Pc Building Simulator

The AMD Ryzen 5 8400F and AMD Radeon RX 7900 XT combination delivers a high-refresh-rate experience in Pc Building Simulator, with the data showing that the GPU is the primary driver of performance. The pairing of a 6-core Zen 4 processor with a high-end RDNA 3 graphics card produces frame rates that scale predictably with resolution and settings, though the CPU’s capabilities are sufficient to avoid bottlenecking in this simulation title.

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

The AMD Ryzen 5 8400F is a 6-core, 12-thread processor based on the Zen 4 architecture, with a base clock of 4.20 GHz and a boost clock of 4.70 GHz. It operates on the AMD Socket AM5 platform and supports DDR5 memory in a dual-channel configuration, providing a memory bandwidth of 83.2 GB/s. The processor’s 16 MB of shared L3 cache and 1 MB per-core L2 cache are relevant for a simulation game like Pc Building Simulator, which often involves managing numerous system components and calculations.

Benchmark results place this CPU in the 82nd percentile among all processors, with an average benchmark score of 25064. In synthetic tests, the chip scores 20851 in Cinebench R23 multi-core and 2943 in single-core, while 3DMark results show a max-thread score of 6165 and a single-thread score of 951. These numbers indicate that the Ryzen 5 8400F is a capable mid-range processor, though it is not at the top of the performance hierarchy. Its nearest rival, the AMD Ryzen 7 2700X, has a nearly identical average score of 25057, representing a 0% delta, while the AMD Ryzen AI 5 PRO 340 is just 0.1% behind, and the AMD EPYC 9474F is 0.2% lower. The AMD Ryzen 5 7500F is 0.3% ahead.

In the context of Pc Building Simulator, the CPU’s role appears secondary to the GPU. At 1080p with Ultra settings, the combo achieves 191 FPS, while dropping to Low settings yields 373.4 FPS. The fact that the frame rate more than doubles when settings are lowered suggests that the CPU is not the limiting factor in this title, as the workload scales heavily with graphical settings rather than CPU-bound simulation logic. The 12 threads and boost clock of 4.70 GHz are sufficient to keep up with the GPU’s output, particularly at higher resolutions where the GPU workload increases.

GPU Role — VRAM, clocks, and how they relate to this game's results

The AMD Radeon RX 7900 XT is a high-end graphics card based on the RDNA 3.0 architecture, featuring the Navi 31 chip. It comes with 20 GB of GDDR6 memory on a 320-bit bus, delivering a bandwidth of 800.0 GB/s. The GPU has a base clock of 1387 MHz, a game clock of 2025 MHz, and a boost clock of 2394 MHz, with memory running at 2500 MHz (20 Gbps effective). This hardware configuration is clearly designed for demanding workloads, and the benchmark results for Pc Building Simulator reflect that.

The GPU sits in the 82nd percentile among all graphics cards, with an average benchmark score of 38358. In 3DMark Steel Nomad DX12, it scores 5623, and in Geekbench OpenCL and Vulkan tests it achieves 169834 and 160119, respectively. Passmark G3D scores 29009, with a GPU compute score of 16828. The nearest rival is the NVIDIA GeForce RTX 5080 Mobile, which has a nearly identical average score of 38349 (0% delta), while the NVIDIA CMP 70HX is 0.3% behind, the NVIDIA GeForce MX570 is 0.4% ahead, and the NVIDIA GeForce RTX 4080 Mobile is 0.6% lower.

In Pc Building Simulator, the GPU’s dominance is evident in the frame rates. At 4K Ultra, the card delivers 63.8 FPS, which is just above the 60 FPS threshold for smooth gameplay. Dropping to High settings at 4K yields 64.4 FPS, while Medium produces 90.8 FPS and Low jumps to 131.9 FPS. This scaling pattern shows that the RX 7900 XT has substantial headroom, and the 20 GB VRAM capacity is more than ample for the textures and assets in this simulation title, even at 4K resolution.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured frame rates across resolutions reveal a clear pattern of GPU-bound scaling. At 1080p with Low settings, the combo achieves 373.4 FPS, which drops to 251.5 FPS at 1440p and 131.9 FPS at 4K. This represents a 65% reduction from 1080p to 4K at Low settings, indicating that the GPU is the primary bottleneck as resolution increases. Similarly, at High settings, the frame rate falls from 198.6 FPS at 1080p to 126 FPS at 1440p and 64.4 FPS at 4K, a 68% drop.

The pattern is consistent across all settings. At Medium, 1080p produces 280.7 FPS, 1440p produces 176.5 FPS, and 4K produces 90.8 FPS. At Ultra, the numbers are 191 FPS, 119.3 FPS, and 63.8 FPS, respectively. The fact that the frame rate roughly halves when moving from 1080p to 4K at every setting level suggests that the GPU is doing the heavy lifting, and the CPU is not introducing a significant bottleneck. If the CPU were the limiting factor, we would expect to see similar frame rates across resolutions, particularly at lower settings where the GPU workload is reduced.

The data also shows that setting changes have a larger impact at lower resolutions. At 1080p, moving from Low to Ultra reduces the FPS from 373.4 to 191, a 49% drop. At 4K, the same setting change reduces FPS from 131.9 to 63.8, a 52% drop. This indicates that the GPU is consistently the limiting component, and the Ryzen 5 8400F is able to feed the RX 7900 XT adequately across the resolution spectrum.

FAQ

Q: What is the maximum average FPS achievable with this combo in Pc Building Simulator?

A: The highest average FPS recorded is 373.4 at 1920x1080 with Low settings.

Q: Can this combo maintain 60 FPS at 4K with high settings?

A: Yes, at 3840x2160 with High settings, the average FPS is 64.4, which is above 60 FPS. At Ultra settings, it drops slightly to 63.8 FPS.

Q: How does the CPU compare to its nearest rival, the AMD Ryzen 7 2700X?

A: The AMD Ryzen 5 8400F has an average benchmark score of 25064, while the AMD Ryzen 7 2700X scores 25057, representing a 0% delta. They are effectively equal in performance.

Q: What is the GPU’s percentile ranking among all graphics cards?

A: The AMD Radeon RX 7900 XT is in the 82nd percentile among all GPUs, with an average benchmark score of 38358.

Q: How much VRAM does the RX 7900 XT have, and is it sufficient for this game?

A: The GPU has 20 GB of GDDR6 memory. This is more than sufficient for Pc Building Simulator, as the game’s maximum VRAM usage is well below this capacity even at 4K Ultra settings.

Q: Is the CPU or GPU the limiting factor in this game?

A: The data indicates the GPU is the limiting factor. Frame rates scale significantly with resolution and settings, while the CPU’s performance remains consistent, suggesting it is not a bottleneck.

How This Combo Ranks

In the database of tested combinations for Pc Building Simulator, this specific pairing of the AMD Ryzen 5 8400F and AMD Radeon RX 7900 XT holds a rank of 346 out of 1769 tested combos. This places it in the upper 20% of all tested configurations, which is consistent with the high frame rates observed in the benchmark data. The rank reflects the GPU’s strong performance, as the RX 7900 XT is in the 82nd percentile among all graphics cards, while the CPU’s 82nd percentile ranking also contributes positively to the overall result.

The combo’s rank of 346 suggests that there are many combinations that achieve higher frame rates in this game, likely featuring even more powerful GPUs or CPUs. However, the data shows that this pairing delivers excellent 1080p and 1440p performance, with 4K Ultra just barely exceeding 60 FPS. The combination of a 6-core Zen 4 CPU and a high-end RDNA 3 GPU provides a balanced platform for Pc Building Simulator, where the GPU workload dominates and the CPU’s 12 threads are sufficient to avoid holding back the graphics card. The rank of 346 out of 1769 is a strong showing, indicating that this combo is well-suited for the game’s demands.