Microsoft Flight Simulator

Microsoft Flight Simulator is notoriously demanding, and the data for the AMD Ryzen 5 8400F paired with the AMD Radeon RX 6650 XT shows a configuration that can handle the sim, but requires careful settings management to achieve smooth frame rates, especially at higher resolutions. The benchmark results across twelve different resolution and settings combinations reveal a system where the GPU is the primary limiting factor, but the CPU holds its own well enough to avoid major bottlenecks.

Resolution Scaling

The performance drop from 1080p to 4K is steep and consistent, clearly identifying the Radeon RX 6650 XT as the component that dictates frame rates as pixel count increases. At Low settings, the average frame rate falls from 106.3 FPS at 1920x1080 to 85.1 FPS at 2560x1440, a reduction of roughly 20%. Pushing further to 3840x2160, the average drops to 64.1 FPS, which is a 40% decrease from the 1080p result. This scaling pattern is typical for a GPU-bound scenario; the CPU has enough headroom to feed the graphics card, but the GPU simply runs out of pixel-pushing capability.

The trend is similar at higher quality presets. At High settings, the average frame rate goes from 60.3 FPS at 1080p to 51.7 FPS at 1440p, and then down to 39 FPS at 4K. The jump from 1440p to 4K at High settings is a loss of about 24% performance, which is less of a drop than the 40% seen at Low settings, but it still highlights that 4K is a heavy load. The Ultra preset shows the most dramatic scaling, with 56.9 FPS at 1080p dropping to 45.2 FPS at 1440p, and finally to 35.5 FPS at 4K. The data suggests that 1080p is the sweet spot for high refresh rate monitors, while 1440p is viable with settings adjustments, and 4K will require significant compromises to stay playable.

GPU Role

The Radeon RX 6650 XT is an 8 GB GDDR6 card with a 128-bit memory bus and a bandwidth of 280.3 GB/s. These specifications are adequate for 1080p and 1440p gaming, but the high memory demands of Microsoft Flight Simulator at 4K likely contribute to the significant frame rate drops. The GPU’s boost clock of 2635 MHz and game clock of 2410 MHz help it achieve a Passmark G3D score of 17166, placing it in the 72nd percentile of all GPUs. This score indicates a solid mid-range performer, but the nearest rivals—such as the AMD Radeon RX 6800M with a deltaPct of 0—show that it is competing with mobile and older desktop parts.

In this specific game, the GPU’s 10.79 TFLOPS of FP32 performance is what drives the raw fill rate. The pixel rate of 168.6 GPixel/s and texture rate of 337.3 GTexel/s are the metrics that matter when rendering the dense terrain and detailed aircraft models. The benchmark results show that at 4K Ultra, the card is completely overwhelmed, producing just 35.5 FPS. Even at 1080p Ultra, it only manages 56.9 FPS, which is below the 60 FPS threshold many players consider ideal. The 8 GB VRAM is likely a constraint at higher resolutions, as the sim loads large texture packs.

Settings Recommendations

Based on the measured data, the best experience for this combo balances visual fidelity with frame rate. At 1920x1080, the Medium preset offers an excellent compromise, delivering 80.7 FPS. This is significantly smoother than the 60.3 FPS at High and only slightly less visually rich. For players with a 144 Hz monitor, the Low preset at 1080p provides 106.3 FPS, which is the only configuration that approaches high refresh rate territory.

For 2560x1440, the Medium preset is again the recommended starting point, yielding 68.1 FPS. This is playable and looks good, but the High preset at 51.7 FPS may be acceptable for those who prioritize visual detail over a perfectly smooth experience. The Low preset at 1440p is a strong option for performance, hitting 85.1 FPS, but it sacrifices too much visual quality for the sim’s core appeal. At 3840x2160, only the Low preset provides a playable frame rate at 64.1 FPS, but the visual downgrade is severe. The Medium preset at 48.3 FPS is borderline, and High and Ultra are simply too slow to recommend for consistent play. For most users, sticking to 1080p or 1440p with Medium settings will provide the best overall balance.

FAQ

Q: Can this combo run Microsoft Flight Simulator at 4K?

A: Yes, but only at Low settings, where it averages 64.1 FPS. At Medium settings, the average drops to 48.3 FPS, and at High or Ultra, it falls below 40 FPS, making those presets impractical for smooth gameplay.

Q: What is the best resolution for this CPU and GPU pairing?

A: The data shows that 1920x1080 is the most consistent performer, with all four presets reaching at least 56.9 FPS. The 2560x1440 resolution is also viable, but only the Low and Medium presets achieve frame rates above 60 FPS.

Q: How does the RX 6650 XT compare to its closest rivals in benchmark scores?

A: The GPU’s average benchmark score of 29024 is essentially tied with the AMD Radeon RX 6800M, which has a deltaPct of 0. It is also within 0.6% of the AMD Radeon RX Vega M GH, indicating very similar raw performance levels.

Q: Is the CPU or GPU the bottleneck in this game?

A: The benchmark results indicate the GPU is the limiting factor. The frame rates drop significantly as resolution increases, which is a classic sign of GPU-bound performance. The CPU’s strong multi-threaded scores suggest it has enough headroom to keep up.

Q: What frame rate can I expect at 1080p with Ultra settings?

A: At 1920x1080 with the Ultra preset, the average frame rate is 56.9 FPS. This is playable, but it is below the 60 FPS mark and shows the GPU is working hard even at this resolution.

Q: How does the Ryzen 5 8400F perform in synthetic benchmarks?

A: The processor achieves a Cinebench R23 multi-core score of 20851 and a single-core score of 2943. Its average benchmark score of 25064 places it in the 82nd percentile of all CPUs, performing within 0.3% of the AMD Ryzen 5 7500F.

How This Combo Ranks

In the database of tested configurations for Microsoft Flight Simulator, this CPU and GPU pairing ranks 1118 out of 1795 tested combos. This places it in the lower half of all configurations, which is a realistic reflection of its performance profile. The RX 6650 XT’s 72nd percentile GPU ranking is dragged down by the fact that the game is extremely demanding on graphics hardware. The CPU’s 82nd percentile ranking shows it is a capable partner, but the overall combo rank is determined by the weakest link, which is the graphics card in this instance.

The rank suggests that while this combo is not a top-tier performer, it is far from the bottom. For a mid-range setup, it sits in a crowded field where many other combinations with similar GPU performance will land in the same area. The data implies that this is a workable configuration for 1080p gaming, but it will not stand out in any performance charts. Users looking for a higher rank would need to invest in a more powerful GPU, as the CPU is likely not the primary constraint.

CPU Role

The AMD Ryzen 5 8400F is a 6-core, 12-thread processor based on the Zen 4 architecture, with a base clock of 4.20 GHz and a boost clock of 4.70 GHz. Its synthetic benchmark scores are strong, particularly in multi-threaded tests, where it achieves a Passmark multi-thread score of 24530 and a Cinebench R23 multi-core score of 20851. This level of performance is more than sufficient for Microsoft Flight Simulator, which benefits from multiple cores for physics and AI calculations.

The CPU’s 16 MB of shared L3 cache and 83.2 GB/s of memory bandwidth provide a solid foundation for feeding the GPU. In the context of this game, the CPU’s role is to handle the simulation logic, and the data suggests it does so without being a major bottleneck. The benchmark results show that the frame rate scales with resolution, which is the opposite of what you would see in a CPU-limited scenario. This confirms that the Ryzen 5 8400F is providing enough processing power to allow the RX 6650 XT to become the limiting factor. The CPU’s 82nd percentile ranking, with an average score of 25064, places it slightly ahead of the AMD Ryzen 7 2700X, which has a deltaPct of 0, making it a robust choice for this sim.