Downfall

The Intel Core i5-14600KF paired with the NVIDIA GeForce GTX 1660 Ti produces a wide performance envelope in Downfall, ranging from a highly playable 148.7 FPS at 1080p Low to a stuttering 27.4 FPS at 4K Ultra. The scaling curve is steep and consistent, revealing a system that is firmly GPU-limited at higher resolutions but capable of tapping significant frame rates when the resolution drops. This analysis breaks down the measured data to determine where the bottleneck lies and how to best configure the game.

Resolution Scaling

The measured frames per second data shows a predictable yet dramatic decline as resolution increases, though the magnitude of the drop varies significantly by preset. At the Low preset, the system delivers 148.7 FPS at 1920x1080, which falls to 107 FPS at 2560x1440—a 28% reduction—and then to 65.9 FPS at 3840x2160, a further 38% drop from the 1440p figure. This scaling suggests that even at Low settings, the rendering load at 4K is substantial enough to nearly halve the performance found at 1080p.

The Medium and High presets follow a similar trajectory but with lower absolute floor values. At High settings, the frame rate moves from 99.7 FPS at 1080p to 70.1 FPS at 1440p, and finally to 47 FPS at 4K. The Medium preset shows 122.7 FPS, 89.3 FPS, and 52.9 FPS across the same resolution steps. The Ultra preset is the outlier in terms of playability, starting at 64.4 FPS at 1080p, dropping to 44.2 FPS at 1440p, and collapsing to 27.4 FPS at 4K.

The pattern here indicates that the GTX 1660 Ti is the limiting component in this configuration. The delta between 1080p and 1440p performance is relatively modest for the Low preset (41.7 FPS difference), but the jump from 1440p to 4K at the same settings creates a 41.1 FPS chasm. This non-linear scaling is characteristic of a GPU hitting its memory bandwidth or shading unit limits, as the pixel count quadruples from 1080p to 4K but the frame rate does not drop by an equal factor—instead, it falls by roughly 55% on the Low preset, suggesting some CPU headroom remains that the GPU cannot utilize. The data shows that 1080p is the only resolution where the system can consistently exceed 60 FPS across most presets, with the Ultra preset being the sole exception at 64.4 FPS.

GPU Role

The NVIDIA GeForce GTX 1660 Ti is built on the Turing architecture with a TU116 chip manufactured on a 12 nm process at TSMC. It features 6 GB of GDDR6 memory on a 192-bit bus, providing 288.0 GB/s of bandwidth. The GPU operates at a base clock of 1500 MHz with a boost clock of 1770 MHz, and its 1536 shading units deliver a peak FP32 performance of 5.437 TFLOPS. These specifications place the card in the 55th percentile of all GPUs, with an average benchmark score of 13925.

In the context of Downfall, the GPU's 6 GB VRAM capacity is sufficient for the measured presets, as the data shows no catastrophic failure at 4K that would indicate memory exhaustion. However, the card's proximity to rivals like the AMD Radeon RX 570X (0.4% higher score) and the NVIDIA Tesla K10 (0.7% lower score) suggests it sits in a performance tier where resolution scaling is heavily penalized. The GTX 1660 Ti's nearest rivals all have average scores within 1% of its own, meaning the 4K Ultra result of 27.4 FPS is not an anomaly but rather a reflection of the card's absolute compute ceiling.

The boost clock behavior is relevant here; at 1080p Low, the GPU can likely sustain its 1770 MHz boost under lighter loads, contributing to the 148.7 FPS result. As resolution increases, the sustained load on the 120 W TDP card may cause clock fluctuations, though the data does not specify this. The 288.0 GB/s bandwidth appears to be a bottleneck at 4K, as the frame rate drops are more severe than a pure pixel-count scaling model would predict. For instance, moving from 1440p High (70.1 FPS) to 4K High (47 FPS) represents a 33% drop, while the pixel count increases by 125%, indicating that fill-rate and memory bandwidth constraints are dominant.

Settings Recommendations

Based exclusively on the measured rows, the optimal balance of visual quality and performance is achieved at 1080p with the High preset, which delivers 99.7 FPS. This is a 23 FPS improvement over Medium (122.7 FPS) while maintaining a frame rate well above the 60 FPS threshold for smooth gameplay. The Ultra preset at 1080p is playable at 64.4 FPS, but the 35.3 FPS cost over High suggests diminishing returns for the visual upgrade.

For users with 1440p displays, the Low preset is the only reliable option for high refresh rates, producing 107 FPS. The Medium preset at 89.3 FPS is also viable, but High drops to 70.1 FPS, which may be acceptable for slower-paced horror gameplay. The Ultra preset at 44.2 FPS is below the ideal playability threshold and should be avoided.

At 4K, the data strongly advises against Ultra (27.4 FPS) and High (47 FPS) presets. The Low preset yields 65.9 FPS, which is technically playable but represents a significant visual downgrade. The Medium preset at 52.9 FPS is a middle ground, but the 13 FPS difference over Low does not justify the reduced headroom. The sweet spot for this configuration is clearly 1080p High, which offers the best combination of fidelity and performance without dipping below the 60 FPS mark.

FAQ

*Q: Can this system run Downfall at 4K?*

A: Yes, but only at the Low preset, which achieves 65.9 FPS. The Medium preset drops to 52.9 FPS, High to 47 FPS, and Ultra to 27.4 FPS, making 4K playable only with significant visual compromises.

Q: What is the best preset for 1440p gaming?

A: The Low preset offers the highest frame rate at 107 FPS, making it ideal for competitive play. Medium at 89.3 FPS is a solid alternative, while High at 70.1 FPS remains above 60 FPS but leaves little margin for demanding scenes.

Q: How does the GTX 1660 Ti compare to its nearest rivals?

A: The GTX 1660 Ti has an average benchmark score of 13925, placing it 0.4% above the AMD Radeon RX 570X and 0.8% above the NVIDIA GeForce GTX 680. It trails the NVIDIA Tesla K10 by 0.7% and the RTX A2000 Mobile by 0.8%.

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

A: The resolution scaling data indicates the GPU is the limiting factor. At 1080p Low, the system achieves 148.7 FPS, but this drops to 65.9 FPS at 4K Low—a 55.7% reduction that aligns with GPU-bound behavior rather than CPU limitations.

Q: What frame rate can I expect at 1080p Ultra?

A: The measured average is 64.4 FPS, which is playable but close to the 60 FPS minimum. For a more comfortable margin, the High preset at 99.7 FPS is recommended.

*Q: Does the GTX 1660 Ti's VRAM limit performance in Downfall?*

A: The 6 GB GDDR6 memory does not appear to cause a hard cap, as all presets run without crashing. However, the 288.0 GB/s bandwidth likely contributes to the severe frame rate drops at 4K, particularly on Ultra where the 27.4 FPS result is well below playability.

CPU Role

The Intel Core i5-14600KF provides substantial headroom for this GPU pairing, as evidenced by the frame rate scaling. This 14-core, 20-thread Raptor Lake processor features a base clock of 3.50 GHz and a boost clock of 5.30 GHz, with 24 MB of shared L3 cache. Its benchmark results are strong: a Cinebench R23 multicore score of 32889 and a single-core score of 4643, placing it in the 93rd percentile of all CPUs.

The CPU's nearest rivals show it is not the limiting factor in Downfall. The i5-14600KF has an average benchmark score of 49367, which is 0.4% higher than the Intel Core i5-14600K and 0.6% higher than the AMD Ryzen 9 5950X. It trails the AMD EPYC 4345P by 0.5% and the Intel Xeon Gold 5318H by 1.4%. These margins are negligible for gaming, meaning the CPU can easily feed the GTX 1660 Ti at all measured settings.

Evidence of CPU headroom appears in the 1080p results. At Low settings, the system produces 148.7 FPS, which is likely near the GPU's maximum output. The CPU's 5.30 GHz boost clock and high single-thread performance (Cinebench R23 single-core score of 4643) ensure that frame pacing remains consistent even when the GPU is saturated. At 4K Ultra, where the GPU drops to 27.4 FPS, the CPU is clearly not the bottleneck, as its compute resources are far underutilized. The 125 W TDP and dual-channel memory support (DDR4/DDR5) are more than adequate for this workload, and the CPU's percentile ranking confirms it is a high-end part that will not constrain this GPU in Downfall.