Doom

The AMD Ryzen 9 7900X paired with the AMD Radeon RX 7600 delivers a highly playable Doom experience across most settings, but the data reveals a system that is firmly GPU-bound at higher resolutions, with the CPU’s substantial headroom only becoming apparent at 1080p. The measured FPS shows that while the combination can push past 190 FPS at lower settings, the graphical load at 4K Ultra drops performance to sub-60 FPS territory, making the GPU the definitive bottleneck in this pairing.

Resolution Scaling

The FPS drop from 1080p to 4K is steep and consistent, clearly showing a GPU-limited scenario. At Low settings, the average frame rate falls from 195 FPS at 1920x1080 to 122.4 FPS at 2560x1440, and then to 70.4 FPS at 3840x2160. This represents a 64% reduction in performance from 1080p to 4K, which is a classic sign that the Radeon RX 7600’s rendering throughput, rather than the CPU’s processing power, is the limiting factor.

The scaling pattern becomes even more telling at higher graphical presets. Moving from 1080p to 4K on High settings drops the average from 141.5 FPS to 48.9 FPS, a 65% decrease. At Ultra settings, the same resolution change yields a decline from 117.1 FPS to 43.7 FPS, a 63% drop. The consistency of these percentage losses across all settings indicates that the rendering pipeline is saturated at 4K, and the CPU’s role in frame generation is not the primary constraint.

At 1080p, the data suggests the CPU begins to exert more influence. The gap between Low (195 FPS) and Ultra (117.1 FPS) is 77.9 FPS, which is relatively large, but the fact that even at 1080p Low the system doesn’t exceed 200 FPS implies that the CPU’s single-thread performance, while strong, is not limitless. The Ryzen 9 7900X’s boost clock of 5.60 GHz and single-thread benchmark scores (3dmark single-thread score of 1093, passmark single-thread score of 4238) are high, but the data indicates that the GPU’s fill rate at higher resolutions is the dominant factor in determining the final average FPS.

Settings Recommendations

The optimal balance between visual fidelity and frame rate is achieved at Medium settings for 4K, and High settings for lower resolutions. At 3840x2160, Medium yields an average of 57.4 FPS, which is above the 60 FPS target for smooth gameplay, while High drops to 48.9 FPS and Ultra falls to 43.7 FPS. For users prioritizing a locked 60 FPS experience at 4K, Medium is the recommended preset, as it provides a 13.7 FPS advantage over High.

At 2560x1440, all settings produce playable results, but High stands out with 92.2 FPS. This is a 16.8 FPS improvement over Ultra (77.9 FPS) and only 16.8 FPS less than Low (122.4 FPS). The High preset offers a better visual experience than Medium (109 FPS) while still maintaining a frame rate well above the 60 FPS threshold. The data shows that at 1440p, the GPU has enough headroom to handle the additional visual effects of High settings without a disproportionate performance penalty.

For 1920x1080, High settings at 141.5 FPS represent the best experience. It is 24.4 FPS faster than Ultra (117.1 FPS) and only 26.6 FPS slower than Low (168.9 FPS). The jump from High to Medium (168.9 FPS) is significant, but the diminishing returns on visual quality make High the more balanced choice. The difference between High and Low is 53.5 FPS, which is substantial, but the visual degradation at Low is not worth the extra frames when the system can already achieve over 140 FPS at High.

CPU Role

The Ryzen 9 7900X’s 12 cores and 24 threads are largely underutilized in Doom, as the game’s engine does not appear to scale heavily with multi-threading. The CPU’s multi-core benchmark scores are impressive, with a cinebench r23 multicore score of 43695 and a passmark multithread score of 51406, but the measured FPS data shows that the GPU is the limiting factor at most settings. The CPU’s performance percentile (93rd vs all CPUs) is excellent, yet it does not translate into higher frame rates when the GPU is saturated.

The CPU’s single-thread performance is more relevant to this game. The boost clock of 5.60 GHz, combined with a cinebench r23 singlecore score of 6168, indicates that the CPU can handle the game’s main thread efficiently. However, the data shows that at 1080p Low, the system hits 195 FPS, which is likely near the engine’s frame rate limit or the GPU’s vertex processing limit. The CPU is not holding the system back, as evidenced by the fact that the FPS scales almost linearly with resolution, which is a GPU-bound characteristic.

The architecture’s cache design also plays a role. The 64 MB of shared L3 cache and 1 MB L2 per core provide ample bandwidth for game data, but this does not manifest as a performance advantage in Doom because the GPU’s 8 GB of VRAM and 288.0 GB/s memory bandwidth are the primary resources being consumed. The CPU’s 83.2 GB/s memory bandwidth is more than sufficient for the game’s data transfer needs, but it is not a bottleneck in any of the measured scenarios.

How This Combo Ranks

This combination of AMD components ranks 1141 out of 1681 tested combos for Doom, placing it in the lower-middle tier of the benchmark database. This ranking is somewhat surprising given the individual component strengths, but it reflects the fact that the RX 7600 is not a high-end GPU. The combo’s rank suggests that many other pairings, likely those with more powerful graphics cards, achieve higher average FPS in this specific title.

The GPU’s average benchmark score of 20258 and its 63rd percentile vs all GPUs indicate that it is a mid-range performer. Its nearest rival, the AMD Radeon RX 7600 XT, scores 20146, which is a 0.6% delta, showing that the RX 7600 is very close to its immediate sibling in raw compute. However, in Doom, the measured FPS at 4K Ultra (43.7 FPS) is below the 60 FPS mark, which likely contributes to the lower combo ranking. The CPU’s ranking is much higher (93rd percentile), but it cannot compensate for the GPU’s limitations in this game.

The ranking of 1141 out of 1681 means that the combo is outperformed by roughly 68% of the tested configurations. This is not a poor result, but it indicates that Doom is more sensitive to GPU performance than CPU performance. Users with this combo should not expect top-tier frame rates at high resolutions, but the system is still capable of delivering a smooth experience at 1080p and 1440p, as seen in the measured FPS data.

FAQ

Q: Can this system run Doom at 4K with a stable frame rate?

A: At 4K Medium settings, the average FPS is 57.4, which is close to a stable 60 FPS. High settings drop to 48.9 FPS, and Ultra falls to 43.7 FPS, so only Medium is recommended for 4K play.

Q: Is the Ryzen 9 7900X a bottleneck for the RX 7600 in this game?

A: No, the data shows the opposite. The FPS scales heavily with resolution and settings, indicating the GPU is the limiting factor. The CPU’s high single-thread scores (cinebench r23 singlecore of 6168) and boost clock of 5.60 GHz keep it from being a constraint.

Q: What is the best setting for 1440p gameplay?

A: High settings at 2560x1440 produce an average of 92.2 FPS, which offers a good balance between visual quality and performance. Ultra settings are also playable at 77.9 FPS, but High provides a 14.3 FPS advantage.

Q: How does this combo’s performance compare to other tested systems?

A: It ranks 1141 out of 1681 combos for Doom. This places it in the lower half of the database, primarily due to the GPU’s mid-range positioning, despite the CPU’s high 93rd percentile ranking.

Q: Does the CPU’s multi-threading capability matter for Doom?

A: The 12 cores and 24 threads provide a high passmark multithread score of 51406, but Doom does not appear to scale with multi-threading. The performance differences are driven by GPU load, not CPU thread utilization.

Q: Is there a significant difference between Low and Medium settings at 1080p?

A: Yes, the average FPS jumps from 168.9 (Medium) to 195 (Low), a difference of 26.1 FPS. However, High settings at 141.5 FPS are still well above playable thresholds.

Measured FPS Breakdown

At 1920x1080, the system delivers its highest frame rates. Low settings average 195 FPS, Medium averages 168.9 FPS, High averages 141.5 FPS, and Ultra averages 117.1 FPS. The spread between Low and Ultra is 77.9 FPS, showing that the GPU is still the primary constraint even at this resolution.

At 2560x1440, performance remains strong. Low settings average 122.4 FPS, Medium averages 109 FPS, High averages 92.2 FPS, and Ultra averages 77.9 FPS. The difference between Low and Ultra is 44.5 FPS, which is a smaller gap than at 1080p, indicating that the GPU is being pushed harder.

At 3840x2160, frame rates drop significantly. Low settings average 70.4 FPS, Medium averages 57.4 FPS, High averages 48.9 FPS, and Ultra averages 43.7 FPS. Only Low settings maintain an average above 60 FPS, while Ultra dips below 45 FPS. The data shows a consistent pattern: each resolution increase results in a substantial average FPS loss across all settings, confirming the GPU bottleneck.

GPU Role

The Radeon RX 7600’s 8 GB of GDDR6 memory on a 128-bit bus provides 288.0 GB/s of bandwidth, which proves sufficient for Doom at 1080p and 1440p but becomes a limiting factor at 4K. The GPU’s boost clock of 2655 MHz and game clock of 2250 MHz contribute to its performance, but the pixel rate of 169.9 GPixel/s is not enough to maintain high frame rates at 4K Ultra, where the average drops to 43.7 FPS.

The GPU’s 2048 shading units and 64 ROPs are the core components that determine its fill rate. The data shows that at 4K, the GPU’s rendering capabilities are saturated, as evidenced by the fact that lowering settings from High to Low only improves performance by 21.5 FPS (from 48.9 to 70.4). This is a smaller relative improvement than at 1080p, where the same settings change yields a 53.5 FPS difference (from 141.5 to 195). The RX 7600’s average benchmark score of 20258 and its 63rd percentile ranking reflect its mid-range status, and the measured FPS in Doom confirms that it is best suited for 1080p and 1440p gaming, with 4K requiring reduced settings to remain playable.