Pc Building Simulator

Intel Core i5-9400 pairs with the AMD Radeon RX 6750 XT in Pc Building Simulator, a simulation title from January 2019. The processor is a 6-core, 6-thread Coffee Lake part with a base clock of 2.90 GHz and a boost clock of 4.10 GHz, placing it at the 50th percentile among all CPUs. The GPU is an RDNA 2.0 part with 12 GB of GDDR6 memory on a 192-bit bus, reaching the 79th percentile among all GPUs. Their combined measured performance in this game shows a rank of 928 out of 1769 tested combos, indicating a mid-pack pairing. The data reveals a system that is strongly influenced by resolution and settings, with the CPU often becoming the limiting factor at lower resolutions.

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

The Intel Core i5-9400 brings 6 physical cores and 6 threads to the simulation. Its base clock of 2.90 GHz and boost clock of 4.10 GHz are modest by modern standards, and the processor lacks hyper-threading. In Cinebench R23, it scores 7969 in multi-core and 1125 in single-core, which aligns with its 50th percentile standing. This is a middle-of-the-road processor, and its nearest rivals in average benchmark score include the Intel Core i3-10305 (0.2% ahead), the Intel Core i3-1125G4 (0.2% ahead), and the Intel Xeon E-2134 (0.4% ahead). The Intel Core i7-8809G sits 0.6% behind.

For Pc Building Simulator, the CPU's role appears significant at lower settings. At 1080p Low, the combo produces 246.5 FPS, while at 1440p Low it drops to 176.4 FPS, and at 4K Low it falls to 93.5 FPS. The scaling from 1080p to 1440p Low is a 28.4% drop, and from 1440p to 4K Low is a 47.0% drop. The CPU's 6 threads may be fully utilized when the game's simulation logic is the bottleneck at low settings, but the data suggests that even at 1080p Low, the system does not reach exceptionally high frame rates that would indicate a pure CPU limit beyond 246 FPS.

The CPU's L3 cache totals 9 MB (shared), and it supports dual-channel DDR4 memory with a bandwidth of 42.7 GB/s. This memory bandwidth is likely sufficient for the game's needs. The processor's 65W TDP and PCIe Gen 3 with 16 lanes are standard, and it includes integrated UHD 630 graphics, though the discrete GPU handles rendering. The Cinebench R20 scores of 3346 multi-core and 472 single-core further confirm its mid-range position. In the context of this game, the CPU appears to be a capable partner but not a standout, as its single-thread performance in Cinebench R15 (113) and R23 (1125) shows it is not a high-frequency champion. The data implies that at lower resolutions, the CPU may be the first component to saturate, but the measured FPS at 1080p Low (246.5) suggests it still provides a smooth experience.

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

The AMD Radeon RX 6750 XT is built on the Navi 22 chip with RDNA 2.0 architecture and a 7 nm process. It has 2560 shading units, 160 TMUs, and 64 ROPs, with a base clock of 2150 MHz, a game clock of 2495 MHz, and a boost clock of 2600 MHz. The 12 GB of GDDR6 memory runs at 2250 MHz (18 Gbps effective) across a 192-bit bus, yielding a bandwidth of 432.0 GB/s. This memory capacity is generous for a simulation game, and the GPU's FP32 performance is 13.31 TFLOPS.

The GPU sits at the 79th percentile among all GPUs, and its nearest rivals in average benchmark score are the AMD Radeon RX 5600M (0.2% ahead), the NVIDIA GeForce RTX 5070 Ti Mobile (0.3% behind), the AMD Radeon 880M (0.9% behind), and the NVIDIA GeForce RTX 3080 (1.3% behind). The RX 6750 XT's Passmark G3D score is 20700, and its 3DMark Steel Nomad DX12 score is 2548.

In Pc Building Simulator, the GPU's influence becomes clearer as resolution increases. At 1080p Ultra, the combo achieves 132 FPS, while at 1440p Ultra it drops to 85.9 FPS, and at 4K Ultra it falls to 42.4 FPS. The drop from 1080p Ultra to 1440p Ultra is 34.9%, and from 1440p Ultra to 4K Ultra is 50.6%. These scaling patterns indicate that the GPU is being increasingly stressed at higher resolutions, especially with Ultra settings. The 12 GB VRAM is likely sufficient even at 4K Ultra, as the game does not appear to be memory-limited. The GPU's texture rate of 416.0 GTexel/s and pixel rate of 166.4 GPixel/s support its ability to handle high settings, but the measured FPS at 4K Ultra (42.4) shows that it struggles to maintain high frame rates at the most demanding configuration.

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

The measured FPS data reveals distinct scaling patterns across resolutions and settings. At Low settings, the FPS drops from 246.5 at 1080p to 176.4 at 1440p (a 28.4% decrease) and then to 93.5 at 4K (a 47.0% decrease from 1440p). This pattern suggests that at Low settings, the CPU is the primary limiter at 1080p and 1440p, as the drop from 1080p to 1440p is relatively modest, but the GPU begins to take over at 4K where the drop becomes more pronounced.

At Medium settings, the FPS drops from 198.3 at 1080p to 126.5 at 1440p (a 36.2% decrease) and then to 66.4 at 4K (a 47.5% decrease from 1440p). The larger drop from 1080p to 1440p compared to Low settings indicates that the GPU is becoming more involved. At High settings, the FPS drops from 142.2 at 1080p to 89.9 at 1440p (a 36.8% decrease) and then to 44.9 at 4K (a 50.1% decrease from 1440p). The pattern continues with a more even distribution of performance loss.

At Ultra settings, the FPS drops from 132 at 1080p to 85.9 at 1440p (a 34.9% decrease) and then to 42.4 at 4K (a 50.6% decrease from 1440p). The consistent ~50% drop from 1440p to 4K across all settings indicates that the GPU is the dominant limiter at 4K, as the resolution increase places a heavy load on the renderer. Conversely, the smaller drops from 1080p to 1440p at Low settings (28.4%) suggest that the CPU is more of a constraint at lower resolutions. The data implies that this combo is balanced at 1440p, where neither component is overwhelmingly saturated, but at 1080p the CPU holds back the GPU, and at 4K the GPU becomes the clear bottleneck.

FAQ

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

A: The highest average FPS at 1080p is 246.5, achieved with Low settings. At Ultra settings, it drops to 132.0 FPS.

Q: How does the CPU's benchmark score compare to its nearest rival?

A: The Intel Core i5-9400 has an average benchmark score of 2305. The Intel Core i3-10305 scores 2300, which is 0.2% ahead, while the Intel Core i7-8809G scores 2319, putting it 0.6% behind the i5-9400.

Q: What is the GPU's memory bandwidth and how does it affect 4K performance?

A: The GPU has a memory bandwidth of 432.0 GB/s from its 12 GB GDDR6 memory on a 192-bit bus. At 4K Ultra, the combo produces 42.4 FPS, indicating the bandwidth is not sufficient to maintain high frame rates at the most demanding settings.

Q: Does the combo perform better at 1440p Medium or 1080p Ultra?

A: At 1440p Medium, the average FPS is 126.5, while at 1080p Ultra it is 132.0. The 1080p Ultra setting provides a higher frame rate, but the 1440p Medium offers a higher resolution with a modest 4.2% FPS penalty.

Q: Where does this combo rank among all tested configurations?

A: The combo ranks 928 out of 1769 tested combos in Pc Building Simulator, placing it in the 52.5th percentile of all configurations.

Q: What is the FPS drop from 1080p to 4K at High settings?

A: At High settings, the FPS drops from 142.2 at 1080p to 44.9 at 4K, a decrease of 68.4%. This indicates a heavy GPU load at higher resolutions.

How This Combo Ranks

The Intel Core i5-9400 and AMD Radeon RX 6750 XT combination ranks 928 out of 1769 tested combos in Pc Building Simulator. This places it just below the midpoint of all configurations, which is notable given that the GPU sits at the 79th percentile among all GPUs while the CPU is at the 50th percentile. The data suggests that the CPU is holding the combo back from a higher ranking. The GPU's nearest rival, the NVIDIA GeForce RTX 3080, is only 1.3% ahead in average benchmark score, yet the combo's rank suggests that in this specific game, the pairing does not fully utilize the GPU's potential.

The rank of 928 out of 1769 means that roughly 52.5% of tested combos perform better. This is a mid-pack result, and the measured FPS data supports this: at 1080p Ultra, the combo delivers 132 FPS, which is respectable but not exceptional. The GPU's high percentile (79th) does not translate into a top-tier ranking in this game, likely because the CPU's 6 threads and modest clock speeds limit performance in simulation-heavy scenarios. The combo's measured FPS at 4K Ultra (42.4) is below the 60 FPS threshold, indicating that this pairing is not ideal for 4K gaming with maximum settings. Overall, the rank reflects a system that is balanced but not optimized for Pc Building Simulator's specific demands.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of performance across resolutions and settings. At 1080p, the combo achieves 246.5 FPS on Low, 198.3 FPS on Medium, 142.2 FPS on High, and 132.0 FPS on Ultra. This shows a 46.4% drop from Low to Ultra at 1080p. At 1440p, the FPS values are 176.4 (Low), 126.5 (Medium), 89.9 (High), and 85.9 (Ultra), representing a 51.3% drop from Low to Ultra. At 4K, the FPS values are 93.5 (Low), 66.4 (Medium), 44.9 (High), and 42.4 (Ultra), a 54.7% drop from Low to Ultra.

The scaling from 1080p to 4K at each setting shows consistent patterns: Low settings drop by 62.1% (246.5 to 93.5), Medium by 66.5% (198.3 to 66.4), High by 68.4% (142.2 to 44.9), and Ultra by 67.9% (132.0 to 42.4). These percentages indicate that the GPU becomes the bottleneck at higher resolutions, as the relative drop from 1080p to 4K is larger for higher settings. The data also shows that the gap between Low and Medium settings is significant at all resolutions, while the gap between High and Ultra is much smaller, suggesting diminishing returns from High to Ultra.

Settings Recommendations

Based on the measured FPS data, the best experience depends on the target resolution. At 1080p, the Ultra setting provides 132.0 FPS, which is above the 60 FPS threshold and offers the best visual quality. The High setting at 142.2 FPS is only 7.7% faster but may be preferable if visual fidelity is less important. For 1440p, the High setting at 89.9 FPS offers a good balance, as the Ultra setting at 85.9 FPS is only 4.4% slower. The Medium setting at 126.5 FPS is significantly faster but sacrifices visual quality.

At 4K, the data shows that the Low setting at 93.5 FPS is the only configuration that exceeds 60 FPS. The Medium setting at 66.4 FPS is also playable, but the High and Ultra settings at 44.9 FPS and 42.4 FPS, respectively, fall below the 60 FPS threshold. For 4K gaming, the Medium setting appears to be the best compromise, offering a playable frame rate while maintaining some visual fidelity. However, if the user prioritizes smoothness over visuals, the Low setting at 93.5 FPS is the recommended choice. The data indicates that this combo is best suited for 1080p Ultra or 1440p High, where it can deliver smooth frame rates without sacrificing too much visual quality.