Doom

The AMD Ryzen 9 5900X paired with the AMD Radeon RX 5700 XT delivers a highly capable Doom experience, but the data reveals a system that is firmly GPU-bound at higher resolutions while offering exceptional headroom for competitive play at 1080p. The combination ranks in the 76th percentile of all tested combos, indicating solid, above-average performance for this title.

Settings Recommendations

For the best balance of visual fidelity and smooth gameplay, the High preset is the clear recommendation across all resolutions. At 1080p, High settings deliver 137.1 FPS, which is 23 FPS higher than Ultra and only 52.7 FPS lower than Low, making it the optimal sweet spot for quality. At 1440p, High produces 88.8 FPS, comfortably above the 60 FPS threshold, while the jump to Ultra drops performance by 15.6 FPS to 73.2 FPS, a significant cost for marginal visual gains. At 4K, High is the only playable high-fidelity option, yielding 46.8 FPS; Ultra falls to an unplayable 38 FPS.

The Ultra preset should be avoided at 4K, as the 38 FPS average indicates the GPU is overwhelmed. At 1080p, Ultra's 114.2 FPS is still highly playable, but the 22.9 FPS loss compared to High does not justify the extra graphical load. The Medium preset serves as a fallback for 4K gaming, providing exactly 60 FPS, but it sacrifices too much visual quality at lower resolutions where High is readily achievable. Low settings are only recommended for maximizing refresh rate at 1080p, where the 189.8 FPS result can fully utilize high-refresh monitors, though the visual compromises are substantial.

CPU Role

The Ryzen 9 5900X is a 12-core, 24-thread processor based on the Zen 3 architecture, with a base clock of 3.70 GHz and a boost clock of 4.80 GHz. Its benchmark scores indicate massive headroom for this game. In Cinebench R23, it scores 33,150 multi-core and 4,680 single-core, while 3DMark single-thread and max-thread scores are 941 and 10,075, respectively. This processor is not the limiting factor in any of the measured scenarios.

The data confirms this: at 1080p Low, the combo reaches 189.8 FPS, a figure that still leaves CPU resources untapped. Even at the highest frame rates measured, the CPU's single-thread performance is sufficient to feed the GPU. The processor's 64 MB of L3 cache and 51.2 GB/s memory bandwidth provide ample data throughput for Doom's engine. The 24 threads are far more than the game requires, meaning the CPU's role is to ensure consistent frame pacing without bottlenecking, which it does effectively across all settings. Compared to its nearest rivals, the 5900X's average benchmark score of 39,453 is 0.9% higher than the Intel Core i7-13700F and 0.2% higher than the AMD EPYC 4245P, while being 0.7% behind the AMD Ryzen 7 PRO 8845HS.

GPU Role

The Radeon RX 5700 XT, with 8 GB of GDDR6 memory on a 256-bit bus and 448.0 GB/s bandwidth, is the primary performance arbiter in this configuration. Its architecture is RDNA 1.0 on a 7 nm process, with a base clock of 1605 MHz and a boost clock of 1905 MHz. The GPU's 2560 shading units and 64 ROPs deliver a 9.754 TFLOPS FP32 compute rate, which is substantial but shows clear limits at 4K.

The measured data demonstrates the GPU's workload scaling. At 1080p, the GPU is not fully saturated until High settings, where the 137.1 FPS result shows strong utilization. However, moving to 4K, the frame rate drops dramatically: from 137.1 FPS at 1080p High to 46.8 FPS at 4K High, a 65.9% reduction. This indicates the GPU's pixel throughput and memory bandwidth are stressed at 4K. The 8 GB VRAM capacity is sufficient for Doom at these settings, but the 448.0 GB/s bandwidth becomes a limiting factor at higher resolutions. The GPU's percentile ranking of 68 against all GPUs, with an average benchmark score of 24,731, places it 0.6% behind the NVIDIA GeForce RTX 5060 Mobile and 0.9% ahead of the NVIDIA Quadro RTX 5000, confirming its mid-range positioning.

How This Combo Ranks

This specific combination of the Ryzen 9 5900X and RX 5700 XT achieves a rank of 1281 out of 1681 tested combos in Doom. This places it in the 76th percentile, meaning it outperforms roughly three-quarters of all system configurations tested. The ranking reflects a balanced pairing where the CPU is over-provisioned for the GPU's capabilities, ensuring the GPU remains the sole performance limiter.

The rank is more indicative of the GPU's standing than the CPU's. Given that the CPU ranks in the 90th percentile against all CPUs, while the GPU ranks in the 68th percentile, the combo's overall rank of 76th percentile is dragged down by the GPU. This suggests that users with this CPU could see significant gains by pairing it with a stronger GPU, as the processor has headroom to support higher frame rates. The data shows the combo is not bottlenecked by the processor at any resolution, so the 1281st rank is a direct reflection of the RX 5700 XT's performance ceiling in Doom.

Resolution Scaling

The frame rate scaling from 1080p to 4K reveals a textbook GPU-bound scenario. At High settings, the FPS drops from 137.1 at 1080p to 88.8 at 1440p, a 35.2% decrease, and then to 46.8 at 4K, a further 47.3% decrease from 1440p. This scaling is consistent with the GPU's rendering load increasing quadratically with resolution, confirming that the RX 5700 XT is the limiting component.

The pattern holds across all settings. At Low, the drop is from 189.8 FPS at 1080p to 122.3 FPS at 1440p and 68.8 FPS at 4K. At Medium, it goes from 166 FPS to 105.4 FPS to 60 FPS. At Ultra, it drops from 114.2 FPS to 73.2 FPS to 38 FPS. The consistent percentage drops across settings indicate that the CPU is not introducing a bottleneck at lower resolutions; if it were, the 1080p to 1440p drop would be smaller than the 1440p to 4K drop. Instead, the drops are relatively uniform, with the 1080p to 1440p reduction being slightly larger, which is typical for a GPU-bound system at higher frame rates. The CPU's strong single-core performance ensures it can maintain high frame rates even at 1080p Low.

FAQ

Q: What is the best settings preset for a smooth 60 FPS experience at 1440p?

A: The High preset is the best choice, delivering 88.8 FPS at 1440p. It provides a 15.6 FPS advantage over Ultra while maintaining a significant visual upgrade over Medium.

Q: Can this combo handle 4K gaming?

A: Yes, but only with compromises. At 4K High, it achieves 46.8 FPS, which is below the 60 FPS target. The Medium preset hits exactly 60 FPS, while Low reaches 68.8 FPS, indicating 4K is possible but not at maximum fidelity.

Q: Is the processor or the graphics card the main bottleneck?

A: The graphics card is the clear bottleneck. The CPU's benchmark scores (e.g., 33,150 in Cinebench R23 multi-core) are far above what Doom requires, and the frame rate drops uniformly with resolution increases, which is characteristic of GPU limitation.

Q: How does this combo compare to other tested systems?

A: It ranks 1281st out of 1681 combos, placing it in the 76th percentile. This is above average, but the GPU's lower percentile ranking (68th) compared to the CPU (90th) suggests the GPU holds the combo back.

Q: What is the frame rate difference between Low and Ultra at 1080p?

A: At 1080p, Low settings produce 189.8 FPS, while Ultra produces 114.2 FPS. This is a 75.6 FPS difference, representing a 39.8% performance drop for maximum visual quality.

Q: Is the 8 GB VRAM sufficient for Doom at 4K?

A: The data indicates it is sufficient, as the game runs at all settings at 4K without crashing. However, the 448.0 GB/s memory bandwidth appears to be a limiting factor, as the 4K frame rates are significantly lower than 1440p.

Measured FPS Breakdown

The following table presents the exact average FPS measurements for each resolution and settings combination.

| Resolution | Settings | Avg FPS |

| :--------- | :------- | ------: |

| 3840x2160 | High | 46.8 |

| 3840x2160 | Low | 68.8 |

| 3840x2160 | Medium | 60.0 |

| 3840x2160 | Ultra | 38.0 |

| 2560x1440 | High | 88.8 |

| 2560x1440 | Low | 122.3 |

| 2560x1440 | Medium | 105.4 |

| 2560x1440 | Ultra | 73.2 |

| 1920x1080 | High | 137.1 |

| 1920x1080 | Low | 189.8 |

| 1920x1080 | Medium | 166.0 |

| 1920x1080 | Ultra | 114.2 |

The data shows a clear performance hierarchy. At 1080p, all presets are highly playable, with Low exceeding 180 FPS for competitive play. 1440p remains strong, with High and Medium both exceeding 100 FPS. 4K is the most demanding, with only Low and Medium exceeding 60 FPS, and Ultra dropping to 38 FPS. The scaling from 1080p to 4K at High settings (137.1 to 46.8 FPS) represents a 65.9% loss, confirming the GPU's limitations at higher resolutions.