Microsoft Flight Simulator

Microsoft Flight Simulator is a demanding title, and the pairing of the AMD Ryzen 5 8400F with the AMD Radeon RX 7700 produces a distinct performance profile across resolutions and settings. The measured data reveals a system that is well-balanced for high-refresh 1080p gaming, capable at 1440p, but which requires careful settings management to maintain playability at 4K. The benchmark results indicate that the Radeon RX 7700 is the primary performance limiter as resolution increases, while the Ryzen 5 8400F provides a solid foundation of processing power that rarely bottlenecks the experience.

Resolution Scaling

The FPS data shows a clear and predictable impact as resolution scales from 1920x1080 up to 3840x2160. At the Low preset, the system averages 126 FPS at 1080p, which drops to 102 FPS at 1440p and further to 75 FPS at 4K. This represents a 40.5% decrease in performance from 1080p to 4K at Low settings, indicating that while the frame rate drops significantly, the system retains a playable level of performance even at the highest resolution with minimal graphical demands.

The scaling pattern becomes more pronounced when examining the Medium preset, which is the only setting tier with full min/max FPS data. At 1080p Medium, the average is 98 FPS with a minimum of 84 FPS. Moving to 1440p Medium, the average falls to 79 FPS with a minimum of 67 FPS. At 4K Medium, the average drops to 59 FPS with a minimum of 50 FPS. The progression from 1080p to 1440p yields a 19.4% performance loss, while the jump from 1440p to 4K results in a 25.3% loss. This non-linear scaling suggests that the GPU is becoming increasingly stressed as pixel count grows, with the 4K resolution pushing the Radeon RX 7700 near its limits even at Medium settings.

For the High and Ultra presets, the resolution scaling is even more severe. At High settings, the system delivers 74 FPS at 1080p, 60 FPS at 1440p, and 44 FPS at 4K. The transition from 1440p to 4K at High settings represents a 26.7% drop, while the Ultra preset shows a similar pattern with 70 FPS at 1080p, 57 FPS at 1440p, and 42 FPS at 4K. The fact that Ultra at 4K averages just 42 FPS, barely above the 30 FPS playability threshold, strongly indicates that the GPU is the limiting component at higher resolutions and settings. The data shows that the CPU has ample headroom, as the frame rate scales nearly linearly with GPU load, a classic sign of a GPU-bound scenario at 4K.

CPU Role

The AMD Ryzen 5 8400F is a 6-core, 12-thread processor based on the Zen 4 architecture, built on a 4nm process. It operates with a base clock of 4.20 GHz and a boost clock of 4.70 GHz, and its benchmark results demonstrate strong single-thread and multi-thread capabilities. In Cinebench R23, the processor scores 2943 points in single-core and 20851 points in multi-core tests, while in 3DMark's single-thread test it achieves a score of 951. These results place the CPU in the 77th percentile among all CPUs, with an average benchmark score of 25005.

The CPU's performance in synthetic benchmarks positions it closely against several rivals, with a 0.2% delta from the AMD Ryzen 5 7500F, a 0.3% delta from the Intel Core i7-11850H, and a 0.4% delta from the Intel Core i7-13620H. Its closest rival is the AMD EPYC 9474F, which is 0.4% faster. This tight grouping indicates that the Ryzen 5 8400F delivers processing power consistent with mainstream desktop and high-end mobile parts, making it more than sufficient for the demands of Microsoft Flight Simulator.

In the context of this game, the CPU's role is evident in the 1080p Low preset results, where the system achieves 126 FPS. This high frame rate, which is nearly double the 4K Low result of 75 FPS, suggests that the CPU is capable of feeding the GPU with enough data to saturate it at lower resolutions. However, the 3DMark 2-thread score of 1874 and the Passmark single-thread score of 3685 indicate that the CPU's performance is not the limiting factor in this configuration. The game's reliance on CPU for flight model physics and scenery generation is well-served by the 6-core/12-thread setup, but the measured FPS data shows that the GPU is the bottleneck at higher resolutions, as the CPU's processing power remains relatively constant while frame rates drop.

GPU Role

The AMD Radeon RX 7700 is the graphics powerhouse in this pairing, featuring 16 GB of GDDR6 memory on a 256-bit bus, delivering a bandwidth of 624.1 GB/s. The GPU is based on the RDNA 3.0 architecture with a base clock of 1900 MHz, a game clock of 2041 MHz, and a boost clock of 2459 MHz. Its 25.18 TFLOPS of FP32 performance and 96 ROPs are complemented by 2560 shading units and 160 TMUs, making it a capable 1440p-class graphics card with 16 GB of VRAM that provides ample headroom for high-resolution textures.

The GPU's benchmark results show a Passmark G3D score of 20974, placing it in the 58th percentile among all GPUs. Its average benchmark score of 15852 is nearly identical to the AMD Radeon R9 370X (0.1% faster), and it trails the AMD Radeon RX 9060 by 1% and the NVIDIA GeForce RTX 3060 Ti by 1.7%, while leading the AMD Radeon Pro W5500 by 1.1%. These comparisons illustrate that the RX 7700 is a mid-range performer, and the measured FPS data in Microsoft Flight Simulator reflects this positioning.

The GPU's role as the primary performance limiter is most evident in the 4K results. At 4K Ultra, the system averages 42 FPS, which is a 40% drop from the 1080p Ultra average of 70 FPS. This substantial performance degradation at 4K is attributed to the GPU's pixel throughput limits, despite its large 16 GB VRAM buffer. The GPU clocks and memory bandwidth are sufficient to handle the game's demands at 1080p and 1440p, but at 4K, the sheer number of pixels overwhelms the rendering pipeline. The fact that the 4K Medium preset (59 FPS) is only slightly faster than the 1440p High preset (60 FPS) further confirms that the GPU is the limiting factor, as the GPU must work significantly harder to fill the additional pixels at 4K.

Measured FPS Breakdown

The measured FPS data provides a comprehensive picture of the system's performance across all resolution and settings combinations. At 1920x1080, the system delivers excellent performance across all presets: Low averages 126 FPS, Medium averages 98 FPS with a minimum of 84 FPS and maximum of 113 FPS, High averages 74 FPS, and Ultra averages 70 FPS. The 1080p results show a smooth scaling from Ultra to Low, with the system never dropping below 70 FPS even at maximum settings, indicating a comfortable gaming experience for high-refresh-rate monitors.

At 2560x1440, performance remains strong but begins to show the GPU's limitations. The Low preset delivers 102 FPS, which is still very high, while Medium averages 79 FPS with a minimum of 67 FPS and maximum of 91 FPS. High settings yield 60 FPS, and Ultra drops to 57 FPS. The 1440p results demonstrate that the system can handle the resolution well at Medium settings and below, but High and Ultra presets dip into the 57-60 FPS range, which may require adaptive sync technology for a smooth experience on 60Hz displays.

At 3840x2160, the system struggles to maintain high frame rates. The Low preset averages 75 FPS, which is playable, but Medium drops to 59 FPS with a minimum of 50 FPS and maximum of 67 FPS. High settings average 44 FPS, and Ultra averages 42 FPS. The 4K results show a clear pattern: the system is only suitable for 4K gaming at Low or Medium settings, and even then, the frame rates are borderline for smooth gameplay. The minimum FPS of 50 at 4K Medium indicates that there are occasional dips that could be noticeable during complex flight scenes.

FAQ

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

A: The data shows that 1920x1080 is the sweet spot for this combination. At 1080p, the system delivers over 70 FPS at all settings presets, with the Low preset reaching 126 FPS. At 1440p, performance is acceptable at Medium settings (79 FPS) but drops to 60 FPS at High and 57 FPS at Ultra, making 1080p the recommended resolution for consistent high frame rates.

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

A: The measurements indicate that 4K gaming is only feasible at Low or Medium settings. At 4K Low, the system averages 75 FPS, and at 4K Medium, it averages 59 FPS. However, at High settings, the average drops to 44 FPS, and at Ultra, it falls to 42 FPS, which is below the 60 FPS target for smooth gameplay.

Q: How does the Ryzen 5 8400F compare to its closest rival in terms of CPU performance?

A: The Ryzen 5 8400F has an average benchmark score of 25005, which is 0.2% higher than the AMD Ryzen 5 7500F, 0.3% higher than the Intel Core i7-11850H, and 0.4% higher than the Intel Core i7-13620H. It is 0.4% slower than the AMD EPYC 9474F, making it extremely competitive with its nearest rivals.

Q: What is the GPU's memory configuration and how does it affect the game?

A: The Radeon RX 7700 features 16 GB of GDDR6 memory on a 256-bit bus with a bandwidth of 624.1 GB/s. This large memory capacity is more than sufficient for Microsoft Flight Simulator's high-resolution textures, as the game's performance drops are primarily due to the GPU's rendering capabilities rather than VRAM limitations, as evidenced by the significant FPS drops at 4K.

Q: Is the CPU or GPU the bottleneck in this system for Microsoft Flight Simulator?

A: The benchmark results clearly indicate that the GPU is the limiting component at higher resolutions. At 1080p, the system achieves high frame rates (126 FPS at Low) that demonstrate the CPU's ability to keep up, but at 4K, the frame rates drop significantly (75 FPS at Low to 42 FPS at Ultra), which is a classic sign of GPU-bound performance.

Q: What are the minimum FPS figures for the Medium preset across resolutions?

A: The data shows that at 1080p Medium, the minimum FPS is 84, at 1440p Medium, the minimum is 67, and at 4K Medium, the minimum is 50. These minimum FPS values are crucial for understanding frame time consistency, and they indicate that the system can maintain playable performance even during demanding scenes at 1080p and 1440p.

Settings Recommendations

Based on the measured FPS data, the optimal settings preset depends heavily on the target resolution and desired frame rate. For 1920x1080, the Ultra preset delivers an average of 70 FPS, which is suitable for most monitors, and the High preset provides 74 FPS, offering a slight performance boost without a significant visual compromise. The Medium preset at 1080p, with an average of 98 FPS and a minimum of 84 FPS, is the best choice for gamers with high-refresh-rate (144Hz) monitors, as it ensures frame rates stay well above 80 FPS even in the most demanding scenes.

At 2560x1440, the Medium preset is the recommended choice, delivering an average of 79 FPS with a minimum of 67 FPS. This provides a smooth experience on 60Hz displays and is also playable on 144Hz monitors, though frame rates may occasionally dip below the refresh rate. The High preset at 1440p, averaging 60 FPS, is acceptable for 60Hz displays but may show stuttering on higher refresh rate panels. The Ultra preset, at 57 FPS, is playable but leaves little headroom for complex scenes, making it a less ideal choice for competitive or smooth flight simulation.

For 3840x2160, the Low preset is the only setting that provides a consistently smooth experience, averaging 75 FPS. The Medium preset, at 59 FPS with a minimum of 50 FPS, is playable but may exhibit noticeable frame drops during busy airport or city flyovers. High and Ultra presets at 4K, averaging 44 FPS and 42 FPS respectively, are not recommended for a comfortable gaming experience, as they fall below the 60 FPS threshold and approach the 30 FPS minimum for playability. Users prioritizing visual fidelity at 4K should consider the Medium preset as the best balance, while those seeking maximum frame rates should stick to Low.