Microsoft Flight Simulator

How This Combo Ranks

The AMD Ryzen 9 5900X paired with the AMD Radeon RX 7900 XT secures the 372nd position out of 1795 tested combinations in Microsoft Flight Simulator. This places the combo comfortably within the top 21% of all tested systems, a strong showing for a flight simulator that is notoriously demanding on both processor and graphics hardware. The rank reflects a balanced pairing where neither component acts as a severe bottleneck, though the data suggests the GPU carries more of the performance load at higher resolutions.

Benchmark results indicate that this combination is positioned to deliver high frame rates across most settings, but it is not at the absolute apex of performance. The Ryzen 9 5900X sits at the 90th percentile among all CPUs, while the RX 7900 XT is at the 82nd percentile among all GPUs. When considering the composite rank, the system's overall standing is slightly below what the CPU percentile alone might suggest, implying that the graphics card's relative position tempers the final outcome. Still, a rank of 372 out of 1795 means this setup outperforms the vast majority of configurations tested, making it a very capable platform for this title.

The data shows a clear tiering in performance based on resolution and settings. At 1920x1080, the combo achieves its highest raw frame rates, with the Ultra preset still delivering an average of 97.9 FPS. Moving to 2560x1440, the Ultra preset drops to 80.3 FPS, and at 3840x2160, it falls to 55.3 FPS. These numbers demonstrate that the combo is highly playable at 1440p, but at 4K Ultra, it hovers near the edge of what might be considered smooth for some users. The overall rank suggests this is a high-tier combination, but one that requires settings management for 4K gaming.

GPU Role

The AMD Radeon RX 7900 XT is the primary driver of frame rates in this configuration, particularly at higher resolutions. It features 20 GB of GDDR6 memory on a 320-bit bus, providing a bandwidth of 800.0 GB/s. This large framebuffer is particularly beneficial for Microsoft Flight Simulator, which loads extensive textures for terrain, aircraft, and scenery. The memory clock is rated at 2500 MHz with 20 Gbps effective speed, and the boost clock reaches 2394 MHz, with a game clock of 2025 MHz and a base clock of 1387 MHz. These clocks allow the GPU to sustain high throughput when rendering complex scenes.

The GPU's benchmark scores reinforce its capability. It achieves a PassMark G3D score of 29009 and a 3DMark Steel Nomad score of 5623. In the nearest rival comparison, the RX 7900 XT is nearly identical to the NVIDIA GeForce RTX 5080 Mobile, with a delta of 0%, and it is slightly ahead of the NVIDIA CMP 70HX by 0.3%. It trails the NVIDIA GeForce MX570 by 0.4% and leads the NVIDIA GeForce RTX 4080 Mobile by 0.6%. These small deltas indicate that the GPU's raw compute power is competitive with a range of high-end options.

In Microsoft Flight Simulator, the GPU's role becomes more pronounced as resolution increases. At 3840x2160, the difference between Low and Ultra settings is 50.1 FPS (105.4 vs 55.3), a 90% increase in performance when dropping to the lowest settings. This sensitivity to settings highlights that the GPU's pixel throughput and memory bandwidth are key constraints at 4K. At 1920x1080, the gap narrows to 78.2 FPS (176.1 vs 97.9), showing that the CPU starts to play a larger role at lower resolutions. The GPU's FP32 performance of 51.48 TFLOPS and its 192 ROPs contribute to its ability to handle the draw calls and shading required by the simulator.

CPU Role

The AMD Ryzen 9 5900X provides the processing backbone for this combo, with 12 cores and 24 threads based on the Zen 3 architecture. Its base clock is 3.70 GHz and it boosts up to 4.80 GHz, with a total L3 cache of 64 MB. These specifications are well-suited for a flight simulator that must manage complex flight models, AI traffic, and weather systems alongside the graphics workload. The CPU's benchmark scores are strong: it achieves a Cinebench R23 multicore score of 33150 and a single-core score of 4680, underscoring its ability to handle both multi-threaded and single-threaded tasks.

The CPU's percentile ranking of 90 places it above most processors on the market. Compared to its nearest rivals, the data shows it is 0.2% ahead of the AMD EPYC 4245P, 0.9% ahead of the Intel Core i7-13700F, but 0.7% behind the AMD Ryzen 7 PRO 8845HS and 1% behind the Intel Core i7-13700. These tight margins indicate that the 5900X is competitive with modern mid-range and high-end CPUs, though not a class leader. Its memory support for DDR4 with dual-channel bandwidth of 51.2 GB/s is adequate for the simulator's needs, though it is not as fast as newer DDR5 platforms.

In Microsoft Flight Simulator, the CPU's influence is most evident at lower resolutions. At 1920x1080, the frame rates are significantly higher than at 4K, with the Low preset reaching 176.1 FPS. This suggests that the CPU can feed the GPU with enough data to sustain high frame rates when the GPU is not overloaded. However, the gap between Low and Ultra at 1080p is 78.2 FPS, which is smaller than the 90 FPS gap at 4K. This indicates that while the CPU is capable, the GPU becomes the limiting factor as resolution increases. The CPU's high single-thread performance, as evidenced by its PassMark single-thread score of 3469, is crucial for the simulator's main thread, which handles much of the game logic.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of performance across three resolutions and four settings presets. At 3840x2160 (4K), the combo delivers an average of 62.6 FPS on High settings, 81.1 FPS on Medium, and 105.4 FPS on Low. The Ultra preset, which is the most demanding, yields 55.3 FPS. This shows that at 4K, the system is playable on High settings, but for a smoother experience, users may need to opt for Medium or lower.

At 2560x1440 (1440p), the performance improves notably. High settings achieve 81.4 FPS, Medium reaches 109.9 FPS, and Low soars to 143.7 FPS. The Ultra preset delivers 80.3 FPS, which is very close to the High preset's result. This suggests that the difference between High and Ultra at this resolution is minimal, and users can likely enable Ultra without a significant performance penalty. The data shows that 1440p is the sweet spot for this hardware, with all presets above the 60 FPS threshold.

At 1920x1080 (1080p), the combo is clearly overqualified for most settings. Low settings hit 176.1 FPS, Medium reaches 135.9 FPS, and High achieves 102.1 FPS. Even the Ultra preset maintains a solid 97.9 FPS, which is close to the High preset's performance. The diminishing returns between resolutions are clear: moving from 1080p to 1440p reduces frame rates by roughly 30% across presets, while moving from 1440p to 4K reduces them by another 35-40%. This pattern confirms that the GPU is the primary scaling factor, with the CPU providing enough headroom to avoid major bottlenecks.

FAQ

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

A: The data indicates that 2560x1440 offers the most balanced experience. At this resolution, the Ultra preset achieves 80.3 FPS, which is above the 60 FPS threshold for smooth gameplay. Higher resolutions like 4K require dropping to High or Medium settings to maintain similar frame rates.

Q: How does the AMD Ryzen 9 5900X compare to its closest rival, the Intel Core i7-13700?

A: The benchmark data shows the Ryzen 9 5900X is 1% behind the Intel Core i7-13700 in average benchmark score. This places the two processors very close in performance, with the Intel chip holding a slight edge in overall compute tasks.

Q: Is the RX 7900 XT's 20 GB of VRAM sufficient for this game?

A: Yes, the 20 GB of GDDR6 memory is more than adequate for Microsoft Flight Simulator. The game loads high-resolution textures for terrain and aircraft, and the large framebuffer allows for smooth performance at Ultra settings without memory-related stuttering.

Q: What frame rate can be expected at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the combo delivers an average of 55.3 FPS. This is below the 60 FPS mark, so users may need to adjust settings to High or Medium to achieve a smoother experience.

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

A: The combo ranks 372nd out of 1795 tested combinations, placing it in the top 21% of all systems. This is a strong result, indicating that the hardware is well-matched for this simulator.

Q: Does the CPU or GPU have a larger impact on performance at 1080p?

A: At 1920x1080, the CPU has a more significant role, as frame rates are higher and the GPU is not as stressed. The difference between Low and Ultra is 78.2 FPS, which is smaller than at 4K, suggesting the CPU's single-thread performance is a key factor in achieving high frame rates at this resolution.