Rust

# FAQ

Q: What is the combo rank of the AMD Ryzen 7 5700G paired with the Intel Arc B390 in Rust?

A: This combination ranks 2601st out of 2953 tested combos in Rust, placing it in the lower tier of all measured configurations.

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

A: The Arc B390 scores 1482 in 3DMark Steel Nomad DX12. This puts it 1.3% ahead of the NVIDIA GeForce GT 520MX (score 1463) and 1.5% ahead of the GeForce 800M (score 1460). It also edges out the GT 625 OEM by 2.5% and the GT 710 by 2.7%.

Q: What is the highest average FPS this combo achieves at 1080p?

A: At 1920x1080 with Low settings, the combo reaches an average of 76 FPS. This is the maximum average FPS recorded across all tested resolution and settings combinations.

Q: What is the lowest average FPS recorded for this combo?

A: At 3840x2160 with Ultra settings, the average FPS drops to 13, the lowest figure in the measured data.

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

A: The Ryzen 7 5700G has an average benchmark score of 27051, which is 0.2% behind the Intel Core i9-9900K (score 27097). It is 0.4% ahead of the AMD Ryzen AI 7 445 (score 26936) and 0.6% ahead of the Intel Core i7-1370P (score 26900).

Q: Does the GPU have dedicated VRAM?

A: No, the Intel Arc B390 uses System Shared memory for both size and type, with bandwidth that is System Dependent. This means it relies on the system's main memory rather than dedicated graphics memory.

# GPU Role

The Intel Arc B390 is an integrated graphics processor based on the Panther Lake chip with Xe3-LPG architecture, built on a 3 nm process. It operates with a base clock of 300 MHz and a boost clock of 2500 MHz. The GPU contains 1536 shading units, 48 texture mapping units, 24 raster operation units, and 12 ray tracing cores. Its pixel rate is 60.00 GPixel/s, texture rate is 120.0 GTexel/s, and it delivers 7.680 TFLOPS of FP32 performance and 15.36 TFLOPS of FP16 performance with a 2:1 ratio.

The GPU's memory configuration is entirely System Shared, meaning there is no dedicated VRAM. Memory type, bus width, and bandwidth are all system-dependent. This is a critical factor in Rust, a game that can be demanding on memory bandwidth. The lack of dedicated VRAM means the GPU must contend with the CPU for system memory access, which can become a bottleneck, particularly at higher resolutions and settings.

In terms of synthetic performance, the Arc B390 scores 1482 in 3DMark Steel Nomad DX12. This places it in the 9th percentile of all GPUs, indicating very low overall graphics performance. Its nearest rivals are all older, low-end NVIDIA parts: the GeForce GT 520MX, GeForce 800M, GT 625 OEM, and GT 710, with score differences ranging from 1.3% to 2.7%.

The measured FPS data shows a clear correlation between GPU load and performance. At 1920x1080 with Low settings, the combo averages 76 FPS. Dropping to Medium reduces this to 51 FPS, High to 43 FPS, and Ultra to 33 FPS. This scaling suggests the GPU is the limiting factor when settings increase. The jump from Low to Medium is particularly steep, a 25 FPS drop, which indicates the Arc B390 struggles with the additional shading and texture work that Medium settings introduce.

At 2560x1440, the same pattern emerges: Low averages 53 FPS, Medium 35 FPS, High 30 FPS, and Ultra 23 FPS. The gap between Low and Medium is 18 FPS, again showing a significant performance penalty for increased visual fidelity. At 3840x2160, the GPU is clearly overburdened. Low averages 31 FPS, Medium 21 FPS, High 18 FPS, and Ultra 13 FPS. The 4K results are uniformly poor, with even Low settings failing to reach playable framerates.

The GPU's 9th percentile ranking and its proximity to decade-old discrete GPUs like the GT 710 highlight its limited capabilities. Rust's open-world survival gameplay, with its complex lighting and large draw distances, demands more from the graphics processor than this integrated solution can provide. The data indicates that the Arc B390 is best suited for low-resolution, low-settings play, where it can achieve playable framerates.

# CPU Role

The AMD Ryzen 7 5700G is an 8-core, 16-thread processor from the 5000 series, based on the Zen 3 architecture with the Cezanne codename. It has a base clock of 3.80 GHz and a boost clock of 4.60 GHz, with a TDP of 65W. The CPU features a 7 nm process node, 16 MB of L3 cache, and 512 KB of L2 cache per core. It supports DDR4 memory in a dual-channel configuration with a memory bandwidth of 51.2 GB/s.

In synthetic benchmarks, the Ryzen 7 5700G demonstrates solid multi-threaded capability. It scores 12830.5 in Cinebench R23 multi-core and 2107 in Cinebench R15 multi-core. Its Geekbench multi-core score is 9950, and its 3DMark scores scale from 1758 with 2 threads to 6629 with 16 threads and 6627 with max threads. The PassMark multi-thread score is 24419, with a single-thread score of 3283.

The CPU's average benchmark score is 27051, placing it in the 79th percentile of all CPUs. Its nearest rival is the Intel Core i9-9900K with a score of 27097, a delta of -0.2%. The AMD Ryzen AI 7 445 scores 26936 (0.4% behind the 5700G), and the Intel Core i5-14400T scores 27166 (-0.4%). The Intel Core i7-1370P scores 26900, which is 0.6% behind. These results indicate that the 5700G offers competitive multi-threaded performance against these rivals, despite being an APU with integrated graphics.

In Rust, the CPU's role is significant given the game's simulation-heavy nature. Rust's world includes many entities, player constructions, and environmental systems that require CPU cycles. The 8-core, 16-thread configuration provides ample parallelism for these tasks. The Cinebench R23 multi-core score of 12830.5 suggests strong sustained multi-threaded performance, which helps maintain framerates when many entities are on screen.

However, the CPU's integrated graphics (Radeon Vega 8) is not used in this combo; instead, the Intel Arc B390 is the active GPU. The CPU still handles game logic and physics, while the Arc B390 renders frames. The interaction between the 5700G's memory bandwidth (51.2 GB/s) and the GPU's system-shared memory is crucial. Since the GPU uses system memory, the CPU's memory controller must service both CPU and GPU requests, which can create contention.

The benchmark data suggests that at 1080p Low, where the GPU is less stressed, the combo reaches 76 FPS. This indicates that the CPU can feed the GPU sufficiently at lower settings. The single-thread score of 1494 in Cinebench R23 and 899 in 3DMark single-thread show reasonable per-core performance, which matters for Rust's primary game thread. The PassMark single-thread score of 3283 further supports this.

At higher settings and resolutions, the GPU becomes the bottleneck, but the CPU's performance still influences the overall results. The fact that the combo ranks 2601st out of 2953 in Rust suggests that while the CPU is capable, the overall system is held back by the GPU's limitations. The CPU's 79th percentile ranking versus the GPU's 9th percentile ranking highlights this imbalance.

# Measured FPS Breakdown

At 1920x1080, the combo delivers its best results. Low settings produce an average of 76 FPS, the highest in the entire dataset. Medium settings yield 51 FPS with a range of 44 to 59 FPS. High settings average 43 FPS, and Ultra drops to 33 FPS. These results show that 1080p is the only resolution where the combo approaches smooth gameplay, and only at Low settings.

At 2560x1440, performance decreases noticeably. Low settings average 53 FPS, a 23 FPS drop from 1080p Low. Medium settings average 35 FPS with a range of 30 to 41 FPS. High settings average 30 FPS, and Ultra averages 23 FPS. None of these framerates are ideal for a competitive survival game, though Low settings might be borderline acceptable.

At 3840x2160, the combo struggles to maintain playable framerates. Low settings average 31 FPS, Medium averages 21 FPS with a range of 18 to 24 FPS, High averages 18 FPS, and Ultra averages 13 FPS. The 4K results are uniformly poor, with even the lowest settings producing sub-30 FPS averages.

The data reveals a consistent pattern: each resolution and settings tier imposes a significant performance cost. The transition from 1080p Low to 1080p Medium costs 25 FPS, while the transition from 1080p Medium to 1080p High costs 8 FPS. This non-linear scaling suggests that Medium settings introduce a substantial increase in GPU workload that the Arc B390 cannot handle efficiently.

When comparing settings across resolutions, the relative performance drops are consistent. Low settings at 1080p to 1440p see a 23 FPS reduction, and 1440p to 4K sees a 22 FPS reduction. Medium settings drop 16 FPS from 1080p to 1440p and 14 FPS from 1440p to 4K. High settings drop 13 FPS from 1080p to 1440p and 12 FPS from 1440p to 4K. Ultra settings drop 10 FPS from 1080p to 1440p and 10 FPS from 1440p to 4K.

These numbers indicate that the GPU's memory bandwidth limitations become more pronounced at higher resolutions. The system-shared memory architecture means that as resolution increases, the GPU must access more data from system memory, which is slower than dedicated VRAM. This explains the steep FPS drops at 4K, where even Low settings cannot maintain 30 FPS.

# How This Combo Ranks

The AMD Ryzen 7 5700G + Intel Arc B390 combination ranks 2601st out of 2953 tested combos in Rust. This places it in the bottom 12% of all configurations. The GPU's 9th percentile ranking is the primary driver of this poor performance, as the CPU's 79th percentile ranking is comparatively strong.

The imbalance between CPU and GPU performance is stark. The CPU's average benchmark score of 27051 is competitive with the Intel Core i9-9900K, while the GPU's 3DMark Steel Nomad score of 1482 is comparable to the NVIDIA GeForce GT 710. This means the system is heavily GPU-limited in Rust, a game that typically benefits from a balanced CPU-GPU partnership.

In the context of all tested combos, this pairing represents a scenario where a capable CPU is paired with an underpowered GPU. The CPU's multi-threaded performance (Cinebench R23 multi-core score of 12830.5) suggests it could drive much higher framerates if paired with a more powerful discrete GPU. However, the Arc B390's integrated nature and system-shared memory create a bottleneck that caps performance.

The rank of 2601 indicates that most other tested combos achieve better results in Rust. This is expected given the GPU's low-end positioning. The combo's best case is 1080p Low with 76 FPS average, which is playable but far from the high-refresh experience many Rust players seek. At any other settings or resolutions, the performance falls below 60 FPS, and at 4K, it drops below 30 FPS.

The data also shows that the combo's performance is consistent with other low-end GPU pairings. The GPU's nearest rivals (GT 520MX, 800M, GT 625 OEM, GT 710) are all legacy parts, and the Arc B390 only marginally outperforms them. This suggests that the combo's ranking is not anomalous but rather reflects the GPU's fundamental limitations.

# Settings Recommendations

Based on the measured FPS data, the optimal settings for this combo depend on the user's resolution and framerate priorities. At 1920x1080, Low settings provide the only truly playable experience, with an average of 76 FPS. This is the recommended configuration for smooth gameplay. Medium settings at 1080p average 51 FPS, which is acceptable for less demanding players but may feel inconsistent given the 44 to 59 FPS range.

At 2560x1440, Low settings average 53 FPS, which is borderline playable but below the 60 FPS threshold many players prefer. Medium settings at 1440p average 35 FPS, which is likely too low for most users. High and Ultra settings at 1440p (30 and 23 FPS respectively) are not recommended for any gameplay scenario.

At 3840x2160, no settings tier provides a playable experience. Low settings average 31 FPS, Medium averages 21 FPS, High averages 18 FPS, and Ultra averages 13 FPS. Users with 4K displays should avoid this combo for Rust or be prepared for significant performance compromises.

The data indicates a clear recommendation: 1080p with Low settings is the only configuration that delivers a framerate suitable for responsive gameplay. The 25 FPS drop from Low to Medium at 1080p is substantial, suggesting that Medium settings introduce a workload that the GPU cannot handle efficiently. Users who prioritize visual quality over framerate may consider Medium at 1080p, but the 51 FPS average is below optimal.

For users who must play at 1440p, Low settings at 53 FPS is the least bad option, but the experience will be less smooth than at 1080p. The absence of V-sync or adaptive sync options in the data means users may experience screen tearing at these framerates. Overall, the recommended setup is 1080p Low, which balances playability with the GPU's capabilities.

# Resolution Scaling

The FPS drops from 1080p to 4K reveal important insights about the limiting component. At Low settings, the average FPS decreases from 76 at 1080p to 53 at 1440p (a 30% reduction) and then to 31 at 4K (a 42% reduction from 1440p). This scaling is typical of a GPU-limited scenario, where increasing resolution directly increases the pixel workload.

At Medium settings, the FPS drops from 51 at 1080p to 35 at 1440p (a 31% reduction) and then to 21 at 4K (a 40% reduction from 1440p). The similar percentage drops across settings indicate that the GPU is consistently the bottleneck, regardless of the visual load. If the CPU were the limiting factor, we would expect smaller FPS differences between resolutions at lower settings, as the GPU would have spare capacity.

High settings show a drop from 43 FPS at 1080p to 30 FPS at 1440p (a 30% reduction) and then to 18 FPS at 4K (a 40% reduction). Ultra settings drop from 33 FPS at 1080p to 23 FPS at 1440p (a 30% reduction) and then to 13 FPS at 4K (a 43% reduction). The consistency of these percentage drops (around 30% for 1080p to 1440p and around 40% for 1440p to 4K) confirms that the GPU's rendering throughput is the primary constraint.

The system-shared memory architecture amplifies this effect. As resolution increases, the GPU must access larger amounts of data from system memory, and the bandwidth limitations become more severe. The CPU's memory bandwidth of 51.2 GB/s is shared between CPU and GPU, and at 4K, the GPU's demands likely saturate this bandwidth, causing the dramatic FPS drops.

The data also suggests that the CPU is not limiting at any resolution. The 1080p Low result of 76 FPS indicates that the CPU can feed the GPU sufficiently at lower resolutions. If the CPU were the bottleneck, we would see similar FPS across resolutions at the same settings, which is not the case. The consistent resolution-based scaling points squarely at the GPU as the limiting component.

In summary, the resolution scaling analysis shows that this combo is GPU-bound in Rust, with the Arc B390's limited pixel throughput and system-shared memory being the primary constraints. Users seeking higher framerates should prioritize lowering resolution and settings, with 1080p Low being the only configuration that approaches smooth gameplay.