Microsoft Flight Simulator

Microsoft Flight Simulator is a demanding title that stresses both the CPU and GPU heavily, and the measured data for the Intel Core i5-12400 and AMD Radeon RX 7800 XT combination reveals a complex interplay between resolution, graphical settings, and component limits. The benchmark results show a system that is capable of high frame rates at lower resolutions but begins to show its constraints as the graphical load increases, making the choice of settings and resolution critical for the best experience.

Resolution Scaling

The FPS data shows a clear and predictable trend: as resolution increases from 1920x1080 to 3840x2160, average frame rates drop significantly across all settings presets. At the Low preset, the system delivers 149 FPS at 1080p, which falls to 120 FPS at 1440p, and then to 88 FPS at 4K. This represents a 41% drop from 1080p to 4K at Low settings. For the High preset, the scaling is similar, with 87 FPS at 1080p dropping to 70 FPS at 1440p and then to 52 FPS at 4K, a 40% reduction. This pattern indicates that the GPU is the primary scaling factor as resolution climbs.

However, the shape of the scaling curve is informative. The drop from 1080p to 1440p is relatively modest, but the jump from 1440p to 4K is more severe. For instance, at Medium settings, the frame rate goes from 116 FPS at 1080p to 93 FPS at 1440p (a 20% drop), but then falls to 69 FPS at 4K (a further 26% drop). This suggests that at 4K, the game is becoming heavily pixel-bound, and the RX 7800 XT's 16 GB of GDDR6 memory and 624.1 GB/s of bandwidth are being taxed by the sheer volume of data required to render the detailed terrain and aircraft models at that resolution.

The data implies that at 1080p and 1440p, the system is not solely GPU-limited. The relatively small performance gap between the Low and Ultra presets at these resolutions is telling. At 1080p, the difference between Low and Ultra is 66 FPS (149 vs. 83), while at 4K, the difference is only 39 FPS (88 vs. 49). This narrowing gap at higher resolutions is a classic sign of a GPU bottleneck. At 1080p, the CPU is likely capable of feeding frames faster than the GPU can render them when settings are low, but as resolution increases, the GPU becomes the clear limiting factor, reducing the impact of CPU-intensive settings changes.

CPU Role

The Intel Core i5-12400 is a 6-core, 12-thread processor with a base clock of 2.50 GHz and a boost clock of 4.40 GHz. Its benchmark scores, such as a Cinebench R23 multi-core score of 15989 and a single-core score of 2257, place it in the 72nd percentile of all CPUs. In the context of Microsoft Flight Simulator, which is known for its heavy single-threaded simulation logic, the single-core performance is particularly relevant. The 3DMark single-thread score of 910 suggests a strong foundation for the game's primary thread.

The data from the measured FPS, especially at 1080p, suggests that the CPU is holding its own. At the Low preset with 1080p, the system achieves 149 FPS, which is a very high frame rate that indicates the CPU is not significantly bottlenecking the GPU in this scenario. However, the performance difference between the Low and Ultra presets at 1080p is substantial (66 FPS), which is largely due to the increased GPU load from higher graphical fidelity. The fact that the CPU can push 149 FPS at Low settings shows it has enough headroom to avoid being the primary limiter in less demanding scenes.

The CPU's 18 MB of shared L3 cache and support for DDR4 and DDR5 memory provide a solid platform for the game's data streaming needs. While the data does not show a specific CPU bottleneck, the benchmarks indicate that the i5-12400 is a capable partner for the RX 7800 XT. The close proximity of its average benchmark score (18683) to rivals like the AMD EPYC 7643 (18697, -0.1%) and Intel Core i7-1355U (18730, -0.3%) shows it is in a competitive performance tier, though the data cannot directly attribute FPS differences to the CPU alone.

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 High preset delivers an average of 87 FPS, which is smooth for a flight simulator. The Ultra preset at 87 FPS is only slightly lower at 83 FPS, but the Medium preset offers a significant jump to 116 FPS. For gamers prioritizing high refresh rates, the Medium preset provides the best balance, nearly hitting 120 FPS while still offering a substantial visual upgrade over Low. The Low preset at 149 FPS is excellent for competitive or high-refresh displays but sacrifices visual quality.

At 2560x1440, the High preset yields 70 FPS, which is playable but not ideal for all users. The Medium preset is the sweet spot, delivering 93 FPS with a minimum of 79 FPS, ensuring a smoother experience. Ultra drops to 67 FPS, which may be acceptable for slower-paced flight but is less forgiving during complex maneuvers. The Low preset at 120 FPS is the best option for maximum smoothness, but the visual compromise is significant. For most users, the Medium preset at 1440p appears to be the recommended choice, as it provides a high frame rate without the steep visual penalty of Low.

For 3840x2160, the data shows that only the Low preset can achieve a high frame rate, at 88 FPS. The Medium preset drops to 69 FPS, which is a more typical target for a simulator, and High falls to 52 FPS. Ultra is the most demanding, at 49 FPS, which is borderline for smooth gameplay. At 4K, the Medium preset offers the best experience per the measured data, providing a 69 FPS average with a minimum of 59 FPS, which is a reasonable baseline. The High preset is a viable alternative for those who prioritize visuals over frame rate, but users should expect noticeable dips below 60 FPS.

How This Combo Ranks

The combination of the Intel Core i5-12400 and AMD Radeon RX 7800 XT ranks 1236 out of 3714 tested combos in Microsoft Flight Simulator. This places it in the 67th percentile of all systems tested, meaning it outperforms the majority of configurations. This is a strong result, indicating that this pairing is well-balanced for this specific game. The rank suggests that while it is not a top-tier or extreme-performance setup, it sits comfortably in the upper-middle tier, providing a solid experience for most players.

The rank is a holistic measure that accounts for both CPU and GPU performance in the context of the game. Given that the RX 7800 XT is a high-end GPU with 16 GB of VRAM and a 256-bit memory bus, and the i5-12400 is a solid mid-range CPU, the combined result is a system that can handle the game at high settings across various resolutions. The fact that it ranks higher than 67% of all tested combos confirms that there are no major bottlenecks causing severe underperformance. The data suggests that users with this combo can expect a reliable and consistent experience, with the primary variable being the resolution and settings choices as detailed earlier.

FAQ

Q: What is the average FPS at 1080p with Medium settings?

A: The measured average FPS at 1920x1080 with Medium settings is 116 FPS, with a minimum of 98 FPS and a maximum of 133 FPS.

Q: Can this system handle 4K Ultra settings?

A: Yes, but just barely. The average FPS at 3840x2160 with Ultra settings is 49 FPS, which is below the standard 60 FPS target for smooth gameplay.

Q: What settings preset provides the highest frame rate at 1440p?

A: The Low preset provides the highest average FPS at 2560x1440, achieving 120 FPS. The Medium preset is the next best option, delivering 93 FPS.

Q: How does the RX 7800 XT's VRAM influence performance?

A: The GPU has 16 GB of GDDR6 memory with a bandwidth of 624.1 GB/s. The data shows that at 4K, frame rates drop significantly, indicating that the memory subsystem is being heavily utilized, but the 16 GB capacity is sufficient to avoid memory-related stutters at the tested settings.

Q: Is the CPU or GPU the main bottleneck at 1080p?

A: The data suggests the GPU becomes the primary limiter as settings increase. At Low settings, the system hits 149 FPS, indicating the CPU is not a major issue. The performance gap between Low and Ultra at 1080p is large, which points to the GPU being the main factor in visual settings.

Q: What is the rank of this CPU and GPU combo in the game?

A: The combo ranks 1236 out of 3714 tested combinations, placing it in the top 67% of all systems, which indicates a well-balanced setup.

Measured FPS Breakdown

The measured FPS data provides a comprehensive look at performance across three resolutions and four settings presets. At 1920x1080, the system is highly capable, starting at 149 FPS on Low, dropping to 116 FPS on Medium, 87 FPS on High, and 83 FPS on Ultra. The minimum FPS is only recorded for the Medium preset, which shows a floor of 98 FPS, indicating stable performance.

Moving to 2560x1440, the average frame rates are 120 FPS on Low, 93 FPS on Medium, 70 FPS on High, and 67 FPS on Ultra. The Medium preset shows a minimum of 79 FPS and a maximum of 107 FPS, suggesting that while the average is high, there are some fluctuations. The High and Ultra presets do not have recorded minimums, but the averages indicate a playable experience.

At 3840x2160, the performance drops are more pronounced. The Low preset averages 88 FPS, Medium averages 69 FPS with a minimum of 59 FPS, High averages 52 FPS, and Ultra averages 49 FPS. The data shows a clear trend where the game becomes increasingly demanding at 4K, with only the Low and Medium presets maintaining averages above 60 FPS. The Medium preset's minimum of 59 FPS is close to the 60 FPS target, indicating that it is the most demanding setting that can still provide a mostly smooth experience at this resolution.

GPU Role

The AMD Radeon RX 7800 XT is a powerful graphics card based on the RDNA 3.0 architecture, featuring 3840 shading units, 240 TMUs, and 96 ROPs. Its boost clock of 2430 MHz and game clock of 2124 MHz allow it to deliver substantial compute performance, as evidenced by its Passmark G3D score of 24176. The GPU's 16 GB of GDDR6 memory on a 256-bit bus provides 624.1 GB/s of bandwidth, which is crucial for handling the high-resolution textures and detailed geometry in Microsoft Flight Simulator.

The GPU's role as the primary scaling factor is evident from the resolution scaling analysis. As the resolution increases, the frame rates drop proportionally, which is a classic sign of GPU-bound performance. The card's 37.32 TFLOPS of FP32 performance is sufficient for the game's rendering workload, but the data shows that at 4K Ultra, it struggles to maintain high frame rates, hitting 49 FPS. This indicates that the game is very demanding on the GPU's pixel and texture processing capabilities at this setting.

The GPU's percentile rank of 51 against all GPUs is interesting, as it suggests that while the card is powerful, it is not in the top tier of all graphics cards. However, its average benchmark score of 11627 is closely matched with rivals like the NVIDIA GeForce GTX 1660 (11680, -0.5%) and AMD Radeon Pro 5500M (11528, 0.9%). This indicates that in synthetic benchmarks, the card performs as expected, but its real-world performance in Flight Simulator is more dependent on the specific workload and settings. The data confirms that the GPU is a capable component for this game, but users should be mindful of the settings presets at higher resolutions to achieve their desired frame rates.