Pc Building Simulator

# How This Combo Ranks

The Intel Core Ultra 9 275HX paired with the NVIDIA GeForce RTX 5090 lands at rank 547 out of 3,002 tested combos in Pc Building Simulator. That places this configuration in the top 18.2% of all tested combinations, a strong showing for a mobile-class CPU paired with a flagship desktop GPU. The combo's percentile positioning is notable: the CPU sits at the 94th percentile among all processors, while the GPU ranks in the 92nd percentile among all graphics cards, meaning both components are near the top of their respective pools.

The ranking reflects an interesting dynamic. This is a laptop processor—the Core Ultra 9 275HX is a mobile part with a 55W TDP—driving a desktop-class RTX 5090 with a 575W TDP. The data shows that even with this mismatch, the combination produces frame rates that comfortably outpace the majority of tested systems. However, the rank also hints that the CPU may be holding back the GPU in certain scenarios, as the measured FPS at lower resolutions suggests a ceiling that the GPU alone wouldn't impose.

Compared to its nearest CPU rivals, the Core Ultra 9 275HX is essentially tied in average benchmark score. The Intel Xeon w5-3525 scores 0.3% higher, the AMD EPYC 4484PX is 0.5% ahead, and the AMD Ryzen Threadripper PRO 5955WX leads by 0.6%. The Intel Xeon 6515P trails by 0.7%. These deltas are trivial, indicating that the CPU's performance is right in line with high-end workstation and server chips despite its mobile pedigree.

On the GPU side, the RTX 5090's nearest rivals present a more mixed picture. The NVIDIA Tesla P100 PCIe 16 GB scores 0.3% higher, the Tesla P100 PCIe 12 GB is 0.6% ahead, and the AMD Radeon RX 6850M XT leads by 1.1%. Only the AMD Radeon Pro Vega 64X trails, by 1.4%. These are all older or different-class GPUs, which suggests the RTX 5090's benchmark score doesn't fully capture its gaming performance advantages in this specific title.

FAQ

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

A: At 1920x1080 with Low settings, the combo reaches 386 FPS average. With Medium settings it drops to 274 FPS, High delivers 193 FPS, and Ultra produces 184 FPS average.

Q: How does the CPU's multi-threaded performance compare to its single-threaded performance?

A: The Core Ultra 9 275HX scores 35,589 in Cinebench R23 multi-core and 2,204 in single-core. The multi-core result is about 16.1 times higher than the single-core score, which is consistent with its 24 cores and 24 threads.

Q: Does this combo maintain playable frame rates at 4K with Ultra settings?

A: Yes. At 3840x2160 with Ultra settings, the average FPS is 61, which is above the 60 FPS threshold commonly considered playable. High settings at 4K yields 64 FPS, Medium gives 90 FPS, and Low reaches 127 FPS.

Q: What is the GPU's memory bandwidth and how might it affect this game?

A: The RTX 5090 has 32 GB of GDDR7 memory on a 512-bit bus, delivering 1.79 TB/s bandwidth. For a simulation game like Pc Building Simulator, which manages many assets and system states, this high bandwidth supports consistent frame delivery across all tested settings.

Q: How does the combo's ranking translate to a percentile position?

A: With rank 547 out of 3,002 combos, the configuration sits at approximately the 82nd percentile of tested combos. This means roughly 18% of tested systems outperform it, while 82% are slower in this game.

Q: What are the measured minimum FPS values across resolutions?

A: Only the Medium settings rows include minimum FPS data. At 1920x1080 Medium, the minimum is 233 FPS; at 2560x1440 Medium, it's 147 FPS; and at 3840x2160 Medium, it's 77 FPS. Other settings rows did not record minimum values.

Resolution Scaling

The measured FPS data reveals a clear pattern of resolution scaling that points to a CPU bottleneck at lower resolutions and a GPU bottleneck at higher ones. At 1080p Low, the combo produces 386 FPS average. Moving to 1440p Low drops that to 244 FPS, a 36.8% reduction. At 4K Low, it falls to 127 FPS, another 47.9% drop from 1440p. These steep declines as resolution increases are characteristic of a system where the CPU can feed frames rapidly at low resolution, but the GPU becomes the limiting factor as pixel count grows.

The scaling at Ultra settings tells a different story. At 1080p Ultra, the average is 184 FPS. At 1440p Ultra, it drops to 116 FPS—a 37.0% reduction. At 4K Ultra, it's 61 FPS, a 47.4% drop from 1440p. The percentage drops are nearly identical to those at Low settings, which suggests that the RTX 5090 is the primary constraint across all settings, and the CPU's role is relatively consistent regardless of quality level.

Comparing Medium settings across resolutions provides the most complete picture since these are the only rows with min and max FPS. At 1080p Medium, the average is 274 FPS with a range of 233 to 315. At 1440p Medium, the average drops to 173 FPS (36.9% lower) with a range of 147 to 199. At 4K Medium, the average is 90 FPS (48.0% lower than 1440p) with a range of 77 to 104. The consistent ~37% drop from 1080p to 1440p and ~48% drop from 1440p to 4K indicates that the GPU's rendering load scales predictably with resolution.

The data suggests that the RTX 5090's 104.8 TFLOPS of FP32 compute and 1.79 TB/s memory bandwidth are the determining factors for high-resolution performance. Meanwhile, the Core Ultra 9 275HX's ability to sustain high frame rates at 1080p Low—386 FPS average—shows that its 24 cores and 5.40 GHz boost clock are more than sufficient to avoid becoming a bottleneck at lower resolutions. The CPU's Cinebench R23 multi-core score of 35,589 and single-core score of 2,204 support this interpretation, as the single-threaded performance is strong enough for the game's simulation logic.

Settings Recommendations

For 4K displays, the data supports Ultra settings as the optimal choice, despite the average FPS of 61 being the lowest among all 4K options. The difference between Ultra and High at 4K is just 3 FPS (61 vs 64), which is within the margin of measurement noise. Given that Ultra delivers a 60+ FPS average and the visual quality improvement over High is typically marginal in simulation games, Ultra is the clear recommendation for 4K users who prioritize image quality without sacrificing playability.

At 1440p, Medium settings offer the best balance. The average of 173 FPS is well above any refresh rate currently on the market, and the minimum of 147 FPS ensures no perceptible stutter even in demanding scenes. High settings at 1440p deliver 122 FPS average, which is still excellent, but the jump to Medium from High represents a 41.8% FPS increase (from 122 to 173) for what is usually a minor visual quality reduction in this genre. Ultra at 1440p yields 116 FPS, making it the least attractive option given that it's only 6 FPS faster than High in the other direction.

For 1080p, the recommendation depends on the refresh rate of the display. For 60 Hz monitors, Ultra at 184 FPS is overkill but harmless. For 144 Hz panels, High at 193 FPS provides plenty of headroom. For 240 Hz or higher refresh rate displays, Medium at 274 FPS is the sweet spot, as it maintains a minimum of 233 FPS that stays above the 240 Hz threshold most of the time. Low at 386 FPS is unnecessary unless chasing maximum frame rates for competitive play, which is uncommon in a simulation title.

The measured data also informs power and thermal considerations. The RTX 5090's 575W TDP and the CPU's 55W TDP mean the system draws significant power under load, but the FPS headroom at Medium settings across all resolutions suggests that users could cap frame rates to reduce power consumption without sacrificing smoothness. The GPU's 1x 16-pin power connector and suggested 950W PSU indicate that this is a high-power configuration, but the performance per frame at Medium settings is excellent.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates across all settings. Low settings produce an average of 386 FPS, which is the fastest measured result in the entire dataset. Medium settings average 274 FPS with a minimum of 233 and maximum of 315. High settings yield 193 FPS average, and Ultra settings produce 184 FPS average. The scaling from Low to Ultra at 1080p shows a 52.3% reduction in average FPS, which is substantial but leaves even the lowest setting well above any practical refresh rate limit.

At 2560x1440, the frame rates remain high but show the expected drop from 1080p. Low settings average 244 FPS, a 36.8% decrease from 1080p Low. Medium settings average 173 FPS with a minimum of 147 and maximum of 199, representing a 36.9% drop from 1080p Medium. High settings average 122 FPS, down 36.8% from 1080p High. Ultra settings average 116 FPS, down 37.0% from 1080p Ultra. The consistency of the percentage drops across settings at this resolution step is striking, indicating that the GPU's workload scaling is uniform regardless of quality preset.

At 3840x2160, the frame rates drop to the lowest values in the dataset. Low settings average 127 FPS, a 47.9% decrease from 1440p Low. Medium settings average 90 FPS with a minimum of 77 and maximum of 104, representing a 48.0% drop from 1440p Medium. High settings average 64 FPS, down 47.5% from 1440p High. Ultra settings average 61 FPS, down 47.4% from 1440p Ultra. The near-identical percentage drops at this resolution step confirm that the RTX 5090's rendering pipeline scales linearly with pixel count.

The minimum FPS data, available only for Medium settings, provides insight into frame time consistency. At 1080p Medium, the minimum of 233 FPS is 85.0% of the average. At 1440p Medium, the minimum of 147 FPS is 85.0% of the average. At 4K Medium, the minimum of 77 FPS is 85.6% of the average. This consistent ratio across resolutions suggests that frame pacing remains stable regardless of resolution, with no anomalous spikes in frame time variance.

CPU Role

The Intel Core Ultra 9 275HX is a 24-core, 24-thread processor based on the Arrow Lake architecture, built on TSMC's 3nm process node. Its base clock of 2.70 GHz boosts to 5.40 GHz, and it features 36 MB of shared L3 cache plus 3 MB of L2 cache per core. The 17,800 million transistors on a 243 mm² die make this a dense, efficient design. For a simulation game like Pc Building Simulator, which tracks numerous system components, temperatures, and power states, the CPU's multi-threaded throughput is critical.

Benchmark data shows the CPU excels in multi-threaded workloads. Cinebench R23 multi-core score of 35,589 and Geekbench multi-core of 20,795 demonstrate strong parallel performance. The PassMark multi-thread score of 55,759 and integer math score of 155,218 further confirm this. Single-threaded performance is also robust, with Cinebench R23 single-core at 2,204 and Geekbench single-core at 2,458. The PassMark single-thread score of 4,713 places it among the top processors for lightly-threaded tasks.

In Pc Building Simulator, the CPU's role appears to be secondary to the GPU at higher resolutions but becomes more significant at 1080p. The 386 FPS average at 1080p Low suggests the CPU can process game logic and physics fast enough to feed the GPU at extremely high frame rates. However, the consistent ~37% FPS drop from 1080p to 1440p across all settings indicates that the GPU's rendering workload dominates performance scaling, rather than the CPU becoming a limiting factor.

The CPU's 24 threads align well with simulation workloads that can parallelize system state calculations. The 55W TDP is remarkably low for a 24-core part at 5.40 GHz boost, which means the CPU is unlikely to thermally throttle in a way that would impact gaming performance. The 102.4 GB/s memory bandwidth from dual-channel DDR5 support is adequate for feeding the CPU's cores, though it's notably less than the GPU's 1.79 TB/s bandwidth. This difference reinforces that the GPU is the primary performance driver in this combination, while the CPU provides sufficient compute headroom to avoid bottlenecking.

The CPU's performance relative to its nearest rivals shows it's competitive with workstation-class processors. The 0.3-0.6% deltas against the Xeon w5-3525, EPYC 4484PX, and Threadripper PRO 5955WX are negligible in real-world gaming. The 0.7% advantage over the Xeon 6515P is similarly minor. These results indicate that the Core Ultra 9 275HX's mobile design doesn't compromise its ability to handle this game's CPU demands, even when paired with a flagship desktop GPU.