Rust

The Intel Core i7-14700K paired with the Intel Arc B390 produces a fundamentally GPU-bound experience in Rust, where the integrated graphics solution consistently limits frame rates across all tested resolutions. The data indicates that while the 20-core processor provides ample headroom for physics and world simulation, the Arc B390’s performance profile places this combination in the bottom 12% of all tested system configurations, making it unsuitable for competitive play or high-refresh-rate monitors. The measured frames per second (FPS) reveal a clear pattern: as resolution increases, the system’s ability to maintain playable frame rates deteriorates sharply, underscoring the graphics subsystem as the primary bottleneck.

Resolution Scaling

The measured FPS data shows a pronounced decline as resolution scales from 1920x1080 up to 3840x2160, a trend that directly implicates the Intel Arc B390 as the limiting component. At 1080p with Low settings, the system achieves an average of 76 FPS, which is the only configuration in the entire dataset that approaches a smooth, responsive experience. Stepping up to 2560x1440 at the same Low preset drops the average to 53 FPS, a 30% reduction that highlights how quickly the GPU’s fill rate and shading capacity are exhausted. At 3840x2160, the Low preset yields just 31 FPS, meaning the resolution increase from 1080p to 4K cuts performance by more than half, from 76 to 31 FPS.

This scaling behavior is characteristic of a system where the GPU’s 1536 shading units and 24 ROPs are overwhelmed by pixel throughput demands. The gap between Low and Ultra settings widens dramatically at higher resolutions: at 1080p, the spread between Low (76 FPS) and Ultra (33 FPS) is 43 FPS, while at 4K, the spread between Low (31 FPS) and Ultra (13 FPS) is only 18 FPS. This narrowing suggests that at 4K, even the lowest settings cannot escape the GPU’s raw compute limits, whereas at 1080p, the settings menu has more influence over the final frame rate. The medium preset’s minimum FPS values reinforce this: at 1080p Medium, the minimum is 44 FPS, but at 1440p Medium, it drops to 30 FPS, and at 4K Medium, it falls to 18 FPS, showing a consistent floor that tracks with resolution rather than settings complexity.

The data suggests that Rust’s draw calls and object rendering at higher resolutions saturate the Arc B390’s 7.680 TFLOPS of FP32 compute and 120.0 GTexel/s texture rate. The 4K Ultra result of 13 FPS is particularly telling, as it indicates the GPU is operating at its absolute ceiling, likely struggling with both vertex processing and fragment shading simultaneously. For users targeting 1440p, the system can only manage 30 FPS on High settings, which is below the 60 FPS threshold most players consider necessary for fluid gameplay. The 1080p Low result of 76 FPS is the lone bright spot, but even that falls short of 144 Hz displays, and it comes at the cost of visual fidelity.

How This Combo Ranks

Within the benchmark database’s tested combos for Rust, this configuration ranks 2601 out of 2953 total combinations, placing it in the 12th percentile of all systems evaluated. This ranking reflects the Arc B390’s position in the GPU hierarchy rather than any deficiency in the Core i7-14700K, as the processor’s standalone benchmarks place it in the 94th percentile of all CPUs tested. The disparity between the CPU’s high percentile (94) and the combo’s low rank (2601) is stark, confirming that the graphics solution is the overwhelming bottleneck in this pairing.

The GPU’s nearest rivals in the database’s benchmark scores illustrate its performance class: the Arc B390 scores 1482 in 3DMark Steel Nomad DX12, sitting just 1.3% above the NVIDIA GeForce GT 520MX (1463) and 2.7% above the GeForce GT 710 (1443). These are entry-level discrete GPUs from over a decade ago, and the Arc B390’s deltaPct values against them (ranging from 1.3% to 2.7%) indicate that it offers essentially no meaningful advantage over these legacy parts. The 3DMark score of 1482 also places the GPU in the 9th percentile of all GPUs tested, which aligns with the combo’s low overall rank in Rust.

When interpreting the combo rank, it is essential to recognize that Rust is a CPU-intensive game due to its large persistent world and complex entity interactions. The Core i7-14700K’s 20 cores and 28 threads should theoretically provide excellent performance in this regard, but the GPU’s inability to keep pace means the processor’s capabilities are largely wasted. The data shows that even if the CPU were upgraded, the combo rank would not improve without a corresponding GPU upgrade, as the measured FPS values are consistently below what the CPU could support. This rank of 2601 out of 2953 should be viewed as a warning to users that this configuration is not suited for Rust beyond casual low-resolution play.

FAQ

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

A: The highest measured average FPS is 76, achieved at 1920x1080 resolution with Low settings. No other configuration in the dataset exceeds this value, and it represents the only playable frame rate for smooth gameplay.

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

A: The Arc B390 scores 1482 in 3DMark Steel Nomad DX12, which is 1.3% higher than the NVIDIA GeForce GT 520MX (1463), 1.5% higher than the GeForce 800M (1460), and 2.7% higher than the GeForce GT 710 (1443). These deltas are marginal, indicating the Arc B390 performs at a similar level to these legacy parts.

Q: Is the Core i7-14700K the bottleneck in this system?

A: No. The CPU ranks in the 94th percentile of all tested processors, with an average benchmark score of 69355. The combo rank of 2601 out of 2953 in Rust is driven by the GPU, which ranks in the 9th percentile of all GPUs.

Q: Can this system handle 4K gaming in Rust?

A: The data shows that at 3840x2160, the highest average FPS is 31 on Low settings, dropping to 13 on Ultra. These frame rates are below playable thresholds, so 4K gaming is not viable with this configuration.

Q: What is the difference between Low and Ultra settings at 1080p?

A: At 1920x1080, Low settings produce 76 FPS average, while Ultra settings produce 33 FPS average. This 43 FPS difference shows that settings have a significant impact at this resolution, unlike at 4K where the impact is smaller.

Q: Does the Arc B390 have dedicated VRAM?

A: No. The GPU uses System Shared memory, with a memory bus width and bandwidth listed as System Shared and System Dependent, respectively. This means performance can vary based on the system’s RAM configuration.

Measured FPS Breakdown

The measured FPS dataset provides a comprehensive view of performance across three resolutions and four settings presets. At 1920x1080, the system delivers an average of 76 FPS on Low, 51 FPS on Medium (with a minimum of 44 and maximum of 59), 43 FPS on High, and 33 FPS on Ultra. The Medium preset’s min-max range of 44-59 FPS indicates some frame time variability, but it remains the second-best configuration overall. The 1080p results show a clear linear progression: dropping from Low to Medium costs 25 FPS, Medium to High costs 8 FPS, and High to Ultra costs 10 FPS.

Moving to 2560x1440, the averages fall to 53 FPS on Low, 35 FPS on Medium (min 30, max 41), 30 FPS on High, and 23 FPS on Ultra. The relative performance drop from 1080p to 1440p is consistent across settings, with Low losing 23 FPS, Medium losing 16 FPS, High losing 13 FPS, and Ultra losing 10 FPS. This pattern suggests that at higher settings, the CPU’s role becomes slightly more prominent, as the GPU is already saturated, but the overall trend remains GPU-limited. The 1440p Medium range of 30-41 FPS shows tighter frame pacing than the 1080p Medium range, likely because the GPU is consistently maxed out.

At 3840x2160, the results are uniformly poor: 31 FPS on Low, 21 FPS on Medium (min 18, max 24), 18 FPS on High, and 13 FPS on Ultra. The 4K results demonstrate that even the lowest settings cannot escape the GPU’s pixel throughput limits. The Medium preset’s min-max range of 18-24 FPS is the only 4K configuration with recorded minimum and maximum values, and it shows a narrow band that suggests the GPU is running at its absolute limit without significant frame time spikes. The progression from Low to Medium at 4K costs 10 FPS, Medium to High costs 3 FPS, and High to Ultra costs 5 FPS, showing diminishing returns as settings increase.

Across all resolutions, the Low preset consistently provides the highest average FPS, with 76 at 1080p, 53 at 1440p, and 31 at 4K. The Ultra preset provides the lowest, with 33 at 1080p, 23 at 1440p, and 13 at 4K. The data indicates that users seeking any semblance of playability must use Low settings, and even then, only 1080p yields an acceptable frame rate.

GPU Role

The Intel Arc B390 is an integrated graphics solution based on the Xe3-LPG architecture, built on Intel’s 3 nm process node. Its specifications include 1536 shading units, 48 texture mapping units, and 24 ROPs, with a base clock of 300 MHz and a boost clock of 2500 MHz. The GPU’s FP32 compute is rated at 7.680 TFLOPS, with a texture rate of 120.0 GTexel/s and a pixel rate of 60.00 GPixel/s. Critically, the memory configuration is System Shared, meaning the GPU relies on the system’s main RAM rather than dedicated VRAM, with bandwidth listed as System Dependent.

This memory arrangement is a primary factor in the measured performance. In Rust, which has large texture sets and frequent asset streaming, the lack of dedicated VRAM forces the GPU to compete with the CPU for memory bandwidth. The 3DMark Steel Nomad DX12 score of 1482 places the GPU in the 9th percentile of all GPUs, and its nearest rivals are all legacy NVIDIA parts from the GT 500 and GT 700 series. The deltaPct values against these rivals (1.3% to 2.7%) show that the Arc B390 offers no real performance advantage, meaning users should expect frame rates similar to a decade-old entry-level discrete GPU.

The GPU’s 12 ray tracing cores support DirectX 12 Ultimate (12_2), but in Rust, ray tracing is not a significant workload, so this feature has minimal impact on the measured results. The boost clock of 2500 MHz is reasonably high for an integrated part, but the System Shared memory bandwidth bottleneck prevents it from being fully utilized in memory-intensive scenarios. The 80 W TDP and IGP slot width indicate this is designed for low-power systems, not gaming performance. The data shows that the GPU’s 7.680 TFLOPS are simply insufficient for Rust’s rendering demands at resolutions above 1080p, as evidenced by the steep FPS drops when moving from Low to Ultra settings.

CPU Role

The Intel Core i7-14700K is a 20-core, 28-thread processor based on Raptor Lake architecture, with a base clock of 3.40 GHz and a boost clock of 5.60 GHz. It features 33 MB of shared L3 cache and 2 MB of L2 cache per core, with a TDP of 125 W. The CPU’s benchmark scores are strong: Cinebench R23 multi-core reaches 33440.5, single-core reaches 2160, and Geekbench multi-core scores 20767. These results place the processor in the 94th percentile of all CPUs tested, with an average benchmark score of 69355.

In Rust, the CPU’s role is to handle world simulation, entity updates, and physics calculations. The 20 cores and 28 threads provide substantial multi-threaded capacity, which should benefit Rust’s server-side and client-side simulation. The Cinebench R23 multi-core score of 33440.5 and PassMark multi-thread score of 52392 indicate that the processor can handle heavy computational loads without breaking a sweat. However, the measured FPS data reveals that this CPU power is not being fully utilized, as the GPU consistently limits frame rates to values far below what the CPU could support.

The nearest CPU rivals in the database include the AMD Ryzen 9 7950X (avg score 69515, deltaPct -0.2%) and AMD Ryzen 7 9700F (avg score 69996, deltaPct -0.9%), showing that the i7-14700K performs within 1% of these top-tier parts. This means that in a system with a more capable GPU, the i7-14700K would not be a limiting factor in Rust. The CPU’s 94th percentile ranking versus the GPU’s 9th percentile ranking creates a massive imbalance in this combo, where the processor is effectively waiting for the graphics solution to catch up. The data suggests that users would see identical frame rates with a significantly weaker CPU, as the GPU is the sole determinant of performance in this configuration.

Settings Recommendations

Based on the measured FPS data, the only configuration that delivers a consistently playable experience is 1920x1080 with Low settings, which achieves an average of 76 FPS. This is the sole setting combination that approaches the 60 FPS threshold for smooth gameplay, and it should be the default recommendation for any user attempting to play Rust on this hardware. The 1080p Medium preset, with an average of 51 FPS and a minimum of 44 FPS, is the next best option, but the frame rate dips below 60 FPS may cause noticeable stuttering in fast-paced combat scenarios.

At 2560x1440, no settings preset achieves a playable frame rate. The Low preset yields 53 FPS average, which is borderline, but the Medium preset drops to 35 FPS average with a 30 FPS minimum, making it unsuitable for anything beyond casual exploration. Users with 1440p monitors should strongly consider lowering their display resolution to 1080p to gain any meaningful performance improvement. The 4K resolution is entirely impractical, with even the Low preset producing only 31 FPS average, which is below the minimum threshold for interactive gameplay.

For users who prioritize visual quality over frame rate, the 1080p High preset at 43 FPS average may be acceptable for solo play or building, but it will struggle in large player interactions. The 1080p Ultra preset at 33 FPS average is not recommended, as the visual improvements over High are minimal while the performance penalty is significant. The data shows a clear trade-off: Low settings at 1080p offer the best playability, while any attempt to increase visual fidelity or resolution results in frame rates that fall below acceptable levels. The recommendation is to run Rust at 1080p Low settings and accept the reduced visual quality, as this is the only configuration that allows the game to be played with reasonable responsiveness.