Downfall

The AMD Ryzen 5 8400F and AMD Radeon RX 580 pairing delivers a playable but tightly constrained experience in Downfall, with performance that collapses under the weight of 4K Ultra settings. The data shows a system where the GPU’s age is the primary limiting factor, though the CPU’s modern architecture keeps frame rates from becoming a bottleneck at lower resolutions. The measured results across the three resolutions and four settings presets paint a clear picture of a combination that is best suited to 1080p gaming, with 1440p possible only at reduced quality levels.

Resolution Scaling

The frame rate drop from 1080p to 4K is severe, indicating that the Radeon RX 580 is the dominant constraint. At High settings, the average FPS falls from 69 at 1920x1080 to 47.4 at 2560x1440, a reduction of 21.6 frames, and then plunges to 32.9 at 3840x2160. This represents a cumulative loss of over 52% of the 1080p performance when moving to 4K. The pattern is consistent across all settings, with the Low preset dropping from 104.8 FPS at 1080p to 71 at 1440p and then to 43.6 at 4K. This scaling behavior is typical of a GPU with a 256-bit memory bus and 8 GB of GDDR5, as the pixel fill rate and memory bandwidth are overwhelmed by the 4K resolution.

The 1080p to 1440p transition shows a more moderate penalty, with the gap between High and Medium settings narrowing as resolution increases. At 1080p, the difference between Low and Ultra is 59.3 FPS (104.8 vs 45.5), but at 1440p this gap shrinks to 38 FPS (71 vs 33). By 4K, the spread is just 26.3 FPS (43.6 vs 17.3). This compression of the settings range at higher resolutions confirms that the GPU is saturating regardless of the quality preset; the limiting component is the rendering pipeline, not the CPU. The Ryzen 5 8400F, with its 6 cores and 12 threads based on Zen 4, has ample headroom at these frame rates, as evidenced by its strong multi-threaded benchmark scores, so the scaling curve is almost entirely dictated by the Polaris 20 chip.

How This Combo Ranks

The combination ranks 1604 out of 1741 tested combos in Downfall, placing it in the bottom 8% of all configurations. This low percentile is a direct consequence of the GPU’s age relative to the game’s demands. The RX 580’s benchmark percentile is 53, meaning it sits just above the median for all GPUs, but its nearest rivals in the synthetic tests include the NVIDIA GeForce GTX 570 and GTX 950, both of which are significantly older architectures. In contrast, the Ryzen 5 8400F performs far better, with a percentile of 82 and an average benchmark score of 25064, placing it in the upper tier of CPUs.

This mismatch is visible in the combo’s ranking. The CPU is capable of driving much higher frame rates, but the GPU caps the output. The nearest CPU rivals, such as the AMD Ryzen 7 2700X and AMD Ryzen 5 7500F, have nearly identical average scores (25057 and 24993, respectively), yet they would pair with faster GPUs in a more balanced system. The data suggests that the 8400F is wasted in this combination, as its multi-threaded performance, which reaches 20851 in Cinebench R23, is never fully utilized in a game that is rendering at an average of 32.9 FPS at 4K High. The rank of 1604 reflects a system where the GPU is the bottleneck, and the CPU’s potential is left on the table.

GPU Role

The AMD Radeon RX 580’s role in this pairing is defined by its 8 GB of GDDR5 memory and a 256-bit bus, which provides a bandwidth of 256.0 GB/s. This is sufficient for 1080p and 1440p gaming, but the 4K results show the limits of this configuration. At 4K Ultra, the average FPS falls to 17.3, which is effectively unplayable. The GPU’s base clock of 1257 MHz and boost clock of 1340 MHz, combined with 2304 shading units and 32 ROPs, produce a pixel rate of 42.88 GPixel/s and a texture rate of 193.0 GTexel/s. These figures are modest by modern standards, and the data reflects this: the FP32 performance is 6.175 TFLOPS, which is a fraction of what contemporary GPUs offer.

The VRAM capacity is not the primary issue in this game, as the 8 GB allocation is adequate for the measured settings. Instead, the memory bandwidth and compute throughput are the limiting factors. At 1080p, the GPU can maintain a playable 45.5 FPS at Ultra, but the drop to 4K Ultra (17.3 FPS) indicates that the memory subsystem is saturated. The GPU’s average benchmark score of 13559 places it near the GTX 570 (13564) and GTX 950 (13549), which are both older and slower cards. The 14 nm process node and GCN 4.0 architecture are showing their age in this title, and the data suggests that the GPU is the sole reason the combo ranks so low.

Settings Recommendations

For the best experience, the data strongly favors 1080p with Medium or High settings. At 1920x1080, the Medium preset delivers 87.1 FPS, which is smooth and responsive, while High drops to 69 FPS, still comfortably playable. The Low preset at 104.8 FPS is the fastest, but the visual quality loss is not worth the extra frames given the High preset’s 69 FPS. The Ultra preset at 1080p yields 45.5 FPS, which is borderline, and the jump from High to Ultra costs 23.5 FPS for presumably marginal visual gains. For a horror game like Downfall, where atmosphere matters, High settings at 1080p provide the best balance of immersion and performance.

At 2560x1440, the Medium preset at 59.9 FPS is the recommended choice, as it maintains a near-60 FPS average. The High preset at 47.4 FPS is playable but not ideal, and Low at 71 FPS sacrifices too much detail. The 4K resolution is not viable for this combo; even the Low preset at 43.6 FPS is below the 60 FPS threshold, and the Ultra preset at 17.3 FPS is unplayable. The measured rows indicate that the 1080p High setting is the sweet spot, with 1440p Medium as a secondary option for users with higher-resolution monitors who are willing to accept a lower frame rate.

Measured FPS Breakdown

The full breakdown of measured FPS reveals a consistent hierarchy across all resolutions. At 1920x1080, the Low preset averages 104.8 FPS, Medium 87.1 FPS, High 69 FPS, and Ultra 45.5 FPS. The performance gap between Low and Ultra is 59.3 FPS, which shows the GPU’s sensitivity to the settings preset. At 2560x1440, the scores are 71 FPS (Low), 59.9 FPS (Medium), 47.4 FPS (High), and 33 FPS (Ultra). The drop from 1080p to 1440p at High is 21.6 FPS, while at Ultra it is 12.5 FPS, indicating that the higher settings are already taxing the GPU at 1080p.

At 3840x2160, the results are 43.6 FPS (Low), 35.6 FPS (Medium), 32.9 FPS (High), and 17.3 FPS (Ultra). The most striking observation is the minimal difference between Medium and High at 4K (2.7 FPS), which suggests that the GPU is hitting a hard performance ceiling. The Ultra preset at 4K is a catastrophic 17.3 FPS, rendering it unusable. The data shows that the GPU’s performance scales poorly with resolution increases, and the 4K results are consistently below playable thresholds. The 1080p Low setting is the only configuration that exceeds 100 FPS, while the 1080p Medium and High settings are the most balanced, offering high frame rates without the visual compromises of Low.