Downfall

The AMD Ryzen 5 8400F and AMD Radeon RX 7900 XTX pairing delivers a remarkably wide performance envelope in Downfall, ranging from a playable 67.9 FPS at 4K Ultra to a blistering 363.7 FPS at 1080p Low. The benchmark data shows this combo ranks 228th out of 1741 tested configurations, placing it in the top 13% of all systems measured. This is a high-refresh-rate horror machine that can also handle 4K, provided you are selective with settings.

Settings Recommendations

The measured rows show a clear hierarchy across all three resolutions. At 4K, the Ultra preset produces an average of 67.9 FPS, which is technically playable but leaves little headroom for drops in intense scenes. The High preset at 4K jumps to 110.8 FPS, a substantial improvement of 42.9 FPS over Ultra, making it the sensible choice for a smooth 4K experience. Medium at 4K offers 132.7 FPS, but the visual cost of dropping from High to Medium is rarely worth the extra 21.9 FPS in a horror title where atmosphere matters. The data suggests High is the sweet spot at 3840x2160.

At 1440p, the story shifts. High delivers 175.6 FPS, while Medium reaches 214.7 FPS. For competitive or high-refresh 1440p monitors, Medium provides a significant 39.1 FPS advantage over High. However, the Ultra preset at 106.8 FPS still clears the 100 FPS mark, so players with 144Hz displays might prefer the visual fidelity of High or Ultra. Low at 1440p hits 256.4 FPS, which is only relevant for esports-style play that this horror game does not demand. For 1440p, High offers the best balance of image quality and frame rate.

At 1080p, the system is almost certainly CPU-bound at lower settings. Low produces 363.7 FPS, Medium drops to 298.4 FPS, and High sits at 246.1 FPS. The gap between Medium and High is 52.3 FPS, which is noticeable on a 240Hz panel. Ultra still manages 153.7 FPS, which is excellent for maxed-out visuals. Since the GPU has massive headroom at 1080p, the recommendation is to use High or Ultra for the best visual experience, as the frame rates remain well above 144 FPS. The measured data indicates that High at 1080p is the most balanced preset for everyday play.

GPU Role

The Radeon RX 7900 XTX is the dominant component in this pairing. Its 24 GB of GDDR6 memory across a 384-bit bus provides 960.0 GB/s of bandwidth, which is critical for 4K texture streaming. The GPU's boost clock of 2498 MHz and game clock of 2365 MHz, built on the RDNA 3.0 architecture with 6144 shading units, drive the frame rates in this title. The chip's 61.39 TFLOPS of FP32 compute power is more than sufficient for Downfall's horror rendering demands.

The GPU's role becomes evident when examining the FPS scaling. At 1080p, the GPU is barely taxed, as shown by the 117.6 FPS difference between Low and Ultra settings. At 4K, that same settings gap expands to 91.6 FPS, demonstrating the GPU's increasing workload at higher resolutions. The 24 GB frame buffer ensures that even Ultra textures at 4K do not hit memory limits, which is why the card can still produce 67.9 FPS at 4K Ultra. The GPU's pixel rate of 479.6 GPixel/s and texture rate of 959.2 GTexel/s handle the game's visual effects efficiently.

Benchmark results show this GPU sits at the 85th percentile among all GPUs, with an average benchmark score of 44019. Its nearest rival, the NVIDIA GeForce RTX 4070 Ti, scores 44900, putting the RX 7900 XTX 2% behind that card. Interestingly, the RTX 4090 Mobile scores 43667, placing it 0.8% behind this desktop GPU. The RX 7900 XTX's 355 W TDP and 750 W suggested PSU requirement are worth noting for system planning, but the performance data justifies the power draw.

CPU Role

The Ryzen 5 8400F plays a supporting role in most scenarios but becomes the bottleneck at lower resolutions. This 6-core, 12-thread Zen 4 processor with a 4.20 GHz base clock and 4.70 GHz boost clock provides solid single-thread performance. Its Cinebench R23 single-core score of 2943 and multi-core score of 20851 indicate strong gaming performance. The CPU's 16 MB of shared L3 cache and 83.2 GB/s memory bandwidth are adequate for feeding the GPU in this title.

At 1080p, the CPU's limits become visible. The jump from 1080p High (246.1 FPS) to 1080p Low (363.7 FPS) represents a 117.6 FPS increase, which is largely driven by reduced GPU load. However, the fact that 1080p Low does not exceed 400 FPS suggests the CPU is capping performance at around 364 FPS. At 1440p, the CPU still keeps up, as evidenced by the 256.4 FPS at Low settings. But at 4K, the GPU becomes the primary limiter, and the CPU has ample headroom.

The CPU's benchmark percentile of 82 places it near the AMD Ryzen 7 2700X, which has an average score of 25057 versus the 8400F's 25064. This is a 0% delta, meaning they are statistically identical in synthetic tests. The Ryzen 5 7500F scores 24993, putting it 0.3% behind the 8400F. For Downfall, the CPU's single-thread performance is sufficient to avoid major bottlenecks at 1440p and 4K, making it a logical pairing with the high-end GPU.

How This Combo Ranks

This specific combination of Ryzen 5 8400F and RX 7900 XTX achieves a rank of 228 out of 1741 tested combos in Downfall. That places it in the 87th percentile of all systems tested, which is impressive given the relatively modest CPU. The ranking suggests that the GPU is doing most of the heavy lifting in this title, as the CPU is not among the top-tier gaming processors.

The combo rank of 228 indicates that 227 other configurations outperform it, likely featuring faster CPUs like the Ryzen 7 7800X3D or Intel Core i9-14900K paired with similar or better GPUs. However, the 8400F's performance is close to the Ryzen 7 2700X in synthetic benchmarks, yet the 2700X would likely score lower in gaming due to older architecture. The data shows this combo outperforms the majority of systems, and the 8400F does not hold back the 7900 XTX significantly, especially at higher resolutions where the GPU is the limiting factor. For a 1440p or 4K gamer, this rank of 228 out of 1741 is strong, indicating a well-balanced system for this title.

Resolution Scaling

The FPS data reveals a clear resolution scaling pattern. Moving from 1080p Low (363.7 FPS) to 1440p Low (256.4 FPS) results in a 29.5% drop. From 1440p Low to 4K Low (159.5 FPS), the drop is 37.8%. This scaling is steeper than typical, indicating that the GPU is becoming more stressed at higher resolutions, but the CPU is still keeping pace.

At High settings, the scaling is more moderate: 1080p High (246.1 FPS) to 1440p High (175.6 FPS) is a 28.7% drop, and 1440p High to 4K High (110.8 FPS) is a 36.9% drop. The 4K High result of 110.8 FPS is particularly notable because it shows the GPU can maintain high frame rates at 4K when settings are not maxed out.

The Ultra preset shows the most dramatic scaling. 1080p Ultra (153.7 FPS) to 1440p Ultra (106.8 FPS) is a 30.5% drop, while 1440p Ultra to 4K Ultra (67.9 FPS) is a 36.4% drop. The 4K Ultra result of 67.9 FPS is the only sub-100 FPS measurement in the entire dataset, highlighting that Ultra settings at 4K push the GPU to its limits. The pattern suggests that the CPU is not a limiting factor at 4K, as the FPS drops are consistent with pure GPU workload scaling.

Measured FPS Breakdown

At 1920x1080, the measured average FPS values are: Low 363.7, Medium 298.4, High 246.1, and Ultra 153.7. The difference between Low and Medium is 65.3 FPS, while Medium to High is 52.3 FPS. The largest gap is between High and Ultra at 92.4 FPS, indicating that Ultra settings impose a heavy load on the GPU even at 1080p.

At 2560x1440, the measured averages are: Low 256.4, Medium 214.7, High 175.6, and Ultra 106.8. The gap between Low and Medium is 41.7 FPS, Medium to High is 39.1 FPS, and High to Ultra is 68.8 FPS. The Ultra preset at 1440p is the only setting below 150 FPS, showing that this resolution is a good middle ground for high refresh rates.

At 3840x2160, the measured averages are: Low 159.5, Medium 132.7, High 110.8, and Ultra 67.9. The Low to Medium gap is 26.8 FPS, Medium to High is 21.9 FPS, and High to Ultra is 42.9 FPS. The 4K Ultra result of 67.9 FPS is the only measurement below 100 FPS across all resolutions and settings. The data shows that High at 4K is the recommended ceiling for consistent 100+ FPS performance, while Medium offers a comfortable buffer at 132.7 FPS.