Doom

The AMD Ryzen 7 5800X3D paired with the Intel Arc B580 produces a fascinating dataset in Doom, one that clearly delineates the shifting bottleneck between CPU and GPU as resolution and graphical fidelity change. This analysis breaks down the measured FPS results, contextualizes them against the component’s raw specifications, and places the combo within the broader benchmark database.

Resolution Scaling

The transition from 1080p to 4K reveals a classic GPU-bound scaling curve, but the shape of that curve is heavily modulated by the game’s settings. At 1080p with Low settings, the combo achieves an average of 186.2 FPS. Moving to 1440p at the same Low preset drops that figure to 119.9 FPS, a reduction of roughly 36%. The subsequent jump to 4K Low yields 61.9 FPS, another 48% decline. This steep drop-off indicates that at lower settings, the Intel Arc B580’s rendering throughput becomes the dominant constraint, with the CPU’s 3D V-Cache having ample headroom.

However, the scaling pattern shifts when the Ultra preset is applied. At 1080p Ultra, the average FPS is 111.6, which falls to 71.9 FPS at 1440p Ultra (a 36% drop), and then to 40.2 FPS at 4K Ultra (a 44% drop). The relative consistency of these percentage declines across the High, Medium, and Ultra presets suggests that the GPU’s fill-rate and shading capabilities are the primary limiter at all resolutions once the visual load is substantial. The data indicates that the 5800X3D’s eight Zen 3 cores are more than sufficient to feed the B580 at 1080p, as the performance delta between Low and Ultra at 1080p is only 74.6 FPS, whereas at 4K the delta between Low and Ultra is just 21.7 FPS, reinforcing that the GPU is saturated.

GPU Role

The Intel Arc B580, built on the Xe2-HPG architecture, is the decisive factor in the higher-resolution results. Its 12 GB of GDDR6 memory on a 192-bit bus provides a memory bandwidth of 456.0 GB/s, which is adequate for the textures and geometry Doom pushes at 4K. The GPU’s boost clock is listed at 2670 MHz, with a pixel rate of 213.6 GPixel/s and a texture rate of 427.2 GTexel/s. These raw throughput numbers correlate directly with the observed frame rates: the 4K High result of 45.9 FPS and the 4K Ultra result of 40.2 FPS suggest that the B580 is hitting a compute wall, not a memory bandwidth wall, as the performance degradation from High to Ultra is a modest 5.7 FPS.

The B580’s FP32 performance is rated at 13.67 TFLOPS, placing it in a specific performance tier. Its benchmark scores show a Passmark G3D score of 15748 and a 3DMark Steel Nomad DX12 score of 3068. The GPU’s percentile ranking versus all GPUs is 66, indicating it sits in the upper-middle tier of the database. Notably, its nearest rival by average benchmark score is the AMD Radeon 760M, with a deltaPct of 0.1, meaning the B580 is essentially tied with that integrated solution in synthetic tests, though the B580’s dedicated 12 GB VRAM and 456.0 GB/s bandwidth give it a distinct advantage in real-world gaming at high resolutions, as evidenced by the playable 1440p High result of 88.7 FPS.

CPU Role

The AMD Ryzen 7 5800X3D is the less constrained half of this pairing. Its 8 cores and 16 threads, based on the Zen 3 architecture, are clocked with a base of 3.40 GHz and a boost of 4.50 GHz. The defining feature is the 96 MB of shared L3 cache, which is the "X3D" differentiator. This large cache pool is particularly effective in Doom, a title that relies on draw calls and level geometry. The CPU’s benchmark results support this: a Cinebench R23 multicore score of 24063 and a single-core score of 3397. The 3DMark 16-thread score of 7299 and the 8-thread score of 5906 show strong scaling with the available cores.

In this game, the CPU’s role is to keep the GPU fed. The data shows that at 1080p Low, the frame rate reaches 186.2 FPS, which is high enough to suggest the CPU is still not fully saturated, but the gap between 1080p Low and 1440p Low (66.3 FPS) is larger than the gap between 1440p Low and 4K Low (58.0 FPS). This implies that while the GPU is the main limiter at 4K, the CPU’s memory latency and core throughput start to become more relevant at the lower resolutions where the GPU can render frames faster. The 5800X3D’s percentile ranking versus all CPUs is 83, placing it in the top quartile. Its nearest rival, the AMD EPYC 8024P, has an average score within 0.1% of the 5800X3D, but for gaming, the 5800X3D’s specialized cache design is the differentiator.

Measured FPS Breakdown

The full dataset for this combo in Doom is as follows:

• 3840x2160 (4K): Ultra averages 40.2 FPS, High averages 45.9 FPS, Medium averages 53.7 FPS, and Low averages 61.9 FPS. The difference between Ultra and Low is 21.7 FPS, showing that the B580’s shading units are the bottleneck, not the VRAM or cache.
• 2560x1440 (1440p): Ultra averages 71.9 FPS, High averages 88.7 FPS, Medium averages 104.2 FPS, and Low averages 119.9 FPS. The scaling here is more linear; each settings tier yields roughly a 15 FPS improvement, indicating a balanced load where the GPU’s compute and the CPU’s draw-call handling are both active.
• 1920x1080 (1080p): Ultra averages 111.6 FPS, High averages 135.5 FPS, Medium averages 157.4 FPS, and Low averages 186.2 FPS. The jump from Low to Medium is 28.8 FPS, while the jump from High to Ultra is only 23.9 FPS, suggesting that at 1080p, the CPU’s 16 threads can easily maintain frame pacing, and the GPU is the limiting factor across all settings.

The 1080p Low figure of 186.2 FPS is particularly noteworthy, as it shows the combination can exceed the refresh rate of most high-refresh monitors in less demanding scenes. Conversely, the 4K Ultra result of 40.2 FPS is below the 60 FPS threshold, indicating that for 4K gaming, settings must be reduced to Medium (53.7 FPS) or Low (61.9 FPS) for a smooth experience.

How This Combo Ranks

Within the database of 1681 tested combos for Doom, this specific pairing of the AMD Ryzen 7 5800X3D and Intel Arc B580 ranks at 1311. This places it in the lower half of all tested configurations, which is expected given that the B580 is a mid-range GPU. The rank of 1311 suggests that while the CPU is a top-tier performer for gaming, the GPU’s absolute rasterization throughput prevents the combo from reaching higher positions in the overall rankings.

The data indicates that this combo is not designed for 4K Ultra settings, but it excels in 1440p and 1080p. The rank is more a reflection of the GPU’s limits than the CPU’s, as the 5800X3D’s synthetic scores place it near the top of the CPU charts. The B580’s nearest rivals in the GPU benchmark database include the NVIDIA GeForce RTX 4060, which has a deltaPct of -0.7, meaning the B580 is only slightly behind it in average benchmark score. However, in Doom, the actual measured FPS at 1440p High (88.7 FPS) suggests that the B580’s drivers and architecture are well-optimized for this specific Vulkan-based title, even if its overall rank of 1311 is modest. The combo’s performance at 1080p Medium (157.4 FPS) shows that for most gamers targeting high refresh rates, this pairing is more than adequate, but for enthusiasts seeking top-tier 4K performance, the data clearly points to the GPU as the limiting factor.