Pc Building Simulator

Pc Building Simulator presents an unusual workload where the AMD Ryzen 5 8400F and AMD Radeon RX 9070 XT combination scales in a way that clearly separates CPU-bound from GPU-bound scenarios. The measured frames per second (FPS) data reveals a system that is exceptionally fast at lower resolutions, but begins to show its limits as pixel count climbs, making the choice of settings and resolution far more impactful than in typical action titles.

Resolution Scaling

The FPS drop from 1080p to 4K is steep and informative. At 1080p Low settings, the system produces 366.4 FPS, which falls to 231.9 FPS at 1440p and then plummets to 121.9 FPS at 4K. This represents a 66.7% reduction in FPS from 1080p to 4K at Low settings. The pattern is consistent across all settings presets: moving from 1080p to 1440p typically reduces frame rates by roughly 35-40%, while the jump to 4K nearly halves the 1440p number again. For instance, at High settings, the system delivers 182.3 FPS at 1080p, 112.8 FPS at 1440p, and 59.2 FPS at 4K.

This scaling behavior indicates that at 1080p, the CPU is the primary limiting factor. The Ryzen 5 8400F, with its 6 cores and 12 threads, is being pushed to its limit to feed the GPU enough data. The fact that 1080p Low yields 366.4 FPS but 1080p Ultra only drops to 174.9 FPS suggests that even at Ultra, the CPU is still heavily engaged. The picture changes at 4K, where the GPU becomes the bottleneck. The RX 9070 XT’s 16 GB of memory and 644.6 GB/s bandwidth are sufficient, but the sheer pixel count of 3840x2160 requires immense rasterization power. The 4K Ultra result of 57.3 FPS, compared to the 4K Low result of 121.9 FPS, shows that the GPU is the dominant constraint at this resolution. The data indicates that users targeting high refresh rates should stay at 1080p or 1440p, while 4K requires accepting a more moderate frame rate.

GPU Role

The AMD Radeon RX 9070 XT is the star of this configuration for this game. Built on the RDNA 4.0 architecture with a Navi 48 chip, it features 4096 shading units and 128 ROPs. Its boost clock of 2970 MHz and game clock of 2400 MHz provide substantial compute throughput. The GPU’s 16 GB of GDDR6 memory on a 256-bit bus delivers 644.6 GB/s of bandwidth. This memory configuration is more than adequate for Pc Building Simulator, which is not a texture-heavy title. The VRAM is unlikely to be a limiting factor at any tested setting.

The GPU’s benchmark scores position it in the 82nd percentile of all GPUs. Its average benchmark score of 39647 places it in close competition with the AMD Radeon Pro 575, which scores 39703 (a 0.1% difference), and the NVIDIA RTX A500 Mobile at 39568 (a 0.2% difference). The RX 9070 XT trails the AMD Radeon RX Vega 64 by 0.6%. In practical terms for Pc Building Simulator, the GPU’s raw power is evident in the 4K results. At 4K Ultra, it maintains 57.3 FPS, which is playable but not ideal for a smooth experience. At 4K Medium, it jumps to 83.6 FPS, showing that the GPU has headroom when settings are reduced. The transition from Medium to High at 4K costs 24.4 FPS (from 83.6 to 59.2), indicating that High settings introduce a significant load increase. The GPU’s performance is consistent with its 82nd percentile ranking, but the data suggests that its 16 GB VRAM is a future-proofing asset rather than a necessity for this specific simulation.

CPU Role

The AMD Ryzen 5 8400F is a Zen 4 architecture processor codenamed Phoenix, manufactured on a 4 nm process. It has 6 cores and 12 threads, with a base clock of 4.20 GHz and a boost clock of 4.70 GHz. Its 16 MB of shared L3 cache and 1 MB per-core L2 cache are modest by modern standards. The CPU’s benchmark scores show it performs in the 82nd percentile of all CPUs, with an average benchmark score of 25064. This places it virtually tied with the AMD Ryzen 7 2700X (25057, 0% delta) and AMD Ryzen AI 5 PRO 340 (25099, -0.1% delta). It is 0.3% ahead of the AMD Ryzen 5 7500F.

In Pc Building Simulator, the CPU’s role is most apparent at 1080p. The 366.4 FPS at 1080p Low is a result that is heavily reliant on the CPU’s ability to process game logic and draw calls. The Ryzen 5 8400F’s single-thread performance, evidenced by its 3dmark single-thread score of 951 and Cinebench R23 single-core score of 2943, is strong enough to drive high frame rates. However, the scaling from 1080p to 1440p at Low settings (366.4 to 231.9 FPS, a 36.7% drop) suggests that the CPU is saturating. At 4K, the CPU’s workload decreases relative to the GPU, and the frame rates become GPU-limited. The CPU’s 12 threads are more than sufficient for a simulation game, which typically doesn't scale perfectly across many cores. The data shows that the CPU is not a bottleneck at 4K, but it is the limiting factor at 1080p, where it prevents the GPU from reaching even higher frame rates.

FAQ

Q: What is the best resolution for this game with this hardware?

A: The data shows 1440p provides an excellent balance. At 1440p High, the system achieves 112.8 FPS, which is smooth, while 1080p High reaches 182.3 FPS. 4K is playable but requires lowering settings, with 4K High only hitting 59.2 FPS.

Q: Is the 16 GB VRAM of the RX 9070 XT useful for Pc Building Simulator?

A: The benchmark results do not indicate any VRAM limitations at any tested setting. The 16 GB capacity is a feature of the GPU, and the data suggests the game is not VRAM-bound. The GPU’s memory bandwidth and capacity are sufficient for all presets, from Low to Ultra.

Q: How does the Ryzen 5 8400F compare to its nearest rivals in terms of benchmark scores?

A: The Ryzen 5 8400F has an average benchmark score of 25064. This puts it 0% ahead of the AMD Ryzen 7 2700X (25057), 0.1% ahead of the AMD Ryzen AI 5 PRO 340 (25099), and 0.3% ahead of the AMD Ryzen 5 7500F (24993). It is effectively tied with these processors.

Q: Why is the FPS difference between 1080p and 4K so large?

A: At 1080p, the CPU is the limiting factor, producing up to 366.4 FPS on Low. At 4K, the GPU becomes the bottleneck. The rendering load at 3840x2160 is substantially higher, reducing frame rates to 121.9 FPS on Low. The difference in pixel count drives the GPU to its limits.

Q: Are the Ultra settings worth using over High settings?

A: The data shows a significant cost. At 1440p, Ultra delivers 108.2 FPS compared to 112.8 FPS on High. At 4K, the difference is more pronounced: Ultra yields 57.3 FPS while High yields 59.2 FPS. The visual improvement may not justify the frame rate drop, especially at 4K.

Q: What is the GPU’s performance percentile?

A: The RX 9070 XT is in the 82nd percentile of all GPUs, with an average benchmark score of 39647. This places it near the AMD Radeon Pro 575 (39703) and NVIDIA RTX A500 Mobile (39568).

Measured FPS Breakdown

The measured FPS data provides a complete picture of performance across resolutions and settings.

At 1920x1080, the system is exceptionally fast. Low settings produce 366.4 FPS, Medium yields 258 FPS, High delivers 182.3 FPS, and Ultra achieves 174.9 FPS. The gap between High and Ultra is just 7.4 FPS, suggesting diminishing returns at the highest preset. The CPU is the primary limiter here, as the frame rates are high enough to stress any processor.

At 2560x1440, the results are still smooth. Low settings hit 231.9 FPS, Medium reaches 162 FPS, High delivers 112.8 FPS, and Ultra achieves 108.2 FPS. The scaling from 1080p to 1440p shows a consistent drop of around 35-40% across all presets. This is the sweet spot for high refresh rate monitors, with all settings producing playable frame rates.

At 3840x2160, the GPU takes over as the limiting factor. Low settings produce 121.9 FPS, Medium yields 83.6 FPS, High delivers 59.2 FPS, and Ultra achieves 57.3 FPS. The difference between High and Ultra is minimal (1.9 FPS), indicating that Ultra’s extra effects are not well optimized for this GPU. For a 60 FPS target, High settings are borderline, while Medium provides a comfortable margin.

The data shows a clear hierarchy: 1080p is CPU-bound, 4K is GPU-bound, and 1440p is a balanced workload. The combo rank of 457 out of 1769 combinations places this system in the upper quartile of configurations tested for this game.

Settings Recommendations

For a 60 Hz 4K display, the data suggests using Medium settings at 3840x2160. The 83.6 FPS average provides a solid margin above 60 FPS, ensuring smooth gameplay without drops. High settings at 4K, at 59.2 FPS, are too close to the 60 FPS threshold and risk stuttering in busy scenes. Ultra at 4K, at 57.3 FPS, is not recommended for a locked 60 FPS experience.

For a 1440p monitor with a 144 Hz refresh rate, High settings are the best choice. The 112.8 FPS average is close to the refresh rate, and the visual quality is significantly better than Medium. Ultra at 1440p offers 108.2 FPS, which is only 4.6 FPS less, so it is also a viable option if visual fidelity is a priority. Low settings at 1440p are unnecessary, as the 231.9 FPS far exceeds any practical refresh rate.

For a 1080p monitor, the system is overpowered. Ultra settings at 174.9 FPS are recommended, as the performance is still high enough for any 144 Hz display. High settings at 182.3 FPS provide a marginal 7.4 FPS improvement over Ultra, but the visual downgrade is not worth it. The CPU is the bottleneck here, so reducing settings below Ultra yields no meaningful benefit for most users. The RX 9070 XT’s 16 GB VRAM and fast clocks are more than enough for this title at 1080p. The data indicates that the optimal experience depends entirely on the target resolution and refresh rate, with this hardware capable of handling all but the most demanding 4K Ultra scenarios.