Doom

The AMD Ryzen 7 5800X paired with the AMD Radeon RX 7900 XT delivers a benchmark profile in Doom that is dominated by the graphics card at higher resolutions, while the processor’s strong single-thread performance keeps frame rates exceptionally high at 1080p. The measured data shows a clear transition in the system’s bottleneck as resolution scales, with the GPU becoming the limiting factor at 4K and the CPU showing its strength at lower pixel counts.

Resolution Scaling

The frame rate progression from 1080p to 4K follows a predictable pattern that highlights the GPU’s workload scaling. At 1920x1080 with High settings, the combo produces 247.3 FPS, which drops to 160.7 FPS at 2560x1440 and further to 86.4 FPS at 3840x2160. This represents a 65% reduction in frame rate from 1080p to 4K at High settings, indicating that the RX 7900 XT is being pushed progressively harder as pixel count increases.

The scaling between 1440p and 4K is particularly steep. At Medium settings, the system delivers 192.3 FPS at 2560x1440 but only 104.1 FPS at 3840x2160, a 46% drop. This suggests that the 4K resolution is heavily taxing the GPU’s raw fill rate and memory bandwidth. The RX 7900 XT’s specifications support this interpretation: the card has a pixel rate of 459.6 GPixel/s and a memory bandwidth of 800.0 GB/s, which are substantial but still constrained when rendering over 8 million pixels per frame.

At 1080p, the frame rates are extraordinarily high, with Low settings reaching 335.4 FPS and High settings hitting 247.3 FPS. These numbers indicate that the CPU is capable of feeding the GPU with enough work, as the Ryzen 7 5800X’s 3.80 GHz base clock and 4.70 GHz boost clock provide strong per-core performance. The 3DMark single-thread score of 943 and the 3DMark 2-thread score of 1846 confirm that this processor excels in lightly threaded workloads.

The gap between Low and Ultra settings widens dramatically at 4K. At 3840x2160, Low yields 120.6 FPS while Ultra drops to 69.9 FPS, a 42% penalty. At 1080p, the same settings spread is 335.4 FPS down to 204.3 FPS, a 39% difference. This consistency suggests that the GPU’s shading units, TMUs, and ROPs are being saturated similarly across resolutions, with the 5376 shading units and 192 ROPs scaling predictably.

Data indicates that at 1080p, the system is partially CPU-limited in Ultra settings, as the 204.3 FPS result is still extremely high but shows a smaller relative gap to 1440p’s 131 FPS (a 36% drop). The CPU’s 8 cores and 16 threads, combined with a 32 MB L3 cache, provide ample headroom for Doom’s Vulkan-based rendering engine, which is known for efficient multi-threading.

FAQ

Q: What is the maximum frame rate achievable with this CPU and GPU combo in Doom?

A: The highest measured average frame rate is 335.4 FPS, achieved at 1920x1080 with Low settings. At the same resolution with Ultra settings, the average drops to 204.3 FPS.

Q: How does the RX 7900 XT perform relative to its nearest rivals in synthetic benchmarks?

A: The GPU’s average benchmark score is 38358, which places it 0.3% ahead of the NVIDIA CMP 70HX and 0.6% ahead of the NVIDIA GeForce RTX 4080 Mobile. It is 0.4% behind the NVIDIA GeForce MX570.

Q: Is the Ryzen 7 5800X a limiting factor at 4K resolution?

A: No. At 3840x2160, the frame rates range from 69.9 FPS (Ultra) to 120.6 FPS (Low), which are well below the CPU’s rendering ceiling. The GPU’s computational limits are the primary constraint at this resolution.

Q: What is the difference in performance between 1080p and 1440p at High settings?

A: The system delivers 247.3 FPS at 1920x1080 and 160.7 FPS at 2560x1440, representing a 35% reduction. This indicates that the GPU is handling a significantly larger pixel workload at 1440p.

Q: How does the CPU’s multi-threaded performance compare to its closest rivals?

A: The Ryzen 7 5800X has an average benchmark score of 27606. It is 0.3% ahead of the AMD Ryzen 7 5800 and 0.4% ahead of both the AMD Ryzen 5 8500GE and Intel Core i7-13700H. It trails the Intel Core i5-12600KF by 0.8%.

Q: What GPU settings provide the highest 4K frame rate above 100 FPS?

A: At 3840x2160, Medium settings produce an average of 104.1 FPS. Low settings achieve 120.6 FPS, while High drops to 86.4 FPS and Ultra falls to 69.9 FPS.

CPU Role

The Ryzen 7 5800X is built on the Zen 3 architecture with a 7 nm process node from TSMC. It features 8 cores and 16 threads, with a base clock of 3.80 GHz and a boost clock of 4.70 GHz. These specifications are well-suited for Doom’s engine, which benefits from high single-thread performance. The CPU’s 3DMark single-thread score of 943 and Cinebench R23 single-core score of 3327 demonstrate strong per-core capability.

The processor’s cache hierarchy includes 64 KB of L1 per core, 512 KB of L2 per core, and 32 MB of shared L3 cache. This configuration helps reduce memory latency, which is critical for maintaining high frame rates in fast-paced FPS titles. The 16 threads allow the game engine to distribute tasks across multiple cores, though the measured data shows that the CPU is not the bottleneck at 4K.

At 1080p, the CPU’s role becomes more pronounced. The 335.4 FPS result at Low settings suggests that the processor can handle extreme frame rates without becoming a constraint. The 3DMark 4-thread score of 3543 and 8-thread score of 6035 indicate that the CPU scales well with increased thread utilization, which aligns with Doom’s ability to use multiple cores for draw calls and physics.

The CPU’s memory bandwidth of 51.2 GB/s over a dual-channel DDR4 interface is sufficient for this workload. The processor’s 105 W TDP and 74 mm² die size with 4,150 million transistors reflect a balanced design that prioritizes both performance and efficiency. The 84th percentile ranking among all CPUs confirms that this processor sits well above the median in overall capability.

How This Combo Ranks

The combination of the Ryzen 7 5800X and RX 7900 XT ranks 371st out of 1681 tested combos in Doom, placing it in the top 22% of all configurations. This ranking reflects the system’s ability to deliver high frame rates across all tested resolutions and settings. The GPU’s 82nd percentile ranking among all GPUs and the CPU’s 84th percentile ranking contribute to a balanced overall package.

The GPU’s synthetic benchmark scores provide context for its gaming performance. The 3DMark Steel Nomad DX12 score of 5623 and PassMark G3D score of 29009 indicate strong DirectX 12 performance, which is relevant for Doom’s Vulkan API. The GPU’s FP32 throughput of 51.48 TFLOPS and 20 GB of GDDR6 memory with 800.0 GB/s bandwidth ensure that it can handle the game’s texture streaming and geometry processing demands.

Compared to other combos in the database, this pairing’s rank is driven by the GPU’s high-end positioning. The RX 7900 XT’s nearest rival, the NVIDIA GeForce RTX 5080 Mobile, has a nearly identical average score (38349 vs. 38358, 0% delta), suggesting that these two GPUs would perform similarly in Doom. The CPU’s nearest rival, the AMD Ryzen 7 5800, is only 0.3% behind in average score, meaning that swapping to that processor would have minimal impact on the overall ranking.

The 371st rank out of 1681 combos indicates that there are 370 faster configurations, likely featuring newer or higher-end GPUs such as the RTX 5090 or RX 7900 XTX. However, this combo’s performance is still exceptional for 1440p and 4K gaming, as the measured frame rates exceed 130 FPS at 1440p Ultra and 69.9 FPS at 4K Ultra.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and desired frame rate. For 4K gaming, Medium settings provide the best balance, delivering 104.1 FPS. This is significantly higher than High’s 86.4 FPS while maintaining a visual quality that is still above Low. Ultra at 4K is playable at 69.9 FPS, but the drop below 70 FPS may be noticeable for competitive players.

At 1440p, High settings are ideal, producing 160.7 FPS. This exceeds the refresh rate of most high-end monitors and provides a smooth experience. Medium at 1440p yields 192.3 FPS, which is beneficial for players with 240 Hz displays, while Ultra’s 131 FPS is still highly responsive. Low at 1440p reaches 218.6 FPS, which is only recommended for esports-focused play where maximum frame rate is prioritized over visuals.

For 1080p, the system is so powerful that even Ultra settings produce 204.3 FPS. High settings at 247.3 FPS are sufficient for any monitor, while Low’s 335.4 FPS is overkill for most displays. The data suggests that players with 1080p monitors should use High or Ultra settings without sacrificing competitive performance.

Across all resolutions, the step from Medium to High costs roughly 20-25% of the frame rate, while the step from High to Ultra costs another 20-25%. The step from Low to Medium is smaller, around 10-15%. This pattern indicates that the GPU’s shading units and TMUs are the primary scaling factors, rather than memory bandwidth or ROP throughput. For the best experience, Medium at 4K, High at 1440p, and Ultra at 1080p are the recommended presets based on the measured data.