Pc Building Simulator

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

The AMD Ryzen 9 5900X is a 12-core, 24-thread processor built on the Zen 3 architecture, with a base clock of 3.70 GHz and a boost clock of 4.80 GHz. This is a high-thread-count desktop part, and its benchmark results reflect a CPU that is exceptionally strong in multi-threaded workloads. In Cinebench R23, it scores 33,150 in multi-core and 4,680 in single-core, while in Geekbench it reaches 11,877 multi-core and 2,202 single-core. The data shows a processor that sits at the 90th percentile among all CPUs, with an average benchmark score of 39,453.

For a simulation game like Pc Building Simulator, the CPU's role is often more pronounced than in fast-paced action titles. The game simulates system assembly, component compatibility, and boot sequences, which involve significant logic and physics calculations. The 5900X's 24 threads provide ample headroom for such tasks. Looking at the nearest rivals, the AMD EPYC 4245P scores 39,383, which is only 0.2% behind the 5900X, while the Intel Core i7-13700F trails by 0.9% with a score of 39,095. This places the 5900X in a tightly contested band where performance differences are minimal.

The single-thread score of 4,680 in Cinebench R23 is also relevant. While the game may not be heavily single-thread bound, the boost clock of 4.80 GHz ensures that lighter simulation tasks, such as UI responsiveness or part selection logic, remain fluid. The 64 MB of L3 cache further helps by keeping frequently accessed data close to the cores. In the measured FPS data, the CPU's contribution is visible at lower resolutions where the GPU is less stressed. At 1080p Low, the combo achieves 346.5 FPS, which is a strong indicator that the 5900X is not a bottleneck in this scenario. The processor's 105 W TDP and DDR4 dual-channel memory support round out a configuration that is well-matched to a high-end GPU.

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

The NVIDIA GeForce RTX 5080 is a Blackwell 2.0 architecture GPU with 10,752 shading units, 84 RT cores, and 336 tensor cores. It operates at a base clock of 2295 MHz and a boost clock of 2617 MHz, with 16 GB of GDDR7 memory on a 256-bit bus, delivering 960.0 GB/s of bandwidth. The GPU's benchmark scores are substantial: it reaches 8,637 in 3DMark Steel Nomad DX12, 264,461 in Geekbench OpenCL, and 257,942 in Geekbench Vulkan. Its average benchmark score is 59,188, placing it at the 89th percentile among all GPUs.

In Pc Building Simulator, the GPU's role is primarily visual — rendering the 3D workshop environment, component models, and case interiors. The RTX 5080's 16 GB VRAM is more than sufficient for the textures and geometry used in this simulation, even at high resolutions. The boost clock of 2617 MHz ensures that the rendering pipeline is fed quickly, which is evident in the measured FPS. At 1440p High, the combo produces 157.2 FPS, and at 4K High it maintains 81.9 FPS. These numbers indicate that the GPU is the primary driver of performance at higher settings, given the CPU's strong showing at lower loads.

Comparing to nearest rivals, the Intel Arc A570M scores 58,239, which is 1.6% behind the RTX 5080, while the AMD Radeon Pro W5500X trails by 2.6% with a score of 57,661. The RTX 5080 leads this group, though the deltas are modest. The GPU's 360 W TDP and PCIe 5.0 x16 interface are consistent with a high-performance part, but the data suggests that in this game, the RTX 5080 is not fully utilized until settings and resolution are pushed higher. The pixel rate of 293.1 GPixel/s and texture rate of 879.3 GTexel/s provide the raw throughput needed for the detailed component models that are central to the game's appeal.

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

The measured FPS data shows a clear pattern of scaling as resolution increases, which reveals the shifting balance between CPU and GPU load. At 1080p Low, the combo achieves 346.5 FPS. Moving to 1440p Low, it drops to 301.2 FPS, a reduction of 45.3 FPS or roughly 13%. At 4K Low, the average is 163.1 FPS, which is a substantial 53% drop from 1440p. This scaling indicates that at Low settings, the game is still partially CPU-bound at lower resolutions, but the GPU begins to take over as pixel count rises.

For High settings, the pattern is steeper. At 1080p High, the combo produces 249 FPS. At 1440p High, it falls to 157.2 FPS, a 37% decrease. At 4K High, it drops further to 81.9 FPS, which is a 48% reduction from 1440p. This shows that as visual fidelity increases, the RTX 5080 becomes the limiting factor. The Ultra preset follows a similar trajectory: 1080p Ultra yields 235.6 FPS, 1440p Ultra drops to 149.2 FPS, and 4K Ultra falls to 79.5 FPS. The gap between High and Ultra at 4K is only 2.4 FPS, suggesting that the Ultra preset adds complexity that the GPU cannot fully handle at this resolution.

The data supports the interpretation that the Ryzen 9 5900X is sufficient to keep the RTX 5080 fed at 1080p and 1440p, even at higher settings. At 4K, the GPU's workload dominates, and the FPS drops are primarily due to rendering demands rather than CPU limitations. The fact that 4K Low (163.1 FPS) is higher than 1080p Ultra (235.6 FPS) in absolute terms is notable — it shows that resolution scaling has a smaller impact than settings scaling within this range. Overall, the limiting component shifts from the CPU at low settings and resolutions to the GPU at high settings and 4K.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS data, the optimal settings depend on the target refresh rate and resolution. At 1080p, all presets exceed 235 FPS, so even Ultra is playable on high-refresh monitors. The gap between Medium (305.2 FPS) and Ultra (235.6 FPS) is 69.6 FPS, which may not be perceptible on a 144Hz display, but Ultra provides the best visual quality without dropping below 200 FPS. For 1440p, the High preset at 157.2 FPS is a strong choice for 144Hz displays, while Ultra at 149.2 FPS is only 8 FPS lower, making it a viable alternative if the monitor can handle it. Medium at 222.8 FPS offers a large margin for higher refresh rates like 240Hz.

At 4K, the situation is more constrained. The High preset delivers 81.9 FPS, which is suitable for 60Hz displays but not for high-refresh gaming. Medium at 115.4 FPS is a better option for those wanting a smoother experience, while Low at 163.1 FPS is the only preset that approaches 144Hz territory. Ultra at 79.5 FPS is the lowest measured value and offers diminishing returns over High. Given the data, the recommended preset for a balanced experience is High at 1440p — it provides 157.2 FPS, which is well above the 60 FPS threshold and close to 144Hz, while maintaining good visual fidelity. For 4K users, Medium at 115.4 FPS is the sweet spot, as it offers a substantial improvement over High without the performance penalty of Ultra.

FAQ

Q: What is the maximum average FPS this combo achieves at 1080p?

A: The highest measured average FPS at 1080p is 346.5, achieved with the Low preset. Medium follows at 305.2 FPS, High at 249 FPS, and Ultra at 235.6 FPS.

Q: How does the CPU compare to its nearest rival in average benchmark score?

A: The AMD Ryzen 9 5900X has an average benchmark score of 39,453. Its closest rival, the AMD EPYC 4245P, scores 39,383, which is 0.2% lower. The Intel Core i7-13700F is 0.9% behind with 39,095.

Q: What is the FPS difference between High and Ultra settings at 4K?

A: At 4K, the High preset averages 81.9 FPS, while Ultra averages 79.5 FPS. The difference is only 2.4 FPS, making Ultra a marginal upgrade over High at this resolution.

Q: Is the GPU or CPU the limiting factor at 1440p Medium?

A: At 1440p Medium, the combo achieves 222.8 FPS. Given that the CPU scores in the 90th percentile and the GPU in the 89th percentile, the data suggests that the GPU is the primary limiter at this resolution, as FPS drops are more pronounced when moving from 1080p to 1440p than when comparing CPU-bound scenarios.

Q: What is the GPU's percentile ranking among all GPUs?

A: The NVIDIA GeForce RTX 5080 ranks at the 89th percentile among all GPUs, with an average benchmark score of 59,188. Its nearest rival, the Intel Arc A570M, is 1.6% behind.

Q: What is the combo's overall rank in the game?

A: This CPU and GPU combination ranks 93rd out of 1,769 tested combos in Pc Building Simulator, placing it in the top 5.3% of all configurations.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data is organized by resolution and settings, with all values representing average FPS. No minimum or maximum FPS was recorded in the dataset.

1920x1080 (1080p):

• Low: 346.5 FPS
• Medium: 305.2 FPS
• High: 249 FPS
• Ultra: 235.6 FPS

At 1080p, the scaling from Low to Ultra is a drop of 110.9 FPS, which is a 32% reduction. The largest single-step decrease is from Medium to High, which loses 56.2 FPS.

2560x1440 (1440p):

• Low: 301.2 FPS
• Medium: 222.8 FPS
• High: 157.2 FPS
• Ultra: 149.2 FPS

At 1440p, the drop from Low to Ultra is 152 FPS, a 50% reduction. The most significant step is from Medium to High, which loses 65.6 FPS, indicating a steep cost for the High preset's visual improvements.

3840x2160 (4K):

• Low: 163.1 FPS
• Medium: 115.4 FPS
• High: 81.9 FPS
• Ultra: 79.5 FPS

At 4K, the scaling from Low to Ultra is a drop of 83.6 FPS, a 51% reduction. The transition from Medium to High loses 33.5 FPS, while High to Ultra loses only 2.4 FPS, showing diminishing returns at the highest preset.

Across all resolutions, the Low preset consistently leads, with the gap between Low and Ultra widening from 110.9 FPS at 1080p to 152 FPS at 1440p, then narrowing to 83.6 FPS at 4K. This pattern confirms that the GPU becomes the bottleneck at higher resolutions, as the absolute FPS values converge. The data also shows that 1080p Medium (305.2 FPS) outperforms 1440p Low (301.2 FPS) by 4 FPS, and 1440p Low outperforms 4K Low by 138.1 FPS, underscoring the significant cost of resolution scaling.