Microsoft Flight Simulator

Microsoft Flight Simulator is a uniquely demanding title, and the data for the AMD Ryzen 5 7400F paired with the AMD Radeon RX 7900 XTX shows a configuration that is heavily influenced by both resolution and the in-game preset. The measured FPS across the board indicates that while this combination is capable of high frame rates, the balance between the CPU and GPU shifts dramatically depending on the settings chosen. This analysis breaks down the measured performance to help determine the optimal way to run the simulator.

Resolution Scaling

The transition from 1080p to 4K reveals a classic pattern of GPU-bound scaling, but with a twist specific to this simulator. At 1080p with Low settings, the system achieves a measured 192 FPS average. Moving to 1440p at the same Low preset drops that to 155 FPS, and further to 4K yields 114 FPS. This shows a substantial performance hit as pixel count increases, indicating the GPU is doing increasingly heavy lifting. The scaling from 1080p to 1440p is a 19% reduction in FPS, and from 1440p to 4K is another 26% reduction, demonstrating that even at Low settings, the RX 7900 XTX is the primary limiter as resolution climbs.

However, the picture changes when examining higher settings. At Ultra settings, the frame rates are much closer across resolutions: 107 FPS at 1080p, 86 FPS at 1440p, and 64 FPS at 4K. The percentage drop from 1080p to 1440p is nearly 20%, and from 1440p to 4K is another 25%. This suggests that at these higher presets, the load is more balanced, but the GPU is still the dominant factor. The fact that 1080p Ultra (107 FPS) is only slightly higher than 4K High (67 FPS) is telling. It implies that the CPU is capable of feeding the GPU frames up to a certain point, but the sheer pixel throughput required at 4K overwhelms the GPU, making resolution the primary bottleneck.

The data shows that the system is not entirely CPU-bound even at 1080p, as the difference between Low (192 FPS) and Ultra (107 FPS) at that resolution is massive—an 85 FPS gap. This indicates that the visual fidelity settings have a profound impact on the GPU load. In contrast, the gap between 1080p Ultra (107 FPS) and 1440p Ultra (86 FPS) is 21 FPS, which is smaller than the gap between 1080p Low and 1440p Low (37 FPS). This suggests that at higher settings, the CPU has more headroom relative to the GPU's workload, but the GPU's performance ceiling is still the defining constraint for achieving 4K performance, especially at 64 FPS on Ultra.

Settings Recommendations

Based on the measured rows, the most practical balance between visual quality and performance is found at the High preset. At 1440p High, the system delivers a solid 91 FPS average, which is smooth for a flight simulator. The jump from Medium to High at 1440p is a 24% performance cost (from 120 FPS to 91 FPS), but the visual fidelity improvement in a game like this is typically significant. For users with high-refresh-rate 1440p monitors, High is the sweet spot, as it stays well above the 60 FPS threshold and provides a responsive experience.

For 4K users, the data suggests that High is the maximum reasonable setting. The High preset at 4K produces 67 FPS, which is playable and smooth. Pushing to Ultra at 4K drops the average to 64 FPS, which is a marginal 4.5% decrease. While this is technically playable, the performance headroom is minimal. The Low preset at 4K yields 114 FPS, which is surprisingly high, but the visual compromise is likely too severe for a game that relies on scenery detail. Therefore, 4K High is the recommended target, as it provides a comfortable margin above 60 FPS without sacrificing the core visual experience.

At 1080p, the system is so powerful that even Ultra settings produce 107 FPS. This makes 1080p a non-issue for this configuration; users can select Ultra without concern. The Medium preset at 1080p (149 FPS) and High (112 FPS) are overkill for most displays, but they do offer headroom for users with 240Hz monitors. The real takeaway is that the CPU and GPU combination is potent enough to handle 1080p Ultra with ease, making the resolution choice the primary factor in determining which preset to use. For the best experience on a standard 60Hz 4K display, High is the clear winner.

GPU Role

The AMD Radeon RX 7900 XTX is a high-end GPU with 24 GB of GDDR6 memory on a 384-bit bus, providing a bandwidth of 960.0 GB/s. This memory configuration is critical for Microsoft Flight Simulator, which is known for loading vast amounts of terrain and texture data. The data shows that the GPU is the primary scaling factor when moving between resolutions. The 24 GB frame buffer ensures that there is no VRAM capacity limitation at any of the tested settings, allowing the GPU to focus purely on rendering speed rather than swapping data.

The GPU's clock speeds—base 1929 MHz, game 2365 MHz, and boost 2498 MHz—indicate a high-performance part. The measured FPS at 4K Ultra (64 FPS) versus 4K Low (114 FPS) highlights how the GPU's shading units and ROPs are taxed by the higher preset. The card's FP32 performance of 61.39 TFLOPS and texture rate of 959.2 GTexel/s are substantial, yet the simulator's demands at 4K Ultra are enough to bring the average down to 64 FPS. This suggests that the game is pushing the limits of even this flagship GPU when all settings are maxed out.

Interestingly, the GPU's benchmark percentile (64th) and average benchmark score (19410) are not top-tier, but the measured in-game performance is strong. This is because Microsoft Flight Simulator's workload is different from synthetic benchmarks. The nearest rivals by average benchmark score include the NVIDIA GeForce GTX 1060 3 GB (deltaPct 0.4) and NVIDIA TITAN Xp (deltaPct 1.2), but these comparisons are misleading for gaming; the RX 7900 XTX's 24 GB VRAM and modern architecture provide a significant advantage in this specific title. The data confirms that the GPU is the dominant force in determining FPS at higher resolutions, as the CPU cannot compensate for the GPU's rendering limits.

FAQ

Q: Can I run Microsoft Flight Simulator at 4K with this CPU/GPU combo?

A: Yes, the data shows playable frame rates at 4K. The High preset averages 67 FPS, and the Ultra preset averages 64 FPS. Both are above the 60 FPS threshold for smooth gameplay, making 4K viable.

Q: What is the best preset for 1440p to get high refresh rates?

A: The High preset at 1440p yields 91 FPS, which is suitable for high-refresh-rate monitors. If you need even higher FPS, the Medium preset provides 120 FPS, but the visual compromise may not be worth it.

Q: How much performance do I lose by switching from 1080p to 4K at the same settings?

A: At Low settings, the drop is from 192 FPS (1080p) to 114 FPS (4K), a 41% reduction. At Ultra settings, the drop is from 107 FPS (1080p) to 64 FPS (4K), a 40% reduction. The scaling is consistent.

Q: Is the 24 GB VRAM on the RX 7900 XTX necessary for this game?

A: The 24 GB frame buffer ensures that VRAM is not a bottleneck at any resolution or preset tested. This allows the GPU to maintain consistent performance without stuttering from memory overflow, which is crucial for a game that streams large scenery areas.

Q: Why is the 1080p Ultra FPS (107) not much higher than 4K High FPS (67)?

A: This indicates that the CPU is capable of delivering a high frame rate, but the GPU's workload at 4K is significantly higher. The gap narrows because the CPU has more headroom relative to the GPU's pixel-pushing limits at higher resolutions.

Q: What is the minimum FPS observed in the data?

A: The only recorded minimum FPS values are for the Medium preset: 127 FPS at 1080p, 102 FPS at 1440p, and 76 FPS at 4K. These indicate that even the worst-case frames are above playable thresholds.

CPU Role

The AMD Ryzen 5 7400F is a 6-core, 12-thread processor based on the Zen 4 architecture, with a base clock of 3.70 GHz and a boost clock of 4.70 GHz. Its performance in synthetic benchmarks is solid, with a Cinebench R23 multi-core score of 21765 and a single-core score of 3072. The CPU's percentile rank of 83rd places it above average, and its average benchmark score of 32750 is nearly identical to its nearest rivals, such as the Intel Core i5-14600T (deltaPct 0.1). This suggests that the CPU is a balanced performer for its class.

In Microsoft Flight Simulator, the CPU's role is less about raw multi-core power and more about single-thread performance and the ability to feed the GPU. The data shows that at 1080p Low, the system hits 192 FPS, which is a high frame rate that indicates the CPU is not a bottleneck at this setting. However, at 1080p Ultra, the FPS drops to 107, which is a 44% decrease. This is primarily a GPU limitation, but the CPU's boost clock of 4.70 GHz ensures that it can keep up with the game's physics and simulation threads even at lower resolutions.

The CPU's 32 MB of shared L3 cache and dual-channel DDR5 memory support (83.2 GB/s bandwidth) are adequate for the simulator's data streaming needs. The data does not show a scenario where the CPU is the limiting factor, as the FPS scales consistently with resolution and settings. Even at 4K Ultra (64 FPS), the CPU is not the primary constraint; the GPU is. This indicates that the Ryzen 5 7400F provides sufficient headroom for the RX 7900 XTX, making it a well-matched pairing for this game. The CPU's multi-threaded performance, evidenced by a PassMark multi-thread score of 25645, ensures that background tasks and the simulator's complex calculations do not cause frame drops.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of performance across all combinations of resolution and settings. At 1920x1080, the system delivers the highest frame rates. Low settings produce an average of 192 FPS, Medium 149 FPS (with a min of 127 and max of 172), High 112 FPS, and Ultra 107 FPS. This shows a clear progression where each preset increase reduces performance, but even Ultra remains well above 100 FPS.

At 2560x1440, the performance scales down proportionally. Low averages 155 FPS, Medium 120 FPS (min 102, max 138), High 91 FPS, and Ultra 86 FPS. The gap between High and Ultra is narrow (5 FPS), suggesting that the Ultra preset adds extra effects that are not heavily taxing the GPU at this resolution. The Medium preset's minimum of 102 FPS indicates that the system maintains smooth performance even in demanding scenes.

At 3840x2160, the system still holds playable frame rates. Low averages 114 FPS, Medium 89 FPS (min 76, max 102), High 67 FPS, and Ultra 64 FPS. The 4K Ultra result is the lowest average in the entire dataset, but it remains above 60 FPS. The Medium preset at 4K shows a minimum of 76 FPS, which is a solid result for a simulator known for its heavy load. The data confirms that this configuration is capable of handling 4K, but users should expect to use High settings for the best balance of visuals and performance, as the jump from High to Ultra at 4K only yields a 3 FPS difference, which is negligible but comes with a slight visual improvement.