Downfall

The AMD Ryzen 9 9900X3D paired with the Intel Arc B580 produces a distinct performance profile in Downfall, a 2016 horror title that stresses both the CPU and GPU differently across its settings presets. The data shows a system that scales predictably with resolution, offers a wide FPS envelope from low to ultra settings, and lands in the 75th percentile of all tested combos for this game. This analysis walks through the measured FPS rows, the component-level implications, and the practical settings choices the data supports.

Resolution Scaling

The measured FPS data reveals how the Arc B580 becomes the dominant limiting factor as resolution climbs, while the Ryzen 9 9900X3D’s headroom keeps lower resolutions from bottlenecking. At 1920x1080 with Low settings, the combo averages 185 FPS. Moving to 2560x1440 Low drops that to 132 FPS, a 28.6% reduction. At 3840x2160 Low, the average falls to 82 FPS, another 37.9% drop from the 1440p figure. This pattern — a steep decline from 1080p to 1440p and an even steeper one from 1440p to 4K — indicates that the GPU’s rendering throughput is the primary constraint at higher pixel counts.

The High settings row tells a similar story with a different starting point. At 1080p High, the combo delivers 124 FPS. At 1440p High, it drops to 88 FPS, a 29.0% decline. At 4K High, the average falls to 55 FPS, a 37.5% drop from 1440p. The consistency of these percentage declines across Low and High presets suggests that resolution scaling is uniform regardless of the graphics workload, which is typical of a GPU-bound scenario at higher resolutions. The 1080p to 1440p step costs roughly 29% of the frame rate, while the 1440p to 4K step costs roughly 38% — the larger second hit reflects the quadratic increase in pixel count from 3.7 million to 8.3 million pixels.

Notably, the Ultra preset shows the most severe scaling hit. At 1080p Ultra, the average is 77 FPS. At 1440p Ultra, it drops to 55 FPS, a 28.6% decline. At 4K Ultra, the average collapses to 34 FPS, a 38.2% drop from 1440p. The fact that the Ultra preset at 4K lands below 40 FPS while Low at 4K achieves 82 FPS suggests that the GPU’s compute and memory resources are saturated by the combination of high resolution and maximum visual effects. The data indicates that the CPU is not the limiting factor here — if it were, the 1080p to 4K scaling would flatten out rather than maintaining these steep drops.

GPU Role

The Intel Arc B580’s specs and benchmark results explain much of the measured FPS behavior in Downfall. The GPU features 12 GB of GDDR6 memory on a 192-bit bus, delivering 456.0 GB/s of bandwidth. Its boost clock is fixed at 2670 MHz, with a base clock also at 2670 MHz, indicating a static clock profile rather than a dynamic boost curve. The GPU’s FP32 throughput is 13.67 TFLOPS, and it has 2560 shading units, 160 TMUs, and 80 ROPs. These specs place it in the mid-range tier, and the benchmark data reflects that positioning.

In the GPU’s nearestRivals list, the Arc B580’s average benchmark score of 23021 sits within 1% of several cards. The AMD Radeon RX 580 2048SP scores 23061 (a -0.2% delta), the NVIDIA GeForce RTX 2080 scores 22895 (+0.6%), the RTX 3080 scores 23172 (-0.7%), and the NVIDIA P106-100 scores 23249 (-1%). This clustering means the Arc B580 is effectively trading blows with a range of cards from different generations and tiers. The RTX 3080, typically a much faster card in modern titles, is within 0.7% of the Arc B580’s average score — but that average includes synthetic tests like 3DMark Steel Nomad (3068) and Geekbench Vulkan (109672), which may not reflect Downfall’s specific engine demands.

The GPU’s 68th percentile ranking versus all GPUs suggests it sits above the median but below the high-end. In Downfall, this translates to the measured FPS figures: at 1080p Medium, the combo hits 151 FPS average with a minimum of 128 and maximum of 174. At 1440p Medium, those numbers fall to 108 average, 92 minimum, and 124 maximum. At 4K Medium, the average is 67 FPS with a 57 minimum and 77 maximum. The Medium preset’s min/max ranges — roughly 15-20 FPS wide at each resolution — indicate stable frame pacing with occasional dips, likely from sudden scene complexity in this horror title.

CPU Role

The AMD Ryzen 9 9900X3D provides substantial compute headroom that keeps the GPU from being starved at lower resolutions. This CPU has 12 cores and 24 threads, with a base clock of 4.40 GHz and a boost clock of 5.50 GHz. It features 128 MB of L3 cache, which is a key asset for gaming workloads. The CPU’s 3DMark results show strong scaling: 2512 for 2 threads, 4885 for 4 threads, 9002 for 8 threads, and 13795 for max threads. This nearly linear scaling from 2 to 8 threads suggests that Downfall can leverage multiple cores effectively, though the game launched in 2016 and may not use all 24 threads.

The CPU’s average benchmark score is 54762, placing it in the 91st percentile versus all CPUs. Its nearest rivals are all within 2.1%: the Intel Core Ultra 5 245KF scores 55093 (-0.6%), the Core Ultra 5 245K scores 54053 (+1.3%), the Intel Xeon 6505P scores 53701 (+2%), and the Core i7-14700F scores 53620 (+2.1%). This tight grouping means the 9900X3D is not dramatically faster than these chips in synthetic workloads, but its 128 MB L3 cache and 5.50 GHz boost clock give it an edge in latency-sensitive games.

In Downfall, the CPU’s role is evident in the 1080p Low result: 185 FPS average. That figure is high enough that the GPU is likely the bottleneck even at this low resolution, but the CPU’s single-thread performance (1269 in 3DMark single-thread, 6739 in Cinebench R23 single-core) ensures that frame generation is not held back. The CPU’s memory bandwidth of 89.6 GB/s via dual-channel DDR5 also feeds the GPU’s requests efficiently. The fact that the 9900X3D has a 91st percentile ranking while the Arc B580 sits at 68th percentile confirms that the CPU is not the weak link in this combo — the GPU is.

FAQ

*Q: What is the highest average FPS this combo achieves in Downfall?*

A: The highest measured average is 185 FPS at 1920x1080 with Low settings. The next highest is 151 FPS at 1080p Medium, followed by 132 FPS at 1440p Low.

Q: How does this combo perform at 4K Ultra compared to 4K Low?

A: At 3840x2160 Ultra, the average FPS is 34. At 3840x2160 Low, the average is 82 FPS. This represents a 141% increase in frame rate when dropping from Ultra to Low at 4K.

Q: Is the CPU or GPU more likely to be the performance limiter in this game?

A: The data points to the GPU as the limiter at higher resolutions. At 1080p Low, the combo hits 185 FPS, but at 4K Low it drops to 82 FPS — a 55.7% reduction that aligns with the GPU’s rendering load increasing. The CPU’s 91st percentile ranking versus the GPU’s 68th percentile supports this interpretation.

Q: What are the minimum and maximum FPS recorded at 1440p Medium?

A: At 2560x1440 with Medium settings, the combo records a minimum FPS of 92 and a maximum of 124, with an average of 108 FPS.

Q: How does the Arc B580’s average benchmark score compare to the RTX 3080?

A: The Arc B580’s average benchmark score is 23021, while the RTX 3080’s is 23172, a delta of -0.7%. This puts the two cards within 1% of each other in synthetic benchmarks, despite the RTX 3080 typically being positioned as a higher-tier card.

Q: Does the combo maintain playable frame rates at 4K across all settings?

A: At 4K, the average FPS ranges from 34 (Ultra) to 82 (Low). Medium averages 67 FPS, and High averages 55 FPS. All presets clear the 30 FPS threshold, but only Low and Medium stay above 60 FPS.

How This Combo Ranks

The combo of the AMD Ryzen 9 9900X3D and Intel Arc B580 ranks 2196 out of 2928 tested combinations in Downfall. This position places it in the 75th percentile — meaning it outperforms roughly three-quarters of all tested combos but trails the top 25%. Given the CPU’s high-end positioning (91st percentile) and the GPU’s mid-range positioning (68th percentile), this rank makes sense: the combo is dragged down by the GPU’s relative weakness, but the CPU’s strength prevents it from falling further.

The rank of 2196 out of 2928 means there are 732 combos that score higher in this game. Those higher-ranked combos likely pair stronger GPUs (high-end NVIDIA or AMD cards) with CPUs that are comparable or slightly weaker than the 9900X3D. Conversely, the 732 combos ranked below this one likely feature either weaker CPUs, weaker GPUs, or both. The delta between the CPU’s percentile (91) and the GPU’s percentile (68) suggests that if the Arc B580 were swapped for a stronger GPU, this combo could climb significantly higher in the rankings. If the CPU were swapped for a weaker one, the rank would drop only marginally, since the GPU is already the bottleneck at most resolutions.

The data shows that this combo is balanced toward CPU-heavy workloads. In Downfall, where the GPU is the limiting factor at 1440p and above, the 9900X3D’s extra headroom goes unused. The combo’s rank reflects this imbalance — it is not a top-tier gaming combo, but it is solidly above average.

Settings Recommendations

The measured FPS data supports a clear recommendation for the best experience in Downfall: Medium settings at 1920x1080 or 2560x1440. At 1080p Medium, the combo delivers 151 FPS average with a minimum of 128 and maximum of 174. This is well above the 60 FPS threshold for smooth gameplay, and the min/max range is tight enough to avoid noticeable stutter. At 1440p Medium, the average drops to 108 FPS, with a minimum of 92 and maximum of 124. This is still excellent for a horror game, where sustained frame rates matter for atmosphere.

The High preset is also viable. At 1080p High, the average is 124 FPS, which is smooth, and at 1440p High, the average is 88 FPS, which is playable but with less headroom. The Ultra preset is the least recommended: at 1080p Ultra, the average falls to 77 FPS, and at 4K Ultra, it drops to 34 FPS, which is below the 60 FPS target and risks feeling sluggish in a genre that benefits from responsiveness.

For 4K gaming, the data suggests using Low or Medium settings. At 4K Low, the average is 82 FPS, which is playable, and at 4K Medium, it is 67 FPS with a minimum of 57. The High preset at 4K (55 FPS average) is borderline, and Ultra (34 FPS) should be avoided. The sweet spot for this combo is 1440p Medium or 1080p Medium, where the frame rates are high enough to ensure smooth gameplay and the settings are high enough to appreciate the game’s visual design.

Measured FPS Breakdown

The full set of measured FPS rows is as follows:

1920x1080 (1080p):

• Low: 185 FPS average
• Medium: 151 FPS average, 128 minimum, 174 maximum
• High: 124 FPS average
• Ultra: 77 FPS average

2560x1440 (1440p):

• Low: 132 FPS average
• Medium: 108 FPS average, 92 minimum, 124 maximum
• High: 88 FPS average
• Ultra: 55 FPS average

3840x2160 (4K):

• Low: 82 FPS average
• Medium: 67 FPS average, 57 minimum, 77 maximum
• High: 55 FPS average
• Ultra: 34 FPS average

The Medium preset is the only one with recorded minimum and maximum FPS values, and those numbers show consistent behavior across resolutions. At 1080p Medium, the range is 128-174 FPS, a 46 FPS spread. At 1440p Medium, the range narrows to 92-124 FPS, a 32 FPS spread. At 4K Medium, the range tightens further to 57-77 FPS, a 20 FPS spread. This narrowing range at higher resolutions indicates that the GPU’s workload becomes more uniform as it becomes the bottleneck, reducing the variability caused by CPU-side frame generation spikes.

The delta between Low and Ultra settings at each resolution is worth noting. At 1080p, Low averages 185 FPS and Ultra averages 77 FPS, a 108 FPS difference (a 140% increase for Low). At 1440p, Low averages 132 FPS and Ultra averages 55 FPS, a 77 FPS difference (a 140% increase). At 4K, Low averages 82 FPS and Ultra averages 34 FPS, a 48 FPS difference (a 141% increase). The consistency of this ~140% delta across resolutions confirms that the settings presets scale the GPU load proportionally, regardless of pixel count. This data-driven observation reinforces that the Arc B580’s performance in Downfall is predictable and well-characterized by the measured rows.