Microsoft Flight Simulator

# Microsoft Flight Simulator — AMD Ryzen 9 9900X3D + AMD Radeon RX 7800 XT

The measured frame rates for Microsoft Flight Simulator with the AMD Ryzen 9 9900X3D and AMD Radeon RX 7800 XT show a configuration that scales predictably across resolutions and settings, with the GPU emerging as the primary constraint at higher graphical loads. The data set spans three resolutions (1920x1080, 2560x1440, 3840x2160) and four settings presets (Low, Medium, High, Ultra), providing a complete picture of how this combo behaves under varied demands. The CPU, with 12 cores and 24 threads based on Zen 5 architecture, posts strong synthetic scores, while the GPU, built on RDNA 3.0 with 16 GB of GDDR6 memory, delivers consistent but not class-leading results. Across all twelve measured configurations, the average frame rates range from 49 FPS at 4K Ultra to 149 FPS at 1080p Low, with the combo ranking 947th out of 2996 tested combinations in this game.

Resolution Scaling

The transition from 1080p to 4K reveals a clear pattern of GPU-bound performance degradation, with average frame rates dropping by roughly 41% to 45% depending on the settings preset. At Low settings, the average FPS falls from 149 at 1920x1080 to 120 at 2560x1440, then further to 88 at 3840x2160 — a cumulative drop of 61 FPS, or approximately 41% from the 1080p baseline. The Medium preset shows a similar trajectory: 116 FPS at 1080p, 93 FPS at 1440p, and 69 FPS at 4K, representing a 40.5% reduction from 1080p to 4K. High settings move from 87 FPS at 1080p to 70 FPS at 1440p to 52 FPS at 4K, a 40.2% total decrease, while Ultra settings span 83 FPS at 1080p, 67 FPS at 1440p, and 49 FPS at 4K, a 41% drop.

The consistency of these percentage drops across all four presets is notable. It suggests that the scaling bottleneck is largely resolution-driven rather than setting-driven, which points to the GPU as the limiting component. The RX 7800 XT's memory bandwidth of 624.1 GB/s over a 256-bit bus becomes increasingly stressed as pixel count rises, and the data reflects this: the gap between 1080p and 1440p averages roughly 20-23 FPS across presets, while the gap between 1440p and 4K is slightly larger at 18-32 FPS. Interestingly, the Low preset shows the largest absolute drop from 1440p to 4K (32 FPS), indicating that even at minimal graphical complexity, the 4K resolution demands more than the GPU can efficiently deliver in this simulation-heavy title.

The fact that 4K Ultra yields 49 FPS and 4K High yields 52 FPS — a difference of only 3 FPS — suggests that beyond a certain point, additional graphical fidelity does not translate into proportional frame rate penalties. This behavior is typical of a system where the GPU is already operating near its ceiling; the rendering pipeline is saturated, and both presets are constrained by the same underlying throughput limits. Conversely, at 1080p, the spread between Low (149 FPS) and Ultra (83 FPS) is 66 FPS, showing that at lower resolutions, settings changes have a much larger relative impact — a sign that the CPU can keep feeding frames and the GPU has headroom to respond to preset adjustments.

GPU Role

The AMD Radeon RX 7800 XT, with its Navi 32 chip on a 5 nm TSMC process, provides 16 GB of GDDR6 memory across a 256-bit bus, resulting in a bandwidth of 624.1 GB/s. The memory clocks run at 2438 MHz (19.5 Gbps effective), while the GPU boost clock reaches 2430 MHz with a game clock of 2124 MHz. In Microsoft Flight Simulator, which streams vast terrain and scenery data, the 16 GB frame buffer proves adequate even at 4K Ultra, where the average FPS of 49 indicates the card is compute-limited rather than memory-limited. The 60 ray accelerators and 96 ROPs handle the game's lighting and rasterization demands, but the data shows that at 4K, the card cannot maintain 60 FPS on any preset — the best 4K result is 88 FPS on Low, which drops to 52 FPS on High and 49 FPS on Ultra.

The GPU's synthetic benchmark percentile of 51 against all GPUs places it in the mid-range tier, and its nearest rivals in average benchmark score include the NVIDIA GeForce GTX 1660 (deltaPct -0.5%), the AMD Radeon Pro 5500M (deltaPct 0.9%), and the NVIDIA Tesla K20c (deltaPct 1.3%). In this game's measured results, the 7800 XT's performance aligns with that mid-range positioning: it handles 1080p and 1440p comfortably across all settings, with 1440p Ultra producing 67 FPS and 1080p Ultra producing 83 FPS. The card's 37.32 TFLOPS of FP32 compute and 583.2 GTexel/s texture rate are sufficient for the game's detailed aircraft models and cockpit instrumentation, but the 4K results suggest a hard ceiling around 88 FPS even at Low settings.

The relationship between VRAM capacity and settings is worth noting. At 1080p, moving from Low to Ultra reduces average FPS by 66 FPS (149 to 83), yet the 16 GB buffer never appears to be a constraint — the frame rate differences are consistent with compute and bandwidth scaling rather than memory capacity limits. At 4K, the same settings change only reduces FPS by 39 FPS (88 to 49), which is a smaller absolute difference but a larger percentage gap relative to the already lower 4K baseline. This compression of performance at higher resolutions reinforces that the GPU's execution units, not its memory pool, are the limiting factor in this configuration.

How This Combo Ranks

This specific combination of the AMD Ryzen 9 9900X3D and AMD Radeon RX 7800 XT ranks 947th out of 2996 tested combos in Microsoft Flight Simulator, placing it in the 68th percentile of all tested systems. The rank reflects a balance between a high-end CPU and a mid-range GPU — the CPU's strengths are largely neutralized in this game at 4K, where the GPU becomes the dominant constraint, but the combo still outperforms a substantial majority of tested systems. The rank of 947 within 2996 total combos indicates that while this configuration is above average, it is not in the top tier for this specific title, which likely favors systems with more powerful GPUs given the simulation's rendering demands.

The CPU component alone, however, is a different story. The Ryzen 9 9900X3D sits in the 91st percentile against all CPUs, with an average benchmark score of 54762. Its nearest rivals include the Intel Core Ultra 5 245KF (avgScore 55093, deltaPct -0.6%), the Intel Core Ultra 5 245K (avgScore 54053, deltaPct 1.3%), the Intel Xeon 6505P (avgScore 53701, deltaPct 2%), and the Intel Core i7-14700F (avgScore 53620, deltaPct 2.1%). The CPU's 128 MB of L3 cache and 4.40 GHz base clock rising to 5.50 GHz boost contribute to strong single-thread and multi-thread synthetic scores, including a Cinebench R23 multicore score of 47737 and a single-core score of 6739. In this game, the CPU's power is most evident at 1080p Low, where the 149 FPS average suggests the CPU can feed frames faster than the GPU can render them at low fidelity.

The deltaPct values against the CPU's nearest rivals indicate a tight grouping — the 9900X3D is within 2.1% of all four listed alternatives in average synthetic score. This means that swapping to any of these CPUs would likely produce minimal changes in this game's frame rates, especially at higher resolutions where the GPU is the bottleneck. The combo rank of 947, therefore, is more reflective of the GPU's mid-range standing than the CPU's high-end positioning, and users seeking higher rankings in this specific game would need to upgrade the GPU rather than the processor.

Measured FPS Breakdown

At 1920x1080, the measured average frame rates span 149 FPS on Low, 116 FPS on Medium, 87 FPS on High, and 83 FPS on Ultra. The Medium preset includes min and max values of 98 and 133 FPS respectively, showing a 35 FPS variance during gameplay. The gap between Low and Medium is 33 FPS, while the gap between Medium and High is 29 FPS, and between High and Ultra is just 4 FPS — indicating diminishing returns at the top end of the settings spectrum. At 1080p, even the most demanding Ultra preset maintains an average above 80 FPS, which is smooth for a flight simulator that frequently renders dense urban environments and complex cloud systems.

At 2560x1440, the averages drop to 120 FPS on Low, 93 FPS on Medium, 70 FPS on High, and 67 FPS on Ultra. The Medium preset again provides min/max data points of 79 and 107 FPS, a variance of 28 FPS that is slightly tighter than at 1080p. The transition from 1080p to 1440p costs 29 FPS on Low, 23 FPS on Medium, 17 FPS on High, and 16 FPS on Ultra. Notably, the absolute FPS loss from resolution scaling decreases as settings increase, reinforcing that higher presets already stress the GPU enough that additional resolution has a smaller marginal impact. At 1440p, all presets except Ultra remain above 70 FPS, and Ultra still delivers 67 FPS, making this resolution the sweet spot for high-fidelity gameplay.

At 3840x2160, the averages are 88 FPS on Low, 69 FPS on Medium, 52 FPS on High, and 49 FPS on Ultra. The Medium preset shows min/max of 59 and 79 FPS, a 20 FPS variance that indicates more consistency than at lower resolutions. The drop from 1440p to 4K is 32 FPS on Low, 24 FPS on Medium, 18 FPS on High, and 18 FPS on Ultra. At 4K, only the Low preset achieves an average above 60 FPS, while Medium barely exceeds it at 69 FPS. High and Ultra both fall below 60 FPS, with Ultra at 49 FPS representing a borderline playable experience for a simulation genre where frame rate dips are less critical than in fast-paced action titles. The min FPS of 59 at 4K Medium suggests that even during demanding scenes, the system rarely drops below the 60 FPS threshold, but the average of 69 FPS leaves limited headroom.

Settings Recommendations

Based on the measured data, the optimal settings depend on the user's resolution and frame rate priorities. At 1920x1080, the Ultra preset at 83 FPS average is the best choice for visual fidelity without sacrificing smoothness, since the 4 FPS difference between High and Ultra is negligible, making Ultra the clear pick for maximum quality. At 2560x1440, the Medium preset at 93 FPS average offers the best balance — it provides a 23 FPS advantage over High (70 FPS) and a 26 FPS advantage over Ultra (67 FPS), while the visual step from Medium to High is typically more noticeable than the step from High to Ultra in flight simulators. The Medium preset's min FPS of 79 also ensures that even the most demanding scenes stay well above 60 FPS.

At 3840x2160, the situation is more nuanced. The Low preset at 88 FPS average is the only option that provides comfortable headroom above 60 FPS, but it sacrifices significant visual detail in a game where scenery fidelity is a core experience. The Medium preset at 69 FPS average is the recommended compromise — it delivers an average above 60 FPS with a min FPS of 59, meaning the system is essentially at the 60 FPS threshold even in worst-case scenes. High at 52 FPS and Ultra at 49 FPS are both below 60 FPS averages, which may be acceptable in a flight simulator where camera movement is often slow and deliberate, but the data suggests that Medium provides the best frame rate stability per visual investment. For users who prioritize smoothness over absolute fidelity, Low at 4K offers 88 FPS, but the visual downgrade is substantial given the game's reliance on detailed terrain rendering.

The diminishing returns pattern — where High to Ultra yields only 3-4 FPS improvements at 4K and 1440p — indicates that the Ultra preset is rarely worth the performance cost in this configuration. The data consistently shows that Medium offers the largest performance headroom relative to the next higher preset, making it the most versatile choice across all three resolutions.

FAQ

Q: What is the best resolution for this combo in Microsoft Flight Simulator?

A: Based on the measured data, 2560x1440 offers the best balance of visual quality and performance, with all presets except Ultra averaging above 70 FPS. At 1440p Medium, the average is 93 FPS with a min of 79 FPS, providing smooth gameplay without requiring the visual compromises of 1080p.

Q: Can this system handle 4K gaming in Microsoft Flight Simulator?

A: Yes, but with limitations. At 4K, the Low preset averages 88 FPS and Medium averages 69 FPS, both above 60 FPS. However, High averages 52 FPS and Ultra averages 49 FPS, which fall below the 60 FPS threshold. The Medium preset at 4K is the highest setting that maintains an average near 60 FPS.

Q: How does the CPU compare to its nearest rivals?

A: The Ryzen 9 9900X3D has an average benchmark score of 54762, which is 0.6% lower than the Intel Core Ultra 5 245KF (55093), 1.3% higher than the Intel Core Ultra 5 245K (54053), 2% higher than the Intel Xeon 6505P (53701), and 2.1% higher than the Intel Core i7-14700F (53620). These differences are minimal in practical terms.

Q: Is the GPU the bottleneck in this configuration?

A: The data indicates yes, especially at higher resolutions. The consistent 40-45% FPS drop from 1080p to 4K across all settings presets points to GPU-bound scaling. The CPU's 91st percentile ranking versus the GPU's 51st percentile ranking further supports that the GPU is the limiting component.

Q: What is the frame rate variance at different settings?

A: The measured min/max data is available only for the Medium preset. At 1080p Medium, the range is 98 to 133 FPS (35 FPS variance). At 1440p Medium, the range is 79 to 107 FPS (28 FPS variance). At 4K Medium, the range is 59 to 79 FPS (20 FPS variance). Variance decreases as resolution increases, indicating more consistent frame pacing at higher resolutions.

Q: How does this combo rank compared to other tested systems?

A: This configuration ranks 947th out of 2996 tested combos in Microsoft Flight Simulator, placing it in the top 68% of all tested systems. The rank reflects a strong CPU paired with a mid-range GPU, and the GPU's limitations at 4K prevent a higher overall ranking.

CPU Role

The AMD Ryzen 9 9900X3D, with its 12 cores and 24 threads based on the Zen 5 architecture (Granite Ridge codename), provides substantial processing headroom that is most apparent at lower resolutions and settings. The CPU's 128 MB of L3 cache, 4.40 GHz base clock, and 5.50 GHz boost clock contribute to synthetic scores such as a Cinebench R23 multicore result of 47737 and a single-core result of 6739. In Microsoft Flight Simulator, which is known for heavy single-threaded simulation logic, the single-core performance directly influences frame pacing at 1080p Low, where the 149 FPS average suggests the CPU can generate frames faster than the GPU can render them.

However, the CPU's role diminishes as resolution increases. At 4K, the average FPS ranges from 49 to 88 depending on settings, and these numbers are far below what the CPU's synthetic capabilities suggest it could support. The 3DMark results — 1269 single-thread, 4885 for 4 threads, 9002 for 8 threads, and 13795 for max threads — show strong scaling across thread counts, but this scaling does not translate into higher frame rates at 4K because the GPU becomes the limiting factor. The CPU's 91st percentile ranking against all CPUs, with an average benchmark score of 54762, puts it well above the GPU's 51st percentile ranking, quantifying the imbalance.

The CPU's nearest rivals in synthetic benchmarks — the Intel Core Ultra 5 245KF, Intel Core Ultra 5 245K, Intel Xeon 6505P, and Intel Core i7-14700F — all score within 2.1% of the 9900X3D's average. In this game, these differences would likely be imperceptible, especially at 1440p and 4K where the GPU dominates performance. The CPU's 120 W TDP and dual-channel DDR5 memory support with 89.6 GB/s bandwidth ensure that memory bandwidth is not a bottleneck for the GPU, but the measured frame rates across all resolutions and settings are ultimately constrained by the RX 7800 XT's throughput. For users considering upgrades, the data suggests that the CPU has ample headroom for a future GPU upgrade, as the 4K Ultra result of 49 FPS is more than 100 FPS below the 1080p Low result, indicating the CPU is not the limiting factor in any measured configuration.