Microsoft Flight Simulator

The Intel Core i5-14600K paired with the NVIDIA GeForce RTX 5090 is a high-end combination that delivers exceptionally smooth performance in Microsoft Flight Simulator across all tested resolutions and presets. The data shows this pairing ranks 60th out of 3714 tested combos, placing it in the top percentile of systems capable of running this demanding flight simulator.

Similar Performance Alternatives

Examining the nearest rivals for each component provides context on what other hardware would deliver comparable overall system performance. For the Intel Core i5-14600K, the closest alternatives are remarkably tight in average benchmark scores. The Intel Xeon Gold 5318H scores 48698, which is just 0.2% higher than the i5-14600K's 48618 average. Similarly, the AMD EPYC 4345P sits at 48470, a mere 0.3% lower. The Intel Core Ultra 5 245HX and Intel Core Ultra 5 245 round out the group with scores of 48287 and 48995, representing deltas of 0.7% and -0.8% respectively. These four CPUs would behave nearly identically in CPU-limited scenarios within Microsoft Flight Simulator, meaning the choice between them would have minimal practical impact on frame rates.

On the GPU side, the RTX 5090's nearest rivals show slightly more variance but remain within a narrow band. The NVIDIA Tesla P100 PCIe 16 GB scores 79605, which is 0.3% lower than the RTX 5090's 79842 average. The Tesla P100 PCIe 12 GB trails by 0.6% at 79396, while the AMD Radeon RX 6850M XT comes in at 78940, a 1.1% deficit. The AMD Radeon Pro Vega 64X actually scores higher at 80959, representing a -1.4% deltaPct from the RTX 5090's perspective. These figures indicate that in GPU-bound workloads, any of these alternatives would produce frame rates within a couple percent of the RTX 5090, although the RTX 5090's substantial 32 GB GDDR7 memory and 1.79 TB/s bandwidth give it advantages in texture-heavy scenarios that these benchmark averages may not fully capture.

CPU and GPU Roles

The benchmark data reveals how the balance between CPU and GPU workload shifts across resolutions and presets in Microsoft Flight Simulator. At 1920x1080 with Low settings, the system achieves 223.2 FPS, while moving to 2560x1440 Low drops this to 189.6 FPS, and 3840x2160 Low further reduces it to 143.1 FPS. This scaling pattern shows that even at Low settings, where the GPU has less work to do, resolution increases still exact a significant toll—a 37.6% performance decrease from 1080p to 4K. This suggests the RTX 5090 remains the primary bottleneck even at lower presets, as the i5-14600K's strong single-thread performance (2064 in Cinebench R23 single-core) keeps up with the GPU's demands.

At Ultra settings, the resolution scaling becomes even more pronounced. The system delivers 136.3 FPS at 1080p, 106.8 FPS at 1440p, and exactly 80 FPS at 4K. The jump from 1080p to 1440p Ultra represents a 21.6% reduction, while 1440p to 4K Ultra costs another 25.1%. This steeper scaling at higher presets confirms that the GPU's workload expands disproportionately with resolution when more complex rendering features are enabled. The CPU's role becomes relatively more important at lower resolutions and presets, where the higher frame rates (223.2 FPS at 1080p Low) demand rapid draw call processing and physics calculations from the i5-14600K's 14 cores and 20 threads.

Measured FPS Breakdown

The measured FPS data provides a complete picture of performance across three resolutions and four settings levels. At 1920x1080, the system ranges from 223.2 FPS at Low to 185.9 FPS at Medium, 144.2 FPS at High, and 136.3 FPS at Ultra. The gap between Low and Ultra at 1080p is 86.9 FPS, representing a 38.9% reduction. Interestingly, the step from Medium to High at 1080p costs 41.7 FPS, while the step from High to Ultra only costs 7.9 FPS, indicating diminishing returns in performance cost as settings approach maximum.

At 2560x1440, the frame rates remain comfortably high across all presets. Low settings produce 189.6 FPS, Medium delivers 153.1 FPS, High achieves 110.6 FPS, and Ultra maintains 106.8 FPS. The transition from High to Ultra at 1440p costs just 3.8 FPS, making Ultra essentially free in performance terms over High. The Medium to High transition at 1440p is the steepest, dropping 42.5 FPS, which represents the largest single-settings penalty across any resolution in this dataset.

Moving to 3840x2160, the system still delivers excellent playability. Low settings produce 143.1 FPS, Medium drops to 107.7 FPS, High reaches 80.3 FPS, and Ultra sits at exactly 80 FPS. Notably, at 4K, High and Ultra produce nearly identical results (80.3 versus 80.0 FPS), suggesting that the Ultra preset's additional features are largely GPU-bound but the RTX 5090 handles them without meaningful extra cost at this resolution. The Low to Medium transition at 4K costs 35.4 FPS, while Medium to High costs 27.4 FPS, showing a fairly linear scaling pattern until the High to Ultra step where the difference becomes negligible.

The Verdict

This PC configuration can run Microsoft Flight Simulator with exceptional performance at every resolution and preset combination tested. The verdict data confirms that all four settings levels—Low, Medium, High, and Ultra—are playable at all three resolutions, with the playable threshold set at 60 FPS. At 3840x2160, the system delivers a minimum of 80 FPS at Ultra settings, which is 33.3% above the playable threshold. This means users can enable the highest quality preset at 4K without any concern about dropping below smooth frame rates.

At 2560x1440, performance is even more robust, with Ultra settings producing 106.8 FPS—a 78% margin above the 60 FPS threshold. The 1920x1080 resolution offers the most headroom, with Ultra settings achieving 136.3 FPS and Low settings reaching 223.2 FPS, more than 3.7 times the playable threshold. The data indicates that this combination never approaches the 60 FPS floor in any tested configuration, providing substantial performance reserves for demanding flight scenarios, dense scenery, or future game updates that may increase system requirements.

FAQ

Q: What is the highest playable settings preset at 4K resolution?

A: At 3840x2160, all four presets are playable, with Ultra settings achieving 80 FPS average. This is the best settings option at 4K, as it provides the highest visual quality while still exceeding the 60 FPS playable threshold.

Q: How much performance difference exists between High and Ultra settings at 1440p?

A: At 2560x1440, High settings produce 110.6 FPS while Ultra settings achieve 106.8 FPS. The difference is only 3.8 FPS, meaning Ultra delivers nearly identical performance to High while providing enhanced visual fidelity.

Q: Does the system maintain 60 FPS at 1080p with the Ultra preset?

A: Yes, at 1920x1080 with Ultra settings, the system reaches 136.3 FPS average, which is more than double the 60 FPS playable threshold. Even the most demanding preset at the lowest resolution leaves substantial performance headroom.

Q: How does the RTX 5090 compare to its closest GPU rivals in average benchmark scores?

A: The RTX 5090 averages 79842 in benchmark scores, placing it 0.3% above the NVIDIA Tesla P100 PCIe 16 GB (79605) and 0.6% above the Tesla P100 PCIe 12 GB (79396). The AMD Radeon RX 6850M XT trails by 1.1% at 78940, while the AMD Radeon Pro Vega 64X leads by 1.4% at 80959.

Q: What is the performance scaling from 1080p to 4K at Medium settings?

A: At Medium settings, the system produces 185.9 FPS at 1920x1080, 153.1 FPS at 2560x1440, and 107.7 FPS at 3840x2160. This represents a 42.1% reduction from 1080p to 4K, showing the significant GPU workload increase at higher resolutions.

Q: How does the i5-14600K rank among all CPUs?

A: The Intel Core i5-14600K holds a 90th percentile ranking among all CPUs, with an average benchmark score of 48618. Its closest rival, the Intel Xeon Gold 5318H, scores nearly identically at 48698 with just a 0.2% difference.

Best Settings per Resolution

At 1920x1080, the most demanding preset that maintains 60 FPS is Ultra, which achieves 136.3 FPS average. This provides the highest visual quality with ample performance margin. At 2560x1440, Ultra settings also represent the best choice, delivering 106.8 FPS average, still well above the playable threshold. For 3840x2160, Ultra settings remain viable at exactly 80 FPS average, offering the complete visual experience while staying 33.3% above the 60 FPS minimum. Across all resolutions, the Ultra preset is the recommended configuration, as it never falls below 80 FPS in any tested scenario, eliminating the need to compromise on visual fidelity.

How This Combo Ranks

The Intel Core i5-14600K and NVIDIA GeForce RTX 5090 combination ranks 60th out of 3714 tested configurations for Microsoft Flight Simulator. This places the system in the top 1.6% of all tested combos, indicating exceptional suitability for this game. The high rank reflects the balanced partnership between the CPU's strong single-threaded performance (2064 in Cinebench R23 single-core) and the GPU's massive compute capabilities (104.8 TFLOPS FP32). The 90th percentile CPU ranking and 92nd percentile GPU ranking combine to produce a system that excels in this flight simulator's demanding rendering and physics workloads. While higher-ranked combos likely feature even more powerful processors, the data shows that this configuration provides no meaningful performance compromise, with all tested settings and resolutions clearing the 60 FPS threshold by substantial margins.