Downfall

The Intel Core i5-9400 paired with the NVIDIA GeForce RTX 5080 is an unusual combination in the database, mixing a six-core Coffee Lake processor from 2018 with a current-generation Blackwell flagship GPU. The recorded data shows this pairing delivers far more graphics performance than the CPU can meaningfully feed at lower resolutions, but the gap narrows as resolution increases. For a horror title like Downfall, the results are consistently above the 60 FPS playable threshold across every tested setting and resolution.

FAQ

Q: Can this PC run Downfall at 4K Ultra settings?

A: Yes. The database records an average of 77.6 FPS at 3840x2160 with Ultra settings, which clears the 60 FPS playable threshold with a comfortable margin.

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

A: Ultra settings at 2560x1440 produce an average of 126.3 FPS, making it the most demanding preset that still stays well above 60 FPS. Lower presets still exceed this, but Ultra is the highest quality option that remains fully playable.

Q: How much faster is the RTX 5080 compared to its nearest GPU rivals?

A: The RTX 5080 has an average benchmark score of 56083. The closest rival, the AMD Radeon 8060S, scores 55757 (0.6% slower), the AMD Radeon RX 6750 GRE 12 GB scores 55698 (0.7% slower), the AMD Radeon Pro W5700X scores 54828 (2.3% slower, faster), and the AMD Radeon RX 9070 GRE scores 57367 (2.2% faster). The 5080 sits between these cards in overall GPU compute, within roughly 2.2% of the RX 9070 GRE's lead, though the 5080 holds strong DirectX 12 performance.

Q: What is the FPS difference between Low and Ultra settings at 1080p?

A: At 1920x1080, Low settings average 269.9 FPS, High average 233.3 FPS, Medium average 253.1 FPS, and Ultra average 179.2 FPS. The scaling from Low to Ultra represents a reduction of 90.7 FPS, yet Ultra still delivers 179.2 FPS, nearly three times the 60 FPS threshold.

Q: Is the Intel Core i5-9400 a limiting factor for this combo?

A: The CPU shows a significant gap between resolutions that suggests it is less of a bottleneck at higher resolutions. The data shows that at 4K Ultra 77.6 FPS, at 1440p Ultra 126.3 FPS, and at 1080p Ultra 179.2 FPS, which means as resolution drops, the CPU becomes more capable of pushing the GPU's output headroom, but the 60 FPS threshold is never threatened at any resolution.

Best Settings per Resolution

The most demanding preset that stays at or above 60 FPS at each resolution is Ultra. At 3840x2160, the recorded average of 77.6 FPS at Ultra settings clears the playable threshold with 17.6 FPS to spare. Lower presets like High at 126 FPS, Medium at 155.9 FPS, Low at 188.6 FPS all exceed the 60 FPS mark as well.

At 2560x1440, Ultra settings average 126.3 FPS. High settings average 202 FPS, Medium averages 224.1 FPS, Low averages 243.5 FPS. All four presets exceed the 60 FPS threshold. The jump from 1440p to 4K Ultra reduces the Ultra average from 126.3 FPS down to 77.6 FPS, but the 60 FPS target is still met.

At 1920x1080, Ultra settings average 179.2 FPS. Medium settings average 253.1 FPS, High settings average 233.3 FPS, Low settings average 269.9 FPS. Every preset at 1080p is well above 60 FPS, with Ultra providing the highest possible visual quality at 179.2 FPS.

The data confirms the best settings scaling across all three resolutions: Ultra remains the most demanding preset that still stays at least 60 FPS at every resolution, with the highest FPS being 179.2 at 1080p Ultra and the lowest being 77.6 at 4K Ultra.

CPU and GPU Roles

The scaling between resolutions and presets shows that the GPU is the dominant component, with the CPU becoming less of a bottleneck at higher resolutions. At low settings, the 4K Low average is 188.6 FPS, which is 89.4 FPS lower than the 1080p Low average of 269.9 FPS. The FPS drop from low to medium settings at 4K is 32.7 FPS (from 188.6 to 155.9 FPS at medium), while the drop from 1440p to 4K at medium is 31.8 FPS (from 224.1 to 155.9 FPS).

At Ultra settings, the CPU presents a similar pattern, 4K Ultra averages 77.6 FPS, 1440p Ultra averages 126.3 FPS, and 1080p Ultra averages 179.2 FPS, showing a 48.7 FPS drop from 1440p to 4K and a 52.9 FPS drop from 1080p to 4K Ultra. The CPU shows less of a limitation at 4K Ultra, since the GPU load is so high that the 60 FPS target is, the CPU matters less.

At 1080p and 1440p, the GPU has more headroom, allowing the CPU to produce higher FPS outputs such as 179.2 FPS and 126.3 FPS at Ultra. This indicates that for Downfall the combination relies heavily on GPU power at lower resolutions, while the CPU still provides enough headroom to push the 60 FPS target easily. At 4K Ultra the CPU has less of an impact on FPS, but the GPU alone is capable of delivering the 77.6 FPS needed to stay playable.

The Verdict

The database verdict for this combo is clear: yes. The recorded data shows that Downfall runs at or above 60 FPS at every resolution and preset tested. At 3840x2160, Ultra settings average 77.6 FPS, High settings average 126 FPS. At 2560x1440, Ultra averages 126.6 FPS. At 1920x1080, Ultra averages 179.2 FPS. All settings across all three resolutions clear the 60 FPS threshold.

The most demanding preset at 4K Ultra is 77.6 FPS is 17.6 FPS above the playable threshold, 1440p Ultra 126.3 FPS is 66.3 FPS above 60 FPS at 1440p, and 179.2 FPS is 119.2 FPS above the 60 FPS threshold. No resolution fails the 60 FPS target, so the Intel Core i5-9400 and NVIDIA RTX 5080 can run Downfall at Ultra settings without issue.

The CPU and GPU data indicate that the 5080 is a top-tier GPU, ranking in the 87th percentile versus all GPUs.

Similar Performance Alternatives

The RTX 5080 has nearest rivals that provide nearly identical GPU performance. The AMD Radeon RX 9070 GRE scores 57367 average, 2.2% higher than the 5080, making it a close alternative. The AMD Radeon RX 6750 GRE 12 GB scores 55698, 0.7% lower, the AMD Radeon Pro W5700X scores 54828, 2.3% lower, and the AMD Radeon 8060S scores 55757, 0.6% lower. These cards would behave similarly in Downfall, with the RTX 5080 posting scores within 2.2% of the RX 9070 GRE.

The Intel Core i5-9400 has nearest rivals with nearly identical CPU scores. The Intel Core i3-10305 scores 2264 average, 0.4% higher, and the AMD Ryzen 5 PRO 1500 scores 2246, 0.4% lower, the Intel Core i7-1068NG7 scores 2259, 0.2% lower, and the Intel Core i7-10710U scores 2248, 0.3% higher. These CPUs would provide similar CPU performance when paired with the RTX 5080 for Downfall.

The Intel Core i5-9400 ranks in the 47th percentile versus all CPUs and the 559th out of 3716 combos in the database.

The data shows that the RTX 5080 at 4K Ultra 77.6 FPS, 1440p Ultra 126.3 FPS, 1080p Ultra 179.2 FPS, and the CPU and GPU roles are clear, the combination ranks 559th out of 3716 combos.