Overpower

The benchmark data for Overpower, pairing the Intel Core i5-9400 with the NVIDIA GeForce RTX 5090, reveals a configuration where the GPU's immense raw power is consistently tempered by the older CPU's architectural limits. The RTX 5090, with its 32 GB of GDDR7 memory and 21,760 shading units, is clearly the dominant component, yet the measured frames per second (FPS) across all resolutions and settings suggest a system that is not fully utilizing its potential. This analysis dissects the measured performance to understand the bottleneck dynamics and provide actionable settings guidance.

Resolution Scaling

The FPS scaling from 1920x1080 to 3840x2160 provides a clear picture of where the performance ceiling lies. At 1920x1080 with Ultra settings, the combo produces 120.4 FPS. Moving to 2560x1440 at Ultra, the frame rate drops marginally to 116 FPS, a reduction of approximately 3.7%. Further scaling to 3840x2160 at Ultra yields 110.5 FPS, which is only an 8.2% drop from the 1080p baseline. This remarkably flat scaling curve across a 4x increase in pixel count is the primary indicator of a CPU-bound scenario.

If the RTX 5090 were the limiting factor, the frame rate would plummet as resolution increases, as the GPU would be saturated with pixel shading work. Instead, the data shows that the Intel Core i5-9400, with its 6 cores and 6 threads, is reaching its processing limit even at 1080p. The GPU is being held back, waiting for the CPU to feed it data. The performance delta between Low and Ultra settings at the same resolution reinforces this. At 1920x1080, Low settings yield 160.8 FPS, while Ultra yields 120.4 FPS. While this 25% drop is significant, it is far less than what the RTX 5090 is capable of, indicating that even at Low settings, the CPU cannot push the frame rate high enough to fully engage the GPU.

The most telling comparison is the 4K Low versus 4K Ultra performance. At 3840x2160 Low, the system achieves 146.2 FPS. This is a substantial jump from the 110.5 FPS at Ultra, proving that the RTX 5090 has ample headroom. The difference is due to the reduced shading load at Low settings, which allows the GPU to complete its work faster. However, the fact that 4K Low (146.2 FPS) is still lower than 1080p Low (160.8 FPS) shows that the GPU is starting to become more involved at 4K, but the CPU remains the primary constraint. The system is a study in imbalance: a top-tier GPU shackled by a mid-range processor from a previous generation.

Settings Recommendations

Given the CPU bottleneck, the choice of settings becomes a matter of extracting visual quality without sacrificing frame rate, since the CPU will limit the maximum output regardless. The data shows that the jump from Medium to Ultra at any resolution incurs a notable FPS penalty. For instance, at 2560x1440, Medium yields 127.1 FPS, while Ultra drops to 116 FPS. This 8.7% performance loss for the visual uplift of Ultra settings may not be worth it for competitive play, but for a visually rich action game, it could be acceptable.

The most efficient settings preset is High. At 2560x1440, High provides 123.9 FPS, which is nearly identical to Medium's 127.1 FPS (a mere 2.5% difference) but with better visual fidelity. This pattern holds across all resolutions. At 1920x1080, High delivers 129.9 FPS, while Medium delivers 134.2 FPS, again a negligible difference. The High preset appears to offer the best balance between the CPU-limited frame rate and the GPU's ability to render enhanced effects without additional cost.

For users prioritizing maximum frame rate, Low settings are the clear choice, but the gains are modest. Moving from High to Low at 1920x1080 only increases the average FPS from 129.9 to 160.8, a 23.8% improvement. At 3840x2160, the same transition yields a 25.3% improvement (116.7 to 146.2). This suggests that the CPU bottleneck is so pervasive that even dropping to the lowest settings cannot unlock the RTX 5090's true potential. Therefore, the recommendation is to use the High preset, as it provides the best visual experience for a minimal FPS cost, with the understanding that the frame rate is capped by the i5-9400.

How This Combo Ranks

In the grand scheme of tested hardware combinations, this pairing sits in a peculiar position. The comboRankInGame places it at 382 out of 1744 tested combos, putting it in the top 22% of all configurations. This rank reflects the high absolute performance delivered by the RTX 5090, which ensures the system is far from slow. However, the ranking also reveals the profound mismatch, as many combos with less powerful GPUs but more balanced CPUs likely rank higher due to their ability to maintain higher frame rates in CPU-limited scenarios.

The Intel Core i5-9400's own benchmark data contextualizes its role. Its avgBenchmarkScore is 2305, placing it at the 50th percentile of all CPUs. Its nearest rivals, such as the Intel Core i3-10305 and Intel Core i3-1125G4, have average scores within 0.2% of the i5-9400. This indicates that the CPU is a decidedly mid-range part. In contrast, the RTX 5090's avgBenchmarkScore is 84306, placing it at the 94th percentile of all GPUs, with its nearest rival, the RTX 5090 D, being just 0.1% faster. This contrast in percentile ranks—50th for the CPU versus 94th for the GPU—quantifies the imbalance. The rank of 382 reflects the GPU's dominance, but it also serves as a warning that the system's overall performance is not representative of the RTX 5090's capabilities when paired with a more modern processor.

FAQ

Q: Is the frame rate in Overpower limited by the CPU or the GPU?

A: The data strongly indicates a CPU limitation. The FPS only drops by 8.2% when scaling from 1920x1080 to 3840x2160 at Ultra settings (120.4 to 110.5 FPS). This minimal drop despite a 4x pixel increase is a classic sign that the Intel Core i5-9400 is the bottleneck, preventing the RTX 5090 from working at full capacity.

Q: What is the best settings preset for this CPU-GPU combination?

A: The High preset is the most efficient. At 2560x1440, it delivers 123.9 FPS, which is within 2.5% of the Medium preset's 127.1 FPS, while offering superior visual quality. The FPS gain from dropping to Low is significant but does not justify the loss in visual fidelity, given the system is already CPU-bound.

Q: How does this combo rank compared to other tested configurations?

A: This combo ranks 382nd out of 1744 tested combos. This places it in the top 22% of all configurations. The high rank is due to the sheer power of the RTX 5090, but the rank is likely held back by the older i5-9400, which cannot feed the GPU fast enough.

Q: How much faster is the RTX 5090 compared to its closest rival?

A: The RTX 5090 has an average benchmark score of 84306, which is 0.1% faster than its nearest rival, the NVIDIA GeForce RTX 5090 D, which scores 84241. The performance difference between these two cards is essentially negligible.

Q: What is the performance profile of the Intel Core i5-9400?

A: The i5-9400 has an average benchmark score of 2305, placing it in the 50th percentile of all CPUs. It performs nearly identically to the Intel Core i3-10305 and Intel Core i3-1125G4, with a 0.2% delta in score, indicating its mid-range standing.

Q: Does the RTX 5090's VRAM have any impact on these results?

A: The RTX 5090 has 32 GB of GDDR7 memory. At these settings and resolutions, the VRAM capacity is not a limiting factor. The bottleneck is the CPU's processing speed, not the GPU's memory subsystem, which is capable of a 1.79 TB/s bandwidth.

GPU Role

The NVIDIA GeForce RTX 5090 is unequivocally the star of this pairing, but its role is diminished by the CPU. With 21,760 shading units, 170 RT cores, and a boost clock of 2407 MHz, the GPU is designed to obliterate any graphical workload. Its 32 GB of GDDR7 memory on a 512-bit bus provides a staggering 1.79 TB/s of bandwidth, ensuring that textures and geometry are never starved for data. The GPU's own benchmark scores are exceptional, with a Passmark G3D score of 39650 and a 3DMark Steel Nomad score of 14411, placing it in the 94th percentile of all GPUs.

However, in Overpower, the GPU is often idle, waiting for the i5-9400 to issue draw calls. The measured FPS at 4K Ultra (110.5 FPS) confirms the GPU's raw power, as it is still able to deliver a playable frame rate despite the CPU bottleneck. The GPU's immense compute capability (104.8 TFLOPS FP32) is simply not being utilized to its fullest extent. The VRAM, while vast, is not being stressed, as the game's demands are easily met. The GPU's role is to provide a high ceiling of visual quality, but the CPU dictates the floor of performance. The data shows a system where the GPU is working at a fraction of its capability, a clear case of a generational mismatch. The RTX 5090 is ready for future titles and higher refresh rates, but it needs a more capable processor to realize its full potential in Overpower.