Rust

How This Combo Ranks

The Intel Core i9-14900K paired with the Intel Arc B390 lands at rank 3312 out of 3723 tested combinations in the database for Rust. That places this combo in the lower 11th percentile of all recorded system pairings, which is a striking result given the CPU's standing. The i9-14900K alone sits at the 95th percentile among all CPUs, with an average benchmark score of 79097. The bottleneck is clearly the graphics side: the Arc B390 rests at just the 9th percentile among all GPUs, with an average score of 1482 from the 3DMark Steel Nomad DX12 test.

The data suggests a massive imbalance. The CPU is among the fastest desktop processors ever recorded, while the GPU performs closer to entry-level integrated graphics from over a decade ago. In fact, the Arc B390's nearest GPU rivals are the NVIDIA GeForce GT 520MX (1.3% faster), the NVIDIA GeForce 800M (1.5% faster), the NVIDIA GeForce GT 625 OEM (2.5% faster), and the NVIDIA GeForce GT 710 (2.7% faster). These are all legacy or low-end mobile/desktop parts, which underscores how far the Arc B390 trails modern gaming GPUs.

For Rust specifically, the combo's rank of 3312 out of 3723 indicates that the vast majority of other CPU-GPU pairings in the database deliver higher frame rates. The CPU's 24 cores, 32 threads, and 6.00 GHz boost clock do not translate into playable performance when the GPU cannot keep up with the rendering load. This is a case where the recorded data shows a clear ceiling imposed by the graphics subsystem, regardless of the processor's immense computational headroom.

Best Settings per Resolution

At 3840x2160 (4K), no preset reaches the 60 FPS playability threshold. The highest recorded average is 31 FPS at Low settings, followed by 21 FPS at Medium, 18 FPS at High, and 13 FPS at Ultra. None of these are close to 60 FPS, so the database does not list a best playable setting for 4K.

At 2560x1440 (1440p), the situation is similar. Low settings produce an average of 53 FPS, but that still falls short of the 60 FPS threshold. Medium averages 35 FPS, High averages 30 FPS, and Ultra averages 23 FPS. The verdict records no playable settings at this resolution.

At 1920x1080 (1080p), there is exactly one playable preset: Low. This setting achieves an average of 76 FPS, which clears the 60 FPS bar with a 16 FPS margin. Medium falls just short at 51 FPS, High drops to 43 FPS, and Ultra averages 33 FPS. The database identifies Low as the best and only playable setting at 1080p, with that 76 FPS average.

CPU and GPU Roles

The benchmark results indicate that the GPU is the dominant constraint at every resolution. Consider the scaling from 1080p Low to 4K Low: the average FPS drops from 76 to 31, a 59% reduction. Meanwhile, the CPU workload in Rust at Low settings is relatively modest, so the i9-14900K's 24 cores are largely idle while the Arc B390 struggles to fill frames.

The GPU's role becomes even clearer when comparing presets at a fixed resolution. At 1080p, moving from Low to Medium drops the average from 76 to 51 FPS (a 33% loss), and from Low to High it falls to 43 FPS (a 43% loss). This is classic GPU-bound behavior: the graphics card's limited shading units (1536), texture mapping units (48), and raster operation units (24) cannot handle increased pixel and texture loads. The Arc B390's 7.680 TFLOPS of FP32 performance and 60.00 GPixel/s pixel rate are simply insufficient for higher presets.

At 1440p, the same pattern holds. Low averages 53 FPS, Medium 35 FPS, High 30 FPS, and Ultra 23 FPS. The GPU's memory bandwidth is listed as "System Dependent" since it uses shared system memory, which further limits performance at higher resolutions where memory traffic increases. The CPU, by contrast, shows no signs of being a bottleneck: its single-thread performance (2262.5 in Cinebench R23 single-core, 4697 in Passmark single-thread) is far above what Rust requires, and its multi-thread scores (39399.5 in Cinebench R23 multi-core) are equally excessive for this workload.

The data implies that upgrading the GPU would yield dramatic gains, while the CPU would remain underutilized. At 4K Ultra, the combo averages just 13 FPS, which is 83% lower than the 1080p Low result. This resolution scaling is entirely attributable to the GPU's inability to render at higher pixel counts. The CPU's role in this pairing is essentially passive: it provides enough processing power to avoid limiting the GPU, but the GPU caps every scenario far below playability except for 1080p Low.

FAQ

Q: Can this combo run Rust at 60 FPS on any setting?

A: Yes, but only at 1920x1080 with Low settings, where the recorded average is 76 FPS. At 2560x1440 and 3840x2160, no preset reaches 60 FPS.

Q: What is the best playable setting at 1440p?

A: There is no playable setting at 1440p. The highest average is 53 FPS at Low, which is below the 60 FPS threshold. Medium averages 35 FPS, High 30 FPS, and Ultra 23 FPS.

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

A: The Arc B390's closest rivals are the NVIDIA GeForce GT 520MX (1.3% faster), GeForce 800M (1.5% faster), GeForce GT 625 OEM (2.5% faster), and GeForce GT 710 (2.7% faster). These are all very low-end parts, indicating the Arc B390 sits at the bottom of the GPU performance spectrum.

Q: Is the i9-14900K a strong CPU for gaming?

A: Yes, the CPU ranks at the 95th percentile among all CPUs with an average benchmark score of 79097. Its nearest rivals include the Intel Core i9-14900KF (0.3% faster), Intel Core Ultra 9 290HX Plus (0.6% faster), AMD EPYC 7413 (1.2% faster), and AMD Ryzen AI Max+ 395 (1.7% slower). However, this strength does not help in Rust because the GPU limits frame rates.

Q: What is the frame rate difference between 1080p Low and 4K Low?

A: The average FPS drops from 76 at 1080p Low to 31 at 4K Low, a 59% reduction. This demonstrates how severely the GPU struggles as resolution increases.

Q: Does the combo meet the 60 FPS threshold at 1080p Medium?

A: No, 1080p Medium averages 51 FPS, which is 9 FPS below the threshold. The minimum recorded at that setting is 44 FPS and the maximum is 59 FPS, so it never reaches 60 FPS in the measured data.

Measured FPS Breakdown

At 3840x2160, the recorded averages are 31 FPS for Low, 21 FPS for Medium (with a minimum of 18 and maximum of 24), 18 FPS for High, and 13 FPS for Ultra. The Medium setting is the only one with min/max values recorded; the others have null values in the database.

At 2560x1440, Low averages 53 FPS, Medium averages 35 FPS (minimum 30, maximum 41), High averages 30 FPS, and Ultra averages 23 FPS. Again, only Medium has complete min/max data.

At 1920x1080, the results are more varied. Low averages 76 FPS, Medium averages 51 FPS (minimum 44, maximum 59), High averages 43 FPS, and Ultra averages 33 FPS. The Medium setting at 1080p shows the tightest range of all recorded presets: a 15 FPS spread between minimum and maximum.

The progression across resolutions follows a consistent pattern. At Low settings, the averages are 76, 53, and 31 FPS for 1080p, 1440p, and 4K respectively. At Medium, they are 51, 35, and 21. At High, they are 43, 30, and 18. At Ultra, they are 33, 23, and 13. Every preset sees roughly a 30-40% drop when moving from 1080p to 1440p, and another 35-40% drop from 1440p to 4K. This uniform scaling reinforces that the GPU is the sole limiting factor.

The Verdict

The recorded data answers clearly: this PC can run Rust, but only at 1920x1080 with Low settings. The verdict by resolution confirms that 1080p Low is the sole playable configuration, delivering an average of 76 FPS against the 60 FPS threshold. At 1080p Medium, the average drops to 51 FPS, which is below the threshold and therefore not classified as playable. High and Ultra at 1080p produce 43 and 33 FPS respectively, both unplayable.

At 2560x1440 and 3840x2160, the database records no playable settings. The best case at 1440p is Low at 53 FPS, and at 4K it is Low at 31 FPS. Neither reaches the 60 FPS bar. For anyone targeting 1440p or 4K gaming, this combo would require a different GPU to become viable. The i9-14900K is more than capable, but the Arc B390's performance ceiling makes higher resolutions impractical. The verdict is that this system is a 1080p Low machine for Rust, nothing more.

Similar Performance Alternatives

Looking at the CPU's nearest rivals, the Intel Core i9-14900KF performs nearly identically, with an average score of 79371 versus the i9-14900K's 79097, a delta of -0.3%. The Intel Core Ultra 9 290HX Plus scores 79574 (-0.6%), the AMD EPYC 7413 scores 80041 (-1.2%), and the AMD Ryzen AI Max+ 395 scores 77740 (1.7% slower). Any of these CPUs paired with the same Arc B390 GPU would produce essentially the same Rust frame rates, since the GPU is the bottleneck. The Ryzen AI Max+ 395 would be slightly slower in CPU-bound tasks, but that difference would not show up in Rust's measured FPS at these settings.

On the GPU side, the nearest rivals are all far below modern gaming standards. The NVIDIA GeForce GT 520MX is 1.3% faster, the GeForce 800M is 1.5% faster, the GeForce GT 625 OEM is 2.5% faster, and the GeForce GT 710 is 2.7% faster. Swapping the Arc B390 for any of these would yield nearly identical Rust performance, meaning the same 1080p Low limitation. The delta percentages are small enough that the playability verdict would not change: only 1080p Low would remain above 60 FPS.

For users considering alternatives, the data suggests that the CPU choice has little impact on Rust FPS with this GPU class, while the GPU choice is everything. A different GPU at a higher performance tier would be the only meaningful upgrade path. The i9-14900K's 24 cores and 32 threads are far beyond what Rust needs at Low settings, so the processor's nearest rivals would all behave the same in this specific game. The Arc B390's nearest rivals would also behave the same, which means this entire hardware cluster sits in the same unplayable-at-1440p category.