Downfall

The AMD Ryzen 9 9900X paired with the Intel Arc B370 presents a striking study in bottleneck dynamics within the horror title Downfall. The data shows a configuration where a top-tier, 12-core processor is coupled with an entry-level integrated graphics solution, resulting in performance that is almost entirely dictated by the GPU. This analysis breaks down the measured frames per second across resolutions and settings, exploring the implications of this specific hardware pairing.

Resolution Scaling

The measured FPS data reveals a classic and pronounced GPU-bound scaling pattern as resolution increases. At 1080p with Low settings, the combo achieves an average of 96 FPS. Stepping up to 1440p drops that average to 68 FPS, a reduction of 28 frames. Moving to 4K further diminishes the average to 43 FPS, representing a 25-frame drop from the 1440p figure. This steep decline at every step indicates that the rendering workload is saturating the graphics processor, leaving the CPU with significant headroom.

The scaling curve suggests that the limiting component is unambiguously the Intel Arc B370. The Ryzen 9 9900X, with its high multi-threaded and single-threaded scores, is not the constraining factor at any resolution. The pattern is consistent across all settings; for instance, at High settings, the average FPS falls from 64 at 1080p to 46 at 1440p and finally to 29 at 4K. This linear degradation with pixel count is the hallmark of a GPU that is working at its absolute limit.

The data implies that lowering the resolution is the most effective lever for gaining performance in this configuration. The jump from 4K to 1440p yields a performance increase of roughly 50% at Low settings (from 43 to 68 FPS), while the jump from 1440p to 1080p yields a similar proportional gain (from 68 to 96 FPS). This behavior confirms that the system is not CPU-limited, as a CPU bottleneck would manifest as a plateau in FPS at lower resolutions, which is not observed here.

GPU Role

The Intel Arc B370 is a 25 W integrated graphics processor based on the Xe3-LPG architecture. Its performance metrics, including a 3DMark Steel Nomad DX12 score of 1184, place it in the 5th percentile of all GPUs. The benchmark results indicate a serious constraint, as its nearest rivals include the ATI Mobility Radeon HD 5570 and the ATI Radeon HD 5770, both legacy parts. The GPU’s memory configuration is "System Shared," meaning it relies on the system's DDR5 memory rather than dedicated VRAM, with bandwidth described as "System Dependent."

The clock speeds are modest, with a base of 300 MHz and a boost of 2400 MHz. The GPU has 1280 shading units, 40 texture mapping units, and 20 raster output units, along with 10 ray tracing cores. Its compute capabilities are listed at 6.144 TFLOPS for FP32. In the context of Downfall, a 2016 horror game, these specifications are barely sufficient for playable frame rates at lower resolutions and settings.

The GPU's role as the primary bottleneck is clear when examining the 4K Ultra average of 18 FPS. This is a direct result of the integrated graphics being overwhelmed by the pixel fill rate and shading demands. The data suggests that the Arc B370 is not a capable solution for high-resolution or high-detail gaming, and its performance in this test reflects its entry-level positioning. The system shared memory also implies that memory bandwidth contention with the CPU could further impact performance in demanding scenes, though the specific impact is not separable from the aggregate FPS data.

How This Combo Ranks

The combination of the AMD Ryzen 9 9900X and Intel Arc B370 ranks 3429 out of 3716 tested combos for Downfall. This places it in the bottom 8% of all configurations, a poor result that is directly attributable to the GPU. The ranking is a stark illustration of how a powerful CPU cannot compensate for a weak graphics solution in a graphically intensive task.

This low ranking is consistent with the GPU's individual percentile of 5, which is exceptionally low. The CPU, on the other hand, sits in the 92nd percentile of all CPUs. The massive disparity in these two component rankings creates a system where the overall gaming performance is dragged down to the level of the weakest link. The data shows that the combo rank is far more reflective of the GPU's standing than the CPU's, confirming that the Arc B370 is the determining factor in the system's overall capability for this game.

The nearest rivals for the GPU are all older, low-performance parts, and the combo's ranking reflects that lineage. While the CPU is a high-end part, its contribution to the gaming experience is largely neutralized by the GPU's inability to process frames quickly enough. This configuration is an example of a severe imbalance, where the potential of the Ryzen 9 9900X is left untapped in this specific workload.

Measured FPS Breakdown

The complete set of measured FPS data provides a detailed picture of the combo's performance across all tested scenarios. At 1920x1080, the average frame rates are 96 FPS for Low, 78 FPS for Medium (with a minimum of 67 FPS and a maximum of 90 FPS), 64 FPS for High, and 40 FPS for Ultra. The 1080p results show that the game is playable at Low and Medium settings, with High being borderline and Ultra dropping below the 60 FPS threshold.

At 2560x1440, the performance degrades significantly. The averages are 68 FPS for Low, 56 FPS for Medium (with a minimum of 48 FPS and a maximum of 64 FPS), 46 FPS for High, and 29 FPS for Ultra. At this resolution, only the Low preset maintains an average above 60 FPS. The Medium preset is playable but with dips below 50 FPS, while High and Ultra become increasingly difficult to play smoothly.

At 3840x2160, the performance is largely unsatisfactory for smooth gameplay. The averages are 43 FPS for Low, 35 FPS for Medium (with a minimum of 30 FPS and a maximum of 40 FPS), 29 FPS for High, and 18 FPS for Ultra. The 4K results are consistently below the 60 FPS target, and even the Low preset cannot maintain a stable 30 FPS in all cases, as seen by the Medium preset's minimum of 30 FPS. The Ultra preset's 18 FPS average is a clear indicator of the GPU's limits.

CPU Role

The AMD Ryzen 9 9900X is a 12-core, 24-thread processor based on the Zen 5 architecture, codenamed Granite Ridge. It has a base clock of 4.40 GHz and a boost clock of 5.60 GHz, with a 64 MB L3 cache. Its benchmark scores are exceptionally high, including a Cinebench R23 multi-core score of 32172 and a single-core score of 2253. The CPU's percentile rank of 92 indicates it is a top-tier performer.

In Downfall, the CPU's role is to feed the GPU with draw calls and game logic, but the data suggests it is never the limiting factor. The consistent FPS drops across all resolutions indicate that the GPU is saturated before the CPU can become a bottleneck. The high single-thread performance of the Ryzen 9 9900X, as evidenced by its Geekbench single-core score of 3010, is more than sufficient for the game's demands.

The CPU's immense multi-threading capabilities, with a Passmark multithread score of 54643, are largely irrelevant in this scenario. The game cannot utilize the full potential of the 24 threads because the graphics card is the constraining resource. This is a clear case where a high-end CPU does not translate to high gaming performance when paired with a low-end GPU. The data implies that the CPU is idle for significant periods, waiting for the GPU to complete its rendering tasks.

Settings Recommendations

Based on the measured FPS, the optimal settings for a playable experience are highly dependent on the target resolution. For 1920x1080, the Medium preset provides a solid balance with an average of 78 FPS and a minimum of 67 FPS, ensuring a smooth experience without significant dips. The High preset is also viable with a 64 FPS average, but the Medium preset offers more headroom for demanding scenes.

At 2560x1440, the Low preset is the only setting that achieves a consistently high frame rate, with an average of 68 FPS. The Medium preset's 56 FPS average and 48 FPS minimum may be acceptable for some, but it is closer to the edge of playability. For a more stable experience at 1440p, the Low preset is the recommended choice.

At 3840x2160, no preset achieves a consistently playable frame rate. The Low preset's 43 FPS average is the best possible, but it still falls short of the 60 FPS target and may be subject to noticeable stuttering. The Medium preset's 35 FPS average and 30 FPS minimum are at the threshold of playability. The data strongly suggests that 4K gaming is not a viable option for this hardware combination in Downfall.

The best overall experience per the measured rows is at 1080p with Medium settings, offering a good balance of visual quality and performance. For players who prioritize frame rate above all else, the 1080p Low preset with a 96 FPS average is the optimal choice, though it sacrifices visual fidelity. The data indicates that users should target 1080p for a smooth experience and expect significant compromises when moving to higher resolutions.

FAQ

Q: Can this combo run Downfall at 60 FPS?

A: Yes, but only at 1920x1080 with Low or Medium settings, where the average FPS is 96 and 78, respectively. At 1440p, only the Low preset achieves an average near 60 FPS (68 FPS), while all 4K presets fall well below this threshold.

Q: What is the biggest bottleneck in this system?

A: The data clearly indicates the Intel Arc B370 is the limiting component. The GPU's 5th percentile ranking and the consistent FPS drops with resolution increases, despite the powerful CPU, confirm this.

Q: How does the CPU's performance compare to its rivals?

A: The AMD Ryzen 9 9900X has an average benchmark score of 57498, which is 0.1% lower than the AMD EPYC 9015, 0.2% higher than the AMD EPYC 7313, 1.1% lower than the Intel Core i9-14900, and 1.4% lower than the Intel Xeon Platinum 8260M.

Q: Is 4K gaming possible with this hardware?

A: Technically yes, but the experience is poor. The best 4K result is 43 FPS on Low settings, and the Ultra preset only achieves an average of 18 FPS. The data suggests 4K is not a practical gaming resolution for this combo.

Q: What is the performance difference between the Low and Ultra presets at 1080p?

A: The Low preset achieves an average of 96 FPS, while the Ultra preset achieves an average of 40 FPS. This represents a 56 FPS difference, a significant drop in performance for the highest visual quality settings.

Q: What is the combo's rank among all tested systems?

A: The combo ranks 3429 out of 3716 tested combinations for Downfall. This places it in the bottom 8% of all tested configurations, highlighting its overall low gaming performance.