shadows and ambient occlusion that leverage the GPU’s 192 ROPs. The 20 GB VRAM is never a limiting factor, as even at 4K, the memory bus width of 320 bits and bandwidth of 800.0 GB/s handle the data flow without apparent stutter.

How This Combo Ranks

Among the 1,717 tested system combinations, this pairing ranks 511th, placing it in the top 30% of all configurations. The rank reflects a balance: the GPU’s high percentile (82nd) pulls the combo upward, while the CPU’s lower percentile (76th) holds it back from the top tier. The 4K High result of 58.5 FPS is playable, but it falls short of the 60 FPS threshold that many users target, indicating that the CPU’s single-thread capabilities (3DMark 2-thread score of 1,361) prevent the GPU from fully stretching its legs at lower resolutions.

At 1080p, the combo achieves 122.5 FPS on High and 150.3 FPS on Low, which are strong numbers for a survival game with persistent worlds. However, the jump to 1440p High (95.3 FPS) shows a 27.2 FPS loss that is larger than what a pure GPU-bound scenario would suggest, implying the CPU’s frame pacing is adding latency. The combo’s rank is respectable but not exceptional; systems with newer CPUs and similar GPUs would likely score higher, as the CPU’s 0.1% delta from the Intel Core i5-11400 in average benchmark score (18,129 vs 18,150) shows it is competitive but not leading.

The data indicates that this combo is best suited for 1440p gaming, where the 95.3 FPS High result balances visual quality and responsiveness. At 4K, the 58.5 FPS High average is borderline, and the 42.5 FPS Ultra result is below the playable threshold for most users. The rank of 511 out of 1,717 suggests that while the GPU is a top-tier part, the CPU’s age (released in 2019) creates a ceiling that prevents this system from entering the top 400.

Resolution Scaling

Analyzing the FPS progression from 1080p to 4K reveals how the bottleneck shifts between components. At 1080p Low, the system produces 150.3 FPS, which is likely CPU-limited given the CPU’s single-thread score of 696. Moving to 1440p Low drops performance to 132.9 FPS, a 17.4 FPS decrease, and 4K Low falls to 102 FPS, another 30.9 FPS drop. This scaling suggests that the GPU is still capable at Low settings, but the CPU’s frame generation rate caps the maximum output.

At High settings, the scaling is steeper: 122.5 FPS at 1080p, 95.3 FPS at 1440p, and 58.5 FPS at 4K. The 64 FPS difference between 1080p and 4K High represents a 52% reduction, which is consistent with a GPU-bound workload where rendering resolution directly impacts pixel throughput. The 4K High result of 58.5 FPS is only 16.5 FPS lower than the 1440p High result, indicating that the GPU’s 800.0 GB/s bandwidth and 20 GB VRAM are being taxed heavily.

Ultra settings show the most dramatic scaling: 102.9 FPS at 1080p, 70 FPS at 1440p, and 42.5 FPS at 4K. The 1080p to 4K drop of 60.4 FPS (59%) is the largest in the dataset, suggesting that Ultra presets in Rust introduce effects that scale non-linearly with resolution, such as high-resolution shadows and texture filtering. The limiting component at 4K Ultra is clearly the GPU, as the CPU’s load remains relatively constant across resolutions. At 1080p Low, however, the CPU becomes the bottleneck, capping FPS at 150.3 despite the GPU’s ability to render faster—the 3DMark 2-thread score of 1,361 indicates that Rust’s main thread can only process so many frames per second, regardless of the GPU’s 51.48 TFLOPS compute power.