Doom

The AMD Ryzen 5 5600GT paired with the NVIDIA GeForce RTX 4080 produces a fascinating dataset in Doom, one that clearly delineates the boundaries of CPU and GPU influence. At 1080p, the combination delivers frame rates that border on the absurd, but the scaling curve to 4K reveals where the bottleneck shifts. This analysis breaks down the measured performance, contextualizes the hardware’s standing among rivals, and offers concrete settings guidance based on the provided figures.

Resolution Scaling

The frame rate drop from 1080p to 4K is the most telling metric for this combo. At 1080p with Medium settings, the system averages 334 FPS. Moving to 1440p drops that to 226 FPS, and at 4K it falls further to 123 FPS. This represents a 63% reduction in average frame rate from 1080p to 4K (350 FPS at Low down to 141 FPS at Low), which is a classic sign of the GPU becoming the limiting factor as pixel count rises.

The pattern is consistent across all settings. At Ultra, the system delivers 241 FPS at 1080p, 156 FPS at 1440p, and 85 FPS at 4K. The delta between 1080p and 1440p is roughly 35% on High settings (295 to 191 FPS), while the delta between 1440p and 4K is about 45% on the same preset (191 to 104 FPS). This shows that the scaling is not linear; the jump to 4K requires 2.25 times the pixels of 1440p, and the performance cost reflects that geometric increase in workload.

At 1080p, the data suggests the CPU is the primary constraint. The Ryzen 5 5600GT, with its 6 cores and 12 threads, tops out at 350 FPS on Low settings. Even on Ultra, it manages 241 FPS, which is a remarkably high ceiling for a mid-range processor. The fact that the RTX 4080 does not push frame rates beyond 350 FPS at any 1080p setting indicates that the GPU has headroom left on the table; it is waiting on the processor to feed it data.

At 4K, the situation inverts completely. The RTX 4080 becomes the clear bottleneck. The gap between Low (141 FPS) and Ultra (85 FPS) at 4K is 56 FPS, demonstrating how sensitive the GPU is to visual fidelity settings when the pixel count is maxed out. The CPU’s influence fades, as the frame-to-frame workload is dominated by the GPU’s rendering tasks.

FAQ

*Q: Is the Ryzen 5 5600GT a bottleneck for the RTX 4080 in Doom at 1080p?*

A: Yes, the data strongly suggests this. At 1080p Low, the combo averages 350 FPS, and at 1080p Ultra it averages 241 FPS. The CPU’s single-thread performance (3DMark single-thread score of 913) and 12 threads appear to cap the system’s output, preventing the RTX 4080 from reaching its full potential at lower resolutions.

Q: How does the RTX 4080 perform relative to its closest rivals in synthetic benchmarks?

A: The RTX 4080’s average benchmark score is 54,247, placing it 0.1% ahead of the RTX 4080 SUPER (54,209) and 1.1% behind the AMD Radeon Pro W5700X (54,828). It trails the AMD Radeon RX 6750 GRE 12 GB by 2.6% (55,698) and the AMD Radeon 8060S by 2.7% (55,757). These deltas are small, indicating near-parity in raw compute potential.

Q: What is the frame rate difference between Low and Ultra settings at 1440p?

A: At 1440p, Low settings yield an average of 260 FPS, while Ultra settings yield 156 FPS. That is a 104 FPS drop, or a 40% reduction in frame rate, for the visual quality upgrade. Medium settings sit in the middle at 226 FPS.

Q: Does the 4K Ultra preset maintain a playable frame rate?

A: Yes, it remains playable. The 4K Ultra preset averages 85 FPS, with no minimum FPS data provided. This is above the 60 FPS threshold for smooth gameplay, but it is the lowest average in the entire measured dataset.

Q: How does the Ryzen 5 5600GT rank against its nearest CPU rivals?

A: The CPU has an average benchmark score of 20,733, which is 0.3% behind the Intel Core i5-12490F (20,802) and 0.4% behind the Intel Xeon 6325P (20,821). It also trails the Intel Core Ultra 5 125U (20,826) and AMD EPYC 7J13 (20,845) by 0.4% and 0.5%, respectively. These are negligible differences.

Q: What is the highest average frame rate recorded for this combo?

A: The highest average is 350 FPS, achieved at 1920x1080 with Low settings. The lowest average is 85 FPS at 3840x2160 with Ultra settings.

GPU Role

The RTX 4080 is the dominant force in this pairing, and its specifications explain the 4K performance. It features 16 GB of GDDR6X memory on a 256-bit bus, providing 716.8 GB/s of bandwidth. This memory subsystem is crucial for Doom at 4K, where texture data and geometry require substantial bandwidth to avoid stuttering. The measured 4K Medium average of 123 FPS with a minimum of 104 FPS indicates that the memory bandwidth is sufficient to maintain steady frame pacing in this title.

The GPU’s clock speeds also play a role. With a base clock of 2205 MHz and a boost clock of 2505 MHz, the RTX 4080 scales its frequency based on thermal and power headroom. The benchmark results show that at 4K High, the system achieves 104 FPS, which is exactly 19 FPS lower than at 4K Medium (123 FPS). This 15% drop suggests that the GPU is hitting its compute limits as the shader load increases, rather than being constrained by memory capacity.

The Ada Lovelace architecture’s 76 RT cores and 304 tensor cores are present in the specification, but Doom (2016) does not leverage ray tracing or DLSS in the measured data. Therefore, the performance figures are purely rasterization-based. The 48.74 TFLOPS of FP32 compute is the relevant metric here, and it scales well with the resolution increases observed. The GPU’s percentile ranking of 86 versus all GPUs places it in the upper echelon, though the 4K Ultra result of 85 FPS shows that even this hardware is not immune to the demands of maxed-out settings at high resolution.

How This Combo Ranks

In the database of tested combinations, this specific pairing of the Ryzen 5 5600GT and RTX 4080 holds a combo rank of 313 out of 3,712 combinations. This places it in the top 8.4% of all tested systems, which is a strong result given the CPU’s mid-range positioning. The percentile data for the CPU (74th) and GPU (86th) suggests that the GPU is the primary driver of this ranking, pulling the overall score up.

The ranking implies that while the CPU is not a top-tier part (it sits at the 74th percentile versus all CPUs), the combination’s performance in Doom is highly competitive. The nearest CPU rivals, such as the Intel Core i5-12490F with a delta of -0.3%, would likely produce similar results when paired with the same GPU. The GPU’s nearest rival, the RTX 4080 SUPER with a delta of +0.1%, would be expected to edge out this combo in the ranking, but the difference is marginal.

It is important to note that this rank is specific to Doom. The game’s engine is known for scaling well across hardware, and the high frame rates achieved here are proof of that optimization. A more demanding title would likely drop this combo’s rank, as the CPU would become a more significant bottleneck at lower resolutions.

Settings Recommendations

Based on the measured FPS rows, the optimal balance of visual quality and performance depends heavily on the target resolution.

For 4K (3840x2160), the Medium preset is the sweet spot. It delivers an average of 123 FPS with a minimum of 104 FPS, which is well above the 60 FPS standard for smooth play. High settings drop to 104 FPS average, which is still playable but offers less headroom for demanding scenes. Ultra settings at 85 FPS are acceptable, but the 38 FPS gap between Medium and Ultra may not justify the visual improvement for most users.

For 1440p (2560x1440), the High preset is recommended. It averages 191 FPS, which is more than enough for high-refresh-rate monitors (144Hz or 165Hz). Ultra settings at 156 FPS also work well for 144Hz displays, but the High preset offers a 35 FPS advantage while likely looking very similar. Low settings at 260 FPS are only useful for competitive play where frame rate trumps visuals.

For 1080p (1920x1080), the Ultra preset is the logical choice. It averages 241 FPS, which exceeds the refresh rate of most 240Hz monitors. The Medium preset at 334 FPS and Low at 350 FPS offer marginal gains that are unlikely to be perceptible on standard displays. The CPU bottleneck is evident here, as the frame rate ceiling is hard-capped by the processor’s ability to issue draw calls.

Measured FPS Breakdown

The following table breaks down the exact measured averages for each resolution and settings combination.

| Resolution | Settings | Average FPS | Minimum FPS | Maximum FPS |

|------------|----------|-------------|-------------|-------------|

| 3840x2160 | Low | 141 | — | — |

| 3840x2160 | Medium | 123 | 104 | 141 |

| 3840x2160 | High | 104 | — | — |

| 3840x2160 | Ultra | 85 | — | — |

| 2560x1440 | Low | 260 | — | — |

| 2560x1440 | Medium | 226 | 192 | 260 |

| 2560x1440 | High | 191 | — | — |

| 2560x1440 | Ultra | 156 | — | — |

| 1920x1080 | Low | 350 | — | — |

| 1920x1080 | Medium | 334 | 284 | 384 |

| 1920x1080 | High | 295 | — | — |

| 1920x1080 | Ultra | 241 | — | — |

The data shows a consistent pattern: the gap between Low and Ultra narrows as resolution increases. At 1080p, the spread is 109 FPS (350 to 241). At 1440p, it is 104 FPS (260 to 156). At 4K, it narrows to 56 FPS (141 to 85). This confirms that the CPU limits the lower-resolution performance, while the GPU becomes the sole bottleneck at 4K, where the settings-based scaling is more moderate. The Medium presets consistently provide the most stable minimum FPS figures, with 104 at 4K, 192 at 1440p, and 284 at 1080p.