Doom

The AMD Ryzen 5 7400F paired with the Intel Arc B390 produces a combination that is heavily limited by its graphics processor in Doom, resulting in a playable experience only at lower resolutions and settings. The data shows a 1080p Low preset delivering 107 FPS average, while the 4K Ultra preset drops to just 22 FPS, indicating that the Arc B390, which ranks in the 9th percentile among all GPUs, is the primary bottleneck. For this specific combo, the most balanced experience is found at 1080p Medium, which offers 93 FPS average with a minimum of 79 FPS, providing a smooth frame rate without sacrificing the visual quality gains over the Low preset.

Settings Recommendations

The measured FPS data across all resolution and settings combinations clearly indicates that the Ultra preset is generally not viable for this configuration. At 1080p, the Ultra preset produces an average of 64 FPS, which is playable but represents a significant 33% performance drop from the Medium preset's 93 FPS. At 1440p, the Ultra preset falls to 41 FPS, which is below the threshold for smooth gameplay, and at 4K it becomes unplayable at 22 FPS. The data suggests that the visual fidelity gains from Ultra do not justify the substantial performance cost, especially when the Medium preset at 1080p delivers a much higher frame rate.

The Low preset provides the highest frame rates across all resolutions, with 107 FPS at 1080p, 69 FPS at 1440p, and 37 FPS at 4K. However, the jump from Low to Medium at 1080p is a relatively modest 14% performance decrease (from 107 to 93 FPS), while the Medium preset offers noticeably better visual quality. This makes Medium the sweet spot for most users, as it maintains frame rates above 60 FPS at 1080p and remains playable at 1440p with 60 FPS average.

At 1440p, the Medium preset achieves 60 FPS average with a minimum of 51 FPS, which is borderline for fast-paced action. The High preset at 1440p drops to 51 FPS, which may cause noticeable stuttering in Doom's demanding combat sequences. For users with 1440p displays, the Low preset at 69 FPS provides the most consistent experience, while those prioritizing visual quality should consider 1080p Medium instead of sacrificing resolution.

The 4K resolution is not recommended for this combo, as even the Low preset only achieves 37 FPS, which is far below the smoothness required for a fast-paced FPS. The performance scaling from 1080p to 4K is severe, with the Low preset dropping from 107 to 37 FPS, a 65% reduction. This indicates that the Arc B390 is overwhelmed by the pixel count at 4K, and users should stick to 1080p or 1440p for any meaningful gameplay experience.

GPU Role

The Intel Arc B390 is the decisive performance limiter in this configuration. Its benchmark score of 1482 in 3DMark Steel Nomad DX12 places it in the 9th percentile among all GPUs, and its nearest rivals are the NVIDIA GeForce GT 520MX and GeForce 800M, which are extremely low-end parts. The Arc B390's boost clock of 2500 MHz and base clock of 300 MHz do little to compensate for its limited compute resources, which include 1536 shading units, 48 TMUs, and 24 ROPs. The GPU's FP32 performance is rated at 7.680 TFLOPS, but this theoretical peak is not realized in Doom's real-world rendering.

The GPU's memory configuration is "System Shared" with system-dependent bandwidth, which is a significant disadvantage for a game like Doom that requires high memory throughput. The lack of dedicated VRAM means the GPU must compete with the CPU for memory bandwidth, and the data reflects this limitation. The frame rate drops are consistent with a GPU that is starved for memory bandwidth, particularly at higher resolutions where the memory pressure increases dramatically.

The Arc B390's 12 ray tracing cores and support for DirectX 12 Ultimate do not provide any benefit in Doom, as the game does not use ray tracing. The GPU's pixel rate of 60.00 GPixel/s and texture rate of 120.0 GTexel/s are theoretical figures that are not achieved in practice, given the measured FPS. The 3DMark score of 1482 is nearly identical to the GT 520MX's 1463, with a delta of 1.3% in favor of the Arc B390, confirming that this GPU is only marginally faster than a decade-old entry-level mobile part.

The performance gap between the Arc B390 and its nearest rivals is minimal, with all deltas under 3%. This means the GPU's capabilities are firmly in the entry-level segment, and Doom's demanding rendering engine pushes it to its absolute limits. The 1080p Low preset at 107 FPS represents the ceiling of what this GPU can achieve, and any increase in graphical fidelity or resolution results in exponential performance degradation.

CPU Role

The AMD Ryzen 5 7400F is a vastly more capable component than the GPU it is paired with, and its performance headroom is largely wasted in this configuration. The CPU's 6 cores and 12 threads based on Zen 4 architecture run at a base clock of 3.70 GHz and a boost clock of 4.70 GHz, providing strong single-threaded and multi-threaded performance. In Cinebench R23, the CPU scores 21765 in multi-core and 3072 in single-core, placing it in the 83rd percentile among all CPUs.

The CPU's nearest rivals include the Intel Core i5-14600T with an average score of 32707 (0.1% delta) and the AMD Ryzen 7 PRO 6850H with an average score of 32812 (-0.2% delta). This places the 7400F in a competitive position among mid-range desktop and high-end mobile processors. The CPU's 32 MB of shared L3 cache and 1 MB per-core L2 cache provide ample cache for gaming workloads, and its memory bandwidth of 83.2 GB/s with DDR5 support is more than sufficient.

In Doom, the CPU's role is largely administrative, as the game's engine is not particularly CPU-intensive compared to other titles. The measured FPS data shows that the CPU is not the limiting factor at any resolution, as the frame rates scale consistently with GPU load. At 1080p Low, the 107 FPS average is well within the CPU's capability, and even the highest frame rate measured does not approach the CPU's maximum throughput.

The CPU's 65 W TDP and 5 nm process node indicate an efficient design, but this efficiency is irrelevant when the GPU is the bottleneck. The data shows that the CPU has significant headroom, as the frame rate differences between settings presets at the same resolution are entirely attributable to GPU load. The CPU's 83rd percentile ranking versus the GPU's 9th percentile ranking demonstrates a severe imbalance, with the CPU capable of supporting far more powerful graphics hardware.

How This Combo Ranks

The combination of the AMD Ryzen 5 7400F and Intel Arc B390 ranks 2580 out of 2930 tested combos in Doom, placing it in the bottom 12% of all configurations. This ranking is primarily driven by the GPU's poor performance, as the CPU is well above average. The combo's position in the database suggests that there are 2580 other CPU-GPU pairings that deliver better frame rates in this game, which is expected given the Arc B390's entry-level status.

The rank of 2580 out of 2930 means that the combo performs better than only 350 other combinations, most of which likely feature even older or more limited hardware. The data indicates that this combo is suitable for 1080p gaming at medium settings, but it will struggle with higher resolutions or demanding presets. The combo's performance is consistent with the GPU's 9th percentile ranking, confirming that the GPU is the primary determinant of the overall ranking.

The CPU's high percentile ranking (83rd) does not boost the combo's position, as the GPU bottleneck is absolute at all measured settings. The data shows that even at 1080p Low, where the CPU has the least work to do, the frame rate is 107 FPS, which while playable, is far below what the CPU could support with a better GPU. The combo's ranking would be significantly higher with a mid-range GPU, but the Arc B390's limitations are clearly reflected in the overall position.

The delta between the combo's rank and the total number of combos (2930) indicates that this pairing is in the bottom tier for Doom performance. Users with this configuration should expect to play at 1080p with reduced settings to achieve playable frame rates, and they should not expect to utilize high refresh rate monitors beyond 1080p. The ranking serves as a warning that the GPU is the weak link in this pairing.

Resolution Scaling

The frame rate scaling from 1080p to 4K in Doom reveals a severe GPU bottleneck that intensifies with resolution. At the Low preset, the average FPS drops from 107 at 1080p to 69 at 1440p (a 36% reduction) and then to 37 at 4K (a 65% reduction from 1080p). This scaling pattern is characteristic of a GPU that is limited by pixel throughput and memory bandwidth, as the workload increases quadratically with resolution.

The Medium preset shows a similar trend, with 93 FPS at 1080p, 60 FPS at 1440p, and 33 FPS at 4K. The percentage drop from 1080p to 1440p is 35%, and from 1080p to 4K is 65%, which is nearly identical to the Low preset's scaling. This consistency indicates that the GPU's performance is limited by its raw rendering capabilities rather than any specific setting, as the relative performance degradation is uniform across presets.

The High preset follows the same pattern with 78 FPS at 1080p, 51 FPS at 1440p, and 28 FPS at 4K. The drop from 1080p to 1440p is 35%, and from 1080p to 4K is 64%. The Ultra preset is the most demanding, with 64 FPS at 1080p, 41 FPS at 1440p, and 22 FPS at 4K, representing a 66% reduction from 1080p to 4K. This uniform scaling across all presets confirms that the resolution is the dominant factor in performance, not the graphical settings.

The data indicates that the CPU is not a limiting factor in resolution scaling, as the frame rate drops are entirely attributable to GPU load. If the CPU were the bottleneck, the frame rates would remain relatively constant across resolutions at the same settings, but the measured FPS shows a consistent decline with increasing pixel count. This confirms that the Arc B390 is the sole performance constraint, and users should prioritize resolution reduction over setting reduction for the best experience.

Measured FPS Breakdown

At 1920x1080, the measured average FPS ranges from 107 at Low to 64 at Ultra. The Low preset delivers 107 FPS average, which is the highest frame rate recorded for this combo. The Medium preset achieves 93 FPS average with a minimum of 79 FPS and a maximum of 107 FPS, providing a smooth experience with some headroom for demanding scenes. The High preset drops to 78 FPS average, while the Ultra preset falls to 64 FPS, which is the minimum recommended for playable performance.

At 2560x1440, the frame rates drop significantly across all presets. The Low preset achieves 69 FPS average, which is still playable but noticeably lower than 1080p. The Medium preset delivers 60 FPS average with a minimum of 51 FPS and a maximum of 69 FPS, which is borderline for a fast-paced FPS. The High preset drops to 51 FPS average, and the Ultra preset falls to 41 FPS, which is below the playable threshold for most users.

At 3840x2160, the performance is severely limited, with no preset achieving a playable frame rate. The Low preset delivers 37 FPS average, the Medium preset achieves 33 FPS average with a minimum of 28 FPS and a maximum of 37 FPS, the High preset drops to 28 FPS, and the Ultra preset falls to 22 FPS. These frame rates are too low for smooth gameplay in Doom, and the 4K resolution should be avoided entirely with this combo.

The Medium preset at each resolution shows the minimum and maximum FPS values, which are consistent with the average FPS. For example, at 1080p Medium, the minimum of 79 FPS and maximum of 107 FPS indicate a range of 28 FPS, suggesting some scene-to-scene variability. At 1440p Medium, the range is 18 FPS (51 to 69), and at 4K Medium, the range is 9 FPS (28 to 37). This decreasing variability at higher resolutions further confirms that the GPU is saturated and cannot maintain consistent frame delivery under heavy load.