Doom

The pairing of the Intel Core i7-12700K with the AMD Radeon RX 580 in Doom presents a fascinating study in bottleneck dynamics. The CPU is a modern 12-core powerhouse, while the GPU is an older Polaris architecture card from a previous generation. The benchmark data reveals a system where the graphics card is almost certainly the limiting factor, a hypothesis strongly supported by how performance scales with resolution and settings.

Resolution Scaling

The measured FPS data shows a clear and dramatic decline as resolution increases, which is the classic signature of a GPU-bound scenario. At 1080p with Ultra settings, the combo delivers 61.4 FPS. Moving to 1440p drops that to 41.9 FPS, a reduction of roughly 32%. The jump to 4K is even more punishing, with the Ultra preset falling to just 22 FPS, a further 47% decline from the 1440p figure. This steep, consistent drop with every pixel count increase points directly at the Radeon RX 580 as the component that is saturated.

The pattern holds across all settings presets. At Low settings, the system achieves 100.5 FPS at 1080p, but this falls to 63.8 FPS at 1440p and then to 36.4 FPS at 4K. The frame rate is nearly halved with each major resolution step, indicating that the GPU's fill rate and memory bandwidth are being overwhelmed. The Intel Core i7-12700K, with its high single-thread score of 4128 in Cinebench R23, is unlikely to be the constraint here, as its performance headroom is vast compared to the demands of this title.

This data implies that the gameplay experience is entirely dependent on the graphics settings and resolution, with the CPU having little influence on the final frame rate. The scaling is so linear that it suggests the RX 580's 256-bit memory bus and 256.0 GB/s bandwidth are the primary channels through which performance is being throttled. For a game like Doom, which is known for its fast pace, the 4K Ultra result of 22 FPS would be unplayable, while the 1080p Low result of 100.5 FPS would be exceptionally smooth.

CPU Role

The Intel Core i7-12700K is a formidable processor on paper, with 12 cores and 20 threads based on the Alder Lake architecture. Its benchmark scores are impressive, with a Cinebench R23 multicore score of 29241 and a single-core score of 4128. It ranks in the 89th percentile of all CPUs, placing it well above the vast majority of processors tested. However, in this specific Doom configuration, its role appears to be largely supportive rather than performance-defining.

The evidence for this is in the FPS consistency across resolutions. If the CPU were the bottleneck, we would expect to see similar frame rates regardless of resolution, as the CPU's workload (physics, game logic, draw calls) remains relatively constant. Instead, we see FPS plummet as resolution rises, which means the CPU is waiting on the GPU to finish rendering frames. The i7-12700K's high boost clock of 5.00 GHz and strong single-thread performance ensure it can feed the RX 580 without stuttering, but it is not the component that sets the performance ceiling.

The CPU's nearest rivals in the benchmark database include the AMD Ryzen 7 PRO 5845 and Intel Core i7-13700T, with average scores within a fraction of a percent of the i7-12700K's average of 35684. This indicates that the i7-12700K is in a very tight performance cluster. Yet, swapping it for any of these CPUs would have a negligible impact on the Doom frame rates shown here, as the RX 580 would still be the limiting factor. The data suggests that the CPU's vast computational resources are largely idle, waiting for the GPU to catch up.

GPU Role

The AMD Radeon RX 580, with its Polaris 20 chip and 8 GB of GDDR5 memory, is the clear performance bottleneck in this pairing. Its benchmark percentile of 53 places it in the lower half of all GPUs, and its average benchmark score of 13559 is modest by modern standards. The measured FPS data in Doom reflects this, with the card struggling to maintain high frame rates at higher resolutions and settings.

The GPU's clock speeds peak at 1340 MHz boost, and it has a memory bandwidth of 256.0 GB/s. These specifications are adequate for 1080p gaming, as evidenced by the 100.5 FPS at Low settings. However, the card's 32 ROPs and 6.175 TFLOPS of FP32 performance become insufficient when pixel count increases. At 4K Ultra, the card drops to 22 FPS, showing that it is completely overwhelmed by the rendering load. The data indicates that the RX 580's architectural limits, not the CPU's capabilities, dictate the performance envelope.

The GPU's nearest rivals include the NVIDIA GeForce GTX 570 and GTX 950, with average scores differing by only 0.1% or less. This places the RX 580 in a performance tier that is now several generations old. In the context of this benchmark, the RX 580's age is the defining factor. It is a capable card for its era, but when paired with a top-tier modern CPU like the i7-12700K, the imbalance is stark. The GPU is holding back what would otherwise be a very high-performance system.

How This Combo Ranks

In the grand database of tested combinations, this specific pairing of the Intel Core i7-12700K and AMD Radeon RX 580 ranks 1557 out of 1681 combos. This places it in the bottom 8% of all tested systems. This low ranking is almost entirely attributable to the GPU, as the CPU alone ranks in the 89th percentile. The combo rank reflects the real-world gaming performance, where the weak link drags down the entire system's standing.

This ranking is a powerful illustration of the importance of balance in a PC build. The i7-12700K is a top-tier processor, but its capabilities are essentially wasted when paired with a GPU that cannot utilize its full potential. The data shows that this combo performs worse than 92% of other tested combinations, which is a stark contrast to the CPU's individual high standing. It suggests that a user would see far greater performance gains from upgrading the GPU than from any CPU change.

The rank of 1557 out of 1681 is a clear warning sign for anyone considering this build. It is a lopsided configuration where the CPU's power is untapped. The benchmark results indicate that the system's overall performance is severely constrained by the GPU, and the combo ranking accurately reflects this suboptimal pairing. For a game like Doom, this means the experience is far below what the CPU alone could support.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this combo depend heavily on the target resolution and desired frame rate. For a smooth 60 FPS experience, 1080p is the only viable option. At 1080p, the High preset delivers 77.5 FPS, and the Medium preset delivers 91.1 FPS, both comfortably above the 60 FPS threshold. The Ultra preset at 1080p drops to 61.4 FPS, which is still playable but leaves little headroom for intense action scenes.

At 1440p, the situation becomes more challenging. The High preset achieves 48 FPS, and Medium achieves 61 FPS. The Medium preset is the only one that hits the 60 FPS target at this resolution. Low settings at 1440p reach 63.8 FPS, but the visual quality trade-off is significant. For 4K gaming, the data shows that no preset is truly playable, with High at 23.5 FPS and Low at 36.4 FPS. These frame rates are too low for a fast-paced FPS.

The data suggests that the best experience for this combo is to play at 1080p with the High preset, which offers a strong balance of visual fidelity and performance at 77.5 FPS. If a higher frame rate is preferred, the Medium preset at 91.1 FPS is an excellent choice. Dropping to Low at 1080p yields 100.5 FPS, but the visual downgrade is noticeable. For 1440p, the Medium preset is the only reasonable choice to maintain fluidity, while 4K should be avoided entirely on this hardware.

Measured FPS Breakdown

The following is a complete breakdown of the measured average FPS for every tested configuration of resolution and settings:

• 1920x1080 Low: 100.5 FPS
• 1920x1080 Medium: 91.1 FPS
• 1920x1080 High: 77.5 FPS
• 1920x1080 Ultra: 61.4 FPS
• 2560x1440 Low: 63.8 FPS
• 2560x1440 Medium: 61.0 FPS
• 2560x1440 High: 48.0 FPS
• 2560x1440 Ultra: 41.9 FPS
• 3840x2160 Low: 36.4 FPS
• 3840x2160 Medium: 33.4 FPS
• 3840x2160 High: 23.5 FPS
• 3840x2160 Ultra: 22.0 FPS

These numbers tell a consistent story. At 1080p, the RX 580 is capable of delivering playable frame rates across all presets, with even Ultra exceeding 60 FPS. The jump to 1440p cuts performance by roughly 35-40% across the board, making only the Low and Medium presets viable for smooth gameplay. The jump to 4K is catastrophic, with all presets falling below 37 FPS, which is far too low for a competitive or action-oriented title. The data shows a clear performance hierarchy, with each resolution step imposing a significant and predictable penalty.

FAQ

Q: Can this combo run Doom at 4K?

A: The data indicates no. Even at Low settings, the average FPS at 3840x2160 is only 36.4 FPS. At Ultra settings, it drops to 22.0 FPS, which is not a playable experience for a fast-paced FPS.

Q: What is the best settings preset for 1080p gaming?

A: The High preset at 1920x1080 delivers 77.5 FPS, which is a strong balance of quality and speed. For a higher frame rate, the Medium preset achieves 91.1 FPS, while the Low preset reaches 100.5 FPS.

Q: Is the Intel Core i7-12700K the bottleneck in this system?

A: No. The data shows that FPS drops significantly as resolution increases, which is characteristic of a GPU bottleneck. The i7-12700K ranks in the 89th percentile of CPUs, while the RX 580 ranks in the 53rd percentile, indicating the GPU is the limiting component.

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

A: This specific pairing ranks 1557 out of 1681 tested combos, placing it in the bottom 8% of all systems in the database for this game.

Q: What is the highest playable frame rate available at 1440p?

A: The Medium preset at 2560x1440 delivers 61.0 FPS, which is the only preset at that resolution that meets the 60 FPS standard. The Low preset reaches 63.8 FPS, which is also playable.

Q: How does the RX 580's performance compare to its nearest rivals?

A: The RX 580 has an average benchmark score of 13559. Its closest rivals, the NVIDIA GeForce GTX 570 and GTX 950, have scores of 13564 and 13549, respectively, with a deltaPct of 0% and 0.1%. This indicates they perform nearly identically in synthetic benchmarks.