Doom

The AMD Ryzen 7 7800X3D paired with the AMD Radeon RX 570 presents a striking study in component imbalance when running Doom. The data reveals a system where a top-tier modern processor is yoked to a graphics card from a previous era, producing frame rates that are entirely dictated by the GPU’s capabilities. The measured FPS across resolutions paints a clear picture of where the bottleneck resides, and the ranking among other tested combos confirms this pairing’s position at the lower end of the performance spectrum.

Resolution Scaling

The frame rate progression from 1080p to 4K is a textbook demonstration of GPU-bound scaling. At 1920x1080 with High settings, the combo produces 65.6 FPS. Moving to 2560x1440 drops this to 42.8 FPS, and at 3840x2160 the average collapses to 22.3 FPS. This represents a steep decline of roughly 66% from 1080p to 4K. The pattern is consistent across all settings presets, indicating that the rendering pipeline is saturated by the Radeon RX 570’s processing limits rather than any CPU constraint.

The data implies that the Ryzen 7 7800X3D is effectively idle during these tests. Its 8 cores and 16 threads, with a boost clock of 5.00 GHz, are far more capable than what Doom’s rendering workload demands at these resolutions. The GPU’s fillrate and shading throughput, constrained by its 32 ROPs and 2048 shading units, become the sole arbiters of performance. This is why the FPS drop is so pronounced when pixel count increases; the RX 570 simply cannot maintain its output as the fragment processing load multiplies. The scaling curve suggests that even at 1080p, the GPU is nearing its ceiling, as the jump from 65.6 FPS at High to 93.7 FPS at Low shows significant headroom only when graphical complexity is drastically reduced.

FAQ

Q: What is the highest average frame rate achieved by this combo in Doom?

A: The best result is 93.7 FPS, recorded at 1920x1080 with Low settings. This is the only configuration that approaches a high-refresh experience, and it still requires minimal graphical fidelity.

Q: How does the combo perform at 4K Ultra settings?

A: At 3840x2160 with the Ultra preset, the average FPS drops to 17.8. This is effectively unplayable for a fast-paced FPS, highlighting the GPU’s severe limitations at this resolution.

Q: Is there a significant difference between Medium and High settings at 1440p?

A: Yes, the data shows 51.4 FPS for Medium and 42.8 FPS for High at 2560x1440. The 8.6 FPS difference suggests that High settings impose a noticeable additional load on the RX 570’s shader units.

Q: What is the combo’s overall ranking among all tested systems for Doom?

A: The combo ranks 1644 out of 1681 total combinations. This places it in the bottom 2.2% of all tested pairings, indicating that this specific CPU-GPU match is highly suboptimal for this title.

Q: Does the CPU’s performance in synthetic benchmarks translate to better Doom frame rates?

A: No. The Ryzen 7 7800X3D scores 29149 in Cinebench R23 multi-core and 4115 in single-core, placing it in the 87th percentile of all CPUs. However, these strengths are irrelevant here, as the GPU constrains the frame rate to levels far below what the CPU could support.

Q: How does the GPU’s average benchmark score relate to its Doom performance?

A: The RX 570 has an average benchmark score of 30158, putting it in the 74th percentile of all GPUs. Despite this seemingly mid-range standing, its Doom results at 4K are below 30 FPS on every preset, showing that its percentile ranking does not guarantee playable performance in this specific game at higher resolutions.

CPU Role

The Ryzen 7 7800X3D is a Zen 4 architecture processor built on a 5 nm process, featuring 8 cores and 16 threads. Its base clock of 4.20 GHz and boost clock of 5.00 GHz, combined with a 96 MB shared L3 cache, provide exceptional computational throughput. In synthetic benchmarks, the CPU achieves a multi-thread score of 29149 in Cinebench R23 and a single-thread score of 4115, with an average benchmark score of 31580 that places it in the 87th percentile of all CPUs. This processing power is immense, yet the Doom results show no evidence of CPU limitation.

The data indicates that the CPU is never the bottleneck. At 1080p Low, where the GPU has the least work, the frame rate reaches 93.7 FPS. If the CPU were limiting, we would expect to see a plateau or a sharp decrease in scaling at lower resolutions. Instead, the FPS continues to rise as settings drop, proving the CPU is feeding the GPU faster than it can render. The nearest rivals to the 7800X3D, such as the Intel Core i7-12700F with a deltaPct of 0.1 and the AMD Ryzen 7 8700G with a deltaPct of 0.6, show that this CPU is at the top of its class. However, in Doom, this power is wasted. The game’s engine, released in 2016, simply does not require the multi-threaded muscle or the large cache that this CPU offers, making it a poor pairing for this GPU in this title.

Measured FPS Breakdown

At 1920x1080, the resolution where this combo is most viable, the results span from 54.4 FPS on Ultra to 93.7 FPS on Low. Medium settings yield 78.9 FPS, and High provides 65.6 FPS. These numbers indicate that a playable experience is possible, but only by sacrificing visual quality. The jump from Ultra to Low represents a 72% performance increase, which is substantial.

Moving to 2560x1440, the strain on the RX 570 becomes evident. Low settings produce 60.3 FPS, which is the only preset to break the 60 FPS threshold. Medium drops to 51.4 FPS, High to 42.8 FPS, and Ultra falls to 37.2 FPS. The gap between Low and Ultra here is 23.1 FPS, showing that the higher resolution amplifies the cost of each graphical enhancement.

At 3840x2160, the results are largely academic. Low settings manage 29.6 FPS, Medium 27.1 FPS, High 22.3 FPS, and Ultra just 17.8 FPS. None of these are playable for a game that requires fast reaction times. The data shows that the RX 570’s 4 GB of GDDR5 memory and 224.0 GB/s bandwidth are insufficient for the demands of 4K rendering in Doom, as the pixel workload overwhelms the GPU’s 5.095 TFLOPS FP32 compute capability.

GPU Role

The AMD Radeon RX 570 is a Polaris 20 chip built on a 14 nm process, featuring 2048 shading units, 128 TMUs, and 32 ROPs. Its base clock of 1168 MHz and boost clock of 1244 MHz, paired with 4 GB of GDDR5 memory on a 256-bit bus, provide a theoretical bandwidth of 224.0 GB/s. The GPU’s average benchmark score of 30158 places it in the 74th percentile of all GPUs, with a nearest rival being the NVIDIA GeForce RTX 5060 at a deltaPct of 0.2.

In Doom, these specifications are the limiting factor. The GPU’s pixel rate of 39.81 GPixel/s and texture rate of 159.2 GTexel/s are simply too low to handle the demands of higher resolutions. The data shows that the GPU’s performance degrades predictably as resolution increases, with 4K performance dropping to less than half of the 1080p results. The 4 GB VRAM capacity is also a concern, as Doom’s textures at Ultra settings can exceed this amount, potentially causing stuttering or texture thrashing. However, the measured FPS does not show min-FPS data, so we can only infer from the average values. The consistent scaling across settings suggests that the GPU’s compute units are the primary constraint, not memory capacity, as the frame rates scale smoothly with resolution rather than showing abrupt cliffs.

Settings Recommendations

For a playable experience, the 1920x1080 resolution with Medium settings offers the best balance, yielding 78.9 FPS. This provides a stable frame rate that is well above the 60 FPS target while maintaining a reasonable level of visual fidelity. High settings at 1080p drop to 65.6 FPS, which is still playable but leaves less headroom for intense scenes. Low settings at 1080p achieve 93.7 FPS, which is ideal for competitive play, but the visual downgrade may be unacceptable for some users.

At 2560x1440, the data suggests that only Low settings (60.3 FPS) are viable for a smooth experience. Medium settings at 51.4 FPS are borderline, while High and Ultra are not recommended due to sub-60 FPS averages. The 4K resolution should be avoided entirely, as even Low settings only manage 29.6 FPS. The data indicates that users should prioritize resolution scaling over graphical preset quality, as dropping from Ultra to Low at 1080p provides a much larger performance boost (39.3 FPS) than dropping from 1440p to 1080p at Ultra (16.8 FPS). This suggests that the RX 570 is better suited to lower resolutions with higher settings, rather than higher resolutions with compromised visuals.

How This Combo Ranks

The combo rank of 1644 out of 1681 tested combinations is a stark indicator of this pairing’s performance in Doom. This places it in the bottom 2.2% of all tested systems, a position that reflects the GPU’s age and limitations rather than any CPU deficiency. The Ryzen 7 7800X3D is a top-tier processor, ranking in the 87th percentile of all CPUs, while the RX 570 ranks in the 74th percentile of all GPUs. However, the combination of a 2023 processor with a 2017 GPU creates a massive imbalance.

The data suggests that this combo would rank much higher if paired with a more modern GPU, or if the CPU were downgraded to match the GPU’s era. The fact that the combo ranks so low despite having a powerful CPU indicates that Doom is almost entirely GPU-limited for this system. The GPU’s nearest rivals, such as the NVIDIA GeForce RTX 5060 with a deltaPct of 0.2, are far more modern and capable, but they are not present in this specific test. The ranking of 1644 suggests that the vast majority of other tested combos, even those with older or weaker CPUs, are able to achieve higher frame rates in Doom because they are paired with more suitable graphics hardware. This combination serves as a cautionary example of how a high-end CPU cannot compensate for an underpowered GPU in a graphically demanding title.