Lockdown Protocol

Lockdown Protocol pairs a six-core Intel Core i5-9400 with the flagship NVIDIA GeForce RTX 5080 in a combination that is heavily skewed toward GPU throughput. The measured data reveals a system that delivers highly playable frame rates across all tested configurations, but the scaling patterns suggest the aging CPU is a constant companion in the bottleneck conversation. The RTX 5080, with its 16 GB of GDDR7 memory and a 960.0 GB/s bandwidth, is clearly the dominant component, yet the i5-9400’s 6 threads and 9 MB of shared L3 cache keep the frame-time curve from reaching its full potential at lower resolutions.

Settings Recommendations

The data presents a clear hierarchy for visual fidelity versus performance. At 1080p, the Ultra preset yields an average of 125.1 FPS, while the Low preset reaches 162.3 FPS—a difference of 37.2 FPS, or roughly 30%. The Medium preset sits nearly in the middle at 141.5 FPS. For competitive play on a 1080p display, the Low preset offers the highest headroom, but the jump to Medium costs only about 21 FPS while likely providing a noticeably cleaner image. However, the High preset at 135.9 FPS is only 5.6 FPS slower than Medium, making it the more sensible choice for most players who want a balance of quality and speed.

At 1440p, the pattern shifts. The Ultra preset drops to 109.7 FPS, which remains playable, but the High preset at 121 FPS is a mere 8.4 FPS behind Low’s 146.4 FPS. The scaling from Low to High at 1440p is tighter than at 1080p, indicating that the GPU is starting to become the primary limiter. For a 1440p monitor, the High preset appears to be the sweet spot, delivering 121 FPS without sacrificing the visual polish that the RTX 5080 can provide. The Medium preset at 129.5 FPS is a viable alternative, but High’s marginal cost in frames makes it the recommended default.

At 4K, the choices become more consequential. The Ultra preset falls to 77.4 FPS, which is below the 90 FPS threshold many players prefer for fast-paced FPS titles. The High preset at 107.2 FPS is the standout, offering a 29.8 FPS advantage over Ultra while still maintaining high-quality textures and effects. The Low preset at 124.5 FPS is the fastest option, but the gap between Low and High is only 17.3 FPS, which is a small price for the visual uplift. For 4K, the High preset is the clear recommendation, as it provides the best combination of frame rate and image quality without dipping into the sub-100 FPS territory that Ultra occupies.

How This Combo Ranks

Within the database of tested combinations for Lockdown Protocol, this specific pairing of the Intel Core i5-9400 and the NVIDIA GeForce RTX 5080 ranks 566th out of 1,637 total combos. This places it in the upper third of all tested systems, which is impressive given the age of the CPU. The percentile positioning suggests that while the GPU is a top-tier part—ranking in the 89th percentile among all GPUs—the CPU’s 50th percentile standing drags the overall combo down. The data implies that the RTX 5080 is being held back by the i5-9400, but not to the point of diminishing returns; the rank still reflects a system capable of high-refresh-rate gaming.

The CPU’s nearest rivals in synthetic benchmarks—the Intel Core i3-10305 and the Intel Core i3-1125G4—both score within 0.2% of the i5-9400’s average benchmark score of 2,305. This tells us that the i5-9400 is performing exactly as expected for its generation, with no unexpected throttling or boost anomalies. The fact that it sits 0.6% above the Core i7-8809G but 0.4% below the Xeon E-2134 reinforces that the CPU is a mid-pack performer. In the context of Lockdown Protocol, this means the combo’s rank is likely limited by CPU-bound scenarios, particularly at lower resolutions where the GPU has more headroom to work with.

GPU Role

The NVIDIA GeForce RTX 5080 is the undisputed workhorse in this pairing. Its 16 GB of GDDR7 memory on a 256-bit bus provides 960.0 GB/s of bandwidth, which is more than sufficient for Lockdown Protocol’s texture-heavy environments. The GPU’s boost clock of 2,617 MHz and 10,752 shading units allow it to push massive frame rates, but the data shows that the CPU frequently prevents it from reaching its ceiling. At 1080p, the difference between Low and Ultra is 37.2 FPS, which is a modest spread for a GPU of this caliber—suggesting that even at Low settings, the CPU is introducing a bottleneck that caps the RTX 5080’s output.

The GPU’s synthetic benchmark scores reinforce its dominance. A 3DMark Steel Nomad DX12 score of 8,637 and a PassMark G3D score of 36,565 place it in the 89th percentile of all GPUs, meaning it outperforms the vast majority of installed hardware. However, its nearest rivals in the database—the Intel Arc A570M and the Intel Arc Pro A60—are within 1.9% of its average score, which is surprising given the RTX 5080’s price point. This suggests that in synthetic tests, the GPU is not as far ahead as one might expect, but in actual gaming workloads like Lockdown Protocol, the 16 GB VRAM buffer and ray tracing capabilities likely provide tangible benefits that synthetic benchmarks do not fully capture.

Measured FPS Breakdown

The measured FPS data provides a complete picture of performance across three resolutions and four quality presets. At 1080p, the average frame rates range from 125.1 FPS at Ultra to 162.3 FPS at Low. The progression is predictable: Low > Medium > High > Ultra, with each step down in quality yielding roughly 10-20 FPS. The 1080p Ultra score of 125.1 FPS is particularly noteworthy because it is only 15.3 FPS behind the 1440p High score of 121 FPS, indicating that the resolution increase has a minimal impact when the CPU is the limiting factor.

At 1440p, the frame rates compress slightly. The Low preset hits 146.4 FPS, but the Ultra preset drops to 109.7 FPS. The gap between Low and Ultra is 36.7 FPS, which is similar to the 1080p spread. However, the High preset at 121 FPS is only 8.4 FPS behind Medium at 129.5 FPS, showing that the GPU is starting to take on more of the load. The 4K results show the largest divergence: Ultra falls to 77.4 FPS, while High stays at 107.2 FPS. This 29.8 FPS gap between High and Ultra is the largest of any resolution, suggesting that Ultra settings at 4K are pushing the GPU’s raw compute limits, while High settings allow the RTX 5080 to breathe.

Resolution Scaling

The scaling from 1080p to 4K reveals the classic signs of a CPU bottleneck at lower resolutions. At High settings, the frame rate drops from 135.9 FPS at 1080p to 121 FPS at 1440p—a modest 10.9% decrease—and then to 107.2 FPS at 4K, another 11.4% drop. This linear degradation indicates that the GPU is not being fully utilized at 1080p; if it were, the drop to 1440p would be more pronounced. The Low preset tells a similar story: 162.3 FPS at 1080p falls to 146.4 FPS at 1440p and 124.5 FPS at 4K. The 4K Low score is still higher than the 1080p Ultra score, which is a direct indication that the i5-9400 is the primary constraint at lower resolutions.

At Ultra settings, the scaling is more dramatic. The 1080p Ultra score of 125.1 FPS drops to 109.7 FPS at 1440p and then plummets to 77.4 FPS at 4K. The 4K Ultra score is 47.7 FPS lower than the 1080p Ultra score, a 38% reduction that clearly shows the GPU becoming the dominant bottleneck at this resolution. This is the expected behavior for a high-end GPU paired with a mid-range CPU: at low resolutions, the CPU holds back performance, but as resolution increases, the GPU’s workload expands and it becomes the limiting factor. The crossover point appears to be around 1440p, where neither component is fully saturated.

FAQ

Q: What is the best resolution to run Lockdown Protocol with this combo?

A: The data shows that 1440p at High settings provides 121 FPS, which is a strong balance between visual quality and frame rate. The 4K High setting at 107.2 FPS is also viable, but 1440p offers more headroom for competitive play.

Q: How much performance does the Ultra preset cost over High?

A: At 1080p, Ultra is 10.8 FPS slower than High. At 1440p, the gap widens to 11.3 FPS. The largest penalty is at 4K, where Ultra is 29.8 FPS slower than High.

Q: Is the Intel Core i5-9400 holding back the RTX 5080?

A: Yes, the data suggests a CPU bottleneck at lower resolutions. The 1080p Low preset’s 162.3 FPS is likely capped by the CPU, as the GPU should be capable of higher frame rates. The CPU’s 50th percentile ranking versus the GPU’s 89th percentile confirms this imbalance.

Q: What are the frame rate differences between Low and Medium settings?

A: At 1080p, Low delivers 162.3 FPS while Medium delivers 141.5 FPS, a 20.8 FPS difference. At 1440p, the gap is 16.9 FPS (146.4 vs 129.5). At 4K, the gap narrows to 11.2 FPS (124.5 vs 113.3).

Q: Can this combo handle 4K gaming?

A: Yes, but with caveats. The High preset at 4K runs at 107.2 FPS, which is smooth. The Ultra preset drops to 77.4 FPS, which may be acceptable for slower games but is less ideal for a fast-paced FPS.

Q: How does the RTX 5080 compare to its nearest rivals in synthetic benchmarks?

A: The RTX 5080’s average benchmark score of 59,188 is 1.6% higher than the Intel Arc A570M and 2.5% higher than the Intel Arc A580, but it is 1.9% lower than the Intel Arc Pro A60.

CPU Role

The Intel Core i5-9400 is a six-core, six-thread processor from the Coffee Lake Refresh generation, running at a base clock of 2.90 GHz and a boost clock of 4.10 GHz. Its 9 MB of shared L3 cache and dual-channel DDR4 memory support are modest by modern standards, and its 14 nm process node is several generations behind the GPU’s 5 nm node. In synthetic benchmarks, the i5-9400 scores 7,969 in Cinebench R23 multi-core and 1,125 in single-core, placing it in the 50th percentile of all CPUs. This is a mid-pack result, and it shows in Lockdown Protocol.

The CPU’s role in this combo is to feed the RTX 5080 with enough draw calls and physics calculations to keep the GPU busy. At 1080p, the data implies that the i5-9400 is often the limiting factor, as the frame rate differences between settings are smaller than they would be with a faster CPU. The fact that the 1080p Low preset only reaches 162.3 FPS—while the GPU is theoretically capable of much more—suggests that the CPU’s six threads are maxed out in certain scenes. At 4K, the CPU’s constraint is less pronounced, as the GPU’s workload dominates. The i5-9400’s nearest rivals, such as the Core i3-10305, are within 0.2% of its average score, indicating that it is performing exactly as expected. For Lockdown Protocol, this CPU is sufficient for 60-120 FPS gaming, but it will prevent the RTX 5080 from showing its full potential at lower resolutions.