Doom

The AMD Ryzen 7 5800X paired with the AMD Radeon RX 7900 XTX delivers exceptional frame rates in Doom, with the measured data revealing a system that is overwhelmingly GPU-limited across all tested configurations. The combination of a Zen 3 processor and RDNA 3 flagship produces results that range from high-refresh 1440p dominance to solid 4K performance, though the scaling patterns indicate where the bottleneck shifts between resolutions and settings.

Resolution Scaling

The measured FPS data shows a clear and predictable drop as resolution increases from 1920x1080 to 3840x2160, but the magnitude of that drop varies significantly depending on the preset. At Low settings, the average frame rate falls from 359.2 FPS at 1080p to 234.9 FPS at 1440p, a reduction of 124.3 FPS, and then to 125.5 FPS at 4K, another 109.4 FPS drop. This represents a total decline of 233.7 FPS from 1080p to 4K, or roughly 65% of the starting performance. Such a steep falloff indicates that even at the lowest settings, the rendering workload at higher resolutions is taxing the GPU heavily, though the absolute numbers remain far above playable thresholds.

At High settings, the scaling is slightly less severe in absolute terms but still pronounced. The average FPS goes from 269.0 at 1080p to 170.5 at 1440p, a drop of 98.5 FPS, and then to 94.6 at 4K, another 75.9 FPS reduction. The total decrease of 174.4 FPS from 1080p to 4K is smaller than at Low settings, which suggests that as the preset becomes more demanding, the GPU is already more saturated at lower resolutions, compressing the relative differences. The 4K High result of 94.6 FPS remains well above the 60 FPS standard, indicating headroom for even more demanding scenes.

The Ultra preset shows the most moderate absolute scaling, with 217.0 FPS at 1080p falling to 145.2 FPS at 1440p, a 71.8 FPS drop, and then to 77.0 FPS at 4K, another 68.2 FPS reduction. The total decline of 140.0 FPS is the smallest of all presets, which is counterintuitive at first glance. However, this pattern confirms that at Ultra, the GPU is the limiting component even at 1080p; the frame rate is already constrained by the graphics card’s pixel and texture throughput, so adding resolution has a more linear, smaller absolute effect. The 4K Ultra result of 77.0 FPS is still comfortably playable, but it is the only configuration tested that approaches the lower bounds of high-refresh gaming.

What the data reveals about the limiting component is that the CPU is never the bottleneck in this pairing. Even at 1080p Low, where the frame rate reaches 359.2 FPS, the Ryzen 7 5800X with its 16 threads and boost clock of 4.70 GHz is sufficient to feed the RX 7900 XTX without capping performance. The scaling from 1080p to 4K is smooth and continuous across all presets, with no evidence of a CPU ceiling, as the 8-core, 16-thread processor’s 32 MB of L3 cache and dual-channel DDR4 memory bandwidth of 51.2 GB/s provide ample data delivery for the GPU’s 960.0 GB/s memory interface.

GPU Role

The AMD Radeon RX 7900 XTX plays the dominant role in these benchmark results, and its specifications directly explain the measured performance. The GPU’s 24 GB of GDDR6 memory on a 384-bit bus provides 960.0 GB/s of bandwidth, which is critical for Doom’s texture-heavy environments at 4K resolution. The High preset at 4K produces 94.6 FPS, and this figure is supported by the card’s 192 ROPs and 384 TMUs, which deliver a pixel rate of 479.6 GPixel/s and a texture rate of 959.2 GTexel/s. These throughput figures are what allow the card to maintain such high frame rates even when pushing 8.3 million pixels per frame.

The GPU’s clock behavior further reinforces its role as the primary performance driver. With a base clock of 1929 MHz, a game clock of 2365 MHz, and a boost clock of 2498 MHz, the RX 7900 XTX scales its frequency dynamically to match the workload. At 1080p Low, where the frame rate reaches 359.2 FPS, the GPU is likely operating near its boost ceiling but is not fully saturated, as the rendering work per frame is relatively light. At 4K Ultra, the same GPU drops to 77.0 FPS, indicating that it is now working at maximum capacity, with the boost clock unable to offset the doubled pixel count compared to 1440p.

The memory subsystem is particularly relevant for Doom, a game known for streaming large textures. The 24 GB frame buffer is more than sufficient for any resolution tested, meaning there is no VRAM capacity limitation. The 2500 MHz memory clock, translating to 20 Gbps effective, provides the 960.0 GB/s bandwidth that prevents texture streaming from causing frame hitches. The data supports this: even at 4K Ultra, the minimum frame rate is not reported as a separate value, but the average of 77.0 FPS suggests consistent performance without bandwidth-related stutters.

The GPU’s architecture, RDNA 3.0 on a 5 nm process with 57,700 million transistors, delivers 61.39 TFLOPS of FP32 compute, which is the raw horsepower behind the measured results. This compute capability, combined with the 96 ray accelerators, ensures that Doom’s lighting and shadow calculations at Ultra settings do not overwhelm the card. The 85th percentile ranking versus all GPUs, with an average benchmark score of 44019, places this card in the top tier, and the measured Doom results align with that positioning, as the 4K High score of 94.6 FPS is indicative of a high-end part.

FAQ

*Q: What is the highest average FPS achieved by this CPU-GPU combination in Doom?*

A: At 1920x1080 with Low settings, the combination reaches 359.2 FPS, which is the peak measured result across all tested configurations.

Q: How does the 4K Ultra performance compare to 1440p Ultra?

A: The 4K Ultra average is 77.0 FPS, while the 1440p Ultra average is 145.2 FPS, representing a 68.2 FPS reduction when moving to 4K, a 47% decline in frame rate.

Q: Is the Ryzen 7 5800X a bottleneck at any resolution in this game?

A: The data does not indicate a CPU bottleneck. At 1080p Low, the frame rate of 359.2 FPS is extremely high, and the smooth scaling from 1080p to 4K across all presets suggests the GPU is the limiting component throughout.

Q: What is the frame rate difference between the Medium and High presets at 2560x1440?

A: At 1440p, the Medium preset averages 206.0 FPS, while the High preset averages 170.5 FPS, a difference of 35.5 FPS in favor of Medium.

*Q: How does the RX 7900 XTX’s memory bandwidth support 4K gaming in Doom?*

A: The 24 GB GDDR6 memory on a 384-bit bus provides 960.0 GB/s of bandwidth, which is sufficient to stream the game’s high-resolution textures without capacity or bandwidth limitations, as evidenced by the consistent 94.6 FPS at 4K High.

Q: What is the lowest average FPS recorded in the entire test set?

A: The lowest average is 77.0 FPS, achieved at 3840x2160 with Ultra settings, which is still well above the 60 FPS threshold for smooth gameplay.

Settings Recommendations

The measured data provides a clear hierarchy of presets, and the optimal choice depends on the target resolution and refresh rate. At 1920x1080, all presets deliver extremely high frame rates, with the Low preset at 359.2 FPS and the Ultra preset at 217.0 FPS. For a 1080p display with a 240 Hz refresh rate, the Low preset is the only configuration that fully saturates such a panel, while the Medium preset at 317.3 FPS and High at 269.0 FPS also exceed 240 Hz. The Ultra preset at 217.0 FPS falls short of a 240 Hz target but is ideal for a 144 Hz display, offering the best visual quality without sacrificing smoothness.

At 2560x1440, the situation is more nuanced. The Low preset achieves 234.9 FPS, which is suitable for 240 Hz panels, but this comes at the cost of visual fidelity. The Medium preset at 206.0 FPS is the best balance for high-refresh gaming, as it remains above 144 Hz and even approaches 200 FPS, while the High preset at 170.5 FPS is still excellent for 144 Hz displays. The Ultra preset at 145.2 FPS is the minimum recommendation for a 144 Hz monitor, as it just clears the refresh rate threshold, but the visual improvement over High may not justify the 25.3 FPS loss.

At 3840x2160, the data shows that the High preset is the sweet spot. The High preset averages 94.6 FPS, which is well above the 60 FPS standard and provides headroom for demanding scenes. The Medium preset at 111.8 FPS offers a higher frame rate but reduces visual quality, while the Ultra preset at 77.0 FPS is still playable but pushes the GPU to its limits. For 4K gaming, the High preset is recommended as it balances the 94.6 FPS result with the highest visual quality that maintains a comfortable margin above 60 FPS. The Low preset at 125.5 FPS is unnecessary at this resolution, as the GPU can handle higher settings without sacrificing playability.

Overall, the best experience per the measured rows is the High preset at 1440p, offering 170.5 FPS, which combines excellent visual fidelity with a frame rate that exceeds most high-refresh monitors. For 4K users, the High preset at 94.6 FPS is the clear recommendation, as it provides the best visual quality while remaining comfortably above the 60 FPS threshold.

How This Combo Ranks

The combination of the AMD Ryzen 7 5800X and AMD Radeon RX 7900 XTX ranks 255th out of 1681 tested combos in Doom, placing it in the top 15% of all configurations. This ranking is consistent with the individual component performance: the CPU ranks in the 84th percentile against all processors, with an average benchmark score of 27606, while the GPU ranks in the 85th percentile against all graphics cards, with an average benchmark score of 44019. The combo ranking of 255 out of 1681 indicates that this pairing is above average but not at the very top, which is expected given that the RX 7900 XTX is an end-of-life product, while newer GPUs may achieve higher frame rates in this title.

The CPU’s nearest rivals provide context for its contribution to this ranking. The AMD Ryzen 7 5800 (non-X) is nearly identical, with an average score of 27535 and a delta of 0.3%, meaning the 5800X is only 0.3% faster. The AMD Ryzen 5 8500GE and Intel Core i7-13700H are both slightly faster, with deltas of -0.4%, meaning the 5800X lags behind them by 0.4%. The Intel Core i5-12600KF is 0.8% faster, with an average score of 27827. These small deltas confirm that the CPU is not a distinguishing factor in this combo’s ranking; the RX 7900 XTX is the primary driver of performance.

On the GPU side, the nearest rivals show a similar pattern. The AMD Radeon Pro 580 has an average score of 44195, which is 0.4% higher than the RX 7900 XTX, a negligible difference. The NVIDIA GeForce RTX 4090 Mobile is 0.8% slower, with a score of 43667, while the NVIDIA Quadro M6000 is 1.6% slower, with a score of 43313. The NVIDIA GeForce RTX 4070 Ti is 2% faster, with a score of 44900. These deltas indicate that the RX 7900 XTX is closely matched with these rivals in synthetic benchmarks, but in Doom, the measured FPS results show that this combo is competitive with high-end systems, as evidenced by its 255th rank out of 1681.

The rank of 255 out of 1681 should be interpreted with the understanding that Doom is a well-optimized title that scales strongly with GPU performance. The combo’s position in the top 15% is a direct result of the RX 7900 XTX’s high throughput, while the CPU’s 84th percentile ranking ensures that it does not hold back the GPU. For users seeking a high-refresh 1440p or smooth 4K experience, this combo’s ranking demonstrates that it is a capable pairing, even if it is not at the absolute pinnacle of the benchmark database.