Overpower

The Intel Core i5-10400F paired with the NVIDIA GeForce RTX 5080 produces a fascinating bottleneck scenario in Overpower. The data indicates a system where the GPU is severely underutilized at lower resolutions, with performance scaling that points directly to the CPU as the limiting factor. At 1080p, the combo achieves an average of 129.1 FPS on Ultra settings, but moving to 4K Ultra only drops this to 104.4 FPS—a mere 19% reduction in frame rate despite a 4x increase in pixel count. This compression of performance across resolutions is the classic signature of a CPU-bound configuration, where the RTX 5080’s immense rendering power cannot be fully unleashed until the resolution increases enough to shift the burden onto the graphics card.

Resolution Scaling

The frame rate deltas between 1080p and 4K are remarkably small, revealing a system that is heavily constrained by the processor. At Low settings, the spread is 168.8 FPS at 1080p versus 151.6 FPS at 4K, a difference of only 17.2 FPS. At Medium settings, the gap narrows further: 143.1 FPS at 1080p drops to 130.6 FPS at 4K, a 12.5 FPS difference. The High preset shows similar behavior, with 136.6 FPS at 1080p versus 122.6 FPS at 4K—a 14 FPS gap. The Ultra preset, which places the most stress on the GPU, shows the largest relative drop: 129.1 FPS at 1080p down to 104.4 FPS at 4K.

This pattern indicates that the RTX 5080 is barely breaking a sweat at 1080p and 1440p, with the i5-10400F failing to feed it enough frames. The fact that the 4K results are so close to the 1080p numbers—often within 15-20%—suggests that even at 4K, the CPU is still a significant contributor to the overall frame time. The GPU’s 16 GB of GDDR7 memory and 960.0 GB/s bandwidth are more than sufficient for this title, so the scaling bottleneck is not memory-related. Instead, the data shows that the i5-10400F’s 6 cores and 12 threads are the primary constraint, unable to push frame rates higher regardless of the resolution selected.

GPU Role

The RTX 5080’s specifications are formidable: 10,752 shading units, 84 RT cores, and a boost clock of 2617 MHz. Its 16 GB of GDDR7 memory on a 256-bit bus delivers 960.0 GB/s of bandwidth, which is more than adequate for Overpower’s demands. The GPU’s benchmark scores reinforce its capability—a 3DMark Steel Nomad DX12 score of 8637 and a Passmark G3D score of 36,565 place it in the 89th percentile of all GPUs. However, the measured FPS data shows that this power is being held back.

At 4K Ultra, the combo achieves 104.4 FPS, which is a respectable result but far from the GPU’s potential. The RTX 5080 is capable of far higher frame rates in less CPU-constrained scenarios, as evidenced by its 56.28 TFLOPS FP32 compute. The GPU’s role in this pairing is to provide headroom: even when the CPU is maxed out, the GPU can still deliver playable frame rates at 4K. The data shows that the GPU is not the limiting factor at any resolution tested, as the performance gaps between Low and Ultra settings are relatively modest—at 1080p, Low yields 168.8 FPS while Ultra yields 129.1 FPS, a 39.7 FPS difference that reflects GPU workload scaling, not a GPU ceiling.

How This Combo Ranks

Among the 1,744 tested combinations in Overpower, this pairing ranks 298th. This places it in the top 17% of all tested combos, which is a strong overall position. However, the ranking is more evidence of the RTX 5080’s raw power than to the synergy of the pairing. The i5-10400F ranks in the 73rd percentile of all CPUs, with an average benchmark score of 14,168. Its nearest rival, the AMD EPYC 7552, scores 14,115 (0.4% lower), while the AMD Ryzen 3 7320C scores 14,277 (0.8% higher). This puts the i5-10400F in the mid-range of CPU performance, which is mismatched with a top-tier GPU.

The GPU, by contrast, sits in the 89th percentile, with an average benchmark score of 59,188. Its nearest rival, the Intel Arc A570M, scores 58,239 (1.6% lower), and the Intel Arc Pro A60 scores 60,326 (1.9% higher). The rank of 298 suggests that many other combinations deliver better overall performance, likely those pairing the RTX 5080 with more powerful CPUs. The data indicates that while this combo is playable, it leaves substantial performance on the table due to the CPU bottleneck.

Measured FPS Breakdown

At 1920x1080, the combo delivers 168.8 FPS on Low, 143.1 FPS on Medium, 136.6 FPS on High, and 129.1 FPS on Ultra. The step from Low to Medium is a 25.7 FPS drop, while the step from Medium to High is only 6.5 FPS, and from High to Ultra is 7.5 FPS. This suggests that the CPU is beginning to cap performance even at 1080p, as the GPU should easily handle these settings.

At 2560x1440, the results are 164.4 FPS on Low, 133.7 FPS on Medium, 131.1 FPS on High, and 120.7 FPS on Ultra. The Low setting benefits from reduced CPU overhead, but the Medium, High, and Ultra settings show a compressed range of 13 FPS, indicating that the CPU is the dominant constraint. The 1440p results are only slightly lower than 1080p, reinforcing the bottleneck analysis.

At 3840x2160, the frame rates are 151.6 FPS on Low, 130.6 FPS on Medium, 122.6 FPS on High, and 104.4 FPS on Ultra. Here, the GPU is finally being taxed more heavily, but the gap between Low and Ultra (47.2 FPS) is still smaller than what a GPU-bound system would show. The 4K Ultra result of 104.4 FPS is the most GPU-dependent figure in the dataset, suggesting that at this setting, the RTX 5080 is beginning to approach its limits, but the CPU still has influence.

CPU Role

The Intel Core i5-10400F is a 6-core, 12-thread processor from the Comet Lake architecture, built on Intel’s 14 nm process. It has a base clock of 2.90 GHz and a boost clock of 4.30 GHz, with 12 MB of shared L3 cache. Its benchmark scores are modest: Cinebench R23 multi-core yields 10,297, and single-core yields 1,453. Geekbench multi-core is 5,783, and single-core is 1,454. These numbers place it in the 73rd percentile, but its performance is clearly insufficient to fully drive the RTX 5080.

The CPU’s memory bandwidth of 42.7 GB/s and DDR4 support are also limiting factors. In Overpower, the CPU’s role is to process game logic and draw calls, and the data shows it is maxed out even at 1080p Low. The fact that 1080p Low (168.8 FPS) is only 11.4% faster than 4K Low (151.6 FPS) proves that the CPU is the primary bottleneck across all settings. The i5-10400F’s single-thread performance, as measured by the 3DMark single-thread score of 688, is simply not enough to keep up with the RTX 5080’s frame generation capability.

Settings Recommendations

Based on the measured data, the optimal settings for this combo depend on the target resolution. At 1080p, the Ultra preset delivers 129.1 FPS, which is already well above the 60 FPS threshold. There is little reason to drop below High (136.6 FPS) or even Medium (143.1 FPS) unless chasing the absolute highest frame rates, but the gains are minimal. The data suggests that at 1080p, the system is CPU-bound, so choosing High or Ultra makes sense for visual quality without sacrificing much performance.

At 1440p, the High preset (131.1 FPS) is the sweet spot, offering a good balance of visual fidelity and frame rate. The Ultra preset (120.7 FPS) is also viable, but the 10.4 FPS drop from High may not justify the visual gains. The Medium preset (133.7 FPS) and Low preset (164.4 FPS) are options for competitive play, but the CPU bottleneck means that the frame rate gains are not as large as one might expect.

At 4K, the High preset (122.6 FPS) is the recommended setting, as it provides a smooth experience with good visuals. The Ultra preset (104.4 FPS) is still playable and offers the best image quality, but the 18.2 FPS drop from High is more significant at this resolution. The Medium preset (130.6 FPS) is a solid choice for those wanting higher frame rates, while Low (151.6 FPS) is for maximum performance. Overall, the data shows that High settings at any resolution provide the most consistent experience, with the GPU finally becoming the limiting factor at 4K Ultra.

FAQ

Q: Is the Intel Core i5-10400F a bottleneck for the RTX 5080 in Overpower?

A: Yes. The measured FPS data shows minimal scaling from 1080p to 4K, with 1080p Ultra at 129.1 FPS and 4K Ultra at 104.4 FPS. This 19% drop over a 4x pixel increase indicates the CPU is the primary constraint.

Q: What is the best resolution for this combo?

A: The data shows that 1440p High (131.1 FPS) offers the best balance, but 4K High (122.6 FPS) is also excellent. The system is CPU-bound at all resolutions, so higher resolutions are recommended to leverage the GPU.

Q: How does this combo rank against other tested systems?

A: It ranks 298th out of 1,744 combinations, placing it in the top 17%. This is due to the strong GPU, but the CPU holds back overall performance.

Q: Does the RTX 5080’s 16 GB VRAM matter for this game?

A: The 16 GB of GDDR7 memory and 960.0 GB/s bandwidth are more than sufficient. The data does not show VRAM as a limiting factor, as performance scales consistently across settings.

Q: Should I use Low or Ultra settings for competitive play?

A: At 1080p, Low yields 168.8 FPS versus Ultra’s 129.1 FPS. The 39.7 FPS gain from Ultra to Low is modest, suggesting that even Ultra is playable, but Low offers the highest frame rates.

Q: Is this CPU-GPU pairing well-matched?

A: No. The CPU ranks in the 73rd percentile, while the GPU ranks in the 89th. The performance data shows the CPU limits the GPU, making this an unbalanced pairing for Overpower.