Pc Building Simulator

The Intel Core i5-12400 paired with the NVIDIA GeForce RTX 4080 SUPER ranks 136th out of 1,769 tested combinations in Pc Building Simulator. This places the combo in the 92nd percentile of all tested systems, a strong result that reflects the high ceiling of the RTX 4080 SUPER. While the i5-12400 is a mid-range CPU, the data shows this pairing is not bottlenecked in this simulation title, as the measured frame rates scale consistently with GPU load across resolutions.

How This Combo Ranks

The combo’s rank of 136 out of 1,769 tested combos places it in the top 8% of all systems evaluated for this game. The i5-12400’s standalone CPU percentile is 77, meaning it outperforms 77% of all CPUs in general benchmarks. However, in Pc Building Simulator, the pairing’s overall rank is driven primarily by the GPU, which holds an 88th percentile rank among all GPUs. The data suggests the CPU is sufficient to feed the RTX 4080 SUPER at all tested settings, as frame rates at 1080p Low reach 351.1 FPS, indicating no severe CPU-imposed ceiling. The nearest CPU rival, the Intel Core i7-9700, scores nearly identically (deltaPct of 0.1%), so the i5-12400’s six P-cores and twelve threads are not a limiting factor here. The gap to the top combos is minimal in practice; the measured FPS at 1440p Ultra (138.9) is already exceptionally high for a simulation title.

GPU Role

The RTX 4080 SUPER is the dominant component in this pairing. It carries 16 GB of GDDR6X memory on a 256-bit bus, yielding 736.3 GB/s of bandwidth. Its boost clock of 2550 MHz and base clock of 2295 MHz are the raw drivers behind the high frame rates. The GPU’s 52.22 TFLOPS of FP32 compute and 80 RT cores make it overqualified for a game like Pc Building Simulator, which is not graphically demanding. The measured data confirms this: at 4K Ultra, the combo still produces 72.6 FPS, which is above the 60 FPS threshold for smooth play. The GPU’s nearest rival, the AMD Radeon RX 6900 XT, scores within 0.2% in average benchmarks, yet the RTX 4080 SUPER’s advantage in ray tracing and DLSS features is not captured in these raw FPS numbers. The 16 GB VRAM is never a constraint at any tested resolution, as even 4K High uses only a fraction of the available memory bandwidth. The GPU’s 320 W TDP and 700 W suggested PSU are relevant for system builders, but the benchmark data shows no thermal throttling effects on the measured FPS.

Settings Recommendations

The measured rows provide clear guidance for the optimal experience. At 1080p, the difference between Low (351.1 FPS) and Ultra (219.5 FPS) is about 60%, but both are far beyond any display’s refresh rate. The best experience at 1080p is Ultra, as the 219.5 FPS still exceeds 144 Hz monitors while delivering maximum visual fidelity. At 1440p, Ultra produces 138.9 FPS, which is just below 144 Hz but still excellent; High (146.8 FPS) is nearly identical, so Ultra is the better choice for a 144 Hz display. At 4K, the decision is more nuanced: Ultra (72.6 FPS) is playable on a 60 Hz display, but High (76.8 FPS) offers a small margin of improvement. For 4K, Medium (108.6 FPS) is the sweet spot, providing a 50% improvement over Ultra while still looking good. The data shows that Low settings are unnecessary at any resolution, as even 4K Low (154.8 FPS) exceeds what most 4K monitors can display. The recommendation is to use Ultra at 1080p and 1440p, and Medium at 4K for the best balance of visual quality and frame rate headroom.

Measured FPS Breakdown

At 1920x1080, the combo delivers 351.1 FPS on Low, 308.8 FPS on Medium, 233.4 FPS on High, and 219.5 FPS on Ultra. The scaling from Low to Ultra represents a 37.5% reduction in frame rate, but even the lowest value is above 200 FPS. At 2560x1440, the numbers are 293.6 FPS (Low), 209.6 FPS (Medium), 146.8 FPS (High), and 138.9 FPS (Ultra). The drop from Low to Ultra at 1440p is 52.7%, which is steeper than at 1080p, indicating the GPU is becoming more stressed. At 3840x2160, the results are 154.8 FPS (Low), 108.6 FPS (Medium), 76.8 FPS (High), and 72.6 FPS (Ultra). The 4K data shows a more pronounced difference between Low and Ultra (a 53.1% reduction), but all settings remain playable. The 4K Low result of 154.8 FPS is notable because it exceeds the 1440p Ultra result of 138.9 FPS, demonstrating that resolution has a larger impact on frame rate than settings at this hardware level. The gap between High and Ultra is consistently small across all resolutions: 6.0% at 1080p, 5.4% at 1440p, and 5.5% at 4K. This suggests that the Ultra preset’s additional effects are not particularly costly in this game.

Resolution Scaling

The frame rate scaling from 1080p to 4K reveals the limiting component. At Low settings, 1080p produces 351.1 FPS, dropping to 293.6 FPS at 1440p (-16.4%) and 154.8 FPS at 4K (-55.9% from 1440p). At Ultra settings, the progression is 219.5 FPS (1080p), 138.9 FPS (1440p, -36.7%), and 72.6 FPS (4K, -47.7% from 1440p). The larger percentage drop at Ultra settings (from 1080p to 4K: 66.9%) compared to Low settings (from 1080p to 4K: 55.9%) indicates that the GPU is the primary bottleneck at higher quality presets. At Low settings, the CPU becomes relatively more involved, but the i5-12400 still manages to push 351.1 FPS at 1080p, suggesting it is not a hard limit. The 4K-to-1440p ratio at High settings (76.8 vs 146.8 FPS, a 47.7% reduction) is nearly identical to the Ultra ratio, confirming that resolution scaling is consistent regardless of preset. The data shows that the RTX 4080 SUPER scales predictably with pixel count, with no anomalous drops that would indicate driver or memory bandwidth issues. The 736.3 GB/s of bandwidth is sufficient to maintain linear scaling from 1440p to 4K, as the 4K results are close to what would be expected from a pure pixel-count increase.

FAQ

Q: Is this combo CPU-bottlenecked at 1080p?

A: No. At 1080p Low, the combo achieves 351.1 FPS, which is far above what any CPU would limit in a simulation game. The i5-12400’s 12 threads and 4.40 GHz boost clock are sufficient, as evidenced by the 233.4 FPS at 1080p High.

Q: Can this system run 4K at 60 FPS with maximum settings?

A: Yes, but barely. At 4K Ultra, the measured average is 72.6 FPS, which is above 60 FPS. However, at 4K High, the average rises to 76.8 FPS, providing a more comfortable margin.

Q: What is the best setting for a 144 Hz 1440p monitor?

A: Ultra settings produce 138.9 FPS, which is just below 144 Hz. High settings produce 146.8 FPS, exceeding the refresh rate. For a perfect match, High is the better choice, but Ultra is acceptable if you tolerate occasional dips.

Q: How does the RTX 4080 SUPER compare to its nearest rival in this game?

A: The nearest rival, the AMD Radeon RX 6900 XT, has an average benchmark score within 0.2% of the RTX 4080 SUPER. In this game, the measured FPS differences would be imperceptible, but the RTX 4080 SUPER’s 16 GB VRAM and higher bandwidth (736.3 GB/s) provide future-proofing.

Q: Does lowering settings from Ultra to Low double the frame rate?

A: At 4K, yes: Low (154.8 FPS) is more than double Ultra (72.6 FPS). At 1080p, the improvement is less dramatic (351.1 vs 219.5 FPS, a 60% increase), because the CPU starts to become a factor at very high frame rates.

Q: Is the i5-12400 holding back the RTX 4080 SUPER?

A: The data indicates no. The i5-12400’s average benchmark score (19850) is within 0.1% of the i7-9700, and the combo still achieves 233.4 FPS at 1080p High. The 4K results (76.8 FPS High) show the GPU is the clear limiter at higher resolutions.