Doom

The AMD Ryzen 5 8400F paired with the AMD Radeon RX 6750 XT delivers a robust Doom experience across all tested resolutions, with the data showing a clear GPU-bound pattern at higher settings and a CPU-bound ceiling only at 1080p Low. This combination ranks 1696th out of 3712 tested combos in this game, placing it in the upper half of the database’s tested configurations. The measured frames per second reveal a system that can handle 4K at playable rates, though the scaling from 1080p to 4K exposes where the hardware’s limits lie.

Resolution Scaling

The FPS drop from 1080p to 4K is substantial and consistent with a GPU-limited scenario at higher resolutions. At High settings, the average frame rate falls from 178 FPS at 1920x1080 to 115 FPS at 2560x1440, then further to 62 FPS at 3840x2160. That represents a 35.4% reduction when moving from 1080p to 1440p, and a further 46.1% reduction when moving from 1440p to 4K. The overall decline from 1080p to 4K at High settings is 65.2%, which is a steep curve that strongly indicates the Radeon RX 6750 XT is the primary limiting factor as pixel count rises.

At Low settings, the scaling pattern shifts revealingly. The average FPS at 1080p is 242, dropping to 156 at 1440p (a 35.5% decrease) and then to 85 at 4K (a 45.5% decrease from 1440p). The 1080p Low result of 242 FPS is notably higher than the 1080p High result of 178 FPS, a 35.9% improvement from lowering settings. This large gap at 1080p suggests that at Low settings and 1080p, the CPU begins to play a more significant role, as the GPU has more headroom to render frames quickly. The Ryzen 5 8400F’s 6 cores and 12 threads, with a boost clock of 4.70 GHz, are sufficient to push high frame rates, but the data shows diminishing returns beyond the 242 FPS mark.

Medium settings provide a middle ground in scaling. The average FPS at 1080p is 210, at 1440p it is 136, and at 4K it is 74. The percentage drops are 35.2% from 1080p to 1440p and 45.6% from 1440p to 4K, very similar to the High setting pattern. Ultra settings show the most aggressive scaling: 145 FPS at 1080p, 94 FPS at 1440p, and 51 FPS at 4K. The drop from 1080p to 1440p at Ultra is 35.2%, and from 1440p to 4K is 45.7%. The consistency of these percentage drops across settings—hovering around 35% for the first step and 45-46% for the second—confirms that resolution scaling is nearly uniform regardless of quality preset. This uniformity is a hallmark of GPU-bound performance, where the render resolution dominates the workload.

The minimum FPS data, available only for Medium settings, reinforces this interpretation. At 4K Medium, the minimum FPS is 63 with an average of 74, giving a narrow 14.9% gap between average and minimum. At 1440p Medium, the minimum is 116 against an average of 136, a 14.7% gap. At 1080p Medium, the minimum is 179 against an average of 210, a 14.8% gap. The consistent ratio between minimum and average FPS across resolutions indicates stable frame pacing without sudden drops, which is typical of a well-optimized game engine running on hardware that is not overtaxed in any single metric.

GPU Role

The Radeon RX 6750 XT’s specifications directly inform its performance in Doom. The GPU features 12 GB of GDDR6 memory on a 192-bit bus, providing 432.0 GB/s of bandwidth. This memory configuration is ample for Doom’s textures and assets at 4K, as evidenced by the playable 62 FPS average at High settings. The card’s base clock is 2150 MHz, with a boost clock of 2600 MHz and a game clock of 2495 MHz. These clock speeds, combined with 2560 shading units and 160 texture mapping units, deliver the raw throughput needed for the game’s fast-paced rendering.

The GPU’s 40 ray accelerators and RDNA 2.0 architecture support DirectX 12 Ultimate, which Doom can leverage for advanced effects. However, the measured data does not separate ray-traced performance, so the analysis focuses on rasterized results. The 64 ROPs produce a pixel rate of 166.4 GPixel/s, which is a key factor in the 4K performance. At 4K, the GPU must fill approximately 8.3 million pixels per frame, and the 166.4 GPixel/s rate translates to a theoretical maximum of about 20 FPS if pixel fill were the only constraint—clearly not the case, as other factors like shader work and memory bandwidth dominate.

The 13.31 TFLOPS of FP32 compute is the more relevant metric for Doom’s rendering. At 4K High with 62 FPS, the GPU is utilizing a significant portion of its compute capacity. The scaling from 1080p to 4K shows that as resolution increases, the GPU’s compute units become the bottleneck. The RX 6750 XT’s 250 W TDP and dual-slot design with a 600 W suggested PSU indicate it is a mid-range power draw, but this does not directly translate to performance in the measured data.

Comparing to nearest rivals, the RX 6750 XT has an average benchmark score of 26011, which is 0.5% higher than the AMD Radeon R9 M395X (25891), 0.6% higher than the AMD FirePro W7100 (25856), 0.7% higher than the AMD FirePro D700 (25842), and 1.1% higher than the NVIDIA GeForce RTX 3080 Ti Mobile (25740). These deltas are small, indicating that the RX 6750 XT sits in a tight performance cluster. In Doom specifically, the measured FPS shows the GPU’s strength at 1440p and 1080p, where it delivers well above 100 FPS on High settings.

The CPU’s role is secondary but not negligible. The Ryzen 5 8400F’s 16 MB of shared L3 cache and 83.2 GB/s memory bandwidth support the GPU by feeding data efficiently. Its 3DMark single-thread score of 951 and multithread score of 6165 (max threads) indicate solid processing power. The CPU’s passmark single-thread score of 3685 places it in the 77th percentile of all CPUs, which is respectable for gaming. However, the data shows that at 1080p Low, the FPS reaches 242, which is likely near the CPU’s maximum frame delivery capability in Doom. Beyond this, the GPU would need to work harder, but the resolution and settings scaling suggest the CPU is not the primary limiter until very high frame rates are reached.

FAQ

Q: What is the average FPS at 4K with High settings?

A: The measured average FPS at 3840x2160 with High settings is 62 FPS, which is playable for most users. The minimum and maximum FPS were not recorded for this configuration, but the average indicates a stable experience.

Q: How much faster is 1080p compared to 4K at the same settings?

A: At High settings, the average FPS at 1920x1080 is 178, while at 3840x2160 it is 62. This represents a 65.2% reduction in frame rate when moving from 1080p to 4K, highlighting the GPU’s increasing workload at higher resolutions.

Q: Does lowering settings from Ultra to Low at 1080p improve FPS significantly?

A: Yes. At 1920x1080, the average FPS at Ultra is 145, while at Low it is 242. This is a 66.9% improvement in frame rate, showing that settings have a major impact on performance at this resolution.

Q: What is the minimum FPS recorded in any configuration?

A: The lowest minimum FPS recorded is 63 FPS, which occurs at 3840x2160 with Medium settings. The average for that configuration is 74 FPS, so the minimum is still above 60 FPS, indicating no severe frame drops.

Q: How does this combo rank among all tested combinations in Doom?

A: The AMD Ryzen 5 8400F and AMD Radeon RX 6750 XT combination ranks 1696th out of 3712 tested combos. This places it in the 45.7th percentile, meaning it outperforms approximately 54.3% of tested configurations.

Q: Is the GPU or CPU the limiting factor at 4K Ultra?

A: At 3840x2160 with Ultra settings, the average FPS is 51. The steep scaling from 1080p Ultra (145 FPS) to 4K Ultra (51 FPS) indicates the GPU is the primary bottleneck, as the CPU’s workload does not increase with resolution to the same degree.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of performance across three resolutions and four settings presets. At 1920x1080, the lowest setting of Low delivers an average of 242 FPS, which is the highest recorded in any configuration. Medium settings at 1080p yield an average of 210 FPS, with a minimum of 179 FPS and a maximum of 242 FPS. High settings at 1080p produce an average of 178 FPS, and Ultra settings drop to an average of 145 FPS. The progression from Low to Ultra at 1080p shows a 40.1% decrease in average FPS, from 242 to 145.

At 2560x1440, the performance scales down predictably. Low settings achieve an average of 156 FPS, Medium settings reach 136 FPS with a minimum of 116 FPS and a maximum of 157 FPS, High settings produce 115 FPS, and Ultra settings average 94 FPS. The gap between Low and Ultra at 1440p is 39.7%, from 156 to 94 FPS, which is nearly identical to the percentage drop at 1080p. This consistency suggests that the settings presets affect the GPU workload proportionally across resolutions.

At 3840x2160, the performance is lower but still playable. Low settings average 85 FPS, Medium settings average 74 FPS with a minimum of 63 FPS and a maximum of 85 FPS, High settings average 62 FPS, and Ultra settings drop to 51 FPS. The difference between Low and Ultra at 4K is 40.0%, from 85 to 51 FPS, again matching the pattern seen at lower resolutions. The absolute numbers show that even at 4K Ultra, the combo maintains an average above 50 FPS, which is sufficient for a smooth experience in a fast-paced FPS.

The minimum FPS data, only available for Medium settings, shows that the lowest recorded minimum is 63 FPS at 4K. At 1440p, the minimum is 116 FPS, and at 1080p, it is 179 FPS. These minimums are all well above 60 FPS, indicating that the frame rate does not dip into unplayable territory even in demanding scenes. The maximum FPS for Medium settings is 85 at 4K, 157 at 1440p, and 242 at 1080p, showing a wide range that reflects the variability of in-game scenes.

For High and Ultra settings, the lack of minimum and maximum data means only averages are available. The averages alone suggest that the combo is capable of handling Doom at all tested resolutions, with the caveat that 4K Ultra at 51 FPS is the weakest point. Users targeting a locked 60 FPS would need to use High settings at 4K (62 FPS average) or drop to 1440p where all settings exceed 94 FPS.

How This Combo Ranks

The combo’s rank of 1696 out of 3712 tested combos places it in the 45.7th percentile in Doom. This is a mid-pack ranking, suggesting that while the hardware is capable, there are many combinations that perform better in this specific game. The ranking is based on measured FPS data, which includes the averages across all resolutions and settings, so it reflects overall capability rather than a single configuration.

The CPU’s individual performance metrics provide context for this ranking. The Ryzen 5 8400F has an average benchmark score of 25005, placing it in the 77th percentile of all CPUs. Its nearest rival, the AMD Ryzen 5 7500F, has an average score of 24964, which is 0.2% lower. The Intel Core i7-11850H scores 24935 (0.3% lower), the Intel Core i7-13620H scores 24911 (0.4% lower), and the AMD EPYC 9474F scores 25103 (0.4% higher). These deltas are all under half a percent, meaning the CPU is essentially on par with its closest competitors in synthetic benchmarks.

The GPU’s ranking is lower relative to its peers. The RX 6750 XT has an average benchmark score of 26011, placing it in the 71st percentile of all GPUs. Its nearest rivals include the AMD Radeon R9 M395X at 25891 (0.5% lower), the AMD FirePro W7100 at 25856 (0.6% lower), the AMD FirePro D700 at 25842 (0.7% lower), and the NVIDIA GeForce RTX 3080 Ti Mobile at 25740 (1.1% lower). The GPU’s score is higher than all of these, but the differences are small, indicating a tight performance cluster.

In Doom specifically, the combo’s rank of 1696 out of 3712 suggests that the game’s optimization favors certain hardware configurations. The 1080p results, particularly at Low and Medium settings, are strong, with 242 and 210 FPS respectively. However, the 4K results, especially at Ultra (51 FPS), pull the overall rank down. The combo’s mid-pack placement reflects a balance between high performance at lower resolutions and moderate performance at higher resolutions.

The percentile positions of the CPU (77th) and GPU (71st) are higher than the combo’s percentile in Doom (45.7th). This discrepancy suggests that Doom’s workload does not scale perfectly with the hardware’s synthetic benchmark strengths. The game may be more sensitive to specific aspects of the hardware, such as memory bandwidth or cache size, which are not fully captured by average benchmark scores.

Settings Recommendations

For users prioritizing high frame rates, the data clearly points to 1080p with Low settings, which yields 242 FPS. This is the highest measured average and is ideal for competitive play or high-refresh-rate monitors. At 1440p, Low settings provide 156 FPS, which is also excellent for fast-paced gameplay. For a balance between visual quality and performance, Medium settings at 1440p deliver 136 FPS with a minimum of 116 FPS, ensuring no drops below 60 FPS.

At 4K, the recommendation depends on the user’s tolerance for frame rate variation. High settings at 4K produce an average of 62 FPS, which is just above the 60 FPS threshold. Medium settings at 4K average 74 FPS with a minimum of 63 FPS, providing a more consistent experience with a 14.9% gap between average and minimum. Low settings at 4K reach 85 FPS, but the visual fidelity is significantly reduced. Ultra settings at 4K should be avoided if smooth gameplay is a priority, as the 51 FPS average may result in noticeable stutter in fast-moving scenes.

The Medium preset emerges as the most balanced option across all resolutions. At 1080p, it offers 210 FPS with a minimum of 179 FPS; at 1440p, it offers 136 FPS with a minimum of 116 FPS; and at 4K, it offers 74 FPS with a minimum of 63 FPS. This preset provides the only configuration with minimum FPS data, and the minimums are consistently above 60 FPS, which is a strong indicator of stable performance. The High preset is a close second, but without minimum FPS data, its stability cannot be confirmed.

For users with a 144 Hz monitor, the 1440p Medium setting (136 FPS) is the best choice, as it approaches the refresh rate while maintaining visual quality. For 60 Hz displays, 4K High (62 FPS) or 4K Medium (74 FPS) are both viable, with Medium offering more headroom. The data does not support using Ultra at any resolution if frame rate is a concern, as even at 1080p, Ultra drops to 145 FPS, which is a 31.0% reduction from High settings.

The combo’s performance in Doom is strongest at 1080p and 1440p, where it delivers high frame rates across all settings. At 4K, the GPU becomes the limiting factor, but with Medium settings, the experience remains smooth. The ranking of 1696th out of 3712 combos indicates that this hardware is a capable choice for Doom, though not at the top tier of tested configurations.