Doom

The AMD Ryzen 9 9950X3D paired with the NVIDIA GeForce GTX 1660 SUPER presents a dramatic bottleneck scenario in Doom. This combination pairs one of the fastest consumer CPUs on the market with a GPU that, while competent, is clearly the limiting factor in this title. The benchmark data shows a system where CPU headroom is vast, but GPU constraints dictate playability, especially at higher resolutions and settings.

Resolution Scaling

The FPS drop from 1080p to 4K is stark and reveals a purely GPU-bound workload. At 1080p with Low settings, the combo achieves 150.2 FPS. Moving to 1440p Low drops this to 98.1 FPS, a 34.7% reduction. Pushing further to 4K Low yields 53.6 FPS, which is a 64.3% reduction from the 1080p baseline. This steep, linear decline is the classic signature of a graphics card that is saturated; the CPU is not the constraint at any point.

The pattern intensifies with higher settings. At Ultra settings, the 1080p score of 91.1 FPS falls to 58.6 FPS at 1440p, and then plummets to 28.6 FPS at 4K. The gap between Low and Ultra widens as resolution increases. At 1080p, Ultra is 39.3% slower than Low. At 4K, that gap grows to 46.6%. This indicates that the GTX 1660 SUPER’s rendering pipeline is overwhelmed by the combined load of higher pixel count and more complex effects, making the 9950X3D's immense processing power largely irrelevant in this specific configuration.

How This Combo Ranks

In the grand scheme of tested hardware combinations for Doom, this pairing sits at rank 1479 out of 1681 combos. This places it in the bottom 12% of all tested systems, which is a surprisingly low position given the flagship CPU. The data suggests that the GTX 1660 SUPER is dragging the entire system down. The 9950X3D’s benchmark percentile of 96 against all CPUs means it outperforms 96% of processors, yet the combo rank is poor because the GPU's percentile of 55 against all GPUs is far lower.

The disparity between the components is the defining characteristic. The CPU is a top-tier performer, but the GPU is a mid-range part from a previous generation. In a game like Doom, which is well-optimized and can scale across many threads, the 16-core, 32-thread 9950X3D is never the bottleneck. The measured FPS is entirely a function of the GTX 1660 SUPER's capabilities. Therefore, the combo rank reflects the GPU's performance tier, not the CPU's. This is a crucial insight for anyone building a system: a high-end CPU cannot compensate for a low-end GPU in a graphically intensive title.

Settings Recommendations

Based on the measured rows, the optimal experience balances frame rate and visual fidelity. For 1080p, the High preset at 108.5 FPS is the sweet spot. It provides a significant jump in visual quality over Medium (127.4 FPS) while maintaining a frame rate well above the 60 FPS threshold for smooth gameplay. Dropping to Low for 150.2 FPS is not necessary for a game like Doom, where the action is fast but 108 FPS is already very fluid.

For 1440p, High at 68.7 FPS is the best choice. It stays above 60 FPS and looks far better than Medium (81.9 FPS) or Low (98.1 FPS). The Ultra preset at 58.6 FPS is playable but dips below the 60 FPS line, which can be noticeable in a fast-paced shooter. At 4K, the situation is dire. Only Low at 53.6 FPS is playable, but even that is not ideal. Medium (48.1 FPS) and High (37.1 FPS) are too slow for a competitive experience, and Ultra (28.6 FPS) is a slideshow. For 4K, the recommendation is to stick with Low or consider lowering the resolution.

Measured FPS Breakdown

The complete dataset provides a clear picture of performance scaling.

At 1920x1080, the GTX 1660 SUPER delivers strong results. Low settings produce an average of 150.2 FPS. Medium settings yield 127.4 FPS. High settings drop to 108.5 FPS. Ultra settings are still smooth at 91.1 FPS. This resolution is clearly the card's comfort zone, where it can leverage the CPU's headroom.

At 2560x1440, the load increases significantly. Low settings average 98.1 FPS. Medium settings drop to 81.9 FPS. High settings fall to 68.7 FPS. The Ultra preset manages 58.6 FPS, which is the first time the system dips below the 60 FPS mark. The drop from 1080p to 1440p costs roughly 35-40% of the frame rate, depending on the preset.

At 3840x2160, the GTX 1660 SUPER is out of its depth. Low settings average 53.6 FPS. Medium settings fall to 48.1 FPS. High settings are at 37.1 FPS. The Ultra preset plummets to 28.6 FPS, which is not playable for a fast-paced FPS. The 4K results clearly show the GPU's memory bandwidth and shading power are insufficient for this pixel count.

GPU Role

The GTX 1660 SUPER is the definitive bottleneck in this configuration. Its 6 GB of GDDR6 memory on a 192-bit bus provides 336.0 GB/s of bandwidth. This is sufficient for 1080p and 1440p but becomes a limiting factor at 4K, where the demand for texture data and frame buffer space increases dramatically. The card's 1408 shading units and 48 ROPs, running at a boost clock of 1785 MHz, are just not enough to fill a 4K framebuffer at high settings.

The GPU's benchmark results reinforce this. Its Passmark G3D score of 12699 puts it in the 55th percentile, and its nearest rivals include the AMD Radeon RX Vega 11 and Intel Iris Xe MAX Graphics, which are integrated or low-end discrete solutions. This shows that the GTX 1660 SUPER is positioned at the entry-level of dedicated gaming GPUs. In Doom, the data shows that the CPU is waiting for the GPU at every turn. The 9950X3D's 89.6 GB/s memory bandwidth is irrelevant here; the system's memory bandwidth is capped by the GPU's 336.0 GB/s interface. The Ryzen 9's 128 MB of L3 cache also cannot help, as the game's data is being processed by the GPU, not the CPU.

FAQ

Q: Is the AMD Ryzen 9 9950X3D too much for the GTX 1660 SUPER in Doom?

A: Yes. The data shows the combo ranks 1479 out of 1681, and the FPS is consistently GPU-limited. The CPU's massive processing power has no effect on the frame rates, which are dictated entirely by the GTX 1660 SUPER.

Q: What is the best resolution to play Doom with this combo?

A: 1920x1080 is the optimal resolution. All presets are playable, with High at 108.5 FPS being the best balance. At 1440p, High at 68.7 FPS is acceptable, but 4K is only playable on Low settings at 53.6 FPS.

Q: Should I use Ultra settings at 1440p?

A: The measured data shows Ultra at 58.6 FPS. While it is playable, it falls just below the 60 FPS threshold. The High preset at 68.7 FPS offers a smoother experience with a minimal visual difference.

Q: Why is the 4K performance so poor?

A: The GTX 1660 SUPER's 6 GB of memory and 336.0 GB/s bandwidth are insufficient for the 3840x2160 resolution. The highest playable preset is Low at 53.6 FPS, with Ultra dropping to 28.6 FPS.

Q: Is the CPU's performance relevant in this game?

A: Not in this pairing. The CPU is in the 96th percentile of all processors, but the combo rank is in the bottom 12%. This indicates the GPU is the sole performance limiter. The CPU's potential is entirely untapped.

Q: How does this combo compare to similar systems?

A: The data shows it ranks 1479 out of 1681 tested combos. This places it in the lower tier of systems, primarily due to the GPU's 55th percentile ranking. The CPU's high performance is negated by the GPU's limitations.