Undisputed

Measured FPS Breakdown

The recorded data for Undisputed with the AMD Ryzen 5 8400F and Intel Arc B390 spans three resolutions and four quality presets. The measurements show a clear performance ceiling that shifts dramatically depending on the resolution selected.

At 1920x1080, the combo delivers its strongest results. Low settings produce an average of 127 FPS, which is the highest average recorded across the entire test matrix. Medium settings drop to 91 FPS, with a minimum of 78 FPS and a maximum of 105 FPS. High settings average 76 FPS. Ultra is the only preset at this resolution that falls below the 60 FPS playability threshold, averaging 49 FPS.

Moving to 2560x1440, the performance drops are substantial. Low settings average 92 FPS, still comfortably above the playability threshold. Medium settings average 66 FPS, with a minimum of 56 FPS and a maximum of 76 FPS. High settings fall to 55 FPS, which is below the 60 FPS line. Ultra averages just 35 FPS, a steep decline from the 49 FPS seen at 1080p Ultra.

At 3840x2160, the Arc B390 struggles across the board. Low settings average 58 FPS, narrowly missing the 60 FPS threshold. Medium settings average 42 FPS, with a minimum of 36 FPS and a maximum of 48 FPS. High settings average 35 FPS. Ultra averages 22 FPS, the lowest figure recorded in the entire dataset. No preset at 4K reaches the playability threshold.

The min and max values are only recorded for Medium settings at each resolution. At 1080p Medium, the spread from 78 to 105 FPS represents a 27 FPS range. At 1440p Medium, the spread narrows to 20 FPS, from 56 to 76. At 4K Medium, the spread tightens further to 12 FPS, from 36 to 48. This suggests that as resolution increases, frame pacing becomes more constrained, likely due to the GPU reaching its rendering limits.

CPU and GPU Roles

The data reveals a system that is heavily GPU-bound at higher resolutions, but the CPU still plays a meaningful role at lower settings. The Ryzen 5 8400F, with 6 cores and 12 threads, is a capable Zen 4 part, but the Arc B390 is clearly the limiting factor when resolution increases.

The scaling between 1080p and 1440p at Low settings shows a drop from 127 FPS to 92 FPS, a 27.5% reduction. Between 1440p and 4K at Low settings, the drop is from 92 FPS to 58 FPS, a 37% reduction. These steep declines indicate that the GPU is saturated well before the CPU becomes a constraint. The CPU is likely capable of pushing more frames at 1080p, but the Arc B390 cannot deliver them.

At Medium settings, the scaling is similar. 1080p Medium averages 91 FPS, 1440p Medium drops to 66 FPS, and 4K Medium falls to 42 FPS. The consistent pattern across presets suggests that the GPU's rendering throughput is the dominant factor at every resolution above 1080p.

The CPU's role becomes more apparent when comparing presets at the same resolution. At 1080p, moving from Low to Medium reduces the average from 127 FPS to 91 FPS, a 28% drop. Moving from Medium to High reduces it further to 76 FPS. These preset changes affect both CPU and GPU workload, but the relatively small gaps between Medium and High (91 to 76 FPS) suggest that the CPU is keeping pace with the GPU's demands.

At 4K, the preset scaling shows a different story. Low averages 58 FPS, Medium drops to 42 FPS, High to 35 FPS, and Ultra to 22 FPS. The gap between High and Ultra at 4K is 13 FPS, the largest single-preset gap in the entire dataset. This indicates that Ultra settings introduce effects that disproportionately burden the GPU's limited resources.

The CPU's 3DMark scores provide context for its capability. The single-thread score of 951 and the 16-thread score of 6091 suggest a processor that should not bottleneck a GPU in most scenarios. However, the Arc B390's percentile ranking of 9 among all GPUs confirms that it is a low-end part. The data points to a configuration where the GPU is the definitive bottleneck at 1440p and 4K, with the CPU only potentially mattering at 1080p Low where the GPU briefly keeps up.

How This Combo Ranks

The AMD Ryzen 5 8400F and Intel Arc B390 combination ranks 3304 out of 3718 tested combos in Undisputed. This places it in the bottom 11% of all configurations in the database. The percentile ranking of the GPU alone, 9 out of 100, is the primary reason for this low position. The CPU, by contrast, ranks at the 77th percentile among all CPUs, showing a stark mismatch in capability between the two components.

The combo's rank suggests that while the CPU is a mid-range part with solid multi-threaded performance, the GPU drags the overall experience down. The 3DMark Steel Nomad DX12 score of 1482 for the Arc B390 is modest, and its nearest GPU rivals include the NVIDIA GeForce GT 520MX, GeForce 800M, GT 625 OEM, and GT 710. These are all legacy or entry-level parts, which explains why the combo sits so low in the overall rankings.

The CPU's nearest rivals include the AMD Ryzen 5 7500F, Intel Core i7-11850H, Intel Core i7-13620H, and AMD EPYC 9474F. The Ryzen 5 8400F is within 0.4% of each of these in average benchmark score, confirming that it is a well-balanced processor. But no amount of CPU headroom can compensate for a GPU that ranks in the 9th percentile.

FAQ

Q: Can this combo run Undisputed at 1080p with High settings?

A: Yes. The recorded average at 1920x1080 High is 76 FPS, which is above the 60 FPS playability threshold.

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

A: Medium settings at 2560x1440 deliver an average of 66 FPS, with a minimum of 56 FPS and a maximum of 76 FPS. This is the highest preset that stays above 60 FPS at this resolution.

Q: Is 4K playable with any settings?

A: No. The highest average at 3840x2160 is 58 FPS on Low settings, which falls just short of the 60 FPS threshold. Medium, High, and Ultra all average below 42 FPS.

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

A: The Arc B390 scores 1482 in 3DMark Steel Nomad DX12. It is 1.3% ahead of the NVIDIA GeForce GT 520MX, 1.5% ahead of the GeForce 800M, 2.5% ahead of the GT 625 OEM, and 2.7% ahead of the GT 710.

Q: Does the CPU bottleneck the GPU in this game?

A: The data suggests the GPU is the limiting factor at 1440p and 4K, where frame rates drop sharply regardless of preset. The CPU's benchmark scores are strong, and its nearest rivals are within 0.4% of its average score, indicating that the processor is not the constraint.

Q: What frame rates can be expected at 1080p Ultra?

A: The average at 1920x1080 Ultra is 49 FPS, which is below the 60 FPS playability threshold. This preset is not considered playable according to the database.

Similar Performance Alternatives

For the CPU, the nearest rivals in the database are all within a narrow performance band. The AMD Ryzen 5 7500F has an average score of 24964, just 0.2% below the Ryzen 5 8400F's 25005. The Intel Core i7-11850H scores 24935, 0.3% lower. The Intel Core i7-13620H scores 24911, 0.4% lower. The AMD EPYC 9474F scores 25103, which is 0.4% higher. Any of these processors would deliver nearly identical frame rates in Undisputed when paired with the same GPU.

For the GPU, the nearest rivals are considerably weaker than the Arc B390, despite the small percentage differences. The NVIDIA GeForce GT 520MX scores 1463, 1.3% lower. The GeForce 800M scores 1460, 1.5% lower. The GT 625 OEM scores 1446, 2.5% lower. The GT 710 scores 1443, 2.7% lower. These parts would all perform slightly worse in Undisputed, meaning the Arc B390 is the strongest option among its immediate peers, but the entire group sits at the bottom of the GPU performance hierarchy.

The practical implication is that users with any of these alternative GPUs would see nearly identical frame rates, all of which would struggle to maintain 60 FPS at 1440p and above. The CPU alternatives, on the other hand, would not change the gaming experience at all, since the GPU remains the bottleneck in every scenario except possibly 1080p Low.

Best Settings per Resolution

At 1920x1080, the most demanding preset that stays at or above 60 FPS is High, with an average of 76 FPS. This is the recommended setting for a smooth experience at this resolution. Low and Medium also exceed the threshold, with 127 FPS and 91 FPS respectively, but High offers the best visual quality among the playable options.

At 2560x1440, the most demanding playable preset is Medium, with an average of 66 FPS. The minimum of 56 FPS dips slightly below the threshold, but the average remains above 60 FPS. Low averages 92 FPS and is also playable, but Medium provides better visuals while maintaining a playable average.

At 3840x2160, no preset reaches the 60 FPS threshold. Low comes closest with 58 FPS, but it still falls short. The database does not list a best setting for 4K because no option is playable. Users targeting 4K would need to consider a different GPU.

The Verdict

The AMD Ryzen 5 8400F and Intel Arc B390 can run Undisputed, but the experience depends heavily on resolution and settings. At 1080p, the combo clears the 60 FPS threshold on Low, Medium, and High settings, with High being the best visual option at 76 FPS average. At 1440p, Low and Medium are playable, with Medium averaging 66 FPS. At 4K, no settings are playable, as even Low averages only 58 FPS.

The verdict by resolution is clear: 1080p offers three playable presets, 1440p offers two, and 4K offers none. The GPU is the limiting factor throughout, and users seeking higher frame rates at 1440p or any playability at 4K would need a more powerful graphics card. For 1080p gaming, this combo is adequate, and for 1440p Medium, it is serviceable. For 4K, it is not a viable option.