Doom

The Intel Core i7-12700K paired with the NVIDIA GeForce GTX 1660 Ti presents a fascinating study in bottleneck dynamics within Doom (2016). The data shows a system where the GPU is definitively the limiting factor at higher resolutions, yet the CPU's substantial headroom becomes apparent at 1080p. This combination, ranked 1476th out of 1681 tested combos in this specific title, demonstrates that even a powerful processor cannot fully compensate for the graphical subsystem's constraints in a fast-paced FPS environment.

Resolution Scaling

The measured FPS data reveals a clear and predictable scaling pattern as resolution increases, but the rate of that scaling tells a compelling story about component limitations. At the "High" preset, performance drops from 108.6 FPS at 1920x1080 to 68.3 FPS at 2560x1440—a reduction of approximately 37%. Pushing further to 3840x2160 yields just 37.9 FPS, which is only 35% of the 1080p figure. This steep decline indicates that the GTX 1660 Ti is being overwhelmed by the pixel count at 4K, with the render workload growing quadratically as resolution increases.

Examining the "Low" preset provides even clearer evidence of GPU-bound behavior. The 1920x1080 result of 149.5 FPS drops to 97.1 FPS at 2560x1440, then falls to 49.7 FPS at 4K. The fact that even at the lowest settings, 4K performance is barely above 48 FPS suggests that the GPU's raw fill rate and memory bandwidth are the primary constraints. The GTX 1660 Ti's 288.0 GB/s memory bandwidth and 84.96 GPixel/s pixel rate are simply insufficient for 3840x2160 rendering in this title, regardless of how much load is removed from the shading units.

The scaling pattern across all presets shows remarkably consistent relative drops between 1440p and 4K. For instance, at Medium settings, the 82.3 FPS at 2560x1440 falls to 44.2 FPS at 4K—a 46% reduction, nearly identical to the 47% drop seen at High settings. This consistency implies that the limiting factor is resolution-dependent and scales predictably, which is characteristic of a GPU bottleneck rather than a CPU or memory constraint. The Intel Core i7-12700K, with its 12 cores and 20 threads, is unlikely to be the constraint here, as its benchmark scores (29,241 in Cinebench R23 multi-core) indicate massive headroom for a 2016 title.

Settings Recommendations

The data suggests that the "High" preset offers the most balanced experience for this hardware combination, particularly at 1920x1080 and 2560x1440. At 1080p, the jump from High (108.6 FPS) to Ultra (92.4 FPS) represents a 15% performance penalty, while the visual gains are typically marginal in Doom's optimized Vulkan engine. Conversely, dropping from High to Medium (132.9 FPS) provides a substantial 22% FPS boost, but the visual fidelity loss may be more noticeable than the difference between High and Ultra.

For players targeting 1440p, the High preset at 68.3 FPS is viable, though it hovers near the 60 FPS threshold. The Medium preset at 82.3 FPS offers a more comfortable margin, making it the safer recommendation for maintaining consistent frame times during intense combat sequences. At 4K, no preset achieves playable performance—even Low settings only reach 49.7 FPS, which falls short of the 60 FPS target many FPS players prefer. The Ultra preset at 4K (33.1 FPS) is essentially unplayable for competitive play, though it could serve for slower-paced exploration.

The "Low" preset at 1080p (149.5 FPS) is the only configuration that approaches high-refresh-rate territory, making it the choice for players with 144Hz monitors who prioritize frame rate over visual quality. However, given that Doom's combat rewards high frame rates, the 132.9 FPS at Medium settings might represent the sweet spot—maintaining triple-digit performance while preserving some visual detail. The data ultimately indicates that this combo is best utilized at either 1080p Medium/High or 1440p Medium, with the latter providing a resolution upgrade without sacrificing smoothness.

CPU Role

The Intel Core i7-12700K's role in these results is primarily that of an enabler rather than a participant in the bottleneck. With a base clock of 3.60 GHz and boost up to 5.00 GHz, this Alder Lake processor provides far more computational headroom than Doom requires. The CPU's 89th percentile ranking among all tested processors, combined with a Cinebench R23 multi-core score of 29,241, suggests it would not struggle with the game's threading model. The 12 cores and 20 threads are overkill for a 2016 title, meaning the game's main thread and rendering pipeline are never starved for processing power.

The benchmark results show that the CPU maintains its advantage even in synthetic multi-threaded tests. The Passmark multi-thread score of 34,404 and Geekbench multi-core score of 13,892 indicate strong parallel performance, but Doom's engine is not known for scaling across dozens of threads. The single-core performance, evidenced by a Geekbench single-core score of 2,561 and Cinebench R23 single-core of 4,128, is what matters most for gaming. These figures place the i7-12700K within 0.8% of the Intel Core i7-13800H and 0.6% of the Intel Core i7-13700T in average benchmark scores, confirming its position as a high-end desktop processor.

The data implies that at 1080p Low settings, where the GPU is least stressed, the CPU could become a factor if the frame rate were higher. The 149.5 FPS result at 1080p Low is likely still GPU-limited, given that the GTX 1660 Ti's Passmark G3D score of 12,871 places it in the 55th percentile. A more powerful GPU would likely push frame rates higher, but the i7-12700K would still have ample reserve. The socket 1700 platform and DDR4/DDR5 memory support mean this CPU is well-equipped for future GPU upgrades without requiring a platform change.

How This Combo Ranks

The combo rank of 1476 out of 1681 tested combinations places this system in the lower 12th percentile overall, which initially seems surprising given the i7-12700K's strength. This ranking reflects the GTX 1660 Ti's position as the limiting component—the GPU's 55th percentile ranking among all GPUs drags the combined score down significantly. The 4K results, which are uniformly poor across all settings, disproportionately impact the ranking since higher resolutions demonstrate the combo's weaknesses most clearly.

Comparing the GPU to its nearest rivals provides context for these results. The GTX 1660 Ti's average benchmark score of 13,925 is just 0.4% higher than the AMD Radeon RX 570X (13,871) and 0.8% higher than both the NVIDIA RTX A2000 Mobile (13,821) and the GeForce GTX 680 (13,812). This clustering indicates that the 1660 Ti is not significantly ahead of its closest competitors, meaning the combo's ranking is typical for this GPU tier. The CPU, by contrast, sits just 0.3% below the AMD Ryzen 7 PRO 5845 and 0.6% above the Intel Core i7-13700T, showing it is well-matched against comparable processors.

The 1681 total combos in the database include systems with far more powerful GPUs paired with weaker CPUs, which explains why this combo ranks below the median despite having a strong CPU. The data suggests that for Doom, the GPU is the primary determinant of overall system ranking, and the i7-12700K's contribution is to ensure the GPU is never held back. This combo would likely rank higher in CPU-intensive titles, but in Doom's GPU-bound scenarios, the ranking reflects the 1660 Ti's mid-range status.

FAQ

*Q: Can this combo run Doom at 4K with playable frame rates?*

A: No. The highest 4K result is 49.7 FPS at Low settings, which falls below the 60 FPS threshold. At High and Ultra settings, performance drops to 37.9 FPS and 33.1 FPS, respectively, making 4K impractical for smooth gameplay.

Q: What is the best resolution and settings combination for competitive play?

A: At 1920x1080, the Low preset achieves 149.5 FPS, which is the highest measured result. For a balance of visuals and performance, Medium at 1080p (132.9 FPS) or High at 1440p (68.3 FPS) are reasonable alternatives depending on preference.

Q: Is the CPU or GPU the bottleneck in this system?

A: Benchmark data indicates the GPU is the limiting factor. The GTX 1660 Ti's 55th percentile ranking versus the i7-12700K's 89th percentile, combined with consistent FPS drops as resolution increases, confirms the GPU constrains performance.

Q: How does the i7-12700K compare to its nearest CPU rivals?

A: The i7-12700K's average benchmark score of 35,684 is 0.3% lower than the AMD Ryzen 7 PRO 5845 and 0.7% lower than the Intel Core i5-14500HX, but 0.6% higher than the i7-13700T and 0.8% higher than the i7-13800H.

Q: What is the GTX 1660 Ti's closest GPU competitor?

A: The AMD Radeon RX 570X has an average score of 13,871, which is 0.4% lower than the 1660 Ti's 13,925. The NVIDIA RTX A2000 Mobile and GTX 680 are both 0.8% lower, while the Tesla K10 is 0.7% higher.

Q: Does the 6 GB VRAM affect performance at higher resolutions?

A: The data shows significant FPS drops at 4K across all settings, but without explicit VRAM utilization metrics, the 6 GB GDDR6 capacity cannot be directly isolated as the cause. The 192-bit bus and 288.0 GB/s bandwidth are more likely limiting factors.

Measured FPS Breakdown

At 1920x1080, the system delivers its strongest performance. The Low preset achieves 149.5 FPS, representing the absolute peak for this combo. Medium settings reach 132.9 FPS, High produces 108.6 FPS, and Ultra yields 92.4 FPS. The spread from Low to Ultra is 57.1 FPS, indicating that settings have a substantial impact at this resolution, with the GPU still managing to keep frame rates high even at maximum quality.

Moving to 2560x1440, performance drops noticeably but remains respectable. Low settings hit 97.1 FPS, which is still above 60 FPS. Medium delivers 82.3 FPS, High produces 68.3 FPS, and Ultra falls to 57.4 FPS—just below the 60 FPS target. The gap between Low and Ultra narrows to 39.7 FPS, suggesting that at 1440p, the GPU's limitations become more pronounced as settings increase.

At 3840x2160, the GTX 1660 Ti struggles across the board. Low settings achieve 49.7 FPS, Medium reaches 44.2 FPS, High manages 37.9 FPS, and Ultra drops to 33.1 FPS. The difference between Low and Ultra is only 16.6 FPS, indicating that even at the lowest settings, the GPU is severely constrained. The 4K results consistently fall below 50 FPS, making this resolution impractical for smooth gameplay regardless of quality preferences.

GPU Role

The NVIDIA GeForce GTX 1660 Ti's specifications reveal why it struggles at higher resolutions in Doom. Built on the Turing architecture with a 12 nm process from TSMC, this GPU features 1,536 shading units, 96 TMUs, and 48 ROPs. The boost clock of 1770 MHz and base clock of 1500 MHz provide moderate computational throughput, with FP32 performance rated at 5.437 TFLOPS. These figures place the GPU solidly in the mid-range tier, as confirmed by its 55th percentile ranking among all GPUs.

Memory bandwidth appears to be a critical factor in the 4K results. The 6 GB GDDR6 memory operates at 12 Gbps effective across a 192-bit bus, yielding 288.0 GB/s of bandwidth. At 3840x2160, the sheer volume of pixel data required to fill the frame buffer likely saturates this bandwidth, explaining why even Low settings cannot exceed 49.7 FPS. The texture rate of 169.9 GTexel/s and pixel rate of 84.96 GPixel/s further support the conclusion that the GPU's memory subsystem and rasterization throughput are the primary bottlenecks at 4K.

The GPU's benchmark results paint a consistent picture. A Passmark G3D score of 12,871 and 3DMark Steel Nomad DX12 score of 1,061 indicate moderate DirectX 12 performance, which is relevant since Doom supports Vulkan and DX12. The Geekbench Vulkan score of 58,014 suggests the GPU handles modern APIs reasonably well, but the raw compute power (5,226 in Passmark GPU Compute) is insufficient for 4K rendering in this demanding title. The GPU's end-of-life production status and 2019 release date mean it predates many modern optimizations, though its DirectX 12 (12_1) and Vulkan 1.4 support ensure compatibility with Doom's rendering requirements.