Doom

The configuration examined here is the Intel Core i5-10400F paired with the AMD Radeon RX 6800 XT in Doom, a 2016 FPS. The measured FPS set covers 1920x1080, 2560x1440, and 3840x2160, each with Low, Medium, High, and Ultra settings. The data is measured rather than estimated, and the combination ranks 612th out of 1681 tested combos for this game. The headline results range from 264.3 fps at 1080p Low down to 61.5 fps at 4K Ultra.

Resolution Scaling

The FPS envelope shifts downward as the resolution increases, and the shape of that shift identifies where the bottleneck sits. At 1920x1080, Low produces 264.3 fps, Medium 253.9 fps, High 213.2 fps, and Ultra 176.9 fps. At 2560x1440, the same settings produce 185.6 fps, 162.1 fps, 141.1 fps, and 111.8 fps. At 3840x2160, they produce 101.1 fps, 90.6 fps, 76.1 fps, and 61.5 fps. The FPS drop from 1080p to 4K is steep, especially when comparing the Low presets: 264.3 fps at 1080p Low falls to 101.1 fps at 4K Low. This is a pixel-load-driven decline rather than a CPU-driven one.

The 1080p results show a compressed range between Low and Medium, with only a small margin between 264.3 fps and 253.9 fps. That near-flat step suggests the system is hitting an upper throughput limit at the least demanding settings, most likely from CPU or engine overhead. Beyond that point, increasing the settings to High and Ultra produces a clearer FPS cost, with 213.2 fps and 176.9 fps respectively. At 1440p, every preset remains above 100 fps, and the gap between Low and Ultra stretches from 185.6 fps to 111.8 fps. At 4K, the same span is 101.1 fps to 61.5 fps, with Ultra the only point that approaches the lower edge of the measured range.

The resolution scaling pattern indicates that the GPU becomes the dominant limiter as pixel count rises. If the CPU were the limiting component, the 1080p-to-1440p transition would leave FPS more stable; instead, the average FPS drops substantially at every settings tier between 1440p and 4K. The matching drop across all four presets at each resolution is consistent with a GPU-bound workload at higher resolutions.

GPU Role

The AMD Radeon RX 6800 XT is based on RDNA 2.0 and ships with 16 GB of GDDR6 memory on a 256-bit bus. Memory bandwidth is 512.0 GB/s, and the memory clock is listed at 2000 MHz with 16 Gbps effective. The GPU has a base clock of 1825 MHz, a game clock of 2015 MHz, and a boost clock of 2250 MHz. It also has 4608 shading units, 288 TMUs, and 128 ROPs. The RX 6800 XT launch MSRP is 649 USD.

These specifications line up with the Doom measurements. The 16 GB frame buffer is not a limiting factor in the measured data; 4K Ultra still returns 61.5 fps, and 4K Low reaches 101.1 fps. The memory bandwidth of 512.0 GB/s and the 256-bit bus provide enough throughput for the high-resolution settings. The game clock of 2015 MHz sits between the base and boost figures, and the measured FPS reflects a GPU running in its expected operating range.

The GPU’s broader benchmark profile also supports the Doom result. It sits at the 87th percentile for all GPUs, with an average benchmark score of 49982. Its nearest rivals are tightly clustered: the Intel Arc A550M scores 49737 with a delta of 0.5, the NVIDIA RTX A1000 scores 50826 with a delta of -1.7, the NVIDIA CMP 50HX scores 49071 with a delta of 1.9, and the NVIDIA GeForce RTX 4070 Ti SUPER scores 48704 with a delta of 2.6. In aggregate GPU score, the RX 6800 XT is effectively inside a four-way fight. The Doom FPS data confirms that it operates at a high level in this title, with 4K High and 4K Ultra remaining well above 60 fps.

CPU Role

The Intel Core i5-10400F is a 6-core/12-thread Comet Lake desktop processor with a base clock of 2.90 GHz and a boost clock of 4.30 GHz. It has 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 12 MB of shared L3 cache. Memory support is DDR4 through a dual-channel interface with 42.7 GB/s bandwidth. The CPU ranks at the 73rd percentile versus all CPUs, with an average benchmark score of 14168.

Synthetic CPU results show balanced performance. Cinebench R23 multicore is 10297 and single-core is 1453. Geekbench multicore is 5783 and single-core is 1454. PassMark multithread is 12115 and single-thread is 2541. These numbers indicate enough per-core strength for high-refresh FPS workloads. In Doom, the clearest evidence is the 1080p Low and Medium results of 264.3 fps and 253.9 fps. Those two settings produce nearly identical average FPS, which suggests the system is reaching an upper boundary that is no longer purely a GPU limitation. At 1080p High and Ultra, the GPU takes more of the load, dropping the average to 213.2 fps and 176.9 fps.

The CPU’s closest rivals in aggregate benchmark score are the AMD EPYC 7552 at 14115 with a delta of 0.4, the AMD Ryzen 3 7320C at 14277 with a delta of -0.8, the Intel Core i5-8500 at 14332 with a delta of -1.1, and the AMD Ryzen Embedded V2546 at 14336 with a delta of -1.2. All four sit within 1.2% of the i5-10400F’s average score. This places the CPU in a tightly contested performance cluster. In this game, that cluster is more than sufficient to feed the RX 6800 XT at high frame rates when resolution and settings are low; as resolution climbs to 4K, the CPU’s role recedes further and the GPU workload becomes the deciding factor.

Measured FPS Breakdown

The complete measured FPS dataset for this combo in Doom is below.

| Resolution | Settings | Avg FPS |

|------------|----------|---------|

| 1920x1080 | Low | 264.3 |

| 1920x1080 | Medium | 253.9 |

| 1920x1080 | High | 213.2 |

| 1920x1080 | Ultra | 176.9 |

| 2560x1440 | Low | 185.6 |

| 2560x1440 | Medium | 162.1 |

| 2560x1440 | High | 141.1 |

| 2560x1440 | Ultra | 111.8 |

| 3840x2160 | Low | 101.1 |

| 3840x2160 | Medium | 90.6 |

| 3840x2160 | High | 76.1 |

| 3840x2160 | Ultra | 61.5 |

At 1080p, the combo delivers its highest FPS ceiling. Low and Medium are close, with 264.3 fps and 253.9 fps respectively. High drops to 213.2 fps, and Ultra drops to 176.9 fps. The 1440p results keep every preset above 100 fps: 185.6 fps on Low, 162.1 fps on Medium, 141.1 fps on High, and 111.8 fps on Ultra. At 4K, the same ordering produces 101.1 fps, 90.6 fps, 76.1 fps, and 61.5 fps. The data shows a consistent hierarchy across all three resolutions: Low is always the fastest, followed by Medium, High, and Ultra. The largest absolute gap between neighboring presets at the same resolution appears between Low and Medium at 1440p? In fact the table shows the Low-to-Medium gap differs across resolutions, but the ordering is stable.

The FPS breakdown also shows that the combo never drops below 60 fps in any measured configuration. The most demanding configuration, 4K Ultra, is still at 61.5 fps. The least demanding configuration, 1080p Low, is at 264.3 fps. This wide spread makes the combo suitable for high-refresh 1080p play as well as for balanced 4K play, depending on settings.

How This Combo Ranks

In Doom, this Intel Core i5-10400F plus AMD Radeon RX 6800 XT combination ranks 612th out of 1681 tested combos. That is a strong placement for a single tested configuration. The absolute FPS data reinforces the ranking: even the weakest measured point, 4K Ultra at 61.5 fps, is a playable result, while 1080p Low at 264.3 fps is an unusually high ceiling.

The ranking should be read alongside the component percentiles. The CPU is at the 73rd percentile versus all CPUs, and the GPU is at the 87th percentile versus all GPUs. Both components are above the median of their respective pools, and the game result places the whole combo in the upper portion of the 1681-combo field. The GPU contributes more to the ranking than the CPU, because Doom’s FPS scales strongly with resolution and settings. At 1080p Low and Medium, the CPU or engine overhead appears, but the rest of the measured range is dominated by GPU throughput. The measured data indicates that this particular pairing is balanced enough to avoid a severe bottleneck at any tested setting, with the CPU doing its part at low resolutions and the GPU carrying the load at 4K.