Downfall

The data for Downfall with the AMD Ryzen 7 7800X3D and NVIDIA GeForce RTX 5090 shows a system with extraordinary performance headroom, but the scaling between resolutions reveals where that headroom starts to tighten. At 1080p, the combination is able to push frame rates that approach the limits of most displays, while the jump to 4K demonstrates a significant, though not crippling, dependency on the GPU's rendering capabilities.

Resolution Scaling

The measured FPS data shows a clear and predictable pattern of performance degradation as resolution increases, but the magnitude of that drop is heavily influenced by the graphics settings preset. At the "Low" settings preset, the frame rate falls from 420 FPS at 1920x1080 to 201 FPS at 3840x2160, representing a reduction of approximately 52%. This halving of performance at 4K indicates that even with the RTX 5090's immense compute power, the sheer pixel count of 3840x2160 is a substantial workload that cannot be fully mitigated by the processor.

The "Medium" preset shows a similar trend, with average FPS dropping from 370 at 1080p to 264 at 1440p, and finally to 164 at 4K. The gap between 1080p and 1440p is notable, but the jump to 4K further compresses the performance, confirming that the GPU is the primary scaling factor. The "High" preset reinforces this, as the system delivers 303 FPS at 1080p, 217 FPS at 1440p, and 135 FPS at 4K. This consistent step-down across each resolution tier suggests a balanced scaling curve where the GPU's workload increases proportionally with pixel count.

However, the "Ultra" preset tells a more extreme story. At 1080p, the system still manages a very high 190 FPS, but this falls to 135 FPS at 1440p and plummets to 84 FPS at 4K. The difference between 1080p and 4K on Ultra is a 56% performance loss, which is slightly steeper than the Low preset's 52% drop. This indicates that the Ultra preset introduces additional visual effects that scale super-linearly with resolution, placing a heavier burden on the GPU's shading units and memory bandwidth. The data clearly shows that while the CPU is more than capable of feeding the GPU at lower resolutions, the RTX 5090 becomes the limiting factor at 4K, particularly when the visual fidelity is set to its maximum. The 4K Ultra result of 84 FPS is the only point in the dataset where the system dips below the 100 FPS threshold, marking a clear boundary for this hardware combination.

FAQ

Q: What is the maximum average frame rate recorded for this combination?

A: The highest average FPS recorded is 420 at 1920x1080 with the "Low" settings preset.

Q: How does the performance at 4K Ultra compare to 1080p Ultra?

A: The average frame rate drops from 190 FPS at 1080p Ultra to 84 FPS at 4K Ultra, which is a 56% reduction in performance.

Q: Is the CPU or GPU more likely to be the bottleneck at 1080p?

A: At 1080p, the extremely high frame rates (up to 420 FPS on Low) suggest the GPU has significant headroom, meaning the CPU's single-thread performance is likely the limiting factor in this scenario.

Q: What is the lowest average frame rate observed in the testing?

A: The lowest average frame rate is 84 FPS, observed specifically at 3840x2160 resolution with the "Ultra" settings preset.

Q: Are there any benchmark results for the "High" preset at 1440p?

A: Yes, the "High" preset at 2560x1440 produced an average frame rate of 217 FPS.

Q: Does the RTX 5090's 32 GB of memory provide any advantage in this game?

A: The data shows no performance dips or texture issues at 4K Ultra, which suggests the 32 GB VRAM capacity is sufficient to handle the game's highest memory demands without causing frame rate instability.

GPU Role

The NVIDIA GeForce RTX 5090 is the dominant component in this pairing, and its massive specifications are reflected in the benchmark results. The GPU's 32 GB of GDDR7 memory on a 512-bit bus provides a bandwidth of 1.79 TB/s, which is critical for handling the high-resolution textures and geometry that Downfall presents at 4K. The measured FPS data shows that even at the most demanding settings, the system maintains playable frame rates, with no evidence of memory-related stuttering or frame drops. The 4K Medium preset, for instance, maintains an average of 164 FPS with a minimum of 140 FPS, indicating that the memory subsystem is not being overwhelmed.

The GPU's clock speeds, with a base of 2017 MHz and a boost of 2407 MHz, allow it to sustain high throughput across the 21,760 shading units. This is most evident in the scaling from 1440p to 4K. At the "High" preset, the transition from 2560x1440 to 3840x2160 results in a frame rate drop from 217 FPS to 135 FPS. This 82 FPS reduction is substantial, but the absolute numbers remain high, demonstrating that the GPU's raw compute power (104.8 TFLOPS FP32) is able to handle the increased pixel workload effectively. The RTX 5090's performance in synthetic benchmarks, such as a 3DMark Steel Nomad score of 18,355, corroborates its ability to handle demanding DirectX 12 workloads like those found in this game.

The data suggests that the GPU's role becomes increasingly critical as resolution increases. At 1080p, the frame rates are so high that the processor likely cannot feed the GPU fast enough, leaving performance on the table. However, at 4K, the GPU's workload becomes the definitive constraint. The difference between 135 FPS at 4K High and 84 FPS at 4K Ultra highlights how the GPU's shading and rasterization capabilities are taxed by the Ultra preset's additional visual effects. The RTX 5090 is not just a capable component here; it is the engine that allows this system to approach 4K gaming with high refresh rates, even if the final leap to Ultra settings brings it down to a level that is more in line with standard 60 Hz displays.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of the system's capabilities across three resolutions and four settings presets. At 1920x1080, the system is exceptionally fast, with an average of 420 FPS on Low, 370 FPS on Medium, and 303 FPS on High. The Ultra preset still manages a very high 190 FPS. The minimum FPS recorded at this resolution is 314 on the Medium preset, which indicates that even in demanding scenes, the frame rate does not dip below the refresh rate of most high-end monitors.

Moving to 2560x1440, the performance remains impressive but shows a clear step down. The Low preset averages 323 FPS, Medium averages 264 FPS, and High averages 217 FPS. The Ultra preset, however, takes a more significant hit, dropping to an average of 135 FPS. The Medium preset at this resolution shows a minimum of 225 FPS and a maximum of 304 FPS, showcasing a stable performance envelope.

At 3840x2160, the system's performance is still robust but the GPU's limits become more apparent. The Low preset averages 201 FPS, Medium averages 164 FPS, and High averages 135 FPS. The Ultra preset is the most demanding configuration tested, yielding an average of 84 FPS. The Medium preset at 4K shows a minimum of 140 FPS and a maximum of 189 FPS. This data demonstrates a consistent performance hierarchy where the Low preset offers the highest frame rates, followed by Medium, High, and Ultra, respectively. The difference between the presets is most pronounced at 4K, where the gap between Low (201 FPS) and Ultra (84 FPS) is 117 FPS, highlighting the significant GPU workload increase associated with the highest quality settings.

How This Combo Ranks

In the database of tested combinations, this specific pairing of the AMD Ryzen 7 7800X3D and NVIDIA GeForce RTX 5090 achieves a rank of 87 out of 3,716 combos for Downfall. This places the system in the top 2.3% of all tested configurations, indicating that it is among the most performant setups for this game. The high rank is a direct result of the exceptional performance measured across all resolution and settings combinations, particularly the ability to maintain an average of 135 FPS at 4K High and 84 FPS at 4K Ultra.

The ranking reflects not just the GPU's power, but also the synergy with the CPU. While the RTX 5090 is a top-tier card, the Ryzen 7 7800X3D's strong single-thread performance ensures that the system does not suffer from a CPU bottleneck at lower resolutions, allowing it to achieve the extremely high frame rates seen at 1080p. This combination avoids the pitfall of a powerful GPU being held back by a slower processor, which is a common issue in high-end gaming systems. The position in the 87th percentile of combos suggests that there are only 86 other configurations that can offer a better experience in Downfall, making this a top-tier option for enthusiasts seeking maximum performance.

CPU Role

The AMD Ryzen 7 7800X3D plays a crucial role in enabling the high frame rates observed in this test, particularly at lower resolutions. While the GPU handles the heavy lifting of rendering, the CPU must feed it with draw calls and game logic. The 7800X3D's architecture, based on Zen 4 with a 5 nm process, is well-suited for this task. It features 8 cores and 16 threads, with a base clock of 4.20 GHz and a boost clock of 5.00 GHz. Its large 96 MB shared L3 cache is a defining feature, providing a significant performance advantage in gaming workloads that are sensitive to memory latency.

The benchmark results show that the CPU has a percentile rank of 83 against all CPUs, with an average benchmark score of 33,079. Its nearest rivals include the AMD Ryzen 7 8700G and Intel Core i7-13650HX, which have nearly identical average scores. This indicates that the 7800X3D is a high-performing processor, but its specific value lies in its gaming-oriented cache design. In a game like Downfall, which is a horror title that may involve complex scenes with many objects, the large cache can help reduce the time it takes to fetch data, keeping the GPU fed with instructions.

The CPU's impact is most visible in the 1080p results. At this resolution, the GPU is less stressed, and the frame rates are extremely high (e.g., 303 FPS on High, 420 FPS on Low). These numbers suggest that the CPU is able to process the game's simulation and issue draw calls quickly enough to support such high output. If the CPU were a bottleneck, we would expect the frame rates at 1080p to plateau at a lower value, regardless of the GPU's power. The fact that performance scales from 303 FPS on High to 420 FPS on Low indicates that the CPU has more than enough headroom to handle the game's logic at these settings. At 4K, the CPU's role diminishes as the GPU's rendering time becomes the dominant factor, but the 7800X3D still ensures that the GPU is not starved of data, contributing to the high frame rates seen at 4K High (135 FPS) and even 4K Medium (164 FPS).