Doom

The AMD Ryzen 9 9900X is a 12-core, 24-thread processor based on the Zen 5 architecture, built on a 4 nm process. It operates at a base clock of 4.40 GHz and a boost clock of 5.60 GHz, with a 120 W TDP. This configuration provides substantial headroom for gaming workloads, particularly in a title like Doom, which relies on high frame rates and can leverage multiple threads. The processor's 64 MB of shared L3 cache is a significant asset for game data, helping to reduce latency and maintain consistent frame pacing. Benchmark data supports this, as the CPU scores 12,552 in 3dmark_16_threads and 46,438 in Cinebench R23 multicore, indicating strong scaling with thread count. Its single-thread performance is also robust, with a Cinebench R23 single-core score of 6,555, which is critical for the primary game logic loop. In the broader landscape, this CPU sits at the 94th percentile among all CPUs, with an average benchmark score of 54,450. The nearest rivals are closely matched: the AMD Ryzen 9 9900X3D leads by a marginal 0.4% in average score, while the Intel Core i7-14700F trails by 0.7%, and the Intel Core Ultra 5 245K and 245KF are 1.5% and 1.8% ahead, respectively. These narrow deltas suggest that in CPU-bound scenarios, the 9900X offers performance parity with its closest competitors, meaning the Doom results are primarily dictated by other system components.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 5080 is built on the Blackwell 2.0 architecture and fabricated on a 5 nm process. It features 16 GB of GDDR7 memory on a 256-bit bus, delivering a memory bandwidth of 960.0 GB/s. The GPU operates at a base clock of 2295 MHz and a boost clock of 2617 MHz, with a 360 W TDP. For a fast-paced FPS like Doom, this combination of high bandwidth and clock speeds is essential for keeping the frame buffer and textures fed, especially at higher resolutions. The GPU’s raw compute capabilities, with a FP32 throughput of 56.28 TFLOPS, allow it to handle the game’s rendering demands without becoming the primary bottleneck in most scenarios. The RTX 5080 ranks at the 89th percentile among all GPUs, with an average benchmark score of 59,188. Its nearest rivals show a peculiar pattern: the Intel Arc A570M is 1.6% ahead, the Intel Arc A580 is 2.5% ahead, the AMD Radeon Pro W5500X is 2.6% ahead, while the Intel Arc Pro A60 trails by 1.9%. While these deltas are small, the fact that the RTX 5080 is not decisively ahead of these mid-range parts in aggregate benchmarks suggests that the Doom frame rates are heavily influenced by the specific game engine and its optimization for the GPU’s architecture, rather than just raw compute.

How This Combo Ranks — use comboRankInGame vs other tested combos

In the database of tested combinations for Doom, this pairing of the AMD Ryzen 9 9900X and NVIDIA GeForce RTX 5080 achieves a rank of 57 out of 1,681 combos. This places it in the top 3.4% of all tested systems, which is a strong result for a high-end desktop configuration. The data indicates that the combination of a top-tier CPU and a high-end GPU yields excellent performance in this title. However, the rank is not higher, which implies that some other combinations—likely those with even more powerful GPUs or CPUs with higher single-thread performance—are able to push the frame rates further. The rank is a holistic measure, and it reflects that while this combo is exceptional, it is not the absolute fastest available. The measured FPS data will show where this combo excels and where it might be leaving performance on the table, particularly at lower resolutions where the CPU’s influence is more pronounced.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured frame rates for this combo in Doom are as follows: at 1920x1080, the average FPS ranges from 254.5 on Ultra settings to 423.4 on Low settings. Specifically, High settings yield 311.2 FPS, Medium yields 372.7 FPS, and Low yields 423.4 FPS. This wide spread indicates that the CPU and GPU have enough headroom to produce extremely high frame rates, and the settings are scaling the rendering workload significantly. At 2560x1440, the results are 162.4 FPS on Ultra, 203.5 FPS on High, 238.8 FPS on Medium, and 275.5 FPS on Low. The drop from 1080p to 1440p is noticeable, but the frame rates remain well above the refresh rates of most monitors. At 3840x2160, the frame rates decrease further: 89.4 FPS on Ultra, 112.5 FPS on High, 131.8 FPS on Medium, and 150.1 FPS on Low. Even at 4K Ultra, the combo maintains an average above 60 FPS, demonstrating its capability for high-fidelity gaming. The data shows a consistent pattern: as resolution increases, the frame rate drops, but the relative performance across settings remains stable. The difference between Low and Ultra at 1080p is 168.9 FPS, while at 4K, the difference is 60.7 FPS, indicating that the GPU becomes more of a limiting factor at higher resolutions.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

Analyzing the scaling from 1920x1080 to 3840x2160 reveals the nature of the bottleneck. On Ultra settings, the frame rate drops from 254.5 FPS at 1080p to 162.4 FPS at 1440p, and finally to 89.4 FPS at 4K. This represents a 35.9% reduction from 1080p to 1440p, and a further 45.0% reduction from 1440p to 4K. The total drop from 1080p to 4K is 64.9%. This scaling pattern is typical of a GPU-bound scenario: the CPU has ample performance to keep up with the frame generation at lower resolutions, but as the pixel count increases, the GPU’s rendering workload becomes the dominant factor. On Low settings, the drop from 1080p (423.4 FPS) to 1440p (275.5 FPS) is 34.9%, and from 1440p to 4K (150.1 FPS) is 45.5%. The similarity in percentage drops across settings suggests that the GPU is consistently the limiting component, regardless of the graphical complexity. The fact that the frame rate at 4K Low (150.1 FPS) is higher than the frame rate at 1080p Ultra (254.5 FPS) is expected, but the proportional reduction indicates that the GPU’s fill rate and shading capabilities are the primary constraints. The CPU, with its strong single-thread and multi-thread scores, is not holding back the system, as evidenced by the high frame rates at 1080p. This combo is well-balanced, with the GPU being the limiting factor at higher resolutions, which is the ideal scenario for a gaming system.