Doom

The AMD Ryzen 9 9900X paired with the NVIDIA GeForce RTX 5090 delivers a formidable performance profile in Doom, placing 5th out of 1681 tested combos. The data indicates that this pairing is heavily GPU-bound at higher resolutions, while the CPU's strength becomes apparent at 1080p, where frame rates soar past the 300 FPS mark. This analysis breaks down the measured results to determine the optimal settings, the role of the components, and the scaling behavior across resolutions.

Settings Recommendations

The benchmark data provides a clear hierarchy across the four available presets: Low, Medium, High, and Ultra. For players prioritizing maximum smoothness and responsiveness, the Low preset is the standout choice, delivering the highest average frame rates at every resolution. At 1920x1080, the Low preset achieves 460.4 FPS, which is 15% higher than the Medium preset's 398.8 FPS and 35% higher than High's 341.5 FPS. This trend continues at 2560x1440, where Low hits 300 FPS, a 16.6% improvement over Medium's 257.3 FPS and a 35.5% lead over High's 221.4 FPS. Even at 3840x2160, Low maintains a commanding lead with 159.8 FPS, outperforming Medium by 14.6% and High by 36.3%.

However, the data also shows that the Ultra preset, while visually demanding, still yields playable results. At 1080p, Ultra produces 277.2 FPS, which is 19% lower than High but still exceptionally high for competitive play. At 1440p, Ultra drops to 179.8 FPS, and at 4K it falls to 100.1 FPS. The jump from High to Ultra incurs a significant performance cost: a 23% reduction at 1080p, a 23.1% reduction at 1440p, and a 17.1% reduction at 4K. Given that the RTX 5090 is capable of pushing the High preset to 341.5 FPS at 1080p and 221.4 FPS at 1440p, the High preset represents the best balance for users with high-refresh-rate monitors who want enhanced visual fidelity without sacrificing the fluidity that Doom is known for. For maximum frame rates, Low is the optimal choice, while Ultra is reserved for those who prioritize image quality over raw speed.

GPU Role

The NVIDIA GeForce RTX 5090 is the dominant force in this configuration, and its specifications explain the observed performance. The GPU is built on the Blackwell 2.0 architecture and features 32 GB of GDDR7 memory on a 512-bit bus, yielding a massive 1.79 TB/s of memory bandwidth. This bandwidth is critical for Doom's texture streaming and high-resolution rendering, ensuring that the GPU never stalls waiting for data. The core clock runs at a base of 2017 MHz with a boost of 2407 MHz, and the card houses 21,760 shading units alongside 170 RT cores and 680 tensor cores. This hardware configuration allows the RTX 5090 to deliver 104.8 TFLOPS of FP32 compute, which directly translates to the high polygon counts and effects in Doom.

The GPU's role is most evident when examining the frame rate deltas between settings. At 4K, the difference between Low and Ultra is 59.7 FPS (from 159.8 to 100.1), demonstrating that the GPU is the primary bottleneck as resolution and visual complexity increase. The 32 GB VRAM allocation is more than sufficient for Doom at any setting, so memory capacity is not a limiting factor here; instead, the raw compute power and memory bandwidth are what drive the scores. The GPU's performance percentile of 94 against all GPUs confirms its top-tier status, and its average benchmark score of 84,306 places it only 0.1% behind the RTX 5090 D in the nearest rivals list, indicating no meaningful performance gap between these two variants in synthetic tests.

How This Combo Ranks

The AMD Ryzen 9 9900X and RTX 5090 combination achieves a combo rank of 5 out of 1,681 tested configurations in Doom. This places it in the top 0.3% of all pairings, a stellar result that underscores the synergy between the 12-core, 24-thread CPU and the flagship GPU. The CPU's performance is noteworthy; it holds a 94th percentile ranking among all CPUs, with an average benchmark score of 54,450. Its nearest rival, the AMD Ryzen 9 9900X3D, posts a score of 54,681, which is only 0.4% higher, showing that the 9900X is effectively on par with its 3D V-Cache sibling in this game. The Intel Core i7-14700F trails slightly with a score of 54,097 (0.7% lower), while the Intel Core Ultra 5 245K and 245KF are 1.5% and 1.8% ahead, respectively.

For the GPU, the RTX 5090's percentile of 94 places it at the apex of graphics cards, with an average benchmark score of 84,306. Its closest competitor, the RTX 5090 D, scores 84,241 (0.1% lower), and the RTX 5050 Mobile is 0.2% behind at 84,171. This data confirms that the combo is built from two components that are each at the top of their respective performance tiers, and the resulting 5th-place finish in Doom is a direct reflection of that hardware pedigree. The fact that 1,676 other combos rank lower indicates that very few configurations can match this level of sustained high frame rates.

Measured FPS Breakdown

The measured FPS data reveals a consistent pattern across all resolutions: the Low preset delivers the highest average frame rates, followed by Medium, then High, and finally Ultra. At 1920x1080, the results are 460.4 FPS (Low), 398.8 FPS (Medium), 341.5 FPS (High), and 277.2 FPS (Ultra). The scaling from Low to Ultra shows a drop of 183.2 FPS, or 39.8%, which is a substantial but expected cost for maximum visual quality. At 2560x1440, the scores are 300 FPS (Low), 257.3 FPS (Medium), 221.4 FPS (High), and 179.8 FPS (Ultra). The performance gap between Low and Ultra here is 120.2 FPS, a 40.1% reduction, showing that the relative cost of Ultra remains consistent as resolution increases.

At 3840x2160, the trend continues with 159.8 FPS (Low), 139.4 FPS (Medium), 117.2 FPS (High), and 100.1 FPS (Ultra). The difference between Low and Ultra at 4K is 59.7 FPS, a 37.4% reduction, which is slightly less severe than at lower resolutions. This suggests that at 4K, the GPU is already under such heavy load that the additional settings overhead has a marginally smaller proportional impact. Notably, the Low preset at 4K (159.8 FPS) is still faster than the Ultra preset at 1440p (179.8 FPS) is slower, highlighting the GPU's ability to maintain high frame rates even at the highest resolution. The 1440p Low result of exactly 300 FPS serves as a benchmark milestone, indicating the ceiling for the combo before hitting potential refresh rate limits.

Resolution Scaling

The transition from 1080p to 4K provides critical insight into which component limits performance. At the Low preset, the frame rate drops from 460.4 FPS at 1080p to 300 FPS at 1440p, a 34.8% reduction, and then to 159.8 FPS at 4K, a further 46.7% reduction from 1440p. This steep decline as resolution increases is a classic sign of GPU-bound performance; the CPU has ample headroom, but the GPU's rendering workload grows exponentially with pixel count. The same pattern is visible at the High preset, where scores fall from 341.5 FPS at 1080p to 221.4 FPS at 1440p (35.2% drop) and then to 117.2 FPS at 4K (47.1% drop from 1440p).

The scaling ratio from 1080p to 4K is particularly telling. At Low, the 4K score is 34.7% of the 1080p score; at High, it is 34.3%; at Medium, it is 35.0%; and at Ultra, it is 36.1%. These ratios are remarkably consistent, hovering around 35%, which indicates that the GPU is the limiting factor at all settings and resolutions. If the CPU were the bottleneck, we would expect to see a much smaller performance delta between 1080p and 4K, as the GPU would be waiting for instruction processing. Instead, the near-linear scaling with resolution confirms that the RTX 5090's compute and memory bandwidth are the primary drivers of frame rate, while the Ryzen 9 9900X's 12 Zen 5 cores provide sufficient single-thread performance to keep up without constraining the GPU. The 4K Ultra result of 100.1 FPS is the only measurement that dips below the 100 FPS threshold, making it the sole scenario where the combo's dominance is slightly tempered by the sheer pixel count.