Pc Building Simulator

# CPU Role — cores, clocks, and how they relate to this game's results

The Intel Core i5-12400F is a 6-core, 12-thread processor from the Alder Lake generation, built on Intel's 10 nm process. Its base clock of 2.50 GHz and boost clock of 4.40 GHz position it as a mid-range desktop part, but the benchmark data shows this CPU is far from a bottleneck in Pc Building Simulator. The processor's L3 cache of 18 MB shared across six cores is modest by modern standards, yet the game's simulation workload appears to scale well with the available threads.

Looking at synthetic benchmarks, the i5-12400F achieves a Cinebench R23 multi-core score of 16518 and a single-core score of 2332. These numbers place it in the 77th percentile of all CPUs, with an average benchmark score of 19221. The nearest rivals in the database are telling: the Intel Core i7-8700K scores 19210 (0.1% behind), the Intel Core i5-1335U scores 19167 (0.3% behind), and the AMD Ryzen 5 7533HS scores 19364 (0.7% ahead). The AMD EPYC 7773X trails at 18979 (1.3% behind). What this reveals is that the i5-12400F sits in a tightly clustered performance band where a few percentage points separate it from older and newer designs alike.

In the context of Pc Building Simulator, the CPU's thread count matters. The game simulates component interactions, thermal behavior, and system stability — tasks that benefit from multiple threads. The 3DMark 16-thread score of 5895 and max-thread score of 5912 show near-linear scaling from 4 threads (3067) to 8 threads (4779), suggesting the architecture efficiently distributes work. However, the single-thread score of 909 in 3DMark indicates that individual core performance is not exceptional, which could matter if the game has any single-threaded bottlenecks. The measured FPS data suggests otherwise — at 1080p Low, the combo hits 350.8 FPS, which would be difficult to achieve if the CPU were severely limiting.

# How This Combo Ranks

The combination of the Intel Core i5-12400F and AMD Radeon RX 7900 XT ranks 359th out of 1769 tested combos in Pc Building Simulator. This places it in roughly the 80th percentile of all system configurations in the database. The ranking is notable because it reflects the entire system's performance in this specific game, not just raw component strength.

The GPU's percentile ranking is 82, while the CPU sits at 77. The combo rank of 359/1769 suggests that the pairing works harmoniously — the system lands in the upper quintile of all tested configurations. The GPU's average benchmark score of 38358 places it alongside the NVIDIA GeForce RTX 5080 Mobile (38349, 0% delta) and the NVIDIA GeForce RTX 4080 Mobile (38135, 0.6% behind). Interestingly, the NVIDIA CMP 70HX scores 38225 (0.3% behind), and the NVIDIA GeForce MX570 scores 38494 (0.4% ahead) — a strange grouping that highlights how synthetic averages can obscure real-world gaming differences.

In Pc Building Simulator specifically, the data shows this combo can handle the game at every tested resolution and settings combination. The 1440p Ultra result of 117.8 FPS is particularly telling — it demonstrates that the system has substantial headroom even at high settings. The rank of 359 suggests that while this is not an elite top-100 system, it outperforms the vast majority of configurations in the database. The question becomes whether the CPU or GPU contributes more to this strong showing, which the resolution scaling data can help answer.

# Resolution Scaling

The measured FPS across resolutions reveals how the system's performance scales with pixel count — and which component becomes the limiting factor. At 1080p Low, the combo achieves 350.8 FPS. Moving to 1440p Low drops this to 247.4 FPS, a decrease of 29.5%. At 4K Low, the frame rate falls to 127.8 FPS, which is 63.6% below the 1080p result. This dramatic scaling pattern is classic GPU-bound behavior — as resolution increases, the GPU must process more pixels, and frame rates drop proportionally.

The same pattern holds at Medium settings. From 1080p (280.1 FPS) to 1440p (174.5 FPS) is a 37.7% drop, and from 1440p to 4K (95 FPS) is another 45.6% reduction. At High settings, the progression is 196.9 FPS (1080p) → 126.2 FPS (1440p) → 66.7 FPS (4K). The Ultra preset shows 189.6 FPS at 1080p, 117.8 FPS at 1440p, and 64.9 FPS at 4K.

What's striking is the consistency of the scaling. In every settings tier, the drop from 1080p to 1440p is roughly 30-40%, and the drop from 1440p to 4K is roughly 45-50%. This uniform scaling strongly indicates that the GPU is the primary bottleneck at higher resolutions. If the CPU were limiting, we would expect to see diminishing returns as resolution increases — frame rates would plateau rather than continue falling. Instead, the data shows a smooth, predictable decline that tracks with pixel count, which is the signature of a GPU-bound scenario.

However, the 1080p results tell a different story. At Low settings, 350.8 FPS is extraordinarily high — the CPU's 6 cores are clearly capable of feeding the GPU at this level. The fact that High settings at 1080p (196.9 FPS) is only 11% lower than Medium (280.1 FPS) at the same resolution suggests the GPU is still doing most of the work. This combo appears well-balanced: the CPU handles the simulation logic without becoming a bottleneck, while the GPU scales predictably with resolution.

# Measured FPS Breakdown

1080p (1920x1080):

• Low: 350.8 FPS average
• Medium: 280.1 FPS average
• High: 196.9 FPS average
• Ultra: 189.6 FPS average

At 1080p, the system delivers exceptional performance across all settings. The gap between Low and Medium is 25.2%, while High to Ultra is a mere 3.7% difference. This suggests that the High and Ultra presets impose similar GPU workloads, with diminishing returns beyond High. The 350.8 FPS at Low is likely near the CPU's practical limit for this game, as simulation logic and draw calls become the limiting factor at such extreme frame rates.

1440p (2560x1440):

• Low: 247.4 FPS average
• Medium: 174.5 FPS average
• High: 126.2 FPS average
• Ultra: 117.8 FPS average

The 1440p results show a more pronounced separation between settings. Low to Medium drops 29.5%, Medium to High drops 27.7%, and High to Ultra drops 6.7%. The pattern mirrors 1080p but with lower absolute numbers — the GPU is now working harder, and the settings differences become more meaningful. At 1440p Ultra, 117.8 FPS is still well above the 60 FPS threshold for smooth gameplay, indicating this combo handles high-refresh 1440p monitors comfortably.

4K (3840x2160):

• Low: 127.8 FPS average
• Medium: 95 FPS average
• High: 66.7 FPS average
• Ultra: 64.9 FPS average

At 4K, the system remains playable even at Ultra settings, with 64.9 FPS just clearing the 60 FPS bar. The Low preset delivers 127.8 FPS, showing that this GPU has substantial headroom even at 4K when settings are reduced. The Medium result of 95 FPS is the sweet spot for 4K gaming — it provides a smooth experience while maintaining visual quality. The High and Ultra results are nearly identical (66.7 vs 64.9), suggesting that the Ultra preset's additional effects cost very little performance at this resolution.

# GPU Role

The AMD Radeon RX 7900 XT is a high-end GPU built on the RDNA 3.0 architecture, featuring the Navi 31 chip on TSMC's 5 nm process. It packs 57,700 million transistors across a 529 mm² die, with 5376 shading units, 336 TMUs, and 192 ROPs. The 20 GB of GDDR6 memory on a 320-bit bus provides 800.0 GB/s of bandwidth, which is substantial for high-resolution textures and simulation-heavy workloads.

Clock speeds range from a base of 1387 MHz to a boost of 2394 MHz, with a game clock of 2025 MHz. The memory runs at 2500 MHz (20 Gbps effective). These specifications translate to a pixel rate of 459.6 GPixel/s and a texture rate of 804.4 GTexel/s, with FP32 performance of 51.48 TFLOPS. The GPU's 84 ray-tracing cores support DirectX 12 Ultimate, though Pc Building Simulator likely doesn't leverage ray tracing extensively.

In synthetic benchmarks, the RX 7900 XT scores 29009 in Passmark G3D and 16828 in Passmark GPU Compute. Its 3DMark Steel Nomad DX12 score of 5623 reflects modern API performance. The GPU sits in the 82nd percentile of all GPUs, with an average benchmark score of 38358. The nearest rivals include the RTX 5080 Mobile (38349, 0% delta) and the RTX 4080 Mobile (38135, 0.6% behind) — both mobile parts that surprisingly match this desktop GPU in synthetic averages, though real-world gaming performance often differs.

The measured FPS data confirms the GPU's dominant role in this combo. The smooth resolution scaling discussed earlier is entirely consistent with a GPU-bound system. At 4K Ultra, the 64.9 FPS result shows the GPU is working near its limits for this title, while the 1080p Low result of 350.8 FPS demonstrates that the GPU can render frames far faster than the CPU can feed it at lower resolutions. The 20 GB VRAM capacity is more than sufficient for Pc Building Simulator, which is unlikely to exceed 8-10 GB even at 4K with high-resolution textures.

# Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and refresh rate.

For 1080p displays, the High preset at 196.9 FPS offers an excellent balance of visual quality and performance. The Ultra preset only drops to 189.6 FPS, a mere 3.7% penalty, so users with high-refresh monitors (144Hz or above) can comfortably use Ultra without sacrificing frame rates. The Low preset's 350.8 FPS is unnecessary for most displays and would only benefit competitive scenarios where frame rate matters more than visuals.

At 1440p, the Medium preset delivers 174.5 FPS, which exceeds most 144Hz monitors' capabilities. However, the High preset at 126.2 FPS still provides smooth gameplay on 120Hz displays. For users prioritizing visual fidelity on a 144Hz monitor, the Ultra preset at 117.8 FPS is viable — the difference between High and Ultra is only 6.7%, making Ultra the better choice for maximum quality without a significant performance hit.

For 4K displays, the Medium preset at 95 FPS is the clear recommendation. It provides a 42.4% improvement over High (66.7 FPS) while maintaining good visual quality. The Ultra preset at 64.9 FPS is playable but leaves little headroom for frame rate drops during complex scenes. The Low preset at 127.8 FPS would be suitable for 120Hz 4K monitors, but the visual compromise may not be worth the performance gain for a simulation game.

Overall, the data suggests that this combo performs best at Medium settings across all resolutions, with High or Ultra being reasonable choices on 1080p and 1440p displays. The GPU's 20 GB VRAM and high bandwidth ensure that texture quality can be maximized without memory-related stuttering.

# FAQ

Q: Is the Intel Core i5-12400F a bottleneck for the AMD Radeon RX 7900 XT in Pc Building Simulator?

A: The data indicates the CPU does not bottleneck the GPU. At 1080p Low, the combo achieves 350.8 FPS, and the smooth resolution scaling from 1080p to 4K shows the GPU becomes the limiting factor at higher resolutions. The CPU's 6 cores and 12 threads handle the game's simulation workload effectively.

Q: What is the best resolution and settings combination for this system?

A: For 4K, the Medium preset at 95 FPS offers the best balance. At 1440p, the Ultra preset at 117.8 FPS is recommended for maximum quality. At 1080p, the High preset at 196.9 FPS provides excellent performance with minimal visual compromise.

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

A: The combo ranks 359th out of 1769 tested configurations, placing it in the upper quintile. The GPU ranks in the 82nd percentile of all GPUs, while the CPU ranks in the 77th percentile, suggesting a well-matched pairing.

Q: Can this system handle 4K gaming at 60 FPS?

A: Yes. The 4K Ultra preset delivers 64.9 FPS, just above the 60 FPS threshold. At 4K High, the system achieves 66.7 FPS, providing a small margin of safety. The Medium preset at 95 FPS offers substantial headroom for smoother gameplay.

Q: How does the CPU compare to its closest rivals in synthetic benchmarks?

A: The i5-12400F scores 19221 on average, edging out the Intel Core i7-8700K (19210, 0.1% ahead) and the Intel Core i5-1335U (19167, 0.3% ahead). It trails the AMD Ryzen 5 7533HS (19364, 0.7% behind) by a small margin.

Q: Is the 20 GB VRAM on the RX 7900 XT necessary for this game?

A: Pc Building Simulator is unlikely to use more than 8-10 GB of VRAM even at 4K, so the 20 GB capacity provides significant headroom. The 800.0 GB/s memory bandwidth is more impactful for maintaining smooth frame rates at high resolutions and settings.