Doom

The AMD Ryzen 9 9900X paired with the AMD Radeon RX 7900 XTX is a high-end desktop combination aimed at maxing out demanding titles. In Doom, this pairing delivers exceptionally high frame rates across all tested settings, with the data showing that the GPU is the primary driver of performance at higher resolutions while the CPU’s strong single-thread capabilities keep 1080p performance well above refresh-rate thresholds. The measured results indicate that this combo ranks in the top tier of tested configurations, placing 223rd out of 1681 total combos for this game.

Settings Recommendations

For the best experience in Doom, the measured data points to the High preset as the optimal balance between visual quality and frame rate. At 1920x1080, High settings produce an average of 270.8 FPS, which is already far beyond the refresh rate of most monitors. Moving to Ultra raises the visual fidelity but drops the average to 222.1 FPS, a reduction of roughly 18% that most users will not notice given the sheer headroom available. At 2560x1440, High delivers 170.7 FPS, which remains comfortably above 144 Hz displays, while Ultra falls to 144.4 FPS—still playable but closer to the edge for high-refresh gaming. The story changes at 3840x2160: High averages 96.4 FPS, whereas Ultra drops to 80.2 FPS. For 4K gaming, High is the clear recommendation because it keeps frame rates above 90 FPS, whereas Ultra dips below that threshold, potentially causing noticeable stutter on displays with variable refresh rates. Low and Medium presets offer higher frame rates—128 FPS and 112.5 FPS at 4K respectively—but the visual sacrifice is substantial for a game that runs this well. The data suggests that High is the sweet spot, providing a 20% improvement over Ultra at 4K while retaining most graphical features. For competitive play at 1080p, Low settings push the average to 364.9 FPS, which could be advantageous for extreme refresh-rate monitors, but the practical benefit over High is minimal.

CPU Role

The AMD Ryzen 9 9900X features 12 cores and 24 threads, with a base clock of 4.40 GHz and a boost clock of 5.60 GHz, built on the Zen 5 architecture with a 4 nm process. In Doom, the CPU’s role is most evident at lower resolutions where the GPU is less strained. At 1920x1080, the difference between Low and High settings is substantial—364.9 FPS versus 270.8 FPS—indicating that the CPU can feed frames quickly but that the GPU still limits at higher settings. The benchmark scores for this CPU show a single-thread score of 1286 in 3DMark, which is critical for a game like Doom that relies on strong per-core performance for game logic and physics. The Cinebench R23 single-core score of 6555 further confirms this strength. Compared to its nearest rivals, the 9900X has an average benchmark score of 54450, which is 0.7% higher than the Intel Core i7-14700F and 0.4% lower than the AMD Ryzen 9 9900X3D. This places it in a tight cluster where small differences in synthetic tests do not translate into meaningful FPS gaps in Doom. The CPU’s 64 MB of shared L3 cache and dual-channel DDR5 memory support with 89.6 GB/s bandwidth provide sufficient data throughput for the game’s streaming needs. At 2560x1440, the frame rates—ranging from 233.1 FPS on Low to 144.4 FPS on Ultra—suggest that the CPU is still capable of pushing high frame rates, but the GPU becomes the limiting factor as settings increase. The data indicates that the 9900X is not a bottleneck in this pairing, as even at 1080p High, the system achieves 270.8 FPS, which is well above typical display refresh rates.

GPU Role

The AMD Radeon RX 7900 XTX is the dominant component in this combo for Doom, given the game’s heavy reliance on rasterization performance. The GPU features 24 GB of GDDR6 memory on a 384-bit bus, delivering 960.0 GB/s of bandwidth, which is more than adequate for this title’s texture streaming. Its boost clock of 2498 MHz and game clock of 2365 MHz contribute to a raw FP32 performance of 61.39 TFLOPS. In the measured results, the GPU’s influence is clear when comparing resolutions: at 3840x2160, the average FPS drops from 128 on Low to 80.2 on Ultra, a 37% reduction that reflects the increasing pixel load. The GPU’s benchmark scores place it in the 85th percentile of all GPUs, with an average score of 44019. Its nearest rival, the NVIDIA GeForce RTX 4070 Ti, scores 44900, which is 2% higher, but the RX 7900 XTX outperforms the AMD Radeon Pro 580 by 0.4% in average score. In Doom specifically, the GPU’s 24 GB VRAM is never stressed, as even at 4K Ultra, the game’s memory requirements are far below this capacity. The pixel rate of 479.6 GPixel/s and texture rate of 959.2 GTexel/s indicate that the card can handle the fill-rate demands of Doom’s fast-paced environments. At 2560x1440, the GPU maintains frame rates above 144 FPS on all settings except Ultra, which hits 144.4 FPS, showing that high-refresh 1440p gaming is achievable without compromises. The GPU’s role becomes more pronounced at 4K, where the difference between Low and High settings is 31.6 FPS, suggesting that the card’s compute resources are fully utilized at this resolution.

How This Combo Ranks

This specific combination of the AMD Ryzen 9 9900X and AMD Radeon RX 7900 XTX achieves a rank of 223 out of 1681 tested combos for Doom, placing it in the top 13% of all configurations. This ranking reflects the balance between the CPU’s strong single-thread performance and the GPU’s high rasterization throughput. The CPU’s percentile rank of 94 among all CPUs, combined with the GPU’s 85th percentile among all GPUs, indicates that this pairing is well-matched for a game like Doom that responds to both component strengths. In the context of the nearest rivals, the CPU’s average benchmark score of 54450 sits close to the Intel Core Ultra 5 245K, which scores 55304, a 1.5% difference that is unlikely to affect Doom’s frame rates given the game’s engine efficiency. The GPU’s position relative to the RTX 4070 Ti—a 2% lower average score—suggests that this combo would outperform a system with that GPU, but the actual in-game results would depend on other factors like driver optimization. The combo rank of 223 indicates that there are 222 configurations that deliver higher frame rates in Doom, likely involving top-tier GPUs like the RTX 4090 or faster CPUs, but the vast majority of systems—over 1450 combos—perform worse. This places the 9900X and RX 7900 XTX in a strong position for high-refresh 1440p and smooth 4K gaming, as the measured data confirms.

Resolution Scaling

The measured FPS data shows a clear pattern of performance scaling from 1080p to 4K, which reveals the limiting component at each resolution. At 1920x1080, the average FPS across all settings ranges from 222.1 (Ultra) to 364.9 (Low). When moving to 2560x1440, these numbers drop to a range of 144.4 to 233.1, representing a decrease of approximately 35% on Low and 35% on Ultra. This consistent drop suggests that the GPU is becoming the primary limiter as pixel count increases, since the CPU’s workload does not scale linearly with resolution. At 3840x2160, the range narrows to 80.2 to 128, with the High preset dropping from 270.8 at 1080p to 96.4 at 4K—a 64% reduction. This steep decline at 4K is characteristic of a GPU-bound scenario, where the RX 7900 XTX’s compute units are saturated by the 4K pixel load. The scaling from 1080p to 1440p shows a 37% drop on High settings (270.8 to 170.7), while the drop from 1440p to 4K is 44% (170.7 to 96.4), indicating that the GPU’s performance degrades more steeply at higher resolutions. This pattern confirms that the CPU is not a bottleneck at any tested resolution, as even at 1080p Low, the frame rate of 364.9 FPS is near the upper limit of what the GPU can output. The data suggests that for 1080p gaming, the combo is CPU-bound in the sense that the GPU has headroom, but the CPU’s strong single-thread performance prevents it from becoming a limiting factor. At 4K, the GPU is clearly the limiting component, as evidenced by the large FPS differences between settings.

Measured FPS Breakdown

At 1920x1080, the measured average FPS values are as follows: Low settings produce 364.9 FPS, Medium produces 315.7 FPS, High produces 270.8 FPS, and Ultra produces 222.1 FPS. The gap between Low and Ultra is 142.8 FPS, which is a 39% reduction, indicating that the GPU’s shading units are heavily taxed by Ultra’s increased effects. At 2560x1440, the averages drop to 233.1 FPS on Low, 208 FPS on Medium, 170.7 FPS on High, and 144.4 FPS on Ultra. The difference between Low and Ultra here is 88.7 FPS, a 38% reduction, showing a similar scaling pattern to 1080p but with absolute values that are lower by roughly 30-35% across all settings. At 3840x2160, the averages are 128 FPS on Low, 112.5 FPS on Medium, 96.4 FPS on High, and 80.2 FPS on Ultra. The reduction from Low to Ultra is 47.8 FPS, a 37% drop, which is consistent with the other resolutions. When comparing settings across resolutions, the data shows that High at 4K (96.4 FPS) is similar to Ultra at 1440p (144.4 FPS), but with a 33% lower frame rate, highlighting the cost of 4K rendering. The Low preset at 4K (128 FPS) outperforms Ultra at 1440p (144.4 FPS) by a small margin, but the visual quality difference is substantial. For users targeting 60 FPS, even Ultra at 4K delivers 80.2 FPS, leaving headroom for higher refresh rates. For 144 Hz displays, High at 1440p (170.7 FPS) is the sweet spot, while 4K users should stick with High (96.4 FPS) or Medium (112.5 FPS) for smoother motion. The measured data includes no minimum or maximum FPS values, so the analysis relies solely on averages, which indicate that this combo maintains high performance across all tested configurations.