Downfall

The AMD Ryzen 9 5900X paired with the AMD Radeon RX 6800 XT delivers a robust experience in Downfall, a 2016 horror title that scales predictably across resolutions. The data shows a system that is heavily GPU-bound at higher settings, with the CPU proving more than capable of feeding the graphics card at lower resolutions. This combination sits in the upper third of all tested configurations, offering high frame rates that are particularly strong for high-refresh-rate monitors.

Resolution Scaling

The measured FPS data reveals a classic scaling pattern from 1080p to 4K. At 1080p with Low settings, the combo achieves 288 FPS, which is an exceptionally high figure indicating that the CPU and GPU are both operating near their limits for this workload. Moving to 1440p, the same Low preset sees a drop to 207.5 FPS, a decrease of roughly 28%. At 4K, Low settings still deliver 130.7 FPS, which is a substantial 45% reduction from the 1440p result. This trajectory suggests that while the GPU is beginning to work harder, the frame rates remain so high that the limiting factor is likely the frame generation pipeline rather than raw shader performance.

The scaling from 1080p to 4K is more dramatic when using Ultra settings. At 1080p Ultra, the system produces 121.8 FPS. This falls to 87.9 FPS at 1440p, a 28% drop, and then plummets to 55.1 FPS at 4K, which is a 37% reduction from the 1440p figure. This steeper decline at Ultra settings indicates a shift toward GPU-bound performance. The transition from High to Ultra at 4K is particularly telling: High produces 89.1 FPS, while Ultra drops to 55.1 FPS, a massive 38% performance hit for the highest quality preset. The data suggests that at 4K Ultra, the RX 6800 XT is the definitive bottleneck, with the Ryzen 9 5900X sitting idle waiting for frame data.

How This Combo Ranks

Within the database of 1741 tested combinations, this pairing achieves rank 581. That places it in the 67th percentile of all combos tested in Downfall, which is a strong showing for a system built around components released in late 2020. The data indicates that this combo outperforms a substantial majority of alternatives, though it is not at the very top tier where more recent flagship GPUs would reside.

The nearest rivals for the GPU provide context for the overall system performance. The RX 6800 XT scores 2.6% higher than the NVIDIA GeForce RTX 4070 Ti SUPER in average benchmark scores, and 1.9% higher than the NVIDIA CMP 50HX. However, it trails the NVIDIA RTX A1000 by 1.7% and the Intel Arc A550M by 0.5%. These are close margins, suggesting that the GPU is competitive with a range of mid-to-high-end options. The CPU, meanwhile, sits at the 90th percentile against all CPUs, with its nearest rival, the Intel Core i7-13700, scoring just 1% higher in average benchmark scores. This combination of a top-decile CPU and an upper-tier GPU creates a balanced platform that handles Downfall's horror scenes with consistent frame delivery.

GPU Role

The AMD Radeon RX 6800 XT is built on the RDNA 2.0 architecture with the Navi 21 chip. It features 16 GB of GDDR6 memory on a 256-bit bus, providing 512.0 GB/s of bandwidth. The GPU has 4608 shading units and 128 ROPs, with a texture rate of 648.0 GTexel/s. Its game clock is rated at 2015 MHz, with a boost clock of 2250 MHz. These specifications are directly relevant to the measured results. The 16 GB VRAM buffer is more than sufficient for Downfall at 4K Ultra, as evidenced by the playable 55.1 FPS at that preset. The high memory bandwidth helps maintain frame pacing when moving through the game's dark, texture-heavy environments.

The GPU's compute performance is strong, with an FP32 rating of 20.74 TFLOPS. This raw power translates into the observed frame rates. At 1440p High, the card produces 141.2 FPS, and at 1080p High, it hits 195.8 FPS. The gap between High and Ultra settings at 1440p is notable: 141.2 FPS versus 87.9 FPS, a 38% difference. This indicates that the Ultra preset introduces effects that heavily tax the GPU's shading units and memory subsystem. The card's 72 ray accelerators are present, though Downfall from 2016 does not utilize ray tracing, so the performance is purely from traditional rasterization. The passmark G3D score of 24980 places it in a competitive tier, with an average benchmark score of 49982 across all tests.

Settings Recommendations

For the best balance of visual fidelity and performance, the High preset is the clear sweet spot for this combo. At 1440p, High delivers 141.2 FPS, which is ideal for a high-refresh-rate 1440p monitor. At 4K, High produces 89.1 FPS, which is comfortably above the 60 FPS threshold for smooth gameplay on a standard 4K display. The jump from High to Ultra at 4K costs 34 FPS, a significant penalty that is unlikely to be worth the marginal visual improvements in a horror game where atmosphere matters more than fine details.

For competitive play or maximum frame rates, Low settings at 1080p yield 288 FPS, which would fully saturate a 240Hz monitor. Medium settings at 1080p still provide 234.8 FPS, offering a good middle ground. At 1440p, Low produces 207.5 FPS, which is excellent for esports-style responsiveness. The Ultra preset is best reserved for 1080p, where it maintains 121.8 FPS, or for players who prioritize graphics over frame rate and have a 1440p 60Hz display, where 87.9 FPS still provides a smooth experience. The data clearly shows that High is the most efficient preset, offering a 58% improvement over Ultra at 4K while retaining most of the visual quality.

Measured FPS Breakdown

At 1920x1080, the system delivers 288 FPS on Low, 234.8 FPS on Medium, 195.8 FPS on High, and 121.8 FPS on Ultra. These numbers indicate a highly capable setup for 1080p gaming, with even the most demanding preset exceeding 120 FPS. The scaling from Low to Ultra shows a 58% reduction in frame rate, which is substantial but expected given the increased shading and texture work.

At 2560x1440, the results are 207.5 FPS on Low, 171.4 FPS on Medium, 141.2 FPS on High, and 87.9 FPS on Ultra. The drop from Low to Ultra is 58%, mirroring the 1080p scaling. The High preset at 1440p is notably strong, providing enough headroom for VRR displays. The Ultra preset at this resolution shows a 38% drop from High, indicating that certain Ultra-specific effects are particularly demanding on the GPU's compute units.

At 3840x2160, the frame rates are 130.7 FPS on Low, 104.5 FPS on Medium, 89.1 FPS on High, and 55.1 FPS on Ultra. The 4K Low result is interesting, as it is higher than the 1080p Ultra result, demonstrating that the GPU has significant headroom when settings are reduced. The 4K Ultra result of 55.1 FPS is the only measurement below 60 FPS in the entire dataset, making it the sole instance where this combo fails to hit the smoothness threshold. The scaling from Low to Ultra at 4K is a 58% reduction, consistent with the other resolutions. This consistency suggests that the performance scaling is well-balanced across the resolution range.

CPU Role

The AMD Ryzen 9 5900X provides 12 cores and 24 threads based on the Zen 3 architecture, with a base clock of 3.70 GHz and a boost clock of 4.80 GHz. It has 64 MB of L3 cache and supports DDR4 memory with a bandwidth of 51.2 GB/s. This CPU is a strong match for the RX 6800 XT, as evidenced by its 90th percentile ranking among all CPUs. In Downfall, which is a game that relies on a single main thread for core logic but benefits from multi-threading for physics and AI, the 5900X's high single-thread performance is crucial.

The single-thread benchmark scores are telling: a 3DMark single-thread score of 941 and a Cinebench R23 single-core score of 4680. This high single-core throughput ensures that the CPU does not bottleneck the GPU at 1080p, where the frame rates are exceptionally high. The multi-threaded capabilities, demonstrated by a Cinebench R23 multi-core score of 33150, help maintain consistent frame pacing when the game spawns numerous enemies or complex environmental effects. The CPU's 24 threads provide ample headroom for background tasks, ensuring that game performance is not impacted by system overhead. The data shows that at 4K Ultra, the CPU is not the limiting factor; the GPU is clearly at its maximum, producing 55.1 FPS while the CPU likely has resources to spare. This balance is ideal, as the platform can handle future game releases that may be more CPU-intensive.