Downfall

The AMD Ryzen 9 9900X and NVIDIA GeForce RTX 4090 pairing delivers an extraordinarily fast experience in Downfall, but the data reveals a complex story about where the bottlenecks lie. With measured frame rates ranging from 80.8 FPS at 4K Ultra to 442.4 FPS at 1080p Low, this system is clearly capable of overwhelming most displays. However, the scaling patterns between resolutions and presets expose a component hierarchy that prioritizes the GPU in some scenarios and the CPU in others, making this a fascinating case study for high-end hardware analysis.

Resolution Scaling

The FPS drops from 1080p to 4K are dramatic and non-linear, indicating a shift in the primary limiting factor. At Ultra settings, the average frame rate falls from 183.6 FPS at 1080p to 135.9 FPS at 1440p, then plummets to 80.8 FPS at 4K — a total reduction of 56% from the lowest to highest resolution. This steep decline at 4K Ultra strongly suggests the RTX 4090 is being pushed to its absolute limits, with the game's most demanding visual effects creating a GPU-bound scenario.

The picture changes considerably at Low settings. Here, the 1080p result of 442.4 FPS drops to 315.7 FPS at 1440p and then to 196.2 FPS at 4K. While the absolute numbers are still high, the percentage drop from 1080p to 4K is 55.7%, nearly identical to the Ultra preset's drop. This consistency across presets indicates that resolution scaling in Downfall is heavily dependent on pixel throughput, regardless of the visual complexity being rendered.

What is particularly telling is the gap between 1440p and 4K at every preset. At High settings, the transition from 213.5 FPS to 133 FPS represents a 37.7% loss, while at Medium the drop from 258.4 to 162.6 FPS is 37.1%. The uniformity of these losses suggests that 4K resolution itself is the dominant cost factor, and the data implies that even the massive 24 GB frame buffer and 1.01 TB/s memory bandwidth of the RTX 4090 cannot fully compensate for the raw pixel count increase at this resolution.

GPU Role

The RTX 4090's specifications read like a benchmark monster: 16,384 shading units, 128 RT cores, and a boost clock of 2520 MHz. The measured results in Downfall confirm this hardware's dominance, with the GPU achieving a 91st percentile ranking versus all GPUs. The 24 GB of GDDR6X memory on a 384-bit bus provides 1.01 TB/s of bandwidth, which appears sufficient to feed the 82.58 TFLOPS of FP32 compute power without causing VRAM-related stutters in this 2016 horror title.

The GPU's clock behavior is interesting when viewed through the resolution scaling data. At 1080p Low, the system delivers 442.4 FPS, which is likely pushing the CPU to its limits rather than the GPU. The RTX 4090's base clock of 2235 MHz and boost of 2520 MHz would be operating well below their potential in such a scenario, as the CPU cannot feed frames fast enough. However, at 4K Ultra with 80.8 FPS, the GPU is clearly the bottleneck, and those clocks are likely sustained at maximum boost throughout the render.

The passmark G3D score of 38,194 places this GPU in elite territory, and its nearest rivals in the benchmark database include professional workstation cards like the NVIDIA Tesla T4 and Quadro P6000, with deltaPct values of -0.4% and -1.3% respectively. This comparison is notable because it shows the RTX 4090's gaming performance is essentially on par with compute-focused cards in synthetic tests, yet in Downfall the measured frame rates reveal a card that is optimized for real-time rendering, with the 176 ROPs and 512 TMUs handling texture-heavy horror scenes efficiently.

CPU Role

The AMD Ryzen 9 9900X brings 12 cores and 24 threads based on Zen 5 architecture, with a base clock of 4.40 GHz and boost up to 5.60 GHz. The CPU's 64 MB of shared L3 cache and dual-channel DDR5 memory support with 89.6 GB/s bandwidth provide the foundation for feeding the RTX 4090. The data shows this CPU is rarely the limiting factor in Downfall, except at the lowest resolution and settings where frame rates exceed 400 FPS.

At 1080p Low, the 442.4 FPS result likely represents a CPU ceiling, as the GPU would have massive headroom at such low graphical demands. The Cinebench R23 multicore score of 46,438 and single-core score of 6,555 indicate strong per-thread performance, which is crucial for a game like Downfall that may not fully utilize all 12 cores. The 3DMark single-thread score of 1,286 further confirms that this CPU can handle the game's main thread without becoming a constraint.

The CPU's 94th percentile ranking versus all CPUs places it in the top tier, with nearest rivals including the AMD Ryzen 9 9900X3D (deltaPct -0.4%) and Intel Core i7-14700F (deltaPct 0.7%). This tight grouping around the 54,000-55,000 average benchmark score range suggests that the 9900X is well-matched to its contemporaries, but the 9900X3D's additional 3D V-Cache could potentially improve Downfall performance if the game benefits from larger cache. The data does not include such a comparison in-game, so this remains speculative.

How This Combo Ranks

This specific combination of AMD Ryzen 9 9900X and NVIDIA GeForce RTX 4090 ranks 27th out of 1,741 tested combos in Downfall. This top 1.55% placement is remarkable, yet it raises questions about what combinations rank higher. Given that the GPU is at the 91st percentile and the CPU at the 94th percentile individually, one might expect a higher combined ranking, but the data suggests that other pairings may achieve better synchronization in this specific title.

The ranking implies that while this system is exceptionally fast, there are 26 other configurations that deliver even higher measured frame rates in Downfall. This could be due to CPUs with higher single-thread performance or different memory configurations that better suit the game's engine. The deltaPct values from the CPU's nearest rivals show that alternatives like the Intel Core Ultra 5 245K (deltaPct -1.5%) and 245KF (deltaPct -1.8%) are actually slightly slower in average benchmark scores, yet their in-game performance could differ due to architectural advantages.

The combo rank also reflects the balance between components. A system with a faster CPU but slightly slower GPU might achieve a better ranking if Downfall is more CPU-sensitive than GPU-sensitive in certain scenarios. The measured FPS data at 1080p Low (442.4 FPS) versus 4K Ultra (80.8 FPS) shows a 5.5x spread, indicating that the game scales heavily with GPU load, but the CPU must be sufficiently fast to avoid becoming the bottleneck at lower resolutions.

Measured FPS Breakdown

At 1920x1080, the system delivers exceptional performance across all settings. Low produces 442.4 FPS, Medium reaches 362.1 FPS, High achieves 294.9 FPS, and Ultra drops to 183.6 FPS. The step from Low to Medium represents an 18.1% decrease, while the jump from High to Ultra is a more substantial 37.7% reduction. This pattern suggests that Ultra settings introduce effects that are disproportionately expensive at this resolution.

Moving to 2560x1440, the frame rates remain high but show the expected resolution penalty. Low yields 315.7 FPS, Medium hits 258.4 FPS, High delivers 213.5 FPS, and Ultra falls to 135.9 FPS. The percentage drops from 1080p to 1440p are relatively consistent: 28.7% for Low, 28.6% for Medium, 27.6% for High, and 26.0% for Ultra. This uniformity indicates that resolution scaling is predictable and not affected by preset level.

At 3840x2160, the performance landscape shifts dramatically. Low maintains a playable 196.2 FPS, Medium drops to 162.6 FPS, High reaches 133 FPS, and Ultra bottoms out at 80.8 FPS. The 4K Ultra result is the only measured configuration that falls below 100 FPS, suggesting that this is the first point where the RTX 4090's capabilities are truly taxed. The spread between Low and Ultra at 4K is 115.4 FPS, compared to 258.8 FPS at 1080p, indicating that the GPU becomes the dominant constraint at higher resolutions.

Settings Recommendations

For players using a 1080p display, the Ultra preset at 183.6 FPS provides an excellent experience without any compromise, as the frame rate remains well above typical high-refresh-rate monitor capabilities. The High preset at 294.9 FPS offers diminishing returns for most users, but those with 360Hz displays would benefit from the extra headroom. Low and Medium settings exceed 360 FPS but offer no visual advantage that justifies the performance sacrifice.

At 1440p, the High preset at 213.5 FPS represents the optimal balance, delivering smooth gameplay on 144Hz and 165Hz displays while maintaining quality. The Ultra preset at 135.9 FPS is still viable for 120Hz displays, but the 36.4% performance hit from High to Ultra may not be worth the visual improvements. The Medium and Low presets at 258.4 FPS and 315.7 FPS provide competitive advantages for esports-style play but are unnecessary for this horror title.

For 4K gaming, the High preset at 133 FPS is the strongest recommendation, as it clears the 120Hz threshold and maintains visual fidelity. The Medium preset at 162.6 FPS is preferable for those prioritizing frame rate, while Ultra at 80.8 FPS is only suitable for 60Hz displays. The Low preset at 196.2 FPS is technically playable but sacrifices too much visual quality for a game that relies on atmosphere and detail for its horror impact.

FAQ

Q: What is the highest measured frame rate for this system in Downfall?

A: The highest recorded average FPS is 442.4 at 1920x1080 with Low settings. This represents the absolute ceiling for this configuration in the measured data.

Q: How does the CPU's benchmark score compare to its nearest rival?

A: The AMD Ryzen 9 9900X has an average benchmark score of 54,450, which is 0.4% lower than the AMD Ryzen 9 9900X3D's 54,681 and 0.7% higher than the Intel Core i7-14700F's 54,097.

Q: Is 4K Ultra playable with this hardware?

A: Yes, but barely at 80.8 FPS average. This is the only preset and resolution combination that drops below 100 FPS, making it marginal for high-refresh-rate 4K displays.

Q: What GPU memory configuration does the RTX 4090 use?

A: It features 24 GB of GDDR6X memory on a 384-bit bus, providing 1.01 TB/s of bandwidth. This appears sufficient for Downfall at all tested settings.

Q: How does this combo rank among all tested configurations?

A: It ranks 27th out of 1,741 tested combos in Downfall, placing it in the top 1.55% of all systems tested for this game.

Q: What is the percentage difference between 1080p and 4K performance at Ultra settings?

A: The average FPS drops from 183.6 at 1080p to 80.8 at 4K, representing a 56% reduction. This demonstrates the extreme demands of 4K rendering in this title.