Downfall

Resolution Scaling

The measured FPS data for Downfall with the AMD Ryzen 9 9900X3D and NVIDIA GeForce RTX 3080 shows a predictable and steep decline as resolution increases, but the shape of that curve reveals where the bottleneck shifts. At 1080p with Low settings, the combo produces 299 FPS average, which drops to 214 FPS at 1440p and then to 133 FPS at 4K. That represents a 28% reduction from 1080p to 1440p and a further 38% reduction from 1440p to 4K. The scaling is not linear; the gap widens disproportionately at higher resolutions, which is a classic sign of the GPU becoming the primary constraint.

Looking at Medium settings, the pattern holds. The average FPS at 1080p is 245, falling to 175 at 1440p and 109 at 4K. The percentage deltas are similar: a 29% drop from 1080p to 1440p, followed by a 38% drop to 4K. This consistency across settings suggests that the resolution scaling behavior is not an artifact of a particular preset but rather a fundamental characteristic of this hardware pairing in this game. The Ryzen 9 9900X3D, with its 12 cores and 24 threads, is clearly not the limiting factor at any resolution tested; the RTX 3080's rendering workload scales with pixel count, and that is what drives the FPS down.

At High settings, the 1080p average is 201 FPS, which is already significantly below the Low setting's 299 FPS, indicating that the GPU is doing substantially more work per frame even at the lowest resolution. Moving to 1440p High yields 143 FPS, and 4K High yields 89 FPS. The decline from 1080p to 1440p is 29%, and from 1440p to 4K it is 38% — again, the same relative pattern. This uniformity across Low, Medium, and High presets strongly indicates that the Ryzen 9 9900X3D has ample headroom; the CPU is not introducing variability into the scaling curve. The only anomaly is Ultra settings, where 1080p produces 125 FPS, 1440p produces 90 FPS, and 4K produces 56 FPS. The drop from 1080p to 1440p is 28%, and from 1440p to 4K is 38%, matching the other presets. The data shows that the RTX 3080's memory bandwidth of 760.3 GB/s and its 10 GB GDDR6X frame buffer are adequate for this game at 4K, but the sheer pixel throughput demand pushes the GPU to its limits, resulting in the lowest measured average of 56 FPS at 4K Ultra.

The limiting component is unambiguous: the RTX 3080. The CPU's benchmark scores, such as a Cinebench R23 multi-core score of 47737 and a single-core score of 6739, indicate a processor that can feed frames far faster than the GPU can render them at higher resolutions. The 3DMark 16-thread score of 12490 and max-thread score of 13795 further corroborate this. If the CPU were the bottleneck, we would expect the FPS to plateau or even increase slightly at higher resolutions because the CPU would be doing the same amount of work while the GPU takes longer per frame. Instead, the FPS drops consistently with pixel count, confirming a GPU-bound scenario across all settings and resolutions.

CPU Role

The AMD Ryzen 9 9900X3D is a 12-core, 24-thread processor based on the Zen 5 architecture, codenamed Granite Ridge, built on a 4 nm process by TSMC. Its base clock is 4.40 GHz with a boost clock of 5.50 GHz, and it features a large 128 MB L3 cache. In Downfall, a horror title from 2016, the CPU's role is to maintain a high frame rate ceiling, and the data shows it does so without breaking a sweat. The single-thread performance, as measured by a 3DMark single-thread score of 1269 and a Geekbench single-core score of 3041, is more than sufficient for a game that likely does not heavily utilize many cores.

The game's engine appears to be well-optimized for threading, but even so, the 12-core processor provides massive overkill. The Cinebench R20 multi-core score of 20049 and R15 multi-core score of 4811 demonstrate the CPU's raw throughput, but Downfall does not need that level of multi-threaded capability to hit high FPS. The key metric is the single-core and light-thread performance, which is where the 9900X3D excels. The 3DMark 8-thread score of 9002 and 4-thread score of 4885 suggest that even a fraction of the CPU's cores can handle the game's workload without issue.

The data indicates that the CPU is never the limiting factor. At 1080p Low, the average FPS is 299, which is close to the ceiling for many displays and likely near the engine's internal frame rate cap. The boost clock of 5.50 GHz ensures that any single-threaded game logic is processed with minimal latency. The L3 cache of 128 MB is a unique advantage for gaming, as it reduces memory latency for frequently accessed data, which can improve frame pacing. However, in this benchmark, the CPU's contribution is best described as "not holding back the GPU." The GPU is the bottleneck at every resolution and setting, as evidenced by the resolution scaling curve discussed earlier.

The Ryzen 9 9900X3D's nearest rivals in synthetic benchmarks include the Intel Core Ultra 5 245KF, which scores 55093 on average, a delta of -0.6% relative to the 9900X3D's average benchmark score of 54762. The Intel Core Ultra 5 245K scores 54053, which is 1.3% lower. The Intel Xeon 6505P scores 53701, 2% lower, and the Intel Core i7-14700F scores 53620, 2.1% lower. These deltas are minimal, indicating that for a game like Downfall, any of these CPUs would perform similarly in terms of gaming FPS, provided the GPU is the same. The 9900X3D's high single-thread scores, such as the Passmark single-thread score of 4646, place it in a strong position, but the game's performance is not sensitive to the small differences between these rival CPUs.

The CPU's memory support for DDR5 with a dual-channel bus and a bandwidth of 89.6 GB/s is another factor that keeps the CPU fed with data. The 24 PCIe Gen 5 lanes allow for high-speed communication with the GPU, which is a PCIe 4.0 x16 card. This ensures that the data path between the CPU and GPU is not a bottleneck. The data shows that the combination of high single-thread performance, large cache, and fast memory access makes the 9900X3D an ideal partner for the RTX 3080 in this game, but the GPU's capabilities are the definitive constraint on the measured FPS.

FAQ

Q: What is the highest average FPS achieved with this CPU and GPU combo in Downfall?

A: The highest average FPS is 299, which occurs at 1080p with Low settings. This is the only measured configuration that exceeds 299 FPS, and it indicates that the combo can push frame rates well above the refresh rate of most monitors at the lowest resolution and settings.

Q: How does the combo perform at 4K Ultra settings?

A: At 4K Ultra settings, the combo produces an average FPS of 56. This is the lowest average FPS across all measured configurations, and it suggests that the RTX 3080 is heavily strained by the combination of high resolution and maximum graphical fidelity. Players seeking a smooth 60 FPS experience at 4K would need to lower the settings.

Q: Is the CPU or GPU the bottleneck in this game?

A: The data shows the GPU is the bottleneck at all resolutions and settings. The FPS drops consistently as resolution increases, from 299 FPS at 1080p Low to 133 FPS at 4K Low, which is a clear sign of GPU-bound performance. The CPU's high benchmark scores, including a Cinebench R23 multi-core score of 47737, indicate it has significant headroom.

Q: What is the difference in FPS between 1080p and 1440p at High settings?

A: At High settings, the average FPS at 1080p is 201, while at 1440p it is 143. This represents a 29% reduction in performance when moving from 1080p to 1440p. The same percentage drop is observed at other settings, confirming the GPU's scaling behavior.

Q: Are there any settings where the combo achieves over 200 FPS at 1440p?

A: Yes, at 1440p with Low settings, the combo achieves an average FPS of 214. This is the only 1440p configuration that breaks the 200 FPS barrier. Medium settings at 1440p produce 175 FPS, while High and Ultra produce 143 FPS and 90 FPS, respectively.

Q: How does the RTX 3080's performance compare to its nearest rivals in synthetic benchmarks?

A: The RTX 3080 has an average benchmark score of 23172. Its nearest rival, the NVIDIA P106-100, scores 23249, which is 0.3% higher. The AMD Radeon Pro Vega 16 scores 23250, also 0.3% higher, and the AMD Radeon RX 6600M scores 23273, which is 0.4% higher. The AMD Radeon R9 M290X scores 23276, 0.4% higher. These deltas are negligible, suggesting the RTX 3080's synthetic performance is on par with these cards.

Measured FPS Breakdown

The measured FPS data for Downfall is organized by resolution and settings, with average FPS as the primary metric. For 1080p, the Low setting yields an average of 299 FPS. Medium settings produce 245 FPS, with a minimum of 208 FPS and a maximum of 282 FPS. High settings yield 201 FPS. Ultra settings produce 125 FPS. The spread from Low to Ultra at 1080p is substantial, with Ultra delivering 58% less performance than Low. The Medium setting's min and max values indicate that frame times are relatively consistent, with a 74 FPS range between the minimum and maximum.

At 1440p, the Low setting produces an average of 214 FPS. Medium settings yield 175 FPS, with a minimum of 149 FPS and a maximum of 201 FPS. High settings produce 143 FPS. Ultra settings yield 90 FPS. The drop from 1080p to 1440p is consistent across all settings, with average FPS reductions ranging from 28% to 29%. The Medium setting at 1440p shows a min-max range of 52 FPS, which is tighter than at 1080p, suggesting that at higher resolution, the GPU's workload becomes more consistent.

At 4K, the Low setting produces an average of 133 FPS. Medium settings yield 109 FPS, with a minimum of 92 FPS and a maximum of 125 FPS. High settings produce 89 FPS. Ultra settings yield 56 FPS. The 4K Medium setting has a min-max range of 33 FPS, which is the narrowest of all Medium settings across resolutions, indicating that the frame rate is more stable at this high resolution. The 4K Ultra average of 56 FPS is the lowest measured in the entire dataset, and it is below the 60 FPS threshold that many consider the minimum for a smooth experience.

The data shows that the combination of the Ryzen 9 9900X3D and RTX 3080 is capable of high frame rates at 1080p and 1440p, with nearly all settings exceeding 90 FPS. At 4K, the combo can still achieve playable frame rates on Low and Medium settings, but High and Ultra settings will require compromises. The Medium preset appears to be a sweet spot for balancing visual quality and performance, as it offers a significant improvement over Low settings while maintaining a higher average FPS than High or Ultra at every resolution.

How This Combo Ranks

The AMD Ryzen 9 9900X3D and NVIDIA GeForce RTX 3080 combination ranks 776 out of 2928 tested combos in Downfall. This places it in the top 26.5% of all tested configurations, which is a strong result given the game's age and the GPU's position in the market. The RTX 3080, with a percentile vs all GPUs of 68, is a mid-to-high-tier card from the GeForce 30-series, and its performance in this game is respectable. The CPU, with a percentile vs all CPUs of 91, is a high-end processor, but its contribution to this ranking is minimal given that the game is GPU-bound.

The rank of 776 out of 2928 means that there are 775 combos that perform better, likely consisting of newer and more powerful GPUs such as the RTX 40-series or AMD's latest offerings. However, the fact that this combo outperforms the vast majority of tested configurations speaks to the RTX 3080's capability in a game that is not particularly demanding by modern standards. The combo's ranking would be significantly higher if the CPU were the bottleneck, but since the GPU limits performance, the ranking is a direct reflection of the RTX 3080's rasterization throughput.

Comparing to the CPU's nearest rivals, the performance difference is negligible. The Intel Core Ultra 5 245KF has an average benchmark score 0.6% lower than the 9900X3D, and the Intel Core Ultra 5 245K is 1.3% lower. These differences would not translate into a meaningful FPS change in Downfall, meaning that swapping the CPU for one of these rivals would likely not alter the combo's rank. The GPU's nearest rivals, such as the NVIDIA P106-100 or AMD Radeon RX 6600M, have synthetic scores within 0.4% of the RTX 3080, but their gaming performance in this specific title is not measured. The data suggests that the combo's rank is primarily determined by the GPU's ability to handle the game's rendering workload, and the RTX 3080 performs admirably for a card that is now considered end-of-life.

The rank of 776 out of 2928 is a solid mid-tier result. It indicates that for a horror game like Downfall, which may have less demanding graphics than AAA shooters, the RTX 3080 is still a capable choice. Players with this combo can expect a smooth experience at 1080p and 1440p, and a playable experience at 4K with adjusted settings. The ranking also implies that there is room for improvement by upgrading the GPU, but the CPU is not a limiting factor.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this combo depend on the target resolution and desired frame rate. At 1080p, the Medium preset is the recommended choice for most players. It provides an average FPS of 245, which is well above the 144 Hz refresh rate common on many monitors, and it offers a significant visual improvement over Low settings. The High preset at 1080p yields 201 FPS, which is still excellent, but the jump from Medium to High results in an 18% performance drop. The Ultra preset at 1080p produces 125 FPS, which is still playable, but the visual gains over High may not justify the 38% reduction in average FPS.

At 1440p, the Medium preset again stands out as the best balance. It produces an average FPS of 175, which is suitable for high-refresh-rate gaming, and it has a minimum FPS of 149, ensuring that frame drops are unlikely to cause noticeable stutter. The High preset at 1440p yields 143 FPS, which is still smooth, but it is 18% slower than Medium. The Low preset at 1440p offers 214 FPS, which is the highest at this resolution, but the visual quality may be too low for players who value graphical fidelity. The Ultra preset at 1440p produces 90 FPS, which is acceptable but not ideal for competitive play.

At 4K, the Medium preset is the recommended choice for a playable experience. It yields an average FPS of 109, with a minimum of 92 FPS, which is above the 60 FPS threshold for most players. The Low preset at 4K produces 133 FPS, which is smoother but at a significant visual cost. The High preset at 4K yields 89 FPS, which is playable but may experience occasional dips below 60 FPS on some systems. The Ultra preset at 4K is not recommended, as it produces an average FPS of 56, which is below the 60 FPS standard and could result in a less smooth experience.

For players with a 60 Hz display, the High preset at 4K is viable at 89 FPS, but the Medium preset offers more headroom. For players with a 144 Hz display, the Medium preset at 1440p is the best choice, as it exceeds the refresh rate with an average of 175 FPS. The data indicates that the Medium preset provides the most consistent frame rates, as evidenced by the min and max values at each resolution. The Medium preset at 1080p has a min-max range of 74 FPS, at 1440p it is 52 FPS, and at 4K it is 33 FPS, showing that frame pacing improves with resolution. Therefore, the Medium preset is the best overall recommendation for this CPU-GPU combo in Downfall, offering a balance of visual quality and performance that is suitable for most gaming scenarios.