Doom

The Intel Core i5-12600KF paired with the NVIDIA GeForce RTX 5090 delivers an exceptional Doom experience across every tested resolution and preset, with the data showing that this combo ranks 67th out of 3712 tested combinations. At 4K Ultra, the system still produces 99.5 FPS average, clearing the 60 FPS threshold by a wide margin, and at 1080p the frame rates exceed 278 FPS even on the most demanding settings. This is a combination where the GPU dominates performance scaling, but the CPU keeps pace admirably, making it a top-tier pick for Doom at any resolution.

How This Combo Ranks

The combo rank of 67 out of 3712 tested combinations places this setup in the top 1.8% of all systems tested for Doom. This is a strong result, but it is notably the RTX 5090's percentileVsAllGpus of 92 means the GPU alone outperforms 92% of all GPUs in the database, while the i5-12600KF's percentileVsAllCpus of 79 puts it in the upper quintile for processors. The combination of a high-percentile GPU with a solidly upper-tier CPU yields a system that is not quite at the absolute pinnacle of Doom performance—the rank of 67 suggests a handful of other combos edge it out—but the measured FPS data shows that the practical difference is negligible for playability.

The measured FPS at every resolution and preset exceeds 60 FPS, which is the playableThresholdFps. At 3840x2160 Ultra, the average is 99.5 FPS, which is 65.8% above the threshold. At 2560x1440 Ultra, the average jumps to 176.5 FPS, nearly tripling the threshold. At 1920x1080 Ultra, the average of 278.9 FPS is over four times the playable threshold. The lowest recorded average across all tests is 99.5 FPS (4K Ultra), which still leaves substantial headroom. This indicates that the combo rank, while not number one, reflects a system that never drops below comfortable playability in Doom.

Within the tested settings, the frame rate scaling is consistent: from 4K Ultra (99.5 FPS) to 4K High (118.6 FPS) is a 19.1 FPS improvement, and from 4K High to 4K Medium (137.9 FPS) is another 19.3 FPS gain. The jump from Medium to Low at 4K (159.4 FPS) is 21.5 FPS. This linear scaling suggests the GPU is the primary bottleneck at 4K, as reducing settings yields predictable gains. At lower resolutions, the scaling becomes less pronounced between Medium and High, but the overall trend remains.

Best Settings per Resolution

At 3840x2160, the most demanding preset that stays at or above 60 FPS is Ultra, with an average of 99.5 FPS. This is the highest quality setting available in the data, and it clears the threshold by 39.5 FPS. There is no need to compromise on quality at 4K; the system can handle the maximum preset with room to spare. The data shows that even Ultra at 4K is not close to the 60 FPS line.

At 2560x1440, the best settings are also Ultra, delivering an average of 176.5 FPS. This is well above the 60 FPS threshold, with a margin of 116.5 FPS. The gap between Ultra and High at this resolution is 40.1 FPS (216.4 FPS for High), which indicates that the GPU is still the limiting factor, but the headroom at Ultra is so large that users could enable additional features without concern.

At 1920x1080, Ultra again is the best setting, with an average of 278.9 FPS. This is 218.9 FPS above the playable threshold. The frame rates at 1080p are so high that the CPU begins to play a more significant role, as evidenced by the smaller gap between Medium (389.9 FPS) and Low (410.4 FPS) compared to other resolutions. Nevertheless, Ultra at 1080p is the clear recommendation, as it provides the best visual quality while still delivering nearly 279 FPS.

CPU and GPU Roles

The data reveals a clear shift in bottleneck behavior across resolutions. At 3840x2160, the GPU is the dominant factor. The frame rate drops from 159.4 FPS at Low to 99.5 FPS at Ultra, a 60.0% reduction as settings increase. This steep decline indicates that the RTX 5090 is being pushed harder at 4K, and the CPU has enough headroom to keep up. The difference between Low and Medium at 4K is 21.5 FPS, which is similar to the difference between Medium and High (19.3 FPS), suggesting a consistent GPU-bound scaling.

At 2560x1440, the GPU remains the primary constraint, but the CPU starts to show its influence. The gap between Low (300.7 FPS) and Ultra (176.5 FPS) is 124.2 FPS, which is a 41.3% reduction. However, the gap between High (216.4 FPS) and Medium (257.2 FPS) is 40.8 FPS, which is larger than the comparable gap at 4K (19.3 FPS). This suggests that at 1440p, the CPU is beginning to contribute to the frame rate ceiling, especially at lower settings where the GPU is less stressed.

At 1920x1080, the CPU's role becomes more pronounced. The difference between Low (410.4 FPS) and Medium (389.9 FPS) is only 20.5 FPS, and between Medium and High (339.9 FPS) is 50.0 FPS. The jump from High to Ultra (278.9 FPS) is 61.0 FPS. This pattern indicates that at 1080p, the i5-12600KF is nearing its limit in driving very high frame rates, as the GPU is capable of far more but is held back by the processor. The scaling from Low to Ultra at 1080p is 131.5 FPS, which is proportionally smaller than at 4K (60.0 FPS drop) when considering the higher absolute numbers. This is a classic sign of CPU limitation at lower resolutions.

Benchmark data supports this interpretation. The i5-12600KF scores 1016 in 3dmark_single_thread and 7956 in 3dmark_16_threads, which are strong numbers but not top-tier. The RTX 5090, by contrast, scores 18355 in 3dmark_steel_nomad_dx12 and 39650 in passmark_g3d, placing it in the 92nd percentile. At 1080p, the CPU's single-thread performance becomes a limiting factor, while at 4K, the GPU's raw throughput is the bottleneck.

Similar Performance Alternatives

For the CPU, the nearest rivals based on average benchmark score are a tight cluster. The Intel Core i9-10900K has an avgScore of 27872, which is 0.3% lower than the i5-12600KF's 27799. The AMD Ryzen 7 5800X3D scores 27896, also 0.3% higher. The AMD Ryzen 7 6800U scores 27887, 0.3% higher, and the AMD Ryzen 5 8500GE scores 27712, 0.3% lower. These deltaPct values are all within 0.3% of the i5-12600KF, meaning that in Doom, swapping to any of these CPUs would produce nearly identical frame rates. The Ryzen 7 5800X3D, with its 3D V-Cache, might behave slightly differently in cache-sensitive games, but the benchmark data shows no significant difference for this combination.

For the GPU, the nearest rivals are more varied. The NVIDIA Tesla P100 PCIe 16 GB scores 79605, which is 0.3% lower than the RTX 5090's 79842. The Tesla P100 PCIe 12 GB scores 79396, 0.6% lower. The AMD Radeon RX 6850M XT scores 78940, 1.1% lower, and the AMD Radeon Pro Vega 64X scores 80959, 1.4% higher. These deltaPct values indicate that the RTX 5090's performance is closely matched by these alternatives in synthetic benchmarks, but it is important to note that the Tesla P100 and Radeon Pro cards are professional/workstation parts, not gaming GPUs. In Doom specifically, the gaming-oriented RTX 5090 would likely outperform these rivals due to driver optimizations, but the benchmark scores suggest that the raw compute is similar.

If a user were to pair the i5-12600KF with a GPU like the AMD Radeon RX 6850M XT, the average score would be about 1.1% lower, which would translate to a negligible FPS difference in Doom. Similarly, pairing the RTX 5090 with a CPU like the Ryzen 7 5800X3D would yield a 0.3% difference in CPU score, which would not be perceptible in the measured FPS. The data suggests that this combo is well-balanced, and nearby alternatives would not change the playability verdict.

FAQ

Q: Can this PC run Doom at 4K Ultra settings?

A: Yes. The measured average FPS at 3840x2160 Ultra is 99.5 FPS, which is well above the 60 FPS playable threshold. The verdictByResolution lists Ultra as the best settings at 4K, with an average of 99.5 FPS.

Q: What is the highest settings preset that stays above 60 FPS at 1440p?

A: Ultra is the most demanding preset tested at 2560x1440, and it delivers an average of 176.5 FPS. This is 116.5 FPS above the playable threshold, so all settings are playable at 1440p.

Q: How does this combo rank compared to other tested systems?

A: The combo rank is 67 out of 3712 tested combinations, placing it in the top 1.8% of all systems tested for Doom. This is based on measured FPS data across all resolutions and settings.

Q: Is the CPU or GPU more important for Doom at 1080p?

A: At 1920x1080, the CPU becomes more relevant. The frame rate difference between Low (410.4 FPS) and Medium (389.9 FPS) is only 20.5 FPS, while at 4K the difference between Low and Medium is 21.5 FPS. However, the absolute frame rates at 1080p are much higher, indicating the CPU is nearing its limit.

Q: What are the nearest CPU alternatives to the i5-12600KF?

A: The nearest rivals are the Intel Core i9-10900K (0.3% lower avg score), AMD Ryzen 5 8500GE (0.3% higher), AMD Ryzen 7 6800U (0.3% lower), and AMD Ryzen 7 5800X3D (0.3% higher). All have deltaPct values within 0.3%, meaning performance would be nearly identical.

Q: Does the RTX 5090 have any close GPU competitors in this data?

A: The NVIDIA Tesla P100 PCIe 16 GB (0.3% lower), Tesla P100 PCIe 12 GB (0.6% lower), AMD Radeon RX 6850M XT (1.1% lower), and AMD Radeon Pro Vega 64X (1.4% higher) are the nearest rivals by average score. None of these are gaming-specific GPUs, so the RTX 5090 would still be preferable for Doom.

The Verdict

This PC can run Doom at every resolution and preset tested, with no exceptions. At 3840x2160, the best settings are Ultra, which delivers an average of 99.5 FPS—this is 39.5 FPS above the 60 FPS playable threshold. At 2560x1440, Ultra also provides the best experience, with an average of 176.5 FPS, which is 116.5 FPS above the threshold. At 1920x1080, Ultra achieves an average of 278.9 FPS, leaving 218.9 FPS of headroom above the playable line.

The data shows that this combination never dips below 99.5 FPS in any tested configuration, meaning even the most demanding preset at the highest resolution is comfortably playable. The verdictByResolution confirms that all four settings (Low, Medium, High, and Ultra) are playable at each resolution, with Ultra being the best setting in every case. The i5-12600KF and RTX 5090 pair together to deliver a Doom experience that far exceeds the 60 FPS target, making this a definitive yes for anyone looking to play the game at maximum quality. The only caveat is that at 1080p, the CPU begins to limit frame rates, but even that limit is above 278 FPS, which is far beyond what most displays can show.