Microsoft Flight Simulator

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 7 9850X3D is a desktop processor built on the Zen 5 architecture with the Granite Ridge codename. It has 8 cores and 16 threads, with a base clock of 4.70 GHz and a boost clock of 5.60 GHz. The processor carries 96 MB of shared L3 cache, which is substantial for a flight simulator that must constantly stream terrain, aircraft models, and weather data. The 120W TDP indicates a high-performance part, and it is unlocked for overclocking, which can help in CPU-bound scenarios.

In Microsoft Flight Simulator, the CPU handles physics calculations, flight dynamics, AI traffic, and the complex job of feeding draw calls to the GPU. The combination of high single-thread performance (evidenced by a Cinebench R23 single-core score of 2228) and generous L3 cache is well-suited for this workload. The processor ranks in the 92nd percentile among all CPUs, indicating it is a top-tier part. Its average benchmark score of 58386 places it in close competition with the Intel Xeon Platinum 8260M (58323, a 0.1% delta) and the Intel Core i9-14900 (58115, a 0.5% delta). It trails the Intel Xeon w5-2545 (58504) by 0.2% and the AMD Ryzen AI 9 HX 470 (58826) by 0.7%. This means the CPU is theoretically capable of feeding a much more powerful GPU than the RX 580, but in this specific pairing, the GPU becomes the limiting factor.

The measured FPS data shows that even at 1080p Low, the average frame rate is only 54 FPS. This is a surprisingly low result for such a strong CPU, which confirms that the graphics card is severely bottlenecking the system. The CPU is not the constraint here; it is waiting on the GPU to finish rendering each frame. If the CPU were the bottleneck, we would expect to see much higher frame rates at lower resolutions and settings, where GPU load is minimized.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of the AMD Ryzen 7 9850X3D and the AMD Radeon RX 580 ranks at 2733 out of 2996 tested combos for Microsoft Flight Simulator. This places it in the bottom 9% of all tested systems, which is a very weak showing for a processor that ranks in the 92nd percentile of all CPUs. The disparity between the CPU's individual strength and the combo's poor rank clearly points to the GPU as the performance anchor.

The rank of 2733 means that 263 other combinations performed worse than this pairing in this game. However, it also means that 2732 combinations delivered higher frame rates, including systems with far less capable CPUs but more balanced GPUs. This result is a textbook example of an imbalanced build, where the CPU's potential is left largely unrealized. The data indicates that the RX 580, which ranks in the 53rd percentile among all GPUs, is simply not powerful enough to take advantage of what the Ryzen 7 9850X3D can offer. The combo's position in the bottom decile suggests that users with this pairing are likely to experience stutter and low frame rates, especially in dense urban areas or with heavy weather effects.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data across resolutions reveals a clear pattern of GPU limitation. At 1080p Low, the average is 54 FPS. Moving to 1440p Low drops the average to 43 FPS, a reduction of 20%. At 4K Low, the average falls to 32 FPS, another 26% drop from 1440p. This scaling behavior is typical of a system where the GPU is already at high utilization even at 1080p, so increasing resolution further strains the GPU while the CPU remains underutilized.

Looking at High settings, the trend continues. At 1080p High, the average is 31 FPS. At 1440p High, it drops to 25 FPS (a 19% reduction), and at 4K High, it falls to 19 FPS (a 24% reduction from 1440p). The consistent percentage drops across settings indicate that the GPU is the bottleneck; a CPU bottleneck would show much flatter FPS scaling across resolutions, as the CPU would cap performance regardless of pixel count.

The gap between Low and Ultra settings also informs this analysis. At 1080p, Low yields 54 FPS while Ultra yields 30 FPS, a 44% drop. At 4K, Low yields 32 FPS and Ultra yields 18 FPS, a 44% drop as well. This consistent scaling with settings further confirms that the GPU is the limiting component, as it is fully saturated at every resolution tested. The CPU's massive L3 cache and high clocks are effectively wasted in this configuration because the GPU cannot render frames fast enough to keep the CPU busy.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 1920x1080, the lowest resolution tested, the system achieves an average of 54 FPS at Low settings. This is the highest frame rate recorded for this combo. At Medium settings, the average drops to 42 FPS, with a minimum of 36 FPS and a maximum of 48 FPS. High settings yield an average of 31 FPS. Ultra settings produce an average of 30 FPS, which is only 1 FPS lower than High, suggesting the GPU is already near its performance ceiling at these settings.

At 2560x1440, the frame rates decline further. Low settings average 43 FPS, a 20% drop from the 1080p Low result. Medium settings average 34 FPS, with a minimum of 29 FPS and a maximum of 39 FPS. High settings average 25 FPS. Ultra settings average 24 FPS, which is again very close to the High result, reinforcing that the GPU is saturated.

At 3840x2160, the results are largely unplayable. Low settings average 32 FPS, which is barely interactive. Medium settings average 25 FPS, with a minimum of 21 FPS and a maximum of 29 FPS. High settings average 19 FPS. Ultra settings average 18 FPS, the lowest recorded result. The data shows that 4K gaming is not viable with this GPU, even at Low settings, as the frame rate falls below the 30 FPS threshold commonly considered the minimum for acceptable gameplay.

GPU Role — VRAM, clocks, and how they relate to this game's results

The AMD Radeon RX 580 is an older graphics card based on the Polaris 20 chip, using the GCN 4.0 architecture on a 14 nm process. It has 8 GB of GDDR5 memory on a 256-bit bus, providing a bandwidth of 256.0 GB/s. The GPU has 2304 shading units, 144 texture mapping units, and 32 raster output units. Its base clock is 1257 MHz, with a boost clock of 1340 MHz, and the memory runs at 2000 MHz (8 Gbps effective). The card has a TDP of 185 W and requires a single 8-pin power connector, with a suggested PSU of 450 W.

The RX 580's performance is modest by modern standards. It ranks in the 53rd percentile among all GPUs, with an average benchmark score of 12928. Its closest rivals include the NVIDIA GeForce RTX 3050 Ti Mobile (12940, a -0.1% delta) and the NVIDIA GeForce GTX 1660 SUPER (12986, a -0.4% delta). The card's DirectX 12 benchmark score is 43, which is notably low, and its Passmark G3D score is 8813. These numbers indicate that the GPU is better suited for 1080p gaming at medium settings in modern titles, which aligns with the measured FPS data showing 42 FPS at 1080p Medium.

The 8 GB VRAM is sufficient for Microsoft Flight Simulator at 1080p and 1440p, but at 4K Ultra, the combination of high-resolution textures and the game's massive draw distances likely pushes memory usage to its limits. The measured FPS at 4K Ultra is 18 FPS, which is far below playable. The GPU's compute performance, measured at 3488 in Passmark GPU Compute, is insufficient for the heavy shader work required by the sim at higher resolutions. The card's FP32 performance of 6.175 TFLOPS is a theoretical peak that is rarely achieved in real-world scenarios, and the data shows that even at 1080p Low, the GPU cannot push beyond 54 FPS average, which is a clear sign of its architectural age.

The GPU's DirectX 12 support is listed as 12 (12_0), which is the minimum required for Microsoft Flight Simulator, but the card's GCN architecture is not optimized for modern DX12 workloads, leading to lower than expected performance in this title. The 42.88 GPixel/s pixel rate and 193.0 GTexel/s texture rate further illustrate the card's limitations when handling the detailed terrain and aircraft models in the sim. In summary, the RX 580 is the primary bottleneck in this configuration, and its age and architecture prevent the Ryzen 7 9850X3D from delivering the high frame rates the CPU is capable of producing.

FAQ

Q: Why does this combo rank so low (2733 out of 2996) when the CPU is so powerful?

A: The combination ranks in the bottom 9% because the AMD Radeon RX 580, which ranks in the 53rd percentile among all GPUs, is severely underpowered relative to the Ryzen 7 9850X3D, which ranks in the 92nd percentile. The GPU cannot render frames fast enough to utilize the CPU's capabilities, leaving the CPU idle and the system bottlenecked.

Q: Is 4K gaming possible with this setup in Microsoft Flight Simulator?

A: No. At 3840x2160, the highest average FPS recorded is 32 FPS at Low settings. At Medium settings, the average is 25 FPS, and at Ultra settings, it falls to 18 FPS. These results are below the 30 FPS threshold for acceptable gameplay, making 4K unplayable.

Q: What is the best resolution and settings combination for this system?

A: The data shows that 1920x1080 at Low settings provides the highest average FPS at 54. At 1080p Medium, the average is 42 FPS, which is a reasonable balance between visual quality and performance. Any higher settings or resolutions result in frame rates below 35 FPS.

Q: How does this CPU compare to its nearest rivals in overall benchmark scores?

A: The Ryzen 7 9850X3D has an average benchmark score of 58386. It is 0.1% ahead of the Intel Xeon Platinum 8260M (58323), 0.5% ahead of the Intel Core i9-14900 (58115), 0.2% behind the Intel Xeon w5-2545 (58504), and 0.7% behind the AMD Ryzen AI 9 HX 470 (58826).

Q: Is the GPU's 8 GB VRAM sufficient for this game?

A: At 1080p and 1440p, the 8 GB VRAM appears sufficient, as frame rates are consistent across settings. At 4K, the average FPS drops to 18-32 depending on settings, which suggests that the VRAM capacity, combined with the GPU's limited compute power, is inadequate for the game's high-resolution texture requirements.

Q: What does the FPS scaling between 1080p and 4K indicate about the system's bottleneck?

A: The FPS drops by roughly 20-26% when moving from 1080p to 1440p, and another 24-26% from 1440p to 4K, consistently across all settings. This scaling pattern indicates that the GPU is the limiting component, as a CPU bottleneck would show minimal FPS changes across resolutions.