Pc Building Simulator

Pc Building Simulator with an AMD Ryzen 9 9900X and NVIDIA GeForce RTX 5090 is a top-tier pairing, ranking 3rd out of 1769 tested combinations. The data shows a machine that crushes this simulation title at every resolution, but the performance scaling reveals clear bottlenecks and sweet spots that are worth understanding before you tweak settings.

Resolution Scaling

The FPS drop from 1080p to 4K is dramatic and tells a clear story about which component is doing the heavy lifting. At 1080p Low settings, the combo produces 469.3 FPS, but at 4K Low it drops to 177.1 FPS—a 62% reduction in frame rate. This massive scaling factor indicates that at lower resolutions, the CPU is the limiting factor, as the GPU has headroom to spare.

Moving from 1440p to 4K shows a more moderate decline. At High settings, 1440p yields 170.6 FPS while 4K yields 90.2 FPS, a 47% drop. The gap narrows further when you look at the Ultra preset: 163.2 FPS at 1440p versus 85.4 FPS at 4K, a 48% reduction. This pattern suggests that the RTX 5090 is being increasingly taxed as pixel count rises, but the Ryzen 9 9900X is still keeping pace without becoming a severe constraint.

The most telling data point is the 1080p to 1440p transition at Low settings. Here, FPS only drops from 469.3 to 339.2, a 28% decrease. Compare that to the 1440p to 4K drop at Low, which falls from 339.2 to 177.1, a 48% decline. The steeper fall at higher resolutions confirms that the GPU becomes the primary bottleneck as resolution increases, while the CPU handles the lower-resolution workloads with relative ease.

CPU Role

The AMD Ryzen 9 9900X is a 12-core, 24-thread processor based on the Zen 5 architecture, codenamed Granite Ridge. It operates on the AMD Socket AM5 platform with a base clock of 4.40 GHz and a boost clock of 5.60 GHz. This is a 4 nm part from TSMC with 64 MB of shared L3 cache, and it supports DDR5 memory with a dual-channel bus and 89.6 GB/s bandwidth.

Benchmark results show this CPU is a multi-threaded monster. It scores 46,438 in Cinebench R23 multi-core and 19,503 in Cinebench R20 multi-core. Single-thread performance is equally strong, with a Cinebench R23 single-core score of 6,555 and a Geekbench single-core score of 3,341. In the 3DMark suite, it achieves 13,929 at max threads and 1,286 in single-thread tests.

The data positions this CPU in the 94th percentile against all CPUs, with an average benchmark score of 54,450. Compared to its nearest rivals, it trails the AMD Ryzen 9 9900X3D by just 0.4%, but it leads the Intel Core i7-14700F by 0.7%. The Intel Core Ultra 5 245K and 245KF are 1.5% and 1.8% ahead, respectively. For Pc Building Simulator, these margins are negligible—the CPU is not the limiting factor in most scenarios.

The passmark multi-thread score of 54,643 and physics score of 3,381 reinforce that this CPU has ample headroom for simulation workloads. Given that the game's 1080p Low preset hits 469.3 FPS, the 12 cores and 24 threads are clearly more than sufficient to feed the RTX 5090 at lower resolutions.

GPU Role

The NVIDIA GeForce RTX 5090 is a Blackwell 2.0 architecture GPU built on TSMC's 5 nm process, with a die size of 750 mm² and 92,200 million transistors. It features 32 GB of GDDR7 memory on a 512-bit bus, delivering 1.79 TB/s of bandwidth. The GPU has 21,760 shading units, 680 texture mapping units, and 176 ROPs, with a base clock of 2017 MHz and a boost clock of 2407 MHz.

This GPU's raw compute is staggering: 104.8 TFLOPS of FP32 performance and a pixel rate of 423.6 GPixel/s. In benchmark tests, it scores 14,411 in 3DMark Steel Nomad DX12 and 39,650 in Passmark G3D. It sits in the 94th percentile against all GPUs with an average benchmark score of 84,306, and it outperforms the NVIDIA GeForce RTX 5090 D by 0.1%, the RTX 5050 Mobile by 0.2%, and the AMD Radeon PRO W6600 by 1.3%. Only the NVIDIA CMP 40HX beats it, by 1.6%.

The 32 GB VRAM pool is overkill for Pc Building Simulator at any resolution, but it ensures the GPU never runs out of memory even at 4K Ultra. The 512-bit bus and 1.79 TB/s bandwidth mean texture streaming and memory-intensive operations are rarely constrained. The GPU's role is clear: it dominates at 1080p and 1440p, and it still delivers playable frame rates at 4K, though the scaling shows it is the component that dictates performance at higher resolutions.

Measured FPS Breakdown

At 1080p, the RTX 5090 and Ryzen 9 9900X produce exceptional frame rates across all settings. Low settings hit 469.3 FPS, Medium reaches 379.3 FPS, High achieves 270.7 FPS, and Ultra still manages 256.7 FPS. The difference between High and Ultra is only 14 FPS, suggesting diminishing returns from the highest preset.

At 1440p, the numbers remain high but show the GPU starting to work harder. Low yields 339.2 FPS, Medium drops to 242.7 FPS, High hits 170.6 FPS, and Ultra produces 163.2 FPS. The gap between High and Ultra narrows to just 7.4 FPS, indicating that the Ultra preset's extra demands are minimal at this resolution.

At 4K, the frame rates become more grounded but remain perfectly playable. Low delivers 177.1 FPS, Medium gives 128.7 FPS, High offers 90.2 FPS, and Ultra drops to 85.4 FPS. The step from High to Ultra costs only 4.8 FPS, which is within the margin of measurement error. Notably, 4K Low is still faster than 1080p Ultra on many lesser systems, which speaks to the sheer power of this combination.

The scaling from Low to Ultra at each resolution is consistent: at 1080p, Ultra is 45% slower than Low; at 1440p, Ultra is 52% slower; at 4K, Ultra is 52% slower. This pattern indicates that the Ultra preset imposes a similar relative penalty regardless of resolution.

FAQ

Q: Is the AMD Ryzen 9 9900X a bottleneck for the RTX 5090 in this game?

A: No, not at higher resolutions. At 1080p Low, the CPU allows 469.3 FPS, but at 4K Ultra, the frame rate drops to 85.4 FPS, showing the GPU is the limiting factor. The CPU's 12 cores and 24 threads with a 5.60 GHz boost clock provide ample headroom.

Q: How does this CPU compare to its nearest rivals?

A: The Ryzen 9 9900X has an average benchmark score of 54,450, which is 0.4% lower than the Ryzen 9 9900X3D and 0.7% higher than the Intel Core i7-14700F. It trails the Intel Core Ultra 5 245K by 1.5% and the 245KF by 1.8%.

Q: What is the best resolution for this combination?

A: 1440p High offers 170.6 FPS, which balances visual quality with a very high frame rate. If you prefer maximum detail, 1440p Ultra at 163.2 FPS is nearly identical and still well above 144 FPS.

Q: Is the 32 GB VRAM necessary for Pc Building Simulator?

A: No, but it guarantees no memory-related stutters. The GPU's 32 GB GDDR7 memory with 1.79 TB/s bandwidth is far more than this game requires, even at 4K Ultra.

Q: How does the GPU rank among all GPUs?

A: The RTX 5090 is in the 94th percentile with an average benchmark score of 84,306. It outperforms the RTX 5090 D by 0.1% and the AMD Radeon PRO W6600 by 1.3%, while the NVIDIA CMP 40HX leads by 1.6%.

Q: What frame rate can I expect at 4K Ultra?

A: The measured average is 85.4 FPS. This is playable on a 60 Hz display and borderline for 120 Hz panels. For higher refresh rates at 4K, dropping to High settings gives 90.2 FPS.

Settings Recommendations

For 1080p users, the Ultra preset at 256.7 FPS is the clear choice—there is no reason to compromise visual fidelity when the frame rate is this high. The drop from Ultra to High is only 14 FPS, so either setting works, but Ultra is free performance-wise.

At 1440p, the best experience per the measured rows is the Ultra preset at 163.2 FPS. The High preset at 170.6 FPS is only 7.4 FPS faster, which is imperceptible in practice. Given that Ultra typically includes higher texture quality and shadow detail, the 1440p Ultra setting is the sweet spot for this combination.

At 4K, the decision depends on your display's refresh rate. Ultra at 85.4 FPS is the best-looking option and is ideal for 60 Hz monitors. If you have a 120 Hz panel, High at 90.2 FPS gets you closer to that target, though neither setting will fully saturate a 120 Hz display. Medium at 128.7 FPS is the only 4K preset that exceeds 120 FPS, making it the choice for high-refresh 4K gaming, albeit with reduced visual quality.

The data suggests that the Ultra preset is the best overall experience for most users, as the performance penalty from High to Ultra is minimal at every resolution—never more than 22 FPS at 1080p and as little as 4.8 FPS at 4K. For those seeking the highest possible frame rates, Low settings at 1440p (339.2 FPS) or 4K (177.1 FPS) are options, but the visual sacrifice is substantial for a game that is not particularly demanding on GPU resources.