Rust

The AMD Ryzen 7 5700 paired with the Intel Arc B390 presents a highly unbalanced configuration for Rust, where a capable eight-core processor is hamstrung by an integrated graphics solution that ranks in the bottom percentile. The data shows a system that struggles to maintain playable frame rates at any resolution above 1080p Low, with the GPU acting as the definitive bottleneck throughout all tested settings.

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

The AMD Ryzen 7 5700 brings substantial processing power to this pairing. This is an 8-core, 16-thread processor based on the Zen 3 architecture, built on TSMC's 7 nm process. It runs at a base clock of 3.70 GHz and can boost up to 4.60 GHz, with a 65 W TDP that keeps it efficient for a desktop socket AM4 part. The chip features a 16 MB L3 cache, with 512 KB of L2 and 64 KB of L1 per core, and supports dual-channel DDR4 memory with a bandwidth of 51.2 GB/s.

In synthetic benchmarks, the Ryzen 7 5700 demonstrates strong multi-threaded performance. It scores 20,655 in Cinebench R23 multi-core and 2,916 in single-core, while Geekbench results show 9,959 multi-core and 1,907 single-core. The PassMark multi-thread score is 24,303, and the processor achieves an average benchmark score of 25,517, placing it in the 78th percentile of all CPUs. The nearest rivals are tightly clustered: the Intel Xeon D-2752TER scores 25,530 (-0.1% delta), the AMD Ryzen 5 7640U scores 25,485 (+0.1%), the AMD Ryzen 5 6600H scores 25,550 (-0.1%), and the AMD Ryzen 7 5825U scores 25,446 (+0.3%). This indicates the 5700 is squarely in a competitive mid-range desktop/mobile performance band.

For a game like Rust, which is known to be heavily CPU-dependent due to its large persistent world and complex entity interactions, this processor has ample headroom. The 3DMark results reinforce this: 6,628 in the 16-thread test, 5,585 in the 8-thread test, and 3,382 in the 4-thread test. The single-thread score of 901 and the 2-thread score of 1,762 show that even lightly-threaded workloads are handled competently. In practical terms, the CPU is not what is holding this combo back. The bottleneck lies entirely elsewhere, as the measured FPS data will show, where even at Low settings the system fails to approach the frame rates that this processor could enable with a discrete GPU.

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

The Intel Arc B390 is the clear limiting factor in this configuration. This is an integrated graphics processor (IGP) based on the Xe3-LPG architecture, built on Intel's 3 nm process with a Panther Lake chip. It operates with a base clock of 300 MHz and a boost clock of 2500 MHz. Critically, its memory configuration is "System Shared," meaning it has no dedicated VRAM and relies on system memory, with bandwidth listed as "System Dependent." This is a fundamental constraint for gaming.

The GPU's specifications are modest: 1,536 shading units, 48 texture mapping units (TMUs), and 24 raster operation units (ROPs). It offers 12 ray tracing cores and delivers a pixel rate of 60.00 GPixel/s with a texture rate of 120.0 GTexel/s. The FP32 performance is 7.680 TFLOPS. The GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so feature support is not the issue. Its TDP is 80 W, and it occupies a single slot as an IGP with no power connectors required.

In the only benchmark available, the 3DMark Steel Nomad DX12 test, the Arc B390 scores 1,482 points. This places it in the 9th percentile of all GPUs, which is exceptionally low. The nearest rivals are all older, low-end discrete parts: the NVIDIA GeForce GT 520MX scores 1,463 (+1.3%), the NVIDIA GeForce 800M scores 1,460 (+1.5%), the NVIDIA GeForce GT 625 OEM scores 1,446 (+2.5%), and the NVIDIA GeForce GT 710 scores 1,443 (+2.7%). This data confirms that the Arc B390 performs at the level of entry-level graphics cards from over a decade ago. For Rust, which demands consistent geometry processing and texture bandwidth, this IGP simply cannot deliver. The shared memory architecture and low ROP count mean that even moderate graphical loads will cause severe performance degradation.

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

The measured FPS data clearly illustrates the GPU bottleneck as resolution increases. At 1920x1080 with Low settings, the combo achieves 76 FPS average, which is the only playable result in the entire dataset. Moving to Medium at 1080p drops the average to 51 FPS, with a minimum of 44 and maximum of 59. High settings at 1080p yields 43 FPS, while Ultra drops to 33 FPS. This scaling from Low to Ultra at 1080p shows a 43 FPS swing (from 76 to 33 FPS), indicating that the GPU is being saturated by increased graphical demands.

At 2560x1440, the performance falls off a cliff. Low settings produce 53 FPS average, which is a 30% reduction from the 1080p Low result. Medium at 1440p drops to 35 FPS (min 30, max 41), High drops to 30 FPS, and Ultra falls to 23 FPS. The delta between 1080p and 1440p at Low settings is 23 FPS, and at High settings it is 13 FPS. This disproportionate drop—where the lower settings see a larger absolute FPS loss—indicates that the GPU is running out of raw throughput and memory bandwidth as pixel count increases.

At 3840x2160, the system becomes nearly unusable. Low settings yield only 31 FPS average, Medium drops to 21 FPS (min 18, max 24), High falls to 18 FPS, and Ultra bottoms out at 13 FPS. The scaling from 1080p Low to 4K Low is a 45 FPS drop (from 76 to 31 FPS), which is a 59% reduction. This steep decline is characteristic of a GPU that is severely underpowered for the resolution. The CPU is not the limiting factor here because if it were, the FPS would remain relatively flat across resolutions. Instead, the data shows that every increase in pixel count directly taxes the Arc B390, confirming that the IGP is the sole performance constraint.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of AMD Ryzen 7 5700 and Intel Arc B390 ranks 2601st out of 2953 tested combos in Rust. This places it in the bottom 12% of all configurations that have been benchmarked for this game. The ranking is a direct reflection of the GPU's limitations; the CPU's 78th percentile standing is completely negated by the GPU's 9th percentile performance.

The data indicates that this combo sits below the vast majority of tested systems, likely including many older or lower-spec CPUs paired with even modest discrete GPUs. The rank of 2601 means there are 352 tested combos that perform worse, but this is little consolation given that the vast majority of systems—2,600 of them—deliver better results. For a game like Rust, where survival depends on responsiveness and smooth camera movement, being in the bottom 12% is a severe handicap.

The discrepancy between the CPU's strong benchmark position and the combo's poor game ranking highlights how critical GPU selection is for this title. The Ryzen 7 5700 has the processing power to drive high frame rates, but the Arc B390 cannot translate that potential into playable output. In the context of the database, this combo represents a cautionary example of pairing a modern mid-range CPU with an integrated GPU, resulting in a system that is fundamentally unsuited for the game's demands.

FAQ

Q: Is this combo capable of running Rust at a playable frame rate?

A: The data shows that only at 1920x1080 with Low settings does the combo achieve a 76 FPS average. At Medium settings, the average drops to 51 FPS, and at 4K Low it falls to 31 FPS. This indicates that playable performance is limited to 1080p Low or possibly Medium, with any higher settings or resolutions resulting in sub-30 FPS averages.

Q: How does the Intel Arc B390 compare to its nearest rivals in GPU benchmarks?

A: The Arc B390 scores 1,482 in the 3DMark Steel Nomad DX12 test. Its nearest rivals are the NVIDIA GeForce GT 520MX at 1,463 (+1.3%), the NVIDIA GeForce 800M at 1,460 (+1.5%), the NVIDIA GeForce GT 625 OEM at 1,446 (+2.5%), and the NVIDIA GeForce GT 710 at 1,443 (+2.7%). It is just barely ahead of these older, low-end parts.

Q: What is the CPU's benchmark standing relative to other processors?

A: The AMD Ryzen 7 5700 achieves an average benchmark score of 25,517, placing it in the 78th percentile of all CPUs. Its closest rival is the Intel Xeon D-2752TER at 25,530 (-0.1% delta), and it slightly edges out the AMD Ryzen 5 7640U at 25,485 (+0.1% delta).

Q: How does performance scale from 1080p to 4K at Low settings?

A: At 1920x1080 Low, the combo delivers 76 FPS average. At 2560x1440 Low, it drops to 53 FPS. At 3840x2160 Low, it falls to 31 FPS. This represents a 45 FPS drop from 1080p to 4K, which is a 59% reduction in performance.

Q: What does the combo's rank of 2601 out of 2953 indicate?

A: This rank places the combo in the bottom 12% of all tested configurations for Rust. It means there are 352 combos that perform worse, but 2,600 that perform better, making this a poor-performing setup overall.

Q: Does the CPU or GPU have a larger impact on the measured FPS?

A: The data strongly indicates the GPU is the limiting factor. The CPU is in the 78th percentile, while the GPU is in the 9th percentile. The FPS drops significantly as resolution increases, which is a classic sign of a GPU bottleneck, whereas a CPU bottleneck would show more consistent FPS across resolutions.

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

The following data represents the measured average FPS for the AMD Ryzen 7 5700 + Intel Arc B390 combo in Rust across all tested resolutions and settings. Minimum and maximum FPS are included where available.

At 1920x1080:

• Low settings: 76 FPS average.
• Medium settings: 51 FPS average, with a minimum of 44 FPS and a maximum of 59 FPS.
• High settings: 43 FPS average.
• Ultra settings: 33 FPS average.

At 2560x1440:

• Low settings: 53 FPS average.
• Medium settings: 35 FPS average, with a minimum of 30 FPS and a maximum of 41 FPS.
• High settings: 30 FPS average.
• Ultra settings: 23 FPS average.

At 3840x2160:

• Low settings: 31 FPS average.
• Medium settings: 21 FPS average, with a minimum of 18 FPS and a maximum of 24 FPS.
• High settings: 18 FPS average.
• Ultra settings: 13 FPS average.

The best result in the entire dataset is 76 FPS at 1080p Low, which is the only setting that exceeds 60 FPS. The worst result is 13 FPS at 4K Ultra. The spread from best to worst is 63 FPS. At 1080p, the average across all settings is 50.75 FPS. At 1440p, the average drops to 35.25 FPS. At 4K, the average is 20.75 FPS. This data confirms that the combo is only viable for low-resolution, low-detail gaming, and even then, the 76 FPS at 1080p Low is the sole bright spot in an otherwise poor performance profile.