Microsoft Flight Simulator

Microsoft Flight Simulator is a demanding title that stresses both processor and graphics hardware, and the combination of the Intel Core Ultra 5 135H with the NVIDIA GeForce RTX 5090 produces a fascinating dataset. The benchmark results clearly show that this pairing is capable of delivering exceptionally high frame rates at 1080p, but the experience becomes more nuanced as resolution increases, revealing a system where the GPU is the primary bottleneck at 4K. The data indicates that this combo ranks in the 80th percentile of all tested configurations, which is a strong result, but the performance scaling between settings and resolutions tells a more detailed story about where this hardware excels and where its limits are exposed.

Resolution Scaling

The measured frame rates demonstrate a classic pattern of GPU-bound scaling as resolution increases, but the magnitude of the performance drop is particularly steep in this title. At 1080p with Low settings, the combo achieves an average of 173 FPS, which drops to 139 FPS at 1440p and further to 103 FPS at 4K. This represents a 40% reduction in frame rate when moving from 1080p to 4K at Low settings, which is a significant hit that points to the RTX 5090’s raw compute power being increasingly taxed by the pixel count. The scaling is less severe at High settings, where the average goes from 101 FPS at 1080p to 82 FPS at 1440p and finally 60 FPS at 4K, a 41% total drop, suggesting that the additional graphical complexity at High settings does not change the fundamental relationship between resolution and GPU load.

The most telling data point for understanding the limiting component comes from the Medium settings row, which is the only one with complete min and max FPS data. At 1080p Medium, the average is 135 FPS with a minimum of 114 FPS and a maximum of 155 FPS. Moving to 1440p Medium, the average drops to 109 FPS with a range of 92 to 125 FPS, and at 4K Medium, the average falls to 80 FPS with a range of 68 to 92 FPS. The fact that the minimum frame rates at each resolution stay proportionally close to the averages indicates that the system is not experiencing sudden stutters or CPU-related hitches, but rather a smooth, consistent degradation in performance as the GPU becomes more saturated. This smooth scaling is a hallmark of a system where the GPU is the bottleneck, as the CPU is able to feed the graphics card without introducing frame time spikes.

The difference between 1080p and 4K at Ultra settings is also revealing, with the average dropping from 96 FPS to 57 FPS, a 41% decrease. This near-constant percentage drop across all settings presets strongly suggests that the limiting component at higher resolutions is the GPU’s rendering throughput, not the CPU’s processing power. If the CPU were the bottleneck, we would expect to see the frame rate plateau or even increase slightly at higher resolutions, as the GPU would have more time to complete its work while waiting for the CPU to deliver draw calls. Instead, the data shows a linear relationship between resolution and frame rate, confirming that the RTX 5090 is the performance ceiling for this pairing in Microsoft Flight Simulator.

GPU Role

The NVIDIA GeForce RTX 5090 is a monster of a graphics card, and the benchmark data confirms that it is the dominant component in this combo for most scenarios. With 32 GB of GDDR7 memory on a 512-bit bus, the card has a memory bandwidth of 1.79 TB/s, which is more than sufficient for even the most texture-heavy flight simulation scenarios. The card’s 21,760 shading units and 170 RT cores provide substantial compute power, and its boost clock of 2407 MHz ensures that it can sustain high performance under load. The 104.8 TFLOPS of FP32 performance is a staggering figure, and it is this raw compute capability that drives the high frame rates seen at 1080p and 1440p.

The GPU’s role becomes even more critical when considering the memory configuration. Flight simulators are notorious for loading large amounts of terrain and aircraft data into VRAM, and the 32 GB frame buffer on the RTX 5090 is a massive advantage. While the fact pack does not include VRAM usage metrics, the fact that the card can maintain stable average frame rates at 4K Ultra without any reported minimum FPS drops below 57 FPS suggests that it is not running out of memory. The GDDR7 memory at 28 Gbps effective speed provides the bandwidth needed to stream high-resolution textures without causing stutters, which is a common issue with lesser cards in this game.

The RTX 5090’s performance percentile of 92 indicates that it is in the top 8% of all GPUs tested, and its average benchmark score of 79,842 demonstrates its overall capability. In the context of this game, the GPU’s 3DMark Steel Nomad score of 18,355 and Geekbench Vulkan score of 376,728 are strong indicators of its ability to handle complex 3D workloads. The data shows that the GPU is the clear performance driver, with the CPU playing a supporting role that becomes more relevant only at lower resolutions where the GPU is not fully saturated.

How This Combo Ranks

Among all tested combinations in the database, this pairing of the Intel Core Ultra 5 135H and NVIDIA GeForce RTX 5090 ranks 586th out of 2,996 combos, placing it in the 80th percentile of all configurations. This is a strong ranking that reflects the high-end nature of the GPU, but it is not a top-tier result, which indicates that the CPU is holding back the overall potential of the system. The combo’s rank is particularly interesting when considering the individual component benchmarks: the CPU ranks in the 81st percentile of all processors, while the GPU ranks in the 92nd percentile of all graphics cards. The discrepancy between these two percentiles suggests that the CPU is the weaker link in this pairing, and the combo’s overall rank of 586 reflects this imbalance.

The combo ranking is especially notable when compared to the CPU’s nearest rivals. The Intel Core Ultra 5 135H has an average benchmark score of 29,093, which is nearly identical to the AMD Ryzen 7 5800X (29,123, a -0.1% delta), the Intel Xeon Phi 7210 (29,245, -0.5%), the AMD Ryzen 5 5600XT (28,940, +0.5%), and the Intel Core i5-13500HX (29,270, -0.6%). This means that the CPU is performing exactly as expected for its class, but it is not providing any extra headroom that would allow the RTX 5090 to reach its full potential. In a game like Microsoft Flight Simulator, which is known to be CPU-intensive at lower resolutions, this could explain why the combo does not rank higher despite having one of the most powerful GPUs available.

The fact that the combo ranks in the 80th percentile, rather than higher, suggests that many other configurations with more powerful CPUs achieve better overall performance in this specific game. The data implies that the RTX 5090 is capable of much higher frame rates than what this CPU can deliver, particularly at 1080p where the CPU’s limitations are most exposed. This is a classic example of a high-end GPU being paired with a mid-range mobile CPU, and the resulting combo rank reflects the fact that the CPU is not able to fully feed the GPU in all scenarios.

Measured FPS Breakdown

The complete set of measured frame rates provides a comprehensive picture of how this combo performs across different resolutions and settings. At 1920x1080, the combo achieves an average of 173 FPS on Low settings, 135 FPS on Medium, 101 FPS on High, and 96 FPS on Ultra. The Medium settings row shows a minimum of 114 FPS and a maximum of 155 FPS, indicating a solid frame time consistency. Moving to 2560x1440, the averages drop to 139 FPS on Low, 109 FPS on Medium, 82 FPS on High, and 78 FPS on Ultra. The Medium settings at this resolution show a minimum of 92 FPS and a maximum of 125 FPS, which again demonstrates smooth performance without major dips.

At 3840x2160, the averages are 103 FPS on Low, 80 FPS on Medium, 60 FPS on High, and 57 FPS on Ultra. The Medium settings at 4K show a minimum of 68 FPS and a maximum of 92 FPS, which is a narrower range than at lower resolutions, suggesting that the GPU is working harder and frame times are more consistent but lower overall. The most striking observation from this data is the relatively small difference between High and Ultra settings at each resolution. At 1080p, the difference is only 5 FPS (101 vs 96), at 1440p it is 4 FPS (82 vs 78), and at 4K it is 3 FPS (60 vs 57). This indicates that the Ultra preset is not significantly more demanding than High, or that the GPU is already reaching a performance ceiling that additional graphical features do not impact substantially.

The data also reveals that the combo is capable of exceeding 60 FPS at 4K on all settings except Ultra, which is a remarkable achievement given the game’s reputation for being demanding. The 103 FPS average at 4K Low is particularly impressive and suggests that players who prioritize frame rate over visual fidelity can have an excellent experience at 4K. However, the jump from Low to Medium at 4K costs 23 FPS (103 to 80), which is a significant trade-off for the visual improvements that Medium settings provide.

Settings Recommendations

Based on the measured frame rates, the optimal settings for this combo depend heavily on the user’s display resolution and performance preferences. At 1080p, the High preset is the clear sweet spot, offering an average of 101 FPS, which is well above the 60 FPS threshold for smooth gameplay. The Ultra preset only gains 5 FPS over High, so the visual upgrade from High to Ultra is not worth the small performance hit. For players seeking maximum frame rates at 1080p, the Low preset at 173 FPS is unnecessary, as High already provides an excellent experience, but the Medium preset at 135 FPS is a good middle ground for those who want a bit more visual detail without sacrificing smoothness.

At 1440p, the High preset at 82 FPS is still a very playable option, but the Medium preset at 109 FPS offers a better balance of performance and visual quality. The Ultra preset at 78 FPS is acceptable, but the 4 FPS difference from High makes it a poor value in terms of performance per frame. The Low preset at 139 FPS is overkill for most users, but it could be useful for competitive play or for users with high refresh rate monitors who want to maximize frame rates. For most users at 1440p, the Medium preset is the recommended choice, as it provides a high frame rate with good visual fidelity.

At 4K, the decision is more complex. The Ultra preset at 57 FPS is just below the 60 FPS threshold, which could lead to occasional stutters on some displays. The High preset at 60 FPS is exactly at the threshold, providing a solid 60 FPS experience. However, the Medium preset at 80 FPS offers a significant performance advantage over High and Ultra, with only a modest reduction in visual quality. Given that the game is already visually stunning at Medium settings, the Medium preset at 4K is the best overall recommendation, as it provides a comfortable frame rate cushion above 60 FPS while maintaining good graphics. The Low preset at 103 FPS is also viable for those who prioritize performance above all else, but the visual downgrade is substantial.

CPU Role

The Intel Core Ultra 5 135H is a 14-core, 18-thread processor based on the Meteor Lake architecture, with a base clock of 3.60 GHz and a boost clock of 4.60 GHz. It has 18 MB of shared L3 cache and supports DDR5 memory with a bandwidth of 89.6 GB/s. In synthetic benchmarks, it scores 11,875.5 in Cinebench R23 multi-core and 1,700 in single-core, with a Passmark multi-thread score of 22,422. These scores place it in the 81st percentile of all CPUs, which is respectable for a mobile processor, but they do not indicate that it is a high-end desktop part.

In the context of Microsoft Flight Simulator, the CPU’s role is primarily to handle the game’s simulation logic, including physics, AI, and terrain streaming. The benchmark data shows that the CPU is capable of delivering very high frame rates at 1080p, as evidenced by the 173 FPS average at Low settings. However, the fact that the combo ranks only 586th out of 2,996 suggests that the CPU is not able to keep up with the RTX 5090 in all situations. The game is known to be CPU-sensitive at lower resolutions, and the data shows that the frame rate scaling from 1080p to 1440p at Low settings drops by 34 FPS (173 to 139), which is a larger absolute drop than the 36 FPS drop from 1440p to 4K (139 to 103). This suggests that the CPU is still contributing to performance at 1080p, but its influence wanes as the GPU becomes the dominant bottleneck at higher resolutions.

The CPU’s nearest rivals in terms of average benchmark score are all desktop-class processors, including the AMD Ryzen 7 5800X and Intel Core i5-13500HX, which have very similar average scores. This indicates that the Ultra 5 135H is performing at a level comparable to older desktop parts, but it lacks the raw single-thread performance that some newer CPUs offer. In a game like Microsoft Flight Simulator, which is heavily dependent on single-core performance for its simulation thread, the CPU’s single-core score of 1,700 in Cinebench R23 is a key metric. While this is sufficient to achieve 60 FPS at 4K Ultra, the fact that the combo cannot push past 57 FPS at that setting suggests that the CPU is holding back the GPU’s full potential. The data implies that a stronger CPU would allow the RTX 5090 to achieve higher frame rates at 4K Ultra, potentially reaching the 60 FPS threshold that this combo just misses.