Microsoft Flight Simulator

The AMD Ryzen 9 5900X paired with the AMD Radeon RX 580 ranks 1653 out of 1795 tested combinations in Microsoft Flight Simulator. This places the combo in the bottom 8% of all tested hardware pairings, a position that reflects the significant imbalance between the two components. The CPU is a high-end part with a 90th percentile standing against all CPUs, while the GPU sits at just the 53rd percentile against all GPUs. This pairing creates a scenario where the processor’s capability is largely wasted in this simulation, as the graphics card becomes the overwhelming bottleneck across nearly every resolution and settings combination. The rank indicates that most other configurations, even those with weaker processors, will deliver higher average frame rates due to having more balanced or stronger graphics hardware.

How This Combo Ranks

The combo’s 1653rd position out of 1795 combos is a decisive verdict on its suitability for Microsoft Flight Simulator. This is not a marginal placement; it places the system in the lowest tier of performance for this title. The data shows that the RX 580’s 53rd percentile GPU standing drags the entire system down, despite the Ryzen 9 5900X’s 90th percentile CPU ranking. In practical terms, this means the vast majority of tested systems—over 92% of them—achieve higher average FPS than this configuration. The delta between the CPU’s high potential and the GPU’s modest capability is stark; benchmark results indicate that the processor is effectively idle waiting on the graphics card in most scenes. While the CPU’s nearest rivals, such as the AMD EPYC 4245P and Intel Core i7-13700F, show near-identical average benchmark scores within a 1% margin, this does nothing to rescue the combo’s in-game ranking because the GPU remains the limiting factor.

CPU Role

The AMD Ryzen 9 5900X is a 12-core, 24-thread processor based on the Zen 3 architecture, codenamed Vermeer. It operates with a base clock of 3.70 GHz and a boost clock of 4.80 GHz, featuring a 64 MB L3 cache. In Microsoft Flight Simulator, the CPU’s role is to handle the complex flight model, weather simulation, and world generation, but its performance here is constrained by the GPU. The CPU’s benchmark scores are impressive: a Cinebench R23 multicore score of 33150 and a single-core score of 4680, with a Geekbench multicore score of 11877. However, the measured FPS data shows that even at 1080p Low settings, where CPU load is typically highest, the system only achieves 55.8 FPS. This is far below what the CPU alone could support, as its Passmark multithread score of 39002 indicates substantial headroom. The 3DMark 16-thread score of 9075 and the max-thread score of 10075 further confirm that the processor is not the limiting component in this pairing. The CPU’s performance is effectively masked by the GPU’s inability to keep up with frame generation requests from the simulation engine.

GPU Role

The AMD Radeon RX 580, based on the Polaris 20 chip with GCN 4.0 architecture, is the clear bottleneck in this configuration. It features 8 GB of GDDR5 memory on a 256-bit bus, providing 256.0 GB/s of bandwidth, with a boost clock of 1340 MHz. The GPU’s raw compute is 6.175 TFLOPS FP32, with a texture rate of 193.0 GTexel/s and a pixel rate of 42.88 GPixel/s. These specifications place it in the lower-midrange of modern GPUs, and its benchmark scores reflect this: a Passmark G3D score of 8813 and a 3DMark Steel Nomad DX12 score of 1005. The GPU’s nearest rivals, including the NVIDIA GeForce GTX 570 and GTX 950, have nearly identical average scores within a 0.1% delta, confirming its position in the performance hierarchy. In Microsoft Flight Simulator, the GPU is responsible for rendering the detailed terrain, aircraft models, and lighting effects. The data shows that at 1080p Ultra, the combo manages only 29.6 FPS, while at 4K Ultra, it drops to 19.1 FPS. These figures indicate that the RX 580’s 8 GB VRAM and 256-bit bus are insufficient for the high-resolution textures and complex shaders used by the simulator, causing the frame rate to crater even at modest settings.

Measured FPS Breakdown

The measured FPS data reveals a consistent pattern across all resolutions and settings. At 1920x1080, the combo achieves 55.8 FPS on Low settings, which is the highest average FPS recorded for this system. This drops to 40.7 FPS on Medium, 31.3 FPS on High, and 29.6 FPS on Ultra. Moving to 2560x1440, the scores are 45.3 FPS on Low, 33.7 FPS on Medium, 24.6 FPS on High, and 25.2 FPS on Ultra. At 3840x2160, the performance degrades further: 34.2 FPS on Low, 22.6 FPS on Medium, and 19.1 FPS on both High and Ultra settings. These numbers show a clear trend: the gap between Low and Medium settings is significant at every resolution, but the difference between High and Ultra is minimal. For example, at 1440p, the drop from Medium to High is 9.1 FPS, while the drop from High to Ultra is only 0.6 FPS. This suggests that the Ultra preset introduces settings that the RX 580 cannot process efficiently, leading to a plateau where frame rates become nearly identical regardless of the graphical fidelity. The data indicates that the system is playable only at 1080p Low, with 55.8 FPS, and becomes increasingly stutter-prone at higher resolutions or settings.

Resolution Scaling

The resolution scaling analysis shows a steep performance decline as pixel count increases, which is a classic sign of a GPU-bound system. From 1080p Low to 4K Low, the FPS drops from 55.8 to 34.2, a reduction of 38.7%. For Medium settings, the drop is from 40.7 FPS at 1080p to 22.6 FPS at 4K, a 44.5% decrease. At High settings, the FPS goes from 31.3 at 1080p to 19.1 at 4K, a 39% reduction. These percentages are relatively consistent across settings, indicating that the GPU’s memory bandwidth and pixel throughput are the limiting factors. If the CPU were the bottleneck, the FPS would remain relatively flat as resolution increases, since the CPU workload is primarily resolution-independent. Instead, the data shows a nearly linear scaling with pixel count, which is characteristic of a graphics card that is saturated at even 1080p. The fact that the combo’s rank is so low, despite the CPU’s high benchmark scores, further confirms that the RX 580 cannot deliver playable frame rates in this simulation at 1440p or above. Even at 1080p, the Ultra preset’s 29.6 FPS is below the threshold for smooth gameplay, making the system suitable only for Low or Medium settings at the lowest resolution.