Rust

Rust is a notoriously demanding survival game, and the combination of an AMD Ryzen 5 5600 with an Intel Arc B390 produces a very specific performance profile that is heavily skewed by the GPU's limitations. The measured data shows this pairing ranks 2601st out of 2953 tested combos for Rust, placing it in the lower percentile of systems. The Intel Arc B390, despite its modern Xe3-LPG architecture, sits at the 9th percentile among all GPUs, which directly translates to sub-60 FPS gameplay at nearly every setting and resolution tested. This analysis breaks down the exact measured FPS, the role of each component, and what settings users should realistically employ.

FAQ

Q: What is the best average FPS this combo achieves in Rust at 1080p?

A: At 1920x1080 with Low settings, the combo achieves its highest measured average of 76 FPS. This is the only settings preset at any resolution that crosses the 60 FPS threshold.

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

A: The Arc B390's average benchmark score of 1482 is 1.3% higher than the NVIDIA GeForce GT 520MX (1463), 1.5% higher than the GeForce 800M (1460), and 2.5% higher than the GeForce GT 625 OEM (1446). It performs within a very narrow band of these older mobile and OEM parts.

Q: What is the FPS drop from 1080p to 4K on High settings?

A: On High settings, the average FPS drops from 43 at 1920x1080 to 30 at 2560x1440, and finally to 18 at 3840x2160. This represents a 58.1% reduction in average FPS from 1080p to 4K.

Q: Does the CPU or GPU bottleneck this system in Rust?

A: The data indicates the GPU is the primary bottleneck. The Arc B390 has a 9.0 percentile rank among all GPUs, while the Ryzen 5 5600 has a 74.0 percentile rank among all CPUs. The GPU's relative weakness is far more likely to limit frame rates.

Q: What are the minimum FPS figures recorded on Medium settings?

A: On Medium settings, the minimum FPS is 44 at 1920x1080, 30 at 2560x1440, and 18 at 3840x2160. These minimums show that even the mid-tier preset struggles to maintain smooth gameplay.

Q: How does the Ryzen 5 5600's multi-threaded performance compare to its rivals?

A: The Ryzen 5 5600's average benchmark score is 20468. It is 0.1% ahead of the Intel Core Ultra 7 258V (20454), 0.2% ahead of the AMD Ryzen 5 8500G (20425), and 0.5% ahead of the AMD EPYC 9454P (20422).

GPU Role

The Intel Arc B390 is the defining component in this pairing, and its measured performance in Rust reflects its low standing in the overall GPU hierarchy. With a percentile rank of just 9.0 against all GPUs, it sits in the bottom tenth of the performance spectrum. The GPU's core configuration includes 1536 shading units, 48 texture mapping units, and 24 raster output pipelines, which are modest numbers for a modern graphics processor. Its boost clock is listed at 2500 MHz, but the raw throughput is limited to 7.680 TFLOPS for FP32 operations, a figure that is simply insufficient for high-fidelity gaming at modern resolutions.

The most critical specification here is the memory: the Arc B390 uses "System Shared" memory, with a bus width and bandwidth that are "System Dependent". This means the GPU relies on the system's DDR4 memory rather than dedicated VRAM. The Ryzen 5 5600 supports dual-channel DDR4 with a theoretical bandwidth of 51.2 GB/s, but this is shared between the CPU and GPU workloads. In Rust, a game that is sensitive to memory latency and bandwidth, this shared configuration likely contributes to the low frame rates observed. The data shows that at 3840x2160 Ultra settings, the average FPS plummets to 13, which is nearly unplayable. Even at 1920x1080 Ultra, the average is only 33 FPS, indicating that the GPU cannot handle the game's high-detail textures and draw distances without significant frame drops.

The 3DMark Steel Nomad DX12 benchmark score of 1482 reinforces this picture. The nearest rivals for the Arc B390 are the NVIDIA GeForce GT 520MX, GeForce 800M, GT 625 OEM, and GT 710, all of which are low-end parts from previous generations. The deltaPct values are small, ranging from 1.3% to 2.7% ahead of these competitors, which places the Arc B390 firmly in the entry-level category. For Rust, this means the GPU is the limiting factor in almost every scenario, and its performance is best described as capable of running the game, but not at high quality settings.

How This Combo Ranks

The combo rank for this specific pairing is 2601 out of 2953 tested combos, placing it in the bottom 12% of all systems tested for Rust. This ranking is a direct consequence of the GPU's low percentile score. The Ryzen 5 5600 CPU is a strong performer, ranking in the 74th percentile among all CPUs, but it cannot compensate for the Arc B390's lack of graphical horsepower.

The data suggests that this combination is heavily unbalanced. In a game like Rust, where the CPU handles physics and game logic while the GPU renders the large, open-world environment, a mismatch like this leads to a situation where the CPU is often waiting on the GPU to finish rendering frames. The measured FPS figures across all resolutions show that the system rarely achieves playable frame rates at high settings. For example, at 1080p High, the average is 43 FPS, which is below the 60 FPS target for smooth gameplay. At 1440p High, the average drops to 30 FPS, and at 4K High, it falls to 18 FPS.

The ranking also implies that many other CPU-GPU combinations deliver better results in Rust. The fact that the Arc B390's nearest rivals are from the GT 700 series and the 800M series suggests that this GPU is not designed for the demands of a game like Rust, which is known for its heavy draw calls and large world rendering. The combo's rank of 2601 reflects a system that is fundamentally limited by its graphics solution, and users would need to significantly lower settings to achieve a smoother experience.

Measured FPS Breakdown

The measured FPS data provides a comprehensive look at how this system performs across three resolutions and four settings presets. At 1920x1080, the lowest resolution tested, the system achieves its best results. On Low settings, the average FPS is 76, which is the only preset that breaks the 60 FPS barrier. Medium settings produce an average of 51 FPS, with a minimum of 44 and a maximum of 59. High settings yield an average of 43 FPS, and Ultra settings drop to an average of 33 FPS. This shows a clear scaling pattern where each step up in quality costs roughly 8-10 FPS on average.

Moving to 2560x1440, the performance drops significantly. Low settings average 53 FPS, which is a 30.3% decrease from the 1080p Low result. Medium settings average 35 FPS (minimum 30, maximum 41), High settings average 30 FPS, and Ultra settings average 23 FPS. The gap between Low and Ultra at this resolution is 30 FPS, highlighting the GPU's struggle with higher pixel counts.

At 3840x2160, the system is clearly overburdened. Low settings average 31 FPS, Medium averages 21 FPS (minimum 18, maximum 24), High averages 18 FPS, and Ultra averages 13 FPS. All four settings at 4K produce average frame rates below 32 FPS, making the game effectively unplayable at this resolution. The minimum FPS figures on Medium at 4K (18 FPS) are particularly low, indicating that the game can stutter severely during intense moments.

The data reveals that the system is only viable at 1080p with Low or Medium settings if the user desires a stable frame rate near or above 50 FPS. At any higher resolution or quality setting, the frame rates fall below 45 FPS, which is generally considered the lower bound for a playable experience in a fast-paced survival game.

CPU Role

The AMD Ryzen 5 5600 is a 6-core, 12-thread processor based on the Zen 3 architecture, codenamed Vermeer. It has a base clock of 3.50 GHz and a boost clock of 4.40 GHz, with a 65W TDP. The CPU's cache configuration includes 64 KB of L1 per core, 512 KB of L2 per core, and a 32 MB shared L3 cache. This is a solid mid-range processor that performs well in both single-threaded and multi-threaded workloads, as evidenced by its benchmark scores. Its Cinebench R23 multi-core score is 18309 and single-core score is 2584, while its Geekbench multi-core score is 9158 and single-core score is 1936.

In the context of Rust, the CPU's role is to handle game logic, entity updates, and the complex physics of the destructible environment. The Ryzen 5 5600's strong single-thread performance, as shown by its PassMark single-thread score of 3256, is beneficial for a game that often relies on a primary game thread. The CPU's 74th percentile ranking among all CPUs indicates it is more than capable of feeding frames to the GPU in most scenarios. However, the benchmark data shows that the CPU is not the limiting factor in this pairing.

The nearest rivals to the Ryzen 5 5600 are the Intel Core Ultra 7 258V, AMD Ryzen 5 8500G, and AMD EPYC 9454P, all of which have average benchmark scores within 0.5% of the Ryzen 5 5600. This indicates that the CPU is well-positioned in the market, but its performance headroom is wasted when paired with the Arc B390. The CPU could likely push higher frame rates with a more powerful GPU, but with the current setup, it is often idle while waiting for the GPU to render the next frame. This is a classic case of a CPU being held back by an underpowered graphics card.

Settings Recommendations

Based on the measured FPS data, the only settings preset that provides a consistently smooth experience is 1920x1080 with Low settings, which averages 76 FPS. This should be the default recommendation for any user with this hardware configuration. The Low preset at 1440p averages 53 FPS, which is playable but may not be smooth enough for competitive scenarios. At 1080p Medium, the average of 51 FPS is also an option, but the minimum FPS of 44 suggests that there will be noticeable dips during intense gameplay.

For users who prioritize visual quality over frame rate, 1080p High at 43 FPS is the highest quality setting that remains above 40 FPS. However, this is a marginal experience, and the data suggests that the game will feel less responsive. The Ultra preset is not recommended at any resolution, as it only achieves 33 FPS at 1080p and drops to 13 FPS at 4K, making the game unplayable at those settings.

The best balance between visual fidelity and performance is achieved at 1080p Low, which offers a frame rate high enough to be smooth while still providing a playable experience. The 1440p Low preset is a viable alternative for users with a higher-resolution monitor, as the 53 FPS average is acceptable, but the lower 1080p resolution will provide a more consistent experience. The data clearly indicates that this system is not designed for high or ultra settings in Rust, and users should prioritize frame rate over visual quality.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals the GPU-bound nature of this system. On Low settings, the average FPS drops from 76 at 1080p to 53 at 1440p (a 30.3% decrease) and then to 31 at 4K (a 41.5% decrease from 1440p). The total drop from 1080p to 4K on Low settings is 59.2%. On High settings, the drop is more severe: from 43 at 1080p to 30 at 1440p (30.2% decrease) and then to 18 at 4K (40% decrease from 1440p). The total drop from 1080p to 4K on High settings is 58.1%.

These percentage drops are relatively consistent across settings, which indicates that the GPU is the primary limiting factor. If the CPU were the bottleneck, the FPS would not drop as significantly with increasing resolution, because the CPU workload would remain roughly the same. The fact that the FPS scales almost linearly with the number of pixels suggests that the Arc B390 is fully saturated at all resolutions. The system's memory bandwidth, which is shared between the CPU and GPU, may also contribute to this scaling, as higher resolutions demand more memory throughput.

The data implies that the limiting component is unequivocally the GPU. The Ryzen 5 5600's performance is more than sufficient to handle the game's logic at any resolution, but the Arc B390's rendering capabilities are exhausted at even 1080p. Users considering this setup for Rust should be aware that higher resolutions will not yield playable results, and the system is best suited for 1080p gaming with reduced settings. The resolution scaling pattern here is a textbook example of GPU-bound performance, where the frame rate is directly tied to the rendering workload.