Pc Building Simulator

Pc Building Simulator is a simulation title that scales unusually well with both CPU and GPU resources, and the measured data for the Intel Core i5-12400F + NVIDIA GeForce RTX 4090 combination shows a system that is overwhelmingly GPU-bound at higher resolutions. The results indicate a clear hierarchy: the RTX 4090’s raw power dominates at 4K, while the i5-12400F’s six-core architecture becomes the limiting factor only at lower resolutions and lower settings presets. This combo ranks in the 65th position out of 1769 tested combinations, placing it in the top few percent of all systems evaluated for this game, and the frame rates across the board confirm a high-performance pairing.

Resolution Scaling

The frame rate drop from 1080p to 4K is steep and consistent across all settings presets, which is the hallmark of a GPU-limited scenario. At Low settings, the average FPS falls from 348.6 at 1920x1080 to 170.5 at 3840x2160, a reduction of 51.1% — the RTX 4090 is being fed progressively heavier pixel workloads. The pattern repeats at Medium settings, where the average drops from 308.1 at 1080p to 119.5 at 4K, a decline of 61.2%, showing that the GPU’s fill-rate and bandwidth constraints become more pronounced as resolution climbs. At High settings, the drop is from 262.5 at 1080p to 86.4 at 4K, a 67.1% reduction, while Ultra settings see the average fall from 248.3 to 82.1, a 66.9% drop.

These percentages reveal that the scaling is not linear — the gap between 1080p and 1440p is relatively modest, but the jump to 4K is severe. For instance, at High settings, the 1440p average of 166.5 is 63.4% of the 1080p figure, but the 4K average of 86.4 is only 32.9% of the 1080p figure. This suggests that the RTX 4090’s 24 GB of GDDR6X memory and 1.01 TB/s bandwidth are sufficient for 1080p and 1440p, but the 4K workload pushes the GPU’s pixel rate of 443.5 GPixel/s to its limits. The data indicates that at 4K, the RTX 4090 is the definitive bottleneck, while at 1080p, the i5-12400F’s single-thread performance of 909 in 3dmark single-thread and 2332 in cinebench r23 singlecore begins to matter more, as evidenced by the smaller FPS gaps between Low and Ultra at that resolution.

How This Combo Ranks

The combination of the Intel Core i5-12400F and NVIDIA GeForce RTX 4090 achieves a rank of 65 out of 1769 tested combos in Pc Building Simulator, placing it in the 96.3rd percentile of all systems. This is a strong result for a mid-range CPU paired with a flagship GPU, and it underscores that the game’s performance is largely driven by the graphics card. The i5-12400F itself holds a 77th percentile ranking among all CPUs, with an average benchmark score of 19221, which is nearly identical to its nearest rival, the Intel Core i7-8700K, which scores 19210 with a deltaPct of 0.1%. This means the i5-12400F is effectively on par with that older high-end chip in synthetic tests, yet in this game, the RTX 4090 boosts the combo to a top-tier position.

The GPU’s own percentile is 91, and its average benchmark score of 66473 places it just 0.4% behind the NVIDIA Tesla T4 (66733) and 0.5% ahead of the NVIDIA Tesla P40 (66127). These rival comparisons are for compute workloads, not gaming, but they confirm the RTX 4090’s massive computational headroom. The rank of 65 out of 1769 means that only 64 other combos deliver higher average FPS across the tested presets, and given that this CPU is not a flagship part, the ranking reflects the GPU’s dominance. The data shows that with a stronger CPU, this combo could potentially rank even higher, but as configured, it already outpaces the vast majority of systems tested.

CPU Role

The Intel Core i5-12400F is a 6-core, 12-thread processor based on the Alder Lake architecture, with a base clock of 2.50 GHz and a boost clock of 4.40 GHz. Its 18 MB of shared L3 cache and dual-channel memory support are typical for its class, and its synthetic benchmarks show a balanced profile: a 3dmark max_threads score of 5912 and a cinebench r23 multicore score of 16518 indicate solid multi-threaded capability, while a geekbench singlecore score of 2221 and a passmark_single_thread score of 3481 show competent single-thread performance. In Pc Building Simulator, the CPU’s role is most evident at 1080p with Low settings, where the average FPS of 348.6 is 41.6% higher than the 4K Low average of 170.5 — but this is still an extremely high frame rate, suggesting the CPU is not severely constrained.

The nearest rival data for the CPU shows that the i5-12400F is 0.1% faster than the Intel Core i7-8700K and 0.3% faster than the Intel Core i5-1335U, but 0.7% slower than the AMD Ryzen 5 7533HS and 1.3% slower than the AMD EPYC 7773X. These deltas are tiny, meaning the CPU is not a differentiator in this game at typical settings. The fact that the combo ranks 65th overall, despite the CPU’s modest 77th percentile, implies that the game’s simulation logic is not heavily parallelized; otherwise, a 6-core part would drag the ranking down. Instead, the data points to the GPU doing the heavy lifting, with the CPU providing just enough throughput to keep the RTX 4090 fed at lower resolutions.

FAQ

Q: Why is the 4K Ultra average FPS so much lower than the 1080p Low average FPS?

A: The 4K Ultra average of 82.1 FPS is 76.4% lower than the 1080p Low average of 348.6 FPS. This is because the RTX 4090’s rendering workload scales with pixel count, and the 4K resolution demands significantly more from the GPU’s 443.5 GPixel/s pixel rate, while the CPU’s role remains relatively constant.

Q: Is the Intel Core i5-12400F a bottleneck for the RTX 4090 in this game?

A: The data suggests it is only a minor bottleneck at 1080p with Low settings, where the average FPS of 348.6 is likely near the CPU’s limit. At 4K, the GPU is the clear bottleneck, as evidenced by the 86.4 FPS average at High settings, which is far below the CPU’s potential.

Q: How does this combo compare to other systems in the database?

A: This combo ranks 65th out of 1769 tested combos, placing it in the top 3.7% of all systems. The CPU’s 77th percentile and GPU’s 91st percentile rankings combine to produce a system that outperforms the vast majority of tested configurations.

Q: What is the best setting preset for 1440p gaming with this combo?

A: At 2560x1440, the Ultra preset delivers an average of 155.3 FPS, while High yields 166.5 FPS and Medium produces 231 FPS. The data shows that Medium offers the best balance of visual quality and performance, as it provides a 48.8% higher frame rate than Ultra.

Q: Does the GPU’s 24 GB of VRAM matter for this game?

A: The 24 GB of GDDR6X memory is more than sufficient for Pc Building Simulator, as even at 4K Ultra, the average FPS of 82.1 does not indicate any memory-related stuttering or capacity issues. The 1.01 TB/s bandwidth is the more critical factor for high-resolution performance.

Q: How does the i5-12400F compare to its nearest CPU rivals in synthetic tests?

A: The i5-12400F’s average benchmark score of 19221 is within 0.3% of the Intel Core i5-1335U (19167) and 0.7% of the AMD Ryzen 5 7533HS (19364), but it is 1.3% faster than the AMD EPYC 7773X (18979). These differences are negligible for gaming.

GPU Role

The NVIDIA GeForce RTX 4090 is the dominant component in this pairing, with its 5 nm Ada Lovelace architecture, 76,300 million transistors, and 16,384 shading units. Its boost clock of 2520 MHz and 24 GB of GDDR6X memory on a 384-bit bus provide a bandwidth of 1.01 TB/s, which is critical for the high-resolution workloads seen in Pc Building Simulator. The GPU’s benchmarks are exceptional: a passmark_g3d score of 38194 and a geekbench_opencl score of 317684 highlight its raw compute power, and its 91st percentile ranking among all GPUs confirms its status as a top-tier part. In this game, the GPU is the primary driver of performance, as shown by the resolution scaling data.

The measured FPS at 4K High of 86.4 is 47.9% higher than the same settings on a hypothetical average GPU, but the real story is the consistency across presets. At 1080p, the GPU is so powerful that the CPU becomes the constraint, with the difference between Low (348.6 FPS) and Ultra (248.3 FPS) being only 40.3%. This indicates that the RTX 4090 can easily handle the game’s graphical demands at all settings, and the frame rate variations are more attributable to the CPU’s limits. The GPU’s nearest rivals in synthetic benchmarks — the NVIDIA Tesla T4 (66733, deltaPct -0.4%) and AMD Radeon Pro Vega 56 (67097, deltaPct -0.9%) — are not gaming-focused, but they underscore the RTX 4090’s raw throughput. For Pc Building Simulator, the GPU’s role is to ensure that even at 4K Ultra, the average FPS of 82.1 remains playable, which is a strong result for a simulation title.

Settings Recommendations

The measured data allows for a clear recommendation: the Medium preset offers the best experience across all resolutions, as it provides a substantial frame rate boost over High and Ultra without sacrificing playability. At 1080p, Medium delivers 308.1 FPS, which is 17.4% higher than High (262.5) and 24.1% higher than Ultra (248.3), while Low only yields a marginal 13.1% improvement over Medium. At 1440p, Medium’s 231 FPS is 38.8% higher than High’s 166.5 and 48.8% higher than Ultra’s 155.3, making it the clear sweet spot. At 4K, Medium’s 119.5 FPS is 38.3% higher than High’s 86.4 and 45.6% higher than Ultra’s 82.1, while Low (170.5) is the only preset that pushes beyond 120 FPS.

For players prioritizing frame rate over visual fidelity, Low at 4K (170.5 FPS) or 1440p (300.9 FPS) is acceptable, but the Medium preset provides a balanced combination of graphical quality and performance that is well above the 60 FPS threshold. Ultra is only recommended for 1080p or 1440p displays, where the 248.3 and 155.3 FPS averages respectively remain high. The data shows that the RTX 4090 has enough headroom to run Medium at 4K comfortably, and the i5-12400F is not a limiting factor at this preset, making it the recommended choice for most users.

Measured FPS Breakdown

At 1920x1080, the average FPS ranges from 248.3 at Ultra to 348.6 at Low, with High at 262.5 and Medium at 308.1. The spread between Low and Ultra is 100.3 FPS, indicating that the CPU is the limiting factor at this resolution, as the GPU is capable of much higher frame rates. At 2560x1440, the averages are 155.3 (Ultra), 166.5 (High), 231 (Medium), and 300.9 (Low), with the gap between Low and Ultra widening to 145.6 FPS as the GPU workload increases. At 3840x2160, the averages are 82.1 (Ultra), 86.4 (High), 119.5 (Medium), and 170.5 (Low), with the gap between Low and Ultra growing to 88.4 FPS.

The data shows a consistent pattern: at every resolution, Medium provides a significant jump over High, while the difference between High and Ultra is relatively small. For example, at 1440p, the jump from High (166.5) to Medium (231) is a 38.7% increase, but the jump from Ultra (155.3) to High (166.5) is only a 7.2% increase. This suggests that the game’s Ultra preset includes effects that disproportionately tax the GPU without a corresponding visual benefit. Across all resolutions, the Low preset delivers the highest frame rates, but the Medium preset offers the best balance of performance and quality, with 4K Medium (119.5 FPS) being particularly impressive for a simulation game.