Microsoft Flight Simulator

Microsoft Flight Simulator pairs the AMD Ryzen 9 8945HX with the NVIDIA GeForce RTX 4090 in a mobile configuration that delivers a top-tier experience, though the data shows the combination ranks 614th out of 2996 tested combos. The measured frames per second across resolutions and settings indicate a system capable of smooth flight simulation at high fidelity, but the scaling behavior reveals a nuanced balance between CPU and GPU workloads. This analysis breaks down the processor's role, answers common questions, recommends optimal settings, and interprets the performance metrics from the FACT PACK.

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

The AMD Ryzen 9 8945HX is a 16-core, 32-thread processor based on the Zen 4 architecture, specifically the Dragon Range codename, running on the AMD Socket FL1. Its base clock is 2.50 GHz, boosting up to 5.40 GHz, which provides substantial single-thread headroom for flight simulation's primary physics and weather calculations. The CPU's 64 MB of L3 cache and 1 MB L2 per core help maintain data locality for the complex world-streaming tasks inherent in Microsoft Flight Simulator, though the game's engine tends to favor fewer, faster cores over massive parallel throughput.

Benchmark results show the processor achieves a Cinebench R23 multi-core score of 42713 and a single-core score of 6030, with a PassMark multi-thread score of 51405. The CPU's percentile vs all CPUs is 95, indicating it outperforms the vast majority of processors in general compute tasks. In the context of Microsoft Flight Simulator, the 5.40 GHz boost clock is critical, as the game's frame pacing often depends on the main thread's ability to process flight dynamics, autopilot logic, and terrain loading without bottlenecking the GPU.

The nearest rivals in CPU benchmark scores include the Intel Core Ultra 9 285HX, which scores 76155 on average with a deltaPct of 0.1%, meaning the Ryzen 9 8945HX is essentially tied with it. The AMD Ryzen 9 9950X3D scores 75779 with a deltaPct of 0.6%, placing the 8945HX slightly ahead. These margins are negligible for gaming, but the 8945HX's high boost clock and 16 cores ensure it can feed the RTX 4090 at most resolutions, as evidenced by the FPS scaling from 1080p to 4K.

In Microsoft Flight Simulator specifically, the CPU's role is magnified at lower resolutions, where the GPU has spare capacity. At 1080p Low settings, the combo achieves 166 FPS, which suggests the CPU can drive high frame rates when the GPU is not the limiting factor. Conversely, at 4K Ultra, the FPS drops to 55, indicating the GPU becomes the bottleneck as pixel count increases. The data suggests the Ryzen 9 8945HX provides sufficient single-thread performance for the game's simulation loop, while its 32 threads handle background tasks like scenery loading and AI traffic without stuttering the main render thread.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the highest average FPS this combo achieves in Microsoft Flight Simulator at 1080p?

A: At 1080p with Low settings, the combo reaches an average of 166 FPS, which is the highest measured frame rate across all configurations in the FACT PACK.

Q: How does the combo's performance at 1440p High compare to 4K High?

A: At 1440p High, the average FPS is 78, while at 4K High, it drops to 58. This represents a 20 FPS difference, or roughly a 26% reduction in frame rate when moving from 2560x1440 to 3840x2160 at High settings.

Q: Which settings preset provides the most consistent frame rate with the least variation?

A: The Medium preset at 1440p shows a minimum of 88 FPS and a maximum of 119 FPS, with an average of 104. At 1080p Medium, the range is 109 to 148 FPS with an average of 129. These are the only presets with min/max data, and the 1440p Medium range of 31 FPS suggests relatively stable performance.

Q: Does the combo rank in the top 20% of all tested combos for this game?

A: Yes, the combo ranks 614th out of 2996 combos, placing it in the top 20.5% of all tested configurations, which indicates strong overall performance for Microsoft Flight Simulator.

Q: What is the lowest average FPS measured, and at which resolution and settings?

A: The lowest average FPS is 55, achieved at 4K with Ultra settings. This is below the 60 FPS threshold typically desired for smooth gameplay, but the High preset at 4K yields 58 FPS, suggesting a slight tuning can help.

Q: How does the CPU's multi-threaded benchmark score relate to the game's performance at high settings?

A: The CPU's Cinebench R23 multi-core score is 42713, and its PassMark multi-thread score is 51405. These high scores indicate the processor can handle the game's background threads, but the FPS at 4K Ultra (55) shows that the GPU's workload dominates at higher resolutions, not the CPU's parallel capabilities.

Settings Recommendations — which preset gives the best experience per the measured rows

The data reveals a clear trade-off between visual fidelity and frame rate across the four presets: Low, Medium, High, and Ultra. At 1080p, the Low preset achieves 166 FPS, Medium 129 FPS, High 97 FPS, and Ultra 92 FPS. The jump from Medium to High costs 32 FPS (a 25% reduction), while High to Ultra only costs 5 FPS (a 5% reduction). This suggests that High is the sweet spot for 1080p, offering a substantial visual improvement over Medium with only a modest FPS penalty, and barely losing performance to Ultra.

At 1440p, the same pattern holds: Low at 133 FPS, Medium 104 FPS, High 78 FPS, and Ultra 74 FPS. The transition from Medium to High drops 26 FPS (a 25% reduction), while High to Ultra drops only 4 FPS (a 5% reduction). For a balanced experience, High at 1440p provides 78 FPS, which is above the 60 FPS playability threshold, and the 4 FPS gain from Ultra is not worth the potential visual strain on the GPU.

At 4K, the story changes: Low achieves 98 FPS, Medium 77 FPS, High 58 FPS, and Ultra 55 FPS. The Medium preset at 77 FPS is the best recommendation for 4K, as it maintains a smooth frame rate while offering better visuals than Low. The High preset at 58 FPS is borderline, and Ultra at 55 FPS dips below 60 FPS, which can cause noticeable stuttering in a flight simulator where smooth camera pans are essential. The data indicates that Medium at 4K is the optimal choice, balancing fluidity and detail.

Across all resolutions, the Medium preset consistently delivers the most balanced experience, with 4K Medium at 77 FPS, 1440p Medium at 104 FPS, and 1080p Medium at 129 FPS. This preset also provides min/max FPS data, showing a range of 65-88 FPS at 4K, 88-119 FPS at 1440p, and 109-148 FPS at 1080p, which indicates acceptable frame time consistency. For users prioritizing visual quality, High at 1080p (97 FPS) or 1440p (78 FPS) is viable, but 4K High (58 FPS) is only recommended for those with adaptive sync displays.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combo of AMD Ryzen 9 8945HX and NVIDIA GeForce RTX 4090 ranks 614th out of 2996 tested combinations in Microsoft Flight Simulator. This position places it in the top 20.5% of all systems, which is a strong showing for a mobile platform. The rank reflects the combined performance of the CPU and GPU, and the data suggests that while the RTX 4090 is a top-tier graphics card (88th percentile vs all GPUs), the CPU's 95th percentile ranking helps push this combo higher than many desktop configurations with weaker processors.

The RTX 4090's nearest rivals in GPU benchmark scores include the Intel Arc Pro A60, which scores 60326 with a deltaPct of 0%, and the AMD Radeon Pro Vega 48, which scores 60140 with a deltaPct of 0.3%. These are workstation-class GPUs, not gaming-focused, so the RTX 4090's gaming performance is expected to be superior despite the benchmark parity. The GPU's PassMark G3D score of 38194 and DirectX 12 score of 150 highlight its compute capabilities, but in Microsoft Flight Simulator, the 4K Ultra FPS of 55 indicates the GPU is being pushed to its limits.

The combo's rank of 614 means there are 2382 combos that perform worse, and 613 that perform better. Given that the RTX 4090 is an end-of-life product and the CPU is a recent mobile chip, this ranking is respectable but not top-100 material. The data indicates that systems with higher-ranking combos likely use desktop-class CPUs with even higher boost clocks or more aggressive cooling, allowing the GPU to stretch its legs at lower resolutions. In this mobile configuration, the 55W TDP CPU may throttle under sustained load, but the measured FPS suggests it does not significantly bottleneck the RTX 4090 at 4K.

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

The measured FPS across resolutions reveals a classic GPU-bound scaling pattern at higher settings, but a more complex picture at lower settings. At Low settings, the average FPS drops from 166 at 1080p to 133 at 1440p (a 20% reduction) and then to 98 at 4K (a 26% reduction from 1440p). This steep drop indicates that even at Low settings, the GPU is becoming the limiting factor as resolution increases, because the RTX 4090's fill rate is challenged by the sheer number of pixels at 4K.

At Medium settings, the FPS drops from 129 at 1080p to 104 at 1440p (a 19% reduction) and then to 77 at 4K (a 26% reduction from 1440p). The consistent ~20% drop from 1080p to 1440p and ~26% drop from 1440p to 4K suggests the GPU is the primary bottleneck, as the CPU's workload remains relatively constant across resolutions. The CPU's 16 cores and high boost clock ensure it can feed the GPU at all resolutions, but the RTX 4090's pixel processing limits the frame rate.

At High settings, the FPS drops from 97 at 1080p to 78 at 1440p (a 20% reduction) and then to 58 at 4K (a 26% reduction from 1440p). The 4K High FPS of 58 is just below 60, indicating that the GPU is heavily loaded. At Ultra settings, the FPS drops from 92 at 1080p to 74 at 1440p (a 20% reduction) and then to 55 at 4K (a 26% reduction from 1440p). The Ultra preset at 4K yields the lowest FPS, confirming that the RTX 4090 is the limiting component at higher resolutions and settings.

The data shows that the CPU's performance is sufficient to avoid bottlenecking the GPU at 1080p, where the 166 FPS at Low settings demonstrates headroom. However, as resolution increases, the GPU's workload grows quadratically with pixel count, causing the FPS to drop proportionally. The consistent ~20-26% drops across all settings indicate that the RTX 4090 is the limiting component, not the Ryzen 9 8945HX. This is expected for a flight simulator, which relies heavily on GPU rendering for terrain and cloud detail.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

1920x1080:

• Low: Average FPS 166 (highest of all configurations).
• Medium: Average FPS 129, with a minimum of 109 and maximum of 148, providing a 39 FPS range.
• High: Average FPS 97, a 25% reduction from Medium.
• Ultra: Average FPS 92, only 5 FPS higher than High, showing diminishing returns.

2560x1440:

• Low: Average FPS 133, a 20% drop from 1080p Low.
• Medium: Average FPS 104, with a minimum of 88 and maximum of 119, a 31 FPS range.
• High: Average FPS 78, a 25% reduction from Medium.
• Ultra: Average FPS 74, only 4 FPS higher than High, repeating the 1080p pattern.

3840x2160:

• Low: Average FPS 98, a 26% drop from 1440p Low.
• Medium: Average FPS 77, with a minimum of 65 and maximum of 88, a 23 FPS range.
• High: Average FPS 58, a 25% reduction from Medium, just under 60 FPS.
• Ultra: Average FPS 55, the lowest measured, 3 FPS below High.

The data shows that the Medium preset is the only one with min/max FPS data across all resolutions, providing insight into frame time stability. At 1080p Medium, the 109-148 FPS range indicates strong consistency, while at 1440p Medium, the 88-119 FPS range is wider but still playable. At 4K Medium, the 65-88 FPS range shows a 23 FPS variance, which could cause occasional hitches in a flight simulator. The High and Ultra presets lack min/max data, but the average FPS trends suggest that High is the most efficient preset for visual quality, while Ultra offers negligible gains. For a smooth experience, the Medium preset at 4K (77 FPS) is the best choice, while 1440p High (78 FPS) and 1080p High (97 FPS) provide excellent alternatives for users with higher refresh rate displays.