Doom

The AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 4090 combination delivers measured frame rates in Doom that place it 20th out of 1,681 tested combos. The data set includes 12 measured FPS points across three resolutions and four quality presets, providing a clear picture of how this CPU-GPU pair behaves in the 2016 FPS title. The CPU, an 8-core/16-thread Zen 5 part with a 4.70 GHz base and 5.20 GHz boost clock, and the GPU, a 24 GB GDDR6X Ada Lovelace flagship, together produce frame rates that range from 96.4 FPS at 4K Ultra to 442.9 FPS at 1080p Low.

CPU Role

The Ryzen 7 9800X3D is built on the Zen 5 architecture (Granite Ridge) using a 4 nm process. It has 8 cores and 16 threads, with a base clock of 4.70 GHz and a boost clock of 5.20 GHz. The processor's 96 MB shared L3 cache is a notable feature, and it supports DDR5 memory with a dual-channel bus and 89.6 GB/s bandwidth. The CPU has a TDP of 120W and launched with an MSRP of $479. In synthetic benchmarks, the CPU scores 1,212 in 3DMark single-thread, 4,800 in Cinebench R23 single-core, and 3,341 in Geekbench single-core. Its multi-thread results include 10,081 in 3DMark 16-thread, 34,004 in Cinebench R23 multi-core, and 18,413 in Geekbench multi-core. The CPU's average benchmark score is 37,780, placing it in the 90th percentile of all CPUs. Compared to its nearest rivals, it trails the Intel Xeon 6353P by 0.1%, the Intel Core Ultra 5 225 by 0.1%, the Intel Core i9-13900HK by 0.6%, and the Intel Core i5-13600KF by 0.7% in average benchmark score.

In Doom, the CPU's high single-thread performance is evident at lower resolutions. At 1080p Low, the combination reaches 442.9 FPS, and at 1080p Medium it hits 387.9 FPS. These numbers indicate that the CPU can feed the GPU well beyond typical refresh rates. The 8-core/16-thread configuration also provides ample multi-threaded headroom, though Doom's engine is not heavily threaded. The 96 MB L3 cache may help with data locality, but the measured FPS at 1080p suggests the CPU is not a bottleneck at any setting, as even Ultra at 1080p yields 270.3 FPS. The CPU's boost clock of 5.20 GHz is among the highest in its class, and the benchmark results show that single-thread performance is strong enough to sustain very high frame rates in this title.

GPU Role

The NVIDIA GeForce RTX 4090 is based on the AD102 chip with Ada Lovelace architecture on a 5 nm process. It has 24 GB of GDDR6X memory on a 384-bit bus, delivering 1.01 TB/s of bandwidth. The GPU's base clock is 2235 MHz, boost clock is 2520 MHz, and memory runs at 1313 MHz (21 Gbps effective). It features 16,384 shading units, 512 TMUs, 176 ROPs, 128 RT cores, and 512 tensor cores. Its FP32 compute is 82.58 TFLOPS. The GPU has a TDP of 450W and launched with an MSRP of 1,599 USD. In benchmarks, the GPU scores 9,223 in 3DMark Steel Nomad DX12, 317,684 in Geekbench OpenCL, and 270,615 in Geekbench Vulkan. Its average benchmark score is 66,473, placing it in the 91st percentile of all GPUs. Compared to its nearest rivals, it is 0.4% behind the NVIDIA Tesla T4, 0.5% ahead of the NVIDIA Tesla P40, 0.9% behind the AMD Radeon Pro Vega 56, and 1.3% behind the NVIDIA Quadro P6000 in average benchmark score.

In Doom, the GPU's capabilities are most visible at 4K. At 4K Ultra, the combination produces 96.4 FPS, while at 4K High it reaches 116.9 FPS. The 24 GB VRAM and 1.01 TB/s bandwidth are sufficient for high-resolution textures, and the measured frame rates show that the GPU is the primary limiter at 4K, as the FPS drops consistently from 1080p to 4K across all settings. The GPU's high memory bandwidth and compute throughput allow it to maintain playable frame rates even at the highest preset, though the drop from 1080p to 4K is substantial.

Settings Recommendations

The measured FPS rows provide a clear basis for choosing a preset. At 1080p, all four presets exceed 270 FPS, with Low at 442.9, Medium at 387.9, High at 325.8, and Ultra at 270.3. Since even Ultra is well above 240 Hz, the choice is purely visual. At 1440p, Low yields 287.6 FPS, Medium 252.2, High 211.8, and Ultra 171.8. All are above 144 Hz, so High or Ultra are viable for high-refresh monitors. At 4K, the situation changes: Low gives 158.9 FPS, Medium 136.1, High 116.9, and Ultra 96.4. For a smooth 4K experience, High is the highest preset that stays above 100 FPS, while Ultra dips below 100. Medium offers a higher margin at 136.1 FPS. The data suggests that High at 4K provides the best balance of visual quality and frame rate, while Ultra is playable but closer to the 60 FPS threshold.

FAQ

Q: What is the average FPS at 1440p High in Doom?

A: The measured average FPS at 2560x1440 with High settings is 211.8.

Q: How does the Ryzen 7 9800X3D compare to the Intel Core i5-13600KF in average benchmark score?

A: The Ryzen 7 9800X3D has an average benchmark score of 37,780, which is 0.7% lower than the Intel Core i5-13600KF's 38,028.

Q: What is the combo's rank among all tested Doom combinations?

A: This CPU-GPU combination ranks 20th out of 1,681 tested combos.

Q: What is the RTX 4090's memory bandwidth?

A: The RTX 4090 has a memory bandwidth of 1.01 TB/s.

Q: Which preset gives the highest FPS at 4K?

A: At 3840x2160, the Low preset yields the highest average FPS at 158.9, followed by Medium at 136.1, High at 116.9, and Ultra at 96.4.

Q: What is the CPU's boost clock?

A: The Ryzen 7 9800X3D has a boost clock of 5.20 GHz.

Resolution Scaling

The measured FPS data shows a consistent drop from 1080p to 4K across all settings. For High, the average FPS falls from 325.8 at 1080p to 211.8 at 1440p and 116.9 at 4K. That is a 35.9% retention from 1080p to 4K (116.9/325.8). For Low, the drop is from 442.9 to 158.9, a 35.9% retention. Medium goes from 387.9 to 136.1, a 35.1% retention, and Ultra from 270.3 to 96.4, a 35.7% retention. The uniformity of these ratios—all around 35-36%—indicates that the GPU is the limiting component at higher resolutions. The CPU's high single-thread performance allows very high frame rates at 1080p, but as resolution increases, the GPU's workload dominates, and the FPS scales proportionally with the pixel count. The drop from 1080p to 1440p is less severe: High retains 65.0% (211.8/325.8), Low 64.9%, Medium 65.0%, and Ultra 63.5%. This pattern is consistent with a GPU-bound scenario at 1440p and 4K.

Measured FPS Breakdown

| Resolution | Settings | Avg FPS |

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

| 3840x2160 | High | 116.9 |

| 3840x2160 | Low | 158.9 |

| 3840x2160 | Medium | 136.1 |

| 3840x2160 | Ultra | 96.4 |

| 2560x1440 | High | 211.8 |

| 2560x1440 | Low | 287.6 |

| 2560x1440 | Medium | 252.2 |

| 2560x1440 | Ultra | 171.8 |

| 1920x1080 | High | 325.8 |

| 1920x1080 | Low | 442.9 |

| 1920x1080 | Medium | 387.9 |

| 1920x1080 | Ultra | 270.3 |

The table lists all measured average FPS values from the data set. The highest frame rate is 442.9 FPS at 1080p Low, and the lowest is 96.4 FPS at 4K Ultra. The spread across settings and resolutions shows the performance envelope of this combination, with the CPU providing headroom at low resolutions and the GPU taking over as the bottleneck at 4K.