Doom

The AMD Ryzen 7 5800X and AMD Radeon RX 7800 XT combination delivers a remarkably strong performance profile in Doom, posting triple-digit frame rates at 1440p and playable, high-refresh results at 4K. The pairing of the 8-core Zen 3 processor with the RDNA 3.0 graphics card proves exceptionally well-balanced, with the data showing the GPU becoming the primary scaling bottleneck only at the highest resolutions. This analysis examines how the measured frame rates shift across settings and resolutions, what the CPU and GPU specifications contribute to the result, and where the best experience lies within the measured data.

Resolution Scaling

The measured FPS data reveals a clear and consistent scaling pattern as resolution increases, which indicates a predictable shift in system bottleneck. At 1080p, the RX 7800 XT is able to stretch its legs with average frame rates ranging from 171 FPS on Ultra to 284 FPS on Low, showing that the CPU is more than capable of feeding the GPU at lower pixel counts. The jump from 1440p to 4K is where the most dramatic performance drop occurs, highlighting the GPU's workload at higher pixel densities.

Moving from 1440p to 4K at High settings, the average frame rate falls from 135 FPS to 73 FPS, a reduction of 62 FPS that clearly demonstrates the GPU's rendering load doubling with pixel count. Similarly, at Medium settings, the drop is from 160 FPS at 1440p to 87 FPS at 4K, a 73 FPS decrease that reinforces the GPU-bound nature of 4K gaming. The Low preset tells the same story, with average frame rates falling from 184 FPS at 1440p to 99 FPS at 4K, a 85 FPS reduction that is proportionally significant even when the GPU is less stressed.

The scaling from 1080p to 1440p is less severe but still notable. At Ultra settings, the average drops from 171 FPS to 110 FPS, a 61 FPS decrease that suggests the GPU is beginning to feel the pressure of additional pixels. At High settings, the drop is from 209 FPS to 135 FPS, a 74 FPS reduction that indicates a smooth transition into GPU-bound territory. The data suggests that at 1080p, the system has significant headroom, and the limiting component is likely the CPU's ability to issue draw calls, whereas at 1440p and especially 4K, the RX 7800 XT becomes the definitive constraint.

It is notably the 4K Ultra preset is the only measured configuration that dips below 60 FPS, posting an average of 60 FPS. This indicates that while the card is capable of 4K gaming, the Ultra preset at that resolution pushes the GPU to its limits, and the 60 FPS average is right on the edge of what is considered smooth for competitive play. The scaling data shows that the RX 7800 XT is best suited for 1440p high-refresh gaming, where it maintains averages well above 110 FPS across all presets.

Settings Recommendations

Based on the measured rows, the optimal experience hinges on balancing visual fidelity with the frame rate demands of the user's display. For users with a high-refresh 1080p monitor, the Ultra preset at 171 FPS average is the clear choice, as it delivers the highest visual quality while still maintaining a frame rate that exceeds most monitors' refresh rates. The data shows that even at 1080p Ultra, the system is not fully GPU-bound, suggesting that users could potentially see even higher frame rates with a more powerful CPU, but the current pairing is more than adequate.

At 1440p, the High preset at 135 FPS average provides the best balance between image quality and smoothness. The jump to Ultra at 110 FPS average is a 25 FPS reduction for what is likely a marginal visual improvement, while dropping to Medium at 160 FPS average sacrifices some visual fidelity for a frame rate that is only 25 FPS higher than High. The data suggests that High is the sweet spot for 1440p, offering a frame rate that is well above the 100 FPS threshold for competitive play while retaining the visual quality that makes Doom's fast-paced action immersive.

For 4K gaming, the Medium preset at 87 FPS average is the recommended choice, as it provides a playable experience that is significantly smoother than the 60 FPS average of the Ultra preset. The Low preset at 99 FPS average is tempting due to its higher frame rate, but the visual quality loss is substantial. The data shows that the 4K Medium preset is the only measured configuration that provides both a playable frame rate and acceptable visual detail, making it the best option for users who prioritize smoothness over maximum graphical fidelity. The 4K High preset at 73 FPS average is also playable, but it is close to the 60 FPS threshold and may not be ideal for fast-paced action.

CPU Role

The AMD Ryzen 7 5800X plays a critical role in ensuring the high frame rates seen at lower resolutions. With 8 cores and 16 threads running at a base clock of 3.80 GHz and a boost clock of 4.70 GHz, the CPU provides ample processing power to keep the GPU fed with draw calls and game logic. The benchmark data for the CPU shows a single-thread score of 943 in 3dmark and a multi-thread score of 7586 in 3dmark_16_threads, indicating strong per-core performance that is essential for a game like Doom, which is known for its efficient multi-threading.

The CPU's architecture, Zen 3 on the Vermeer codename, with a 32 MB L3 cache, provides low latency access to data, which is critical for maintaining consistent frame times. The benchmark results show a Cinebench R23 single-core score of 1574.5, which is competitive for its generation, and a multi-core score of 15476 that demonstrates the 8-core processor's ability to handle the game's thread scheduler. The CPU's performance percentile of 81 indicates that it is in the top quintile of all CPUs, and its average benchmark score of 29123 places it in a dead heat with rivals like the Intel Core Ultra 5 135H, which posts a delta of 0.1 percent.

In the context of Doom, the CPU's role is most evident at 1080p, where the average frame rates of 284 FPS on Low and 247 FPS on Medium are likely limited by the CPU's ability to process the game's simulation thread. The fact that the frame rate scales significantly with resolution, with 1080p scores being much higher than 1440p scores, indicates that the CPU is not the primary bottleneck at higher resolutions. The data suggests that the Ryzen 7 5800X is more than sufficient for this game, and its 8-core/16-thread configuration ensures that it will not hold back the GPU in most scenarios.

FAQ

Q: Why is the 4K Ultra preset the only one that drops to 60 FPS?

A: The measured data shows that the 4K Ultra preset averages 60 FPS, while the 4K High preset averages 73 FPS. This 13 FPS difference indicates that the Ultra preset's additional visual effects place a significant load on the GPU, pushing it to its limits at that resolution.

Q: Is the system better suited for 1080p or 1440p gaming?

A: The data indicates that the system excels at both, but the 1440p High preset at 135 FPS average offers the best balance of visual quality and frame rate. The 1080p Ultra preset is faster at 171 FPS average, but the higher resolution provides a sharper image.

Q: How does the CPU compare to its nearest rivals in benchmark scores?

A: The Ryzen 7 5800X has an average benchmark score of 29123, which is 0.1 percent higher than the Intel Core Ultra 5 135H's average score of 29093. It is also 0.6 percent higher than the AMD Ryzen 5 5600XT, which has an average score of 28940.

Q: What is the best preset for 4K gaming based on the data?

A: The 4K Medium preset at 87 FPS average is the best option, as it provides a frame rate that is 27 FPS higher than the Ultra preset's 60 FPS average, while retaining more visual detail than the Low preset's 99 FPS average.

Q: Does the CPU bottleneck the GPU at any resolution?

A: The data suggests that the CPU is not the primary bottleneck at 1440p or 4K, as frame rates scale strongly with resolution. At 1080p, the CPU may be the limiting factor, as evidenced by the high frame rates on the Low preset (284 FPS) that are close to the CPU's maximum potential.

Q: How does the GPU's benchmark score compare to its nearest rivals?

A: The RX 7800 XT has an average benchmark score of 11627, which is 0.5 percent lower than the NVIDIA GeForce GTX 1660's average score of 11680. It is also 1.3 percent higher than the AMD Radeon Pro 5500M, which has an average score of 11528.

GPU Role

The AMD Radeon RX 7800 XT is the dominant component in this pairing, especially at higher resolutions. With 16 GB of GDDR6 memory on a 256-bit bus, the card has a memory bandwidth of 624.1 GB/s, which is more than sufficient for the textures and geometry in Doom. The GPU's core clocks, with a boost clock of 2430 MHz and a game clock of 2124 MHz, provide the raw compute power needed to drive the frame rates seen in the measured data.

The GPU's architecture, RDNA 3.0 on the Navi 32 chip, is built on a 5 nm process node and features 3840 shading units, 240 TMUs, and 96 ROPs. This configuration results in a pixel rate of 233.3 GPixel/s and a texture rate of 583.2 GTexel/s, which are key metrics for a fast-paced shooter that relies on high fill rates. The FP32 performance of 37.32 TFLOPS is also notable, indicating that the card has ample compute throughput for the game's shader effects.

In the measured FPS data, the GPU's role is most apparent in the scaling from 1440p to 4K. The RX 7800 XT's performance at 4K, with averages ranging from 60 FPS on Ultra to 99 FPS on Low, shows that the card is capable of 4K gaming but is not over-provisioned for it. The GPU's benchmark percentile of 51 indicates that it sits in the middle of the pack, and its average benchmark score of 11627 is within 1.8 percent of its nearest rivals, including the AMD Radeon RX 6500 XT. The VRAM capacity of 16 GB is a significant advantage, ensuring that the card will not run out of memory at any of the measured settings or resolutions.

Measured FPS Breakdown

At 1080p, the system shows its highest frame rates across all presets. The Low preset averages 284 FPS, which is the highest measured value in the entire dataset. The Medium preset averages 247 FPS with a minimum of 210 FPS and a maximum of 284 FPS, showing a tight frame time distribution. The High preset averages 209 FPS, and the Ultra preset averages 171 FPS. This 113 FPS difference between Low and Ultra at 1080p demonstrates the significant impact of the Ultra preset's additional effects.

At 2560x1440, the frame rates drop but remain highly playable. The Low preset averages 184 FPS, the Medium preset averages 160 FPS with a minimum of 136 FPS and a maximum of 184 FPS, the High preset averages 135 FPS, and the Ultra preset averages 110 FPS. The minimum FPS of 136 at Medium settings is still well above the 60 FPS threshold, indicating that the system maintains smooth performance even during intense action sequences.

At 3840x2160, the system's performance is the most constrained. The Low preset averages 99 FPS, the Medium preset averages 87 FPS with a minimum of 74 FPS and a maximum of 100 FPS, the High preset averages 73 FPS, and the Ultra preset averages 60 FPS. The 4K Ultra preset is the only measured configuration that does not exceed the 60 FPS average threshold, highlighting the GPU's limitations at maximum settings and resolution. The data shows a consistent pattern of frame rate drops as resolution increases, with the 4K Ultra preset being the only configuration that falls below the 73 FPS average seen at 4K High.