Downfall

The AMD Ryzen 7 5800X3D paired with the NVIDIA GeForce RTX 5090 delivers a dominant performance profile in Downfall, characterized by exceptional high-refresh-rate capability at 1440p and 1080p, with 4K Ultra presenting the only significant challenge to frame rate stability. This combination ranks in the top 2.5% of all tested configurations, leveraging the CPU's large cache and the GPU's massive memory bandwidth to overcome the game's demanding horror environments.

Resolution Scaling

The data reveals a classic GPU-bound scaling pattern as resolution increases, but with a notable plateau at the lower end that exposes a CPU limit. From 1080p Low to 1440p Low, the average frame rate drops from 361.3 FPS to 324.4 FPS, a modest decline of approximately 10%. This relatively small penalty suggests that at these settings, the Ryzen 7 5800X3D's 8 cores and 16 threads are approaching their ceiling, preventing the RTX 5090 from fully stretching its legs even at 1080p.

The scaling becomes much more aggressive when moving to 4K. At High settings, the transition from 1440p (221.7 FPS) to 2160p (138.4 FPS) represents a 37.6% performance hit, clearly indicating the GPU is now the limiting factor. This is further confirmed by the Low setting comparison: 1440p Low yields 324.4 FPS, but 4K Low drops to 202 FPS—a 37.7% reduction that mirrors the High setting's scaling almost exactly. The RTX 5090's 32 GB of GDDR7 memory and 1.79 TB/s bandwidth are sufficient for 4K, but the sheer pixel count at 3840x2160 demands significantly more shading work from its 21,760 cores.

The Ultra preset tells a different story. At 1080p Ultra, the combo produces 192.6 FPS, which is only 62.8% of the 1080p Low result. This disproportionate drop at a lower resolution compared to the 4K Ultra result (84 FPS) suggests that Ultra settings introduce specific effects that heavily tax the GPU's compute resources, not just memory bandwidth. The gap between 1440p Ultra (135.7 FPS) and 4K Ultra (84 FPS) is 38.1%, consistent with the other settings, confirming that the GPU's rasterization throughput is the primary constraint at higher resolutions.

CPU Role

The Ryzen 7 5800X3D is a Zen 3 architecture part with 8 cores and 16 threads, boosting up to 4.50 GHz from a 3.40 GHz base clock. Its defining feature is the 96 MB of shared L3 cache, which is critical for Downfall's horror environments that often feature complex geometry and AI-driven enemy spawns. The benchmark data shows this CPU excels in multithreaded workloads, with a Cinebench R23 multicore score of 24,063 and a Geekbench multicore score of 11,061.

The fact that frame rates at 1080p Low (361.3 FPS) and 1440p Low (324.4 FPS) are so high—and relatively close together—indicates the CPU is keeping pace with the GPU's output at these settings. The passmark multithread score of 28,309 and the 3DMark 16-thread score of 7,299 suggest strong parallel processing capability. However, the game is not purely multithreaded; the single-thread performance, reflected in a 3DMark single-thread score of 884 and Cinebench R20 single-core score of 1,426, is adequate but not class-leading, placing it at the 83rd percentile among all CPUs.

The 5800X3D's nearest rivals in average benchmark score include the Intel Core i9-11900K (deltaPct 0.1) and AMD Ryzen 5 7600 (deltaPct -0.2), showing it is closely matched in general compute. In Downfall, the CPU's 96 MB L3 cache likely provides a significant advantage for maintaining consistent frame pacing, as horror games often load large texture sets and physics data that benefit from cache hits. The data shows no min FPS values recorded, but the consistently high averages across all settings suggest the CPU is not causing stutter or hitches.

GPU Role

The NVIDIA GeForce RTX 5090 is the dominant force in this pairing. Built on the Blackwell 2.0 architecture with a GB202 chip, it features 21,760 shading units, 680 texture mapping units, and 176 ROPs. Its 32 GB of GDDR7 memory on a 512-bit bus provides 1.79 TB/s of bandwidth, which is crucial for feeding its 104.8 TFLOPS of FP32 compute at high resolutions.

The GPU's benchmark scores are remarkable—a Passmark G3D score of 39,650 and a 3DMark Steel Nomad DX12 score of 14,411 place it at the 94th percentile among all GPUs. Its nearest rival, the NVIDIA GeForce RTX 5090 D, is only 0.1% different in average score, indicating this is essentially the top-tier silicon. In Downfall, the GPU's clock speeds of 2,017 MHz base and 2,407 MHz boost, combined with the massive memory bandwidth, allow it to drive 4K High at 138.4 FPS, which is well above the 60 FPS target for a horror game.

The scaling from 1080p to 4K reveals the GPU's raw power is the primary determinant of performance. At High settings, the 1080p result (306.4 FPS) is 2.2 times higher than the 4K result (138.4 FPS), showing a near-linear scaling with pixel count. The Ultra preset's 4K result of 84 FPS, while lower, is still playable, but the data indicates that the RTX 5090's heat and power envelope (575 W TDP) is being utilized heavily at this setting. The GPU's 176 ROPs are likely the bottleneck for the pixel-heavy Ultra effects, as the texture rate of 1,636.8 GTexel/s is sufficient for the game's visual fidelity.

How This Combo Ranks

This specific combination of AMD Ryzen 7 5800X3D and NVIDIA GeForce RTX 5090 ranks 43rd out of 1,741 tested combos in Downfall, placing it in the top 2.5% of all configurations. This is a remarkable result for a CPU that was released in 2022, proving that the 5800X3D's cache-heavy design remains highly relevant for modern gaming workloads.

The rank is particularly impressive given the CPU's overall percentile of 83rd among all processors. While the 5800X3D is not the fastest CPU in synthetic benchmarks—its average benchmark score of 26,574 is nearly identical to the Intel Core i9-11900K (26,546, deltaPct 0.1)—the combination with the RTX 5090 boosts the entire system to near-flagship status. The GPU's 94th percentile ranking is the primary driver of the combo's high position, but the CPU's ability to feed it without bottleneck at 1440p and 1080p is what allows the combo to reach such a high rank.

The data shows that this combo outperforms most systems with newer CPUs but weaker GPUs. The 43rd rank out of 1,741 means it sits alongside configurations that likely feature top-tier CPUs from the latest generation, yet the 5800X3D's 96 MB L3 cache and the RTX 5090's massive shader count combine to deliver a horror game experience that is smoother than the vast majority of the database. The only weak spot is 4K Ultra, where the 84 FPS result is below the 100 FPS mark that many high-refresh monitors target.

Settings Recommendations

The measured FPS data provides clear guidance for optimal settings. For players targeting 4K, the High preset at 138.4 FPS offers the best balance of visual fidelity and performance, as it more than doubles the Ultra preset's 84 FPS while still delivering a highly detailed horror experience. The Medium preset at 167.9 FPS is also viable, but High provides better image quality for only a 17.6% performance cost.

For 1440p, the Medium preset at 268.3 FPS is the sweet spot for high-refresh-rate monitors, as it provides a 21% improvement over High (221.7 FPS) while maintaining a substantial frame rate buffer. The Ultra preset at 135.7 FPS is still excellent for 1440p and would be recommended for players who prioritize maximum visual quality on a 144 Hz display, as it stays above the refresh rate threshold.

At 1080p, the Ultra preset is the clear recommendation. The 192.6 FPS result is well above the 144 Hz standard, and the gap between Ultra and High (306.4 FPS) is less critical at this resolution where the CPU is becoming a factor. For competitive play, the Low preset at 361.3 FPS offers minimal latency, but the visual downgrade in a horror game is likely not worth the 88.2% frame rate increase over Ultra. The Medium setting at 335.1 FPS is a reasonable compromise, but Ultra's visual benefits for atmosphere and tension make it the best choice for the intended experience.

Measured FPS Breakdown

1080p (1920x1080):

• Low: 361.3 FPS average
• Medium: 335.1 FPS average
• High: 306.4 FPS average
• Ultra: 192.6 FPS average

1440p (2560x1440):

• Low: 324.4 FPS average
• Medium: 268.3 FPS average
• High: 221.7 FPS average
• Ultra: 135.7 FPS average

4K (3840x2160):

• Low: 202 FPS average
• Medium: 167.9 FPS average
• High: 138.4 FPS average
• Ultra: 84 FPS average

The data reveals that the performance gap between Low and Ultra narrows as resolution increases. At 1080p, Low is 87.6% faster than Ultra, but at 4K, Low is only 140.5% faster than Ultra. This indicates that at 4K, the GPU's compute limits dominate, making the settings-based performance differences less pronounced relative to the resolution-based differences.

FAQ

*Q: Can this combo handle 4K Ultra in Downfall?*

A: Yes, but just barely. The measured average FPS at 3840x2160 Ultra is 84 FPS, which is playable but below the 100+ FPS that high-refresh displays can showcase. The 4K High preset at 138.4 FPS is the recommended ceiling for smooth performance.

Q: Is the Ryzen 7 5800X3D a bottleneck for the RTX 5090 in this game?

A: The data suggests the CPU is not a significant bottleneck except at 1080p Low settings, where the 361.3 FPS result is likely near the CPU's maximum. At 1440p and 4K, the GPU is clearly the limiting factor, as shown by the consistent ~38% FPS drop when moving from 1440p to 4K across settings.

Q: What is the best preset for a 144 Hz 1440p monitor?

A: The Ultra preset at 135.7 FPS is the best choice, as it delivers the highest visual quality while staying close to the 144 Hz refresh rate. If you prefer a larger frame rate buffer, the High preset at 221.7 FPS provides a 63% performance headroom.

Q: How does this combo rank among all tested configurations?

A: It ranks 43rd out of 1,741 total combos, placing it in the top 2.5% of all systems tested in Downfall. This is driven primarily by the RTX 5090's 94th percentile GPU score.

Q: Does the 5800X3D's 96 MB L3 cache help in this game?

A: While the FPS data alone cannot isolate the cache's effect, the CPU's strong performance at high frame rates—324.4 FPS at 1440p Low—suggests it is effectively feeding the GPU. The CPU's 83rd percentile ranking and its close match to newer CPUs like the Ryzen 5 7600 (deltaPct -0.2) indicate it holds up well in gaming workloads.

Q: Is there a large performance gap between High and Ultra settings?

A: Yes, particularly at lower resolutions. At 1080p, High yields 306.4 FPS while Ultra drops to 192.6 FPS, a 37.1% reduction. At 4K, the gap is smaller—High at 138.4 FPS versus Ultra at 84 FPS, a 39.3% reduction—but the absolute difference is still substantial, making High the optimal choice for most users.