Downfall

The AMD Ryzen 7 5800X3D paired with the Intel Arc B390 represents an extreme mismatch in a horror gaming context. The data places this combo at rank 2589 out of 2928 tested combinations, placing it in the bottom 12% of all configurations for Downfall. The processor is a high-end desktop part, while the graphics solution is an integrated-class mobile chip with a 3DMark Steel Nomad score of 1482, which lands it in the 9th percentile of all GPUs. This analysis walks through the measured FPS data to show exactly how the CPU’s capability is neutralized by the GPU’s output limits.

FAQ

Q: What is the average FPS at 1080p with Low settings for this combo?

A: The measured average FPS at 1920x1080 with Low settings is 106. This is the highest performance point recorded for this configuration.

Q: How does the Intel Arc B390 compare to its nearest rival in raw GPU benchmarks?

A: The Arc B390 scores 1482 in 3DMark Steel Nomad DX12. Its closest rival, the NVIDIA GeForce GT 520MX, scores 1463, which places the Intel part 1.3% ahead. The gap widens to 2.7% over the NVIDIA GeForce GT 710, which scores 1443.

*Q: What is the combo's overall ranking in Downfall?*

A: The combo ranks 2589 out of 2928 tested combinations. This places it in the lower portion of the database, indicating below-average performance for this specific game.

Q: Does the Ryzen 7 5800X3D have integrated graphics?

A: No, the FACT PACK lists the integratedGraphics field as null, meaning the CPU does not provide a fallback display output. All rendering is handled by the Intel Arc B390.

Q: What is the FPS difference between 1080p Low and 4K Ultra?

A: The difference is substantial. The 1080p Low preset achieves 106 FPS, while the 3840x2160 Ultra preset drops to 20 FPS. This represents a reduction of 86 FPS, or roughly 81% lower performance.

Q: What is the launch MSRP of the CPU?

A: The AMD Ryzen 7 5800X3D has a launch MSRP of $449. This is the only pricing information available in the data.

CPU Role

The AMD Ryzen 7 5800X3D is a desktop processor built on the Zen 3 (Vermeer) architecture using a 7 nm process. It features 8 cores and 16 threads, with a base clock of 3.40 GHz and a boost clock of 4.50 GHz. The CPU’s standout feature is its large 96 MB shared L3 cache, which is a defining characteristic of the X3D line. This cache configuration is designed to reduce memory latency, which can be particularly beneficial in games that rely on repeated data access.

In synthetic benchmarks, the CPU demonstrates strong multi-threaded capability. It scores 14,317 in Cinebench R23 multi-core and 11,765 in Geekbench multi-core. Single-thread performance is also solid, with a Geekbench single-core score of 2017 and a Cinebench R23 single-core score of 1452. The CPU’s overall average benchmark score is 27,896, placing it in the 80th percentile of all CPUs. Its nearest rivals include the AMD Ryzen 7 6800U (score 27,887, 0% delta) and the Intel Core i9-10900K (score 27,872, 0.1% delta), showing that it sits right at the edge of a performance cluster.

For Downfall, a horror game released in early 2016, the CPU’s role is mostly about maintaining a stable frame delivery. The 3DMark 16-thread score of 7299 suggests that the processor can handle heavily threaded workloads, but the game’s engine likely does not scale perfectly to 16 threads. The 3DMark 8-thread score of 5906 is more relevant for gaming scenarios, as most titles use fewer cores. Given the CPU’s high percentile ranking, it is unlikely that the processor is the primary bottleneck in this configuration. The data shows the CPU has ample headroom, but the measured FPS figures are constrained by other factors, primarily the GPU.

GPU Role

The Intel Arc B390 is a graphics processor based on the Xe3-LPG architecture, fabricated on a 3 nm process. It is classified as an IGP (Integrated Graphics Processor) with a slot width of "IGP" and no power connectors. The GPU has a base clock of 300 MHz and a boost clock of 2500 MHz. Its memory configuration is listed as "System Shared," meaning it relies on the system’s main memory rather than dedicated VRAM. This is a significant limitation for gaming, as shared memory bandwidth is "System Dependent" and typically much slower than dedicated GDDR6 or GDDR6X.

The GPU’s compute resources include 1536 shading units, 48 texture mapping units, and 24 ROPs. It also has 12 ray tracing cores, though the game Downfall from 2016 likely does not utilize ray tracing. The pixel rate is 60.00 GPixel/s and the texture rate is 120.0 GTexel/s, with FP32 performance rated at 7.680 TFLOPS. In the single benchmark available, the GPU scores 1482 in 3DMark Steel Nomad DX12. This score places it in the 9th percentile of all GPUs, which is remarkably low.

The nearest rivals for the Arc B390 are all older NVIDIA parts: the GeForce GT 520MX (score 1463, 1.3% ahead), GeForce 800M (score 1460, 1.5% ahead), GeForce GT 625 OEM (score 1446, 2.5% ahead), and GeForce GT 710 (score 1443, 2.7% ahead). The fact that the Arc B390 is only slightly better than these legacy entries indicates that its rendering performance is extremely limited. For a game like Downfall, the GPU will be the limiting component in almost every scenario, as its raw throughput is insufficient for high-resolution or high-detail rendering.

How This Combo Ranks

The combo ranks 2589 out of 2928 tested combinations in Downfall. This places it in the bottom 11.6% of all tested systems. The ranking reflects the severe imbalance between the CPU and GPU. The Ryzen 7 5800X3D is a high-end part from 2022, while the Arc B390 is an integrated solution with performance comparable to entry-level discrete GPUs from over a decade ago.

The data shows that the CPU’s high percentile (80th) does not translate to a high combo rank. This is because the game’s frame rate is bounded by the GPU’s output. The CPU can prepare frames quickly, but the GPU cannot render them fast enough. The result is a system that might excel in CPU-bound tasks but falls short in gaming, particularly at higher resolutions where the GPU load increases.

When compared to the total pool of 2928 combos, this pairing is clearly at the lower end. The rank of 2589 indicates that a significant majority of other CPU-GPU pairings achieve better performance in Downfall. The combination is more aligned with low-end office or media center systems than with gaming rigs, despite the powerful CPU.

Measured FPS Breakdown

The measured FPS data provides a clear picture of performance across three resolutions and four settings presets. At 1920x1080, the lowest settings yield the best results. The Low preset averages 106 FPS, while Medium averages 87 FPS (with min/max of 74/100). High settings drop the average to 71 FPS, and Ultra falls to 44 FPS. This shows that even at 1080p, the GPU struggles with higher detail levels, but it can maintain playable frame rates at lower settings.

At 2560x1440, the performance drops noticeably. The Low preset averages 76 FPS, Medium averages 62 FPS (min/max of 53/71), and High averages 51 FPS. The Ultra preset falls to 32 FPS. This resolution is more demanding, and the GPU’s limitations become more apparent. The gap between Low and Ultra is 44 FPS, which is a 58% reduction in performance.

At 3840x2160 (4K), the results are largely unplayable for smooth gaming. The Low preset averages 47 FPS, Medium averages 39 FPS (min/max of 33/44), and High averages 32 FPS. The Ultra preset plummets to 20 FPS. These numbers indicate that 4K gaming is only feasible at Low settings, and even then, the frame rate is marginal for a horror game that may require quick reactions.

The data shows a consistent pattern: as resolution increases, the average FPS decreases across all settings. The GPU’s fill rate and memory bandwidth are insufficient for high pixel counts, leading to a steep performance cliff at 4K.

Settings Recommendations

Based on the measured FPS data, the optimal experience for this combo in Downfall is achieved at 1920x1080 with the Low preset, which delivers an average of 106 FPS. This is the only configuration that approaches high refresh rate territory, providing a smooth and responsive experience. The Medium preset at 1080p is also viable, with an average of 87 FPS and a minimum of 74 FPS, which should be sufficient for most players.

At 2560x1440, the Low preset is the recommended choice, averaging 76 FPS. The Medium preset at 62 FPS is acceptable, but the minimum of 53 FPS might cause noticeable stutters in intense scenes. High and Ultra settings at this resolution are not advisable, as they drop below 51 FPS and 32 FPS respectively, which can hinder gameplay in a horror title where timing is critical.

For 3840x2160, the data suggests that only the Low preset is worth considering, with an average of 47 FPS. This is borderline playable, but the frame rate will likely fluctuate. The Medium preset at 39 FPS is too low for a smooth experience, and High and Ultra are unplayable at 32 FPS and 20 FPS. Therefore, the best settings recommendation is to stick to 1080p Low or Medium for a consistent experience, or 1440p Low if higher resolution is preferred.

Resolution Scaling

The FPS scaling from 1080p to 4K illustrates the GPU’s dominance as the limiting factor. At High settings, the average FPS drops from 71 at 1920x1080 to 51 at 2560x1440, and then to 32 at 3840x2160. This represents a 55% reduction from 1080p to 4K. At Low settings, the drop is from 106 to 76 to 47, which is a 56% reduction. The consistency of this percentage across settings indicates that the GPU is the bottleneck; the CPU is not causing the frame rate to scale differently.

The percentage drop from 1080p to 1440p is roughly 28-29% across all settings, while the drop from 1440p to 4K is roughly 37-38%. This non-linear scaling is typical for a GPU that is running out of pixel throughput. The number of pixels at 4K is 4 times that of 1080p, but the frame rate does not drop by 75%, which suggests that the GPU’s memory bandwidth is being saturated. The "System Shared" memory and "System Dependent" bandwidth are likely the culprits, as the GPU must compete with the CPU for memory access.

The data confirms that this combo is heavily GPU-limited. The CPU’s performance is only relevant when the GPU is not saturated, which happens at 1080p Low. At higher resolutions, the GPU’s limitations completely mask the CPU’s capability. The 20 FPS result at 4K Ultra is the clearest evidence of this, showing that the integrated graphics solution is not suitable for demanding gaming scenarios. The system would benefit from a dedicated GPU, but within the constraints of this pairing, the measured data shows a clear performance ceiling.