Rust

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

The AMD Ryzen 5 5500 is a six-core, 12-thread processor built on the Zen 3 architecture, using the Cezanne die. It operates with a base clock of 3.60 GHz and a boost clock of 4.20 GHz, and it fits into the AMD Socket AM4 platform. The CPU's 7 nm process node from TSMC houses 10,700 million transistors across a 180 mm² die, with a thermal design power of 65 W. It draws from a 16 MB L3 cache, with 64 KB of L1 and 512 KB of L2 per core, and it supports DDR4 memory over a dual-channel bus with 51.2 GB/s of bandwidth. The processor is unlocked, allowing manual overclocking.

In synthetic benchmarks, the Ryzen 5 5500 posts a Cinebench R23 multi-core score of 16,429 and a single-core score of 2,319. Its Geekbench results are 7,976 multi-core and 1,730 single-core. The CPU's overall average benchmark score is 19,593, placing it in the 73rd percentile among all tested CPUs. Its nearest rivals in aggregate performance are tightly clustered: the AMD Ryzen AI 5 430 scores 19,617 (just 0.1% higher), the Intel Core i5-12500 scores 19,668 (0.4% higher), the Intel Core i5-11600KF scores 19,723 (0.7% higher), and the Intel Core i7-10700F scores 19,499 (0.5% lower). This indicates the Ryzen 5 5500 sits squarely in a competitive mid-range tier, with no single rival holding a decisive edge in raw compute.

For a game like Rust, which is known for heavy simulation and entity processing, the CPU's thread count and single-thread performance are critical. The 3DMark results show a single-thread score of 836, a 2-thread score of 1,645, and a 4-thread score of 3,151, scaling up to 5,411 at max threads. The scaling from 2 to 4 threads is nearly perfect (a 91.5% increase), but the jump from 8 threads (4,593) to max threads (5,411) is only 17.8%, suggesting diminishing returns beyond eight threads. This pattern implies Rust's engine can leverage multiple cores, but the Ryzen 5 5500's six physical cores and 12 threads are sufficient to feed the GPU in most scenarios, especially at lower resolutions where the CPU's single-thread speed becomes the limiting factor.

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

The Intel Arc B390 is an integrated graphics processor based on the Xe3-LPG architecture, using the Panther Lake chip on Intel's 3 nm process node. It operates with a base clock of 300 MHz and a boost clock of 2500 MHz. Crucially, this GPU uses System Shared memory, meaning it has no dedicated VRAM; it borrows from the system's main memory, and the bandwidth is described as System Dependent. This is a fundamental constraint for gaming performance, as the GPU must compete with the CPU for memory access.

The Arc B390 has 1,536 shading units, 48 texture mapping units, 24 raster output units, and 12 ray tracing cores. Its peak pixel rate is 60.00 GPixel/s, texture rate is 120.0 GTexel/s, and FP32 compute is rated at 7.680 TFLOPS. The GPU's TDP is just 80 W, and it is integrated into the processor package, meaning it has no power connectors and its display outputs depend on the portable device it is embedded in. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The 3DMark Steel Nomad DX12 score for the Arc B390 is 1,482, which places it in the 9th percentile among all GPUs. That is a very low standing, and its nearest rivals are all older, low-end discrete GPUs: the NVIDIA GeForce GT 520MX scores 1,463 (1.3% lower), the GeForce 800M scores 1,460 (1.5% lower), the GeForce GT 625 OEM scores 1,446 (2.5% lower), and the GeForce GT 710 scores 1,443 (2.7% lower). The Arc B390 outperforms these legacy parts, but only marginally, and they represent the absolute bottom tier of graphics hardware. This explains why the measured FPS in Rust is so low across all settings and resolutions; the integrated GPU is the bottleneck in nearly every scenario.

The lack of dedicated VRAM is particularly problematic for Rust, which generates large, persistent worlds with many dynamic objects. At 1080p with Low settings, the GPU manages 76 FPS, but that drops to 43 FPS at High settings. At 4K, the same settings yield 31 FPS and 18 FPS, respectively. The system shared memory bandwidth limitation becomes more acute as resolution increases, because the GPU must move more texture and geometry data through the same memory channel that the CPU uses.

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

The measured FPS data reveals a steep resolution scaling curve for this combo. At 1080p with Low settings, the average FPS is 76. Moving to 1440p Low drops that to 53 FPS, a 30.3% reduction. At 4K Low, the average falls to 31 FPS, which is 59.2% lower than the 1080p figure. The pattern holds for High settings: 43 FPS at 1080p, 30 FPS at 1440p (30.2% drop), and 18 FPS at 4K (58.1% drop). Medium settings follow the same trend: 51 FPS at 1080p, 35 FPS at 1440p, and 21 FPS at 4K. Ultra settings are the most demanding, with 33 FPS at 1080p, 23 FPS at 1440p, and 13 FPS at 4K.

The relative consistency of the drop from 1080p to 1440p (roughly 30% across all settings) and from 1080p to 4K (roughly 58-60% across all settings) indicates that the GPU is the primary limiting component at higher resolutions. If the CPU were the bottleneck, we would expect the FPS gap between resolutions to shrink, because the CPU workload is independent of resolution. Instead, the FPS falls proportionally with the increase in pixel count, which is the classic signature of a GPU-bound scenario.

However, the absolute FPS numbers are low even at 1080p Low (76 FPS), which suggests that the integrated GPU is struggling even at the lowest workload. The Arc B390's 9th percentile ranking among all GPUs means it is not just underpowered for high resolutions; it is underpowered for any modern gaming at playable frame rates. The 4K Ultra result of 13 FPS is essentially a slideshow, and even 1080p Ultra at 33 FPS is below the threshold for smooth, responsive gameplay. The data shows that this combo is only viable for low-to-medium settings at 1080p, and even then, the frame times are likely to be inconsistent.

How This Combo Ranks — use comboRankInGame vs other tested combos

In the database of tested hardware combinations for Rust, this pairing of the AMD Ryzen 5 5500 with the Intel Arc B390 ranks 2,601 out of 2,953 total combos. That places it in the bottom 11.9% of all tested configurations, meaning roughly 88% of other CPU-GPU pairings deliver better performance in this game. Given the GPU's lowly 9th percentile standing and the CPU's mid-pack 73rd percentile, this ranking is unsurprising; the graphics solution drags the entire combo down.

The CPU is not the primary culprit here. The Ryzen 5 5500's nearest rivals in synthetic benchmarks all score within 0.7% of it, and the CPU's 73rd percentile ranking indicates it is a capable mid-range part. In a game like Rust, which benefits from strong single-thread performance and multiple cores, the CPU would not be the limiting factor in most reasonable GPU pairings. But the Arc B390's performance profile is so weak that it cannot translate the CPU's compute potential into playable frame rates.

The gap between the combo's rank and the CPU's percentile highlights a severe imbalance. If the GPU were swapped for a discrete part even modestly above the 9th percentile, the combo's rank in Rust would likely improve substantially. As it stands, the data indicates that this combo is only suitable for the lowest settings at 1080p, and even then, the experience would be marginal. The measured FPS at 1080p Low (76 FPS) is the only configuration that approaches a playable standard, and that is the absolute floor of the settings and resolution spectrum.

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

Based on the measured FPS data, the only viable configuration for a reasonable gaming experience is 1080p with Low settings, which delivers an average of 76 FPS. This is the only measured row that exceeds the 60 FPS threshold commonly associated with smooth gameplay. At 1080p Medium, the average drops to 51 FPS, which is still playable but with more noticeable stutter, and the minimum FPS is recorded at 44. At 1080p High, the average falls to 43 FPS, which is borderline for a fast-paced survival game where quick reactions matter. At 1080p Ultra, the average is 33 FPS, which is too low for consistent responsiveness.

At 1440p, the situation worsens significantly. The best 1440p result is Low settings at 53 FPS, which is below the 60 FPS target. Medium at 1440p yields 35 FPS average with a minimum of 30, and High drops to 30 FPS. Ultra at 1440p is 23 FPS. At 4K, no setting achieves a playable frame rate: Low yields 31 FPS, Medium 21 FPS, High 18 FPS, and Ultra 13 FPS. The 4K results are uniformly poor, and even the minimum FPS data for Medium at 4K (18 FPS) indicates severe frame pacing issues.

The recommendation is clear: run Rust at 1080p with Low settings. This provides the highest average FPS (76) and is the only measured row that offers headroom above 60 FPS. If the player insists on Medium settings, 1080p Medium at 51 FPS is the next best option, but it carries a 32.9% performance penalty compared to Low. Higher resolutions should be avoided entirely, as the integrated GPU does not have the bandwidth or compute capacity to maintain playable frame rates. The data shows that the preset selection has a more significant impact on FPS than resolution scaling; moving from Low to Ultra at any resolution costs roughly 50-58% of the average FPS, which is a trade-off that is not worth it for this hardware.

FAQ

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

A: The measured data shows that 1080p with Low settings is the only configuration that averages above 60 FPS, at 76 FPS. All other settings at 1080p, and all settings at 1440p and 4K, fall below that threshold.

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

A: The Ryzen 5 5500 has an average benchmark score of 19,593, which is within 0.7% of its nearest rivals: the AMD Ryzen AI 5 430 (19,617, 0.1% higher), Intel Core i5-12500 (19,668, 0.4% higher), and Intel Core i5-11600KF (19,723, 0.7% higher). The Intel Core i7-10700F is 0.5% lower at 19,499.

Q: Why is the frame rate so low even at 1080p?

A: The Intel Arc B390 is an integrated GPU that ranks in the 9th percentile among all GPUs, with a 3DMark Steel Nomad score of 1,482. Its nearest rivals are all legacy low-end discrete GPUs like the NVIDIA GeForce GT 710, which scores 2.7% lower. The GPU's performance is the limiting factor.

Q: What is the frame rate drop from 1080p to 4K at Medium settings?

A: At Medium settings, the average FPS drops from 51 at 1080p to 35 at 1440p (a 31.4% reduction) and then to 21 at 4K (a 58.8% reduction from 1080p). This consistent drop indicates the GPU is the bottleneck.

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

A: This combination of the AMD Ryzen 5 5500 and Intel Arc B390 ranks 2,601 out of 2,953 tested combos, placing it in the bottom 11.9% of all configurations.

Q: Is the CPU or the GPU more responsible for the poor performance?

A: The GPU is the primary bottleneck. The CPU ranks in the 73rd percentile among all CPUs, while the GPU ranks in the 9th percentile among all GPUs. The FPS scales heavily with resolution, which is a GPU-bound behavior, and the CPU's synthetic performance is competitive with its peers.