Rust

Rust with the Intel Core Ultra 9 290K Plus and Intel Arc B390 presents a stark study in system imbalance. The CPU is a top-tier desktop part, while the GPU is an integrated graphics solution operating at the bottom of the discrete GPU hierarchy. The measured frame rates across resolutions and settings paint a clear picture of a system where the graphics processor is the definitive bottleneck.

Resolution Scaling

The data shows a dramatic and consistent decline in frame rates as resolution increases, which is the classic signature of a GPU-limited scenario. At 1920x1080 with Low settings, the system achieves an average of 76 FPS. Moving to 2560x1440 at the same settings drops the average to 53 FPS, a reduction of roughly 30%. The final step to 3840x2160 at Low settings yields only 31 FPS, which is a further 41% drop from the 1440p result. This pattern indicates that the rendering workload is scaling heavily with pixel count, a burden that falls squarely on the graphics processor.

The scaling behavior at higher settings is even more telling. For the Ultra preset, the average frame rate falls from 33 FPS at 1080p to 23 FPS at 1440p, and then plummets to 13 FPS at 4K. The progression is linear and steep, suggesting that the GPU is not just struggling with raw pixel throughput but also with the added shader and texture complexity of the higher presets. The fact that the frame rate nearly halves when moving from 1440p to 4K on Ultra settings indicates that the GPU's compute and memory resources are being exhausted.

This scaling pattern implies that the limiting component is unambiguously the Intel Arc B390. A system where the CPU were the bottleneck would typically show less dramatic frame rate variance across resolutions, as the CPU's workload is less dependent on resolution. Here, the frame rate is almost entirely a function of resolution and settings, pointing to the integrated GPU as the component that dictates performance. The 24-core CPU is effectively idle, waiting for the GPU to finish each frame.

FAQ

Q: What is the best average frame rate this combo can achieve in Rust?

A: The highest measured average frame rate is 76 FPS, which occurs at 1920x1080 resolution with the Low settings preset.

Q: How does the system perform at 4K resolution?

A: At 3840x2160, performance is marginal. The highest average frame rate at this resolution is 31 FPS with Low settings, while the Ultra preset yields a 13 FPS average.

Q: Is this system capable of running Rust at 60 FPS?

A: Yes, but only at 1080p with the Low settings preset, where it hits 76 FPS. No other combination of resolution and settings in the measured data reaches a 60 FPS average.

Q: What is the difference in performance between the Low and Ultra presets at 1440p?

A: At 2560x1440, the Low preset achieves a 53 FPS average, while the Ultra preset achieves a 23 FPS average, representing a significant performance cost for higher visual fidelity.

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

A: The combo ranks 2601 out of 2953 tested combinations, placing it in the bottom 12% of systems tested for this game.

Q: What are the minimum and maximum frame rates recorded for the Medium preset?

A: For the Medium preset, the measured minimum and maximum frame rates are as follows: at 1080p, 44 to 59 FPS; at 1440p, 30 to 41 FPS; and at 4K, 18 to 24 FPS.

GPU Role

The Intel Arc B390 is the decisive factor in this system's Rust performance. Its specifications within the FACT PACK are modest for a gaming-focused component, and the measured results reflect this. The GPU is based on the Xe3-LPG architecture and operates as an integrated graphics processor (IGP) with a 80 W TDP. Its clock speeds are listed with a base of 300 MHz and a boost of 2500 MHz. The memory configuration is "System Shared," meaning it relies on the main system's DDR5 memory rather than dedicated VRAM. This shared memory arrangement is a critical limitation for a game like Rust, which is known for its large, persistent world and substantial memory footprint.

The benchmark data for the GPU itself shows a 3DMark Steel Nomad DX12 score of 1482. Its percentile ranking versus all GPUs is 9, placing it in the bottom 10% of all graphics processors. The nearest rivals listed are legacy mobile and OEM parts like the NVIDIA GeForce GT 520MX and the GeForce GT 710, with delta percentages of 1.3% to 2.7%. This context is essential: the Arc B390 is not competing with modern desktop graphics cards; it is positioned in the same performance tier as decade-old entry-level solutions. This explains why the measured FPS in Rust is so low. The GPU's 7.680 TFLOPS of FP32 compute and 60.00 GPixel/s pixel rate are simply insufficient for the demands of rendering a modern game at high resolutions and detail levels.

The impact of the shared memory and low compute power is visible in the frame rates. At 1080p Low, the system produces 76 FPS, which is playable, but this is the absolute ceiling for the GPU. The moment the settings are raised to High, the average drops to 43 FPS, demonstrating the GPU's inability to handle increased shading complexity. The data suggests that the GPU is the single point of failure for this configuration, and its performance characteristics are the primary reason for the combo's low rank in the game.

Measured FPS Breakdown

The measured FPS data provides a complete picture of this system's capabilities across all four settings presets and three resolutions.

At 1920x1080, the system shows its best performance. The Low preset yields a 76 FPS average, which is the only average above 60 FPS in the entire dataset. The Medium preset produces a 51 FPS average, with a minimum of 44 FPS and a maximum of 59 FPS. The High preset drops to a 43 FPS average. The Ultra preset is the most demanding, resulting in a 33 FPS average. This resolution is the only one where the system approaches playability across multiple presets.

Moving to 2560x1440, the performance degradation is immediate and significant. The Low preset average falls to 53 FPS. The Medium preset averages 35 FPS, with a minimum of 30 FPS and a maximum of 41 FPS. The High preset averages 30 FPS. The Ultra preset averages just 23 FPS. At this resolution, even the Low preset cannot maintain a smooth 60 FPS experience.

At 3840x2160, the system is overwhelmed. The Low preset is the only option that breaks the 30 FPS barrier, averaging 31 FPS. The Medium preset averages 21 FPS, with a minimum of 18 FPS and a maximum of 24 FPS. The High preset averages 18 FPS. The Ultra preset averages a mere 13 FPS, which is a slideshow-level performance. The data shows a clear linear progression of decreasing frame rates with increasing resolution and settings, confirming the GPU as the primary bottleneck.

Settings Recommendations

Based on the measured rows, the only viable path to a smooth experience is to use the Low preset at 1920x1080, which achieves the sole 60+ FPS average in the dataset at 76 FPS. For users who want to experience the game at a higher visual quality, the Medium preset at 1080p is the next best option, offering a 51 FPS average. While not perfectly smooth, this is a more balanced trade-off between visual fidelity and playability than the High preset, which drops to 43 FPS, or the Ultra preset, which falls to 33 FPS.

At 2560x1440, the data suggests that players should stick to the Low preset for a playable 53 FPS average. Moving to Medium at this resolution introduces a significant performance hit, resulting in a 35 FPS average, which may be too choppy for most. The High and Ultra presets at 1440p are not recommended, as their 30 and 23 FPS averages respectively are below the threshold for comfortable gameplay.

The 3840x2160 resolution is not recommended for this combo. Even the Low preset only manages a 31 FPS average, which is below the standard for a playable experience. The higher presets at 4K are effectively unplayable, with averages ranging from 13 to 21 FPS. The data indicates that the Intel Arc B390 lacks the resources to handle 4K rendering in Rust, so users with this system should not attempt to play at this resolution.

CPU Role

In stark contrast to the GPU, the Intel Core Ultra 9 290K Plus is an exceptionally powerful processor. The FACT PACK lists it with 24 cores and 24 threads, a base clock of 3.70 GHz, and a boost clock of 5.80 GHz. Its benchmark scores are impressive, including a Cinebench R23 multi-core score of 51731 and a single-core score of 7303. It also holds a 96th percentile ranking versus all CPUs, indicating it is faster than 96% of all processors in the database. Its nearest rivals are other high-end parts like the Intel Core Ultra 9 285K and AMD EPYC server processors, with deltaPct values of 0.2% and 1.1% respectively. This is a top-tier CPU designed for heavy multi-threaded workloads.

However, the measured FPS data in Rust shows that this CPU power is entirely untapped. The frame rates are so low across all settings and resolutions that the CPU is never the limiting factor. In this specific configuration, the CPU's role is to wait for the GPU to render each frame. The game's simulation and physics workloads, which would heavily utilize the CPU's 24 cores, are being processed rapidly. The bottleneck is the rendering pipeline, which is handled by the weak Arc B390.

The data implies that this CPU has an enormous amount of headroom. If paired with a more capable GPU, the system's frame rates would be dramatically higher. The current performance is not a reflection of the CPU's capabilities, but rather a direct consequence of the GPU's limitations. The 24 cores and 5.80 GHz boost clock are essentially wasted in this pairing for gaming purposes, as the system is unable to feed the CPU enough frames to keep it busy.

How This Combo Ranks

The overall ranking for this combo in Rust is 2601 out of 2953 tested combinations. This places the system in the bottom 12% of all configurations tested for this game. This low ranking is entirely consistent with the individual component data. The GPU's percentile ranking is 9, placing it in the bottom 10% of all GPUs, while the CPU's percentile ranking is 96, placing it in the top 4% of all CPUs. The system's overall performance is dragged down by the GPU.

The nearest CPU rivals, such as the Intel Core Ultra 9 285K, have similar average scores with a delta of only 0.2%, but this is irrelevant in this context. The GPU's nearest rivals are the NVIDIA GeForce GT 520MX and GeForce GT 710, which are parts from a completely different era. The deltaPct values of 1.3% and 2.7% between these GPUs are small, but the absolute performance level is the key takeaway.

This ranking is a direct consequence of the hardware pairing. The data shows that the Arc B390 is not a gaming-oriented part, and its performance in Rust is below the threshold for a satisfactory experience at most settings. The combo's rank of 2601 reflects that this system is not competitive with other tested configurations, which likely include dedicated graphics cards. The high-performing CPU is unable to compensate for the GPU's deficiencies, resulting in a system that is severely limited in Rust.