Downfall

The AMD Ryzen 5 8400F and NVIDIA GeForce GTX 1660 Ti combination delivers playable frame rates in Downfall at 1080p and 1440p, but the data clearly shows that the GTX 1660 Ti is the primary bottleneck at higher resolutions and quality settings. The combo ranks in the 1506th position out of 1741 tested configurations, placing it in the lower half of the database, which aligns with its mid-range component pairing.

Resolution Scaling

The measured FPS data reveals a significant performance drop as resolution increases, characteristic of a GPU-limited scenario. At 1080p with Low settings, the combo achieves 149.6 FPS, but this falls to 104.2 FPS at 1440p and 63.7 FPS at 4K. This represents a 30.3% performance loss from 1080p to 1440p, and a further 38.9% loss from 1440p to 4K. The scaling pattern is consistent across all settings presets, indicating that the GTX 1660 Ti's rendering pipeline is saturated as pixel count increases.

The most telling indicator of the GPU bottleneck appears when examining the High preset. At 1080p High, the system produces 103 FPS, which drops to 72.4 FPS at 1440p and 46.4 FPS at 4K. The 4K result falls below the 60 FPS threshold, suggesting that this resolution is only viable with significant graphical compromises. The Ultra preset shows the most dramatic decline, with 60.7 FPS at 1080p dropping to 43.2 FPS at 1440p and 25.5 FPS at 4K — a 58% reduction from 1080p to 4K.

The data suggests that the CPU is not the limiting factor in most scenarios. The Ryzen 5 8400F's strong multi-threaded performance, evidenced by its 3DMark max threads score of 6165, appears sufficient to feed the GPU even at lower resolutions. However, at 1080p Low where the frame rate reaches 149.6 FPS, the CPU's role becomes more pronounced, as the GPU has headroom to render frames faster than the CPU can process game logic.

GPU Role

The GTX 1660 Ti's specifications directly explain the observed performance patterns. With 6 GB of GDDR6 memory on a 192-bit bus delivering 288.0 GB/s bandwidth, the card has adequate memory capacity for Downfall's horror environments at 1080p and 1440p, but the bandwidth becomes strained at 4K where texture fetch demands increase exponentially. The GPU's boost clock of 1770 MHz and base clock of 1500 MHz provide the computational foundation for the measured frame rates.

The 1536 shading units operating at these clocks produce a FP32 throughput of 5.437 TFLOPS, which is modest by modern standards. This explains why the Ultra preset at 4K yields only 25.5 FPS — the GPU's raw compute capability is insufficient for the combined load of high pixel count and maximum visual effects. The 48 ROPs and 96 TMUs further constrain fill rate and texture filtering performance, particularly noticeable in the 4K Ultra result.

The GPU's percentile ranking of 55 among all tested GPUs places it just above the median, and its nearest rival, the AMD Radeon RX 570X, performs within 0.4% of it. This indicates that the GTX 1660 Ti is a competent but not exceptional performer, which aligns with the measured FPS results showing playable frame rates only at lower resolutions and settings. The 12 GB of GDDR6 memory on the 1660 Ti's successor would provide more headroom, but this card's 6 GB capacity appears sufficient for Downfall based on the data.

Settings Recommendations

The measured data points to Medium settings as the optimal balance for most users. At 1080p Medium, the combo delivers 121.1 FPS, which is 17.6% faster than High and more than double the Ultra result of 60.7 FPS. The jump from Medium to High costs 18.1 FPS at 1080p, while the jump from High to Ultra costs a substantial 42.3 FPS. This suggests that Medium captures most of the visual quality benefits while avoiding the performance cliff associated with Ultra.

For 1440p users, Medium remains the recommended preset with 89 FPS, providing smooth gameplay while maintaining reasonable visual fidelity. High at 1440p produces 72.4 FPS, which is still playable for most titles, but the margin for error in demanding scenes is thinner. The 4K results are less favorable, with only Low settings achieving above 60 FPS at 63.7 FPS. Medium at 4K drops to 55.3 FPS, which may be acceptable for slower-paced horror gameplay, but High at 46.4 FPS and Ultra at 25.5 FPS are not recommended for consistent performance.

The data suggests that users prioritizing frame rate stability should select Medium at 1080p or 1440p. Those with high-refresh-rate displays may prefer Low settings at 1080p to reach 149.6 FPS, but the visual compromise is significant. Ultra settings are only viable at 1080p where 60.7 FPS is achievable, but this comes at the cost of 40% performance compared to Medium.

How This Combo Ranks

The combo rank of 1506 out of 1741 tested configurations places this pairing in the 13.5th percentile of all tested combos for Downfall. This low ranking is consistent with the component specifications: the GTX 1660 Ti's 55th percentile GPU ranking and the Ryzen 5 8400F's 82nd percentile CPU ranking combine to produce a system that is CPU-capable but GPU-limited in this title.

The CPU's nearest rivals in the general benchmark database show the Ryzen 5 8400F performing nearly identically to the AMD Ryzen 7 2700X, with a delta of 0% in average benchmark score. The Ryzen 5 7500F trails by 0.3%, while the AMD Ryzen AI 5 PRO 340 is 0.1% ahead. This tight grouping indicates that the CPU performance is well-established and consistent with other mid-range options.

The GPU's nearest rivals include the AMD Radeon RX 570X at 0.4% faster, the NVIDIA RTX A2000 Mobile at 0.8% faster, and the NVIDIA GeForce GTX 680 at 0.8% faster. The Tesla K10 is 0.7% slower. This places the GTX 1660 Ti in a crowded performance band where minor architectural differences determine ranking. Given this context, the 1506th rank reflects the GPU's position in the broader performance hierarchy rather than any specific optimization or deficiency in this game.

FAQ

*Q: What is the best resolution for this combo in Downfall?*

A: The data shows 1080p as the most versatile resolution, with all settings presets achieving at least 60.7 FPS. 1440p is viable for Medium and High settings, while 4K is only playable at Low settings.

Q: How does the GTX 1660 Ti compare to its closest rival?

A: The AMD Radeon RX 570X performs 0.4% better in average benchmark scores, making the two cards functionally equivalent in most scenarios.

Q: Is the Ryzen 5 8400F holding back the GTX 1660 Ti?

A: No. The CPU's 82nd percentile ranking and 3DMark max threads score of 6165 suggest it has ample headroom. The GPU's 55th percentile ranking indicates it is the limiting component in this pairing.

Q: What frame rate can I expect at 1440p Medium settings?

A: The measured average FPS is 89, which provides smooth gameplay for most users. This is 31.6% lower than the 1080p Medium result of 121.1 FPS.

Q: Why is Ultra settings performance so much worse than Medium?

A: At 4K Ultra, the combo achieves only 25.5 FPS compared to 55.3 FPS at Medium. This 54% performance drop suggests Ultra enables effects that heavily tax the GPU's 5.437 TFLOPS compute capability.

*Q: Is this combo suitable for 4K gaming in Downfall?*

A: Only with significant compromises. Low settings achieve 63.7 FPS, but Medium drops to 55.3 FPS and High falls to 46.4 FPS, making 4K viable only for users tolerant of reduced visual quality.

Measured FPS Breakdown

At 1920x1080, the combo produces 149.6 FPS on Low, 121.1 FPS on Medium, 103 FPS on High, and 60.7 FPS on Ultra. The progression shows a 19.0% drop from Low to Medium, a 14.9% drop from Medium to High, and a 41.1% drop from High to Ultra. The 1080p results demonstrate that the GTX 1660 Ti can handle this resolution across all settings, though Ultra pushes the system close to its limits.

At 2560x1440, the measured values are 104.2 FPS on Low, 89 FPS on Medium, 72.4 FPS on High, and 43.2 FPS on Ultra. The scaling from 1080p shows a 30.3% reduction at Low, 26.5% at Medium, 29.7% at High, and 28.8% at Ultra. The consistent ~30% reduction across presets confirms resolution scaling is the dominant factor, with the GPU's memory bandwidth of 288.0 GB/s becoming increasingly strained at this pixel count.

At 3840x2160, the results are 63.7 FPS on Low, 55.3 FPS on Medium, 46.4 FPS on High, and 25.5 FPS on Ultra. The 4K results show a more pronounced drop for Ultra, with a 44.8% reduction from High to Ultra, compared to 41.1% at 1080p and 40.3% at 1440p. This suggests that Ultra settings at 4K overwhelm the GPU's 6 GB memory capacity and 192-bit memory interface, causing severe performance degradation.

CPU Role

The AMD Ryzen 5 8400F provides 6 cores and 12 threads based on the Zen 4 architecture, manufactured on a 4 nm process. Its base clock of 4.20 GHz and boost clock of 4.70 GHz, combined with 16 MB of shared L3 cache, deliver strong single-threaded performance as indicated by its 3DMark single-thread score of 951. The CPU's 82nd percentile ranking among all tested CPUs confirms it is a capable processor for gaming workloads.

The 8400F's multi-threaded capabilities are demonstrated by its Cinebench R23 multicore score of 20851 and PassMark multithread score of 24530. These results show that the CPU can handle heavily threaded workloads, but Downfall does not appear to be CPU-intensive based on the frame rate data. The CPU's 65W TDP and 4 nm process node contribute to efficient operation, though this efficiency does not translate to higher frame rates when the GPU is the limiting factor.

The CPU's nearest rival, the AMD Ryzen 7 2700X, matches its average benchmark score exactly, despite the 2700X being an older generation. The Ryzen 5 7500F trails by just 0.3%, indicating that the 8400F's performance is representative of the current mid-range CPU market. In Downfall, the CPU's 3DMark 16-thread score of 6091 and 2-thread score of 1874 suggest that even the most demanding game scenes would not bottleneck this GPU, as the GPU's frame time at 1080p Low (6.7 ms) leaves ample CPU processing headroom.