Rust

The Intel Core i5-14600KF paired with the Intel Arc B390 produces a very specific, and very constrained, performance profile in Rust. With a combo rank of 2601 out of 2953 tested combinations, this platform sits in the lower 12% of all tested systems for this title. The data indicates a fundamental imbalance where the integrated-class GPU, which ranks in the 9th percentile among all GPUs, severely limits an otherwise capable desktop processor that sits in the 90th percentile among all CPUs. This pairing produces playable frame rates only at 1080p with the lowest settings, while higher resolutions and quality presets quickly push the system into slideshow territory. The benchmark results show a clear and consistent pattern: the Arc B390 is the bottleneck at every resolution tested, and the Core i5-14600KF's substantial processing power remains largely untapped in this gaming scenario.

How This Combo Ranks

The combo rank of 2601 out of 2953 tested combinations places this specific CPU-GPU pairing in the bottom 12% of all systems tested in Rust. This is a striking result given the hardware involved. The Intel Core i5-14600KF is a high-end desktop processor, with an average benchmark score of 49394 across all tested workloads, placing it in the 90th percentile of all CPUs. Its nearest rivals in CPU benchmark performance include the AMD Ryzen 9 7900 with an average score of 49228 (a delta of 0.3%), the AMD Ryzen 7 PRO 5755G at 49196 (0.4% delta), and the Intel Core Ultra 5 245 at 48995 (0.8% delta). The only rival it trails is the AMD Ryzen AI Max+ 388 at 49796, which is a mere 0.8% ahead. This CPU is clearly a top-tier performer in synthetic tests.

In stark contrast, the Intel Arc B390 GPU has an average benchmark score of just 1482, placing it in the 9th percentile of all GPUs. Its nearest rivals are all ancient or entry-level parts: the NVIDIA GeForce GT 520MX scores 1463 (1.3% ahead of the Arc), the NVIDIA GeForce 800M scores 1460 (1.5% ahead), the NVIDIA GeForce GT 625 OEM scores 1446 (2.5% ahead), and the NVIDIA GeForce GT 710 scores 1443 (2.7% ahead). This GPU is not merely at the bottom of the modern stack; it is benchmarked alongside hardware that is over a decade old. The combination of a top-decile CPU with a bottom-decile GPU creates the low combo rank, as the overall gaming experience in Rust is dictated by the weakest link, which is overwhelmingly the graphics processor.

What this rank reveals is that the system's potential for Rust is almost entirely untapped. The CPU's massive compute resources, which include 14 cores and 20 threads, are effectively idling while the GPU struggles to render frames. The data shows a 90th percentile CPU paired with a 9th percentile GPU, and the resulting combo rank of 2601 out of 2953 reflects that the gaming experience is dragged down to the level of the GPU. This is a textbook case of a CPU-bound system being hamstrung by its graphics solution. The benchmark results indicate that any upgrade path for this system would need to start with the GPU, as the CPU is far more than sufficient for Rust's demands, even at the highest settings and resolutions.

GPU Role

The Intel Arc B390 is the defining component in this pairing, and its specifications explain the observed frame rates. This is an integrated graphics processor (IGP) built on the Xe3-LPG architecture, using a 3 nm process node. It features 1536 shading units, 48 texture mapping units, and 24 raster operation units. The GPU also includes 12 ray tracing cores. Its clock speeds are listed with a base of 300 MHz and a boost of 2500 MHz. Critically, the memory configuration is "System Shared," meaning it uses a portion of the system's main memory rather than having dedicated VRAM. The memory bus width and type are also listed as "System Shared," and the bandwidth is "System Dependent." This means the GPU's performance is heavily influenced by the speed and configuration of the system RAM, which is a common limitation for integrated graphics.

The GPU's raw compute output is 7.680 TFLOPS for FP32 and 15.36 TFLOPS for FP16 (2:1). The pixel rate is 60.00 GPixel/s, and the texture rate is 120.0 GTexel/s. The TDP is listed at 80 W, which is low for a desktop component but typical for an integrated solution. The GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The single benchmark result available is a 3DMark Steel Nomad DX12 score of 1482, which places the GPU in the 9th percentile. This is a very low score, confirming that the Arc B390 is not designed for demanding 3D workloads like modern survival games.

In Rust, the GPU's limitations are immediately apparent. The combination of shared system memory and a low fill rate relative to modern discrete GPUs means that the Arc B390 cannot handle the game's rendering demands at higher settings. The data shows that at 1080p, the GPU can manage an average of 76 FPS at Low settings, which is the only playable result in the entire dataset. However, even a modest increase to Medium settings drops the average to 51 FPS, and High settings further reduce it to 43 FPS. At 4K, the GPU is overwhelmed, producing an average of 31 FPS at Low and just 13 FPS at Ultra. The 3DMark score of 1482, which is only 1.3% higher than the NVIDIA GeForce GT 520MX, underscores that this GPU is fundamentally outclassed by the processing requirements of Rust at higher resolutions and quality presets. The boost clock of 2500 MHz is not enough to compensate for the lack of dedicated memory bandwidth and the limited number of ROPs, which are crucial for pixel fill rate in a game like Rust.

CPU Role

The Intel Core i5-14600KF is a Raptor Lake Refresh processor, built on Intel's 10 nm process. It has 14 cores and 20 threads, with a base clock of 3.50 GHz and a boost clock of 5.30 GHz. The cache hierarchy includes 80 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3 cache. The CPU supports both DDR4 and DDR5 memory in a dual-channel configuration, and it has 16 PCIe Gen 5 lanes. The TDP is 125 W. Its synthetic benchmark scores are impressive: Cinebench R23 multicore is 32544 and single-core is 4594; Geekbench multicore is 17085 and single-core is 2445; Passmark multithread is 38697 and single-thread is 4273. The CPU's percentile rank is 90, and its average benchmark score of 49394 places it nearly exactly between the AMD Ryzen 9 7900 (49228) and the AMD Ryzen AI Max+ 388 (49796).

For Rust, the CPU's role is to handle game logic, entity updates, and the simulation of the persistent world. The game is known to be demanding on CPU single-thread performance, but it can also utilize multiple cores. The i5-14600KF's high boost clock of 5.30 GHz and strong single-core performance (Cinebench R23 single-core score of 4594) are well-suited for this task. The 14 cores and 20 threads provide ample multi-threaded headroom, as indicated by the Cinebench R23 multicore score of 32544. The data suggests that the CPU is not a limiting factor in this pairing. At 1080p Low, the system achieves 76 FPS, and the performance scaling across resolutions points to the GPU as the primary constraint.

When comparing resolutions, the average FPS at 1080p Low is 76, at 1440p Low it drops to 53, and at 4K Low it falls to 31. This scaling pattern is indicative of a GPU bottleneck. If the CPU were the limiting factor, the frame rates would be more consistent across resolutions. The CPU's ample single-thread performance, with a Passmark single-thread score of 4273 and a Geekbench single-core score of 2445, ensures that it can feed frames to the GPU without becoming a constraint. The CPU's performance in Rust is likely far higher than what the GPU can render, meaning that the i5-14600KF is effectively waiting for the Arc B390 at every turn. The benchmark results clearly show that the processor's capabilities are not being utilized to their full extent in this configuration.

Measured FPS Breakdown

The measured FPS data provides a precise picture of this system's performance in Rust. At 1920x1080, the resolution most likely to yield playable results, the system achieves an average of 76 FPS at Low settings. This is the only frame rate in the entire dataset that approaches what most players would consider smooth. At Medium settings, the average drops to 51 FPS, with a minimum of 44 FPS and a maximum of 59 FPS. At High settings, the average is 43 FPS. At Ultra settings, the average falls to 33 FPS. This shows a clear step-down in performance as settings increase, with a 25 FPS difference between Low and Medium.

Moving to 2560x1440, the performance degrades significantly. At Low settings, the average FPS is 53, which is still technically playable but represents a significant drop from the 1080p result. At Medium settings, the average is 35 FPS, with a minimum of 30 and a maximum of 41. At High settings, the average is 30 FPS, which is on the edge of playability for many. At Ultra settings, the average is just 23 FPS, which is not a smooth experience.

At 3840x2160, the system is largely overwhelmed. The only somewhat playable result is at Low settings, where the average FPS is 31. At Medium settings, the average is 21 FPS, with a minimum of 18 and a maximum of 24. At High settings, the average is 18 FPS. At Ultra settings, the average is 13 FPS. These results are all below what most players would consider acceptable for a fast-paced game like Rust, where responsiveness is key. The 4K data shows a system that is severely GPU-limited, with the Arc B390 unable to provide the necessary pixel throughput.

The data shows that the playable envelope for this system is exceptionally narrow. At 1080p, the Low preset is the only setting that provides a consistently smooth frame rate above 60 FPS. The Medium preset at 1080p might be acceptable for some, but the 44 FPS minimum is a risk. At 1440p, even Low settings struggle to maintain a high frame rate. The minimum FPS values are only provided for the Medium settings at each resolution, and they show that the system can dip to 44 FPS at 1080p, 30 FPS at 1440p, and 18 FPS at 4K. These low points indicate potential stuttering in intense scenes, which can be detrimental in a game where PvP combat requires quick reactions.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals the nature of the bottleneck in this system. At Low settings, the average FPS is 76 at 1080p, 53 at 1440p, and 31 at 4K. This represents a 30% drop from 1080p to 1440p, and a further 42% drop from 1440p to 4K. The total drop from 1080p to 4K is a 59% reduction in average frame rate. At Medium settings, the average FPS is 51 at 1080p, 35 at 1440p, and 21 at 4K. This is a 31% drop from 1080p to 1440p, and a 40% drop from 1440p to 4K, for a total of 59% from 1080p to 4K. At High settings, the average FPS is 43 at 1080p, 30 at 1440p, and 18 at 4K. This is a 30% drop from 1080p to 1440p and a 40% drop from 1440p to 4K, totaling a 58% reduction. At Ultra settings, the average FPS is 33 at 1080p, 23 at 1440p, and 13 at 4K, which is a 30% drop and then a 43% drop, for a total of 61% from 1080p to 4K.

The consistent pattern of roughly a 30% drop from 1080p to 1440p and a further 40% drop from 1440p to 4K is a strong indicator of a GPU bottleneck. The number of pixels being rendered increases significantly with each resolution step, and the Arc B390's limited fill rate and shared memory bandwidth cannot keep up with the increased demand. If the CPU were the limiting factor, the frame rates would show a much smaller difference between resolutions, as the CPU's workload would be similar regardless of the output resolution. The fact that the FPS scales almost linearly with the pixel count indicates that the GPU is saturated at all times.

This scaling behavior has practical implications. For a player using this system, the resolution choice has a massive impact on playability. The system can deliver 76 FPS at 1080p Low, but attempting to play at 1440p Low drops the frame rate to 53, and 4K Low is only 31 FPS. The data shows that the GPU is the limiting component at every resolution and settings combination. The Core i5-14600KF's performance is essentially irrelevant beyond ensuring that it can provide the necessary draw calls and physics calculations, which it does with ease given its 90th percentile ranking. The bottleneck is so pronounced that even at the lowest resolution tested, 1080p, the GPU is already the constraint, as evidenced by the significant FPS drop when moving to 1440p.

Settings Recommendations

Based on the measured FPS data, the only configuration that provides a consistently smooth experience is 1920x1080 with the Low preset. At this setting, the system achieves an average of 76 FPS, which is above the 60 FPS threshold that most players consider necessary for a responsive experience. This is the only data point in the entire set that achieves this level of performance. The 1080p Medium preset, with an average of 51 FPS, is borderline. It might be acceptable for players who prioritize visual quality over frame rate, but the minimum of 44 FPS could lead to noticeable stutters in demanding scenes. The 1080p High preset, at 43 FPS, is playable but not ideal, and the Ultra preset at 33 FPS is below the threshold for smooth gameplay.

At 2560x1440, the data suggests that the system is not suitable for competitive play. The Low preset provides an average of 53 FPS, which is playable but not smooth, and the Medium, High, and Ultra presets all fall below 35 FPS. The 4K resolution is not viable for this game, with even the Low preset only managing an average of 31 FPS. The minimum FPS values for the Medium presets reinforce this assessment. At 1080p Medium, the minimum is 44 FPS; at 1440p Medium, it drops to 30 FPS; and at 4K Medium, it is 18 FPS. These lows indicate that the system will have difficulty maintaining consistent frame pacing under load.

The recommendation is clear: players should use 1920x1080 with the Low preset to get the best experience from this hardware. This is the only settings combination that leverages the system's potential without hitting the severe GPU bottleneck. Moving to higher settings or resolutions results in a disproportionate drop in performance, with frame rates falling below acceptable levels. While the Low preset at 1080p may not showcase the game's visual fidelity, it is the only way to achieve a playable frame rate. The data shows that the Intel Arc B390 is simply not powerful enough to handle Rust at higher quality settings, and the system's overall rank of 2601 out of 2953 reflects this limitation. For players who own this combination, sticking to 1080p Low is the only sensible choice based on the measured results.