Microsoft Flight Simulator

Microsoft Flight Simulator pairs the AMD Ryzen 9 7900X with the AMD Radeon RX 6800 XT in a configuration that demonstrates clear performance scaling across resolution and settings presets. The measured data shows a system that remains fluid at 1080p, becomes more demanding at 1440p, and requires careful settings management at 4K to maintain playable frame rates. The following analysis breaks down the benchmark results, component roles, and optimal configurations based solely on the provided measurements.

Resolution Scaling

The measured FPS data reveals a predictable decline in performance as resolution increases, but the magnitude of the drop varies significantly depending on the settings preset. At Low settings, the average frame rate falls from 153 FPS at 1920x1080 to 123 FPS at 2560x1440, a decrease of 30 FPS, and then to 91 FPS at 3840x2160, representing a further drop of 32 FPS. This translates to a 41% reduction from 1080p to 4K at Low settings, indicating that even at the lowest graphical load, the rendering pipeline becomes more strained at higher pixel counts.

Medium settings show a similar pattern, with averages of 119 FPS at 1080p, 96 FPS at 1440p, and 71 FPS at 4K. The step from 1080p to 1440p costs 23 FPS, while moving from 1440p to 4K costs another 25 FPS. The 4K Medium result includes a minimum of 60 FPS and a maximum of 81 FPS, suggesting that the frame time variance widens at higher resolutions. High settings produce averages of 90 FPS at 1080p, 72 FPS at 1440p, and 53 FPS at 4K, with the 1080p-to-1440p drop being 18 FPS and the 1440p-to-4K drop being 19 FPS.

Ultra settings exhibit the tightest absolute scaling, starting at 85 FPS at 1080p, falling to 69 FPS at 1440p, and reaching 51 FPS at 4K. The difference between 1080p and 4K at Ultra is 34 FPS, which is proportionally smaller than the 62 FPS difference seen at Low settings. This indicates that as graphical complexity increases, the bottleneck shifts from pure pixel throughput toward other factors, such as shading and memory bandwidth. The data suggests that at 4K Ultra, the system is approaching its limits, with the 51 FPS average barely crossing the threshold for smooth simulation gameplay.

The scaling pattern points to the GPU as the limiting component at higher resolutions. The RX 6800 XT’s 16 GB of GDDR6 memory and 512.0 GB/s bandwidth are sufficient for 1080p and 1440p, but 4K demands more from the render pipeline, as evidenced by the sharper FPS declines at each preset tier. Conversely, at 1080p Low, the 153 FPS result hints that the CPU’s 12 cores and 24 threads provide ample headroom, allowing the GPU to operate near its peak output without being constrained by the processor.

GPU Role

The AMD Radeon RX 6800 XT is built on the RDNA 2.0 architecture with a Navi 21 chip, featuring 4608 shading units, 288 texture mapping units, and 128 render output units. Its base clock runs at 1825 MHz, with a boost clock of 2250 MHz and a game clock of 2015 MHz. The memory operates at 2000 MHz with 16 Gbps effective speed, delivering 512.0 GB/s of bandwidth across a 256-bit bus. These specifications directly influence the measured frame rates, particularly at higher settings where the GPU’s compute and memory subsystems are fully utilized.

In Microsoft Flight Simulator, the GPU’s role is evident in the gap between Low and Ultra settings at each resolution. At 4K, the average FPS drops from 91 at Low to 51 at Ultra, a 44% reduction. This performance penalty is consistent with the increased shading and texture work required by Ultra presets, which leverage the full 20.74 TFLOPS of FP32 compute power. The 72 ray accelerators also contribute to the visual fidelity, though the measured data does not isolate ray tracing effects separately.

The 16 GB memory capacity is a notable asset for this game, which is known for streaming large terrain and aircraft models. The 512.0 GB/s bandwidth ensures that texture data can be fed to the shader units without stalling, as seen in the 4K Medium result where the minimum FPS stays at 60. However, at 4K Ultra, the lack of a reported minimum FPS suggests that frame pacing becomes less stable, potentially due to memory pressure or shader complexity. The GPU’s percentile ranking of 85 against all GPUs indicates it sits in the upper tier, but its nearest rivals, such as the NVIDIA GeForce RTX 5070 Ti with a delta of -3%, show that it is not the absolute fastest option.

How This Combo Ranks

The combination of the Ryzen 9 7900X and the RX 6800 XT achieves a combo rank of 1156 out of 3714 tested configurations in Microsoft Flight Simulator. This places the pairing in the top 31% of all combos, which is a strong showing given the game’s demanding nature. The rank reflects the balance between the CPU’s high single-threaded and multi-threaded performance and the GPU’s capable rasterization throughput.

The CPU’s average benchmark score of 53288 places it in the 91st percentile of all processors, with nearest rivals like the AMD EPYC 7313P (0.2% higher) and the Intel Core i7-14700F (0.6% lower) showing that it is tightly clustered with other high-end chips. This means the 7900X provides a consistent foundation for the GPU to operate without bottlenecking, particularly at lower resolutions where CPU-bound scenarios are more likely. The GPU’s average benchmark score of 48477 places it in the 85th percentile, with rivals such as the NVIDIA RTX A1000 Mobile (1.5% higher) and the Intel Arc A550M (2.5% lower) indicating that it is a mid-to-high-tier graphics card.

The combo rank of 1156 suggests that while this pairing is not at the absolute top of the leaderboard, it delivers a solid experience for most players. The gap between the CPU’s 91st percentile and the GPU’s 85th percentile implies that the GPU is the limiting factor in achieving higher ranks, which aligns with the resolution scaling analysis. In practical terms, this combo is well-suited for 1440p gaming at High or Ultra settings, where the measured FPS of 72 and 69 respectively are comfortably playable.

Settings Recommendations

Based on the measured FPS rows, the optimal settings depend on the target resolution and the desired frame rate floor. For 1920x1080, all presets deliver average FPS above 85, so the Ultra preset at 85 FPS is the best choice for maximum visual quality without sacrificing smoothness. The Medium preset at 119 FPS offers a 34 FPS advantage over Ultra, which could be preferable for pilots who prioritize fluidity, but the data shows no reason to drop below High at 90 FPS unless extreme frame rates are needed.

At 2560x1440, the High preset at 72 FPS provides a good balance, while Ultra at 69 FPS is nearly identical in performance. The Medium preset at 96 FPS is the strongest option for smoother gameplay, with its 82 FPS minimum ensuring that even busy scenes remain fluid. Low at 123 FPS is available for competitive or training scenarios, but it sacrifices significant visual detail for a 27 FPS gain over Medium, which is not justified given the already playable Medium result.

For 3840x2160, the Medium preset at 71 FPS (with a 60 FPS minimum) is the recommended choice, as it maintains a playable frame rate while offering more visual fidelity than Low. The High preset at 53 FPS and Ultra at 51 FPS are borderline for simulation, where consistent frame pacing is critical for immersion. The Low preset at 91 FPS is the only 4K option that exceeds 60 FPS comfortably, but it removes many of the graphical features that make Flight Simulator visually compelling. Therefore, Medium is the sweet spot for 4K, providing a 20 FPS improvement over High while keeping the minimum above 60.

FAQ

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

A: The data shows that 2560x1440 at Medium settings yields 96 FPS average with a minimum of 82 FPS, making it the most balanced option. At 4K, Medium drops to 71 FPS average, which is still playable but closer to the edge.

Q: How much performance is lost when moving from 1080p to 4K at Ultra settings?

A: At Ultra, the average FPS falls from 85 at 1920x1080 to 69 at 2560x1440 and finally to 51 at 3840x2160, representing a total loss of 34 FPS or 40% of the 1080p performance.

Q: Is the CPU or GPU more likely to limit performance?

A: The resolution scaling suggests the GPU is the primary limiter at higher resolutions. At 4K, the FPS drops sharply across all settings, while the CPU’s 91st percentile ranking indicates it has sufficient headroom.

Q: Can this combo maintain 60 FPS at 4K?

A: Yes, but only at Medium settings, where the average is 71 FPS and the minimum is 60 FPS. High and Ultra presets fall below 60 FPS at 4K, averaging 53 and 51 FPS respectively.

Q: How does the RX 6800 XT compare to its nearest rivals in this game?

A: The GPU’s average benchmark score of 48477 is 1.5% higher than the NVIDIA RTX A1000 Mobile and 3% lower than the NVIDIA GeForce RTX 5070 Ti, indicating it is competitive but not top-tier.

Q: What is the frame time variance at Medium settings?

A: At Medium settings, the measured data includes minimum and maximum FPS values. At 1080p, the range is 101 to 137 FPS, at 1440p it is 82 to 110 FPS, and at 4K it is 60 to 81 FPS, showing increasing variance at higher resolutions.

CPU Role

The AMD Ryzen 9 7900X is a 12-core, 24-thread processor based on the Zen 4 architecture, codenamed Raphael, and manufactured on a 5 nm process by TSMC. It operates with a base clock of 4.70 GHz and a boost clock of 5.60 GHz, with a TDP of 170 W. The CPU features 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of shared L3 cache, which provides ample data locality for the game’s simulation logic. Its memory support includes DDR5 with a dual-channel bus delivering 83.2 GB/s of bandwidth.

In Microsoft Flight Simulator, the CPU’s role is to handle the complex flight dynamics, weather systems, and terrain streaming logic. The 7900X’s strong single-threaded performance, evidenced by a Cinebench R23 single-core score of 2016.5 and a Geekbench single-core score of 2617, ensures that the main simulation thread runs efficiently. The multi-threaded capabilities, with a Cinebench R23 multi-core score of 29300 and a Passmark multithread score of 51406, allow for background tasks like asset loading and AI traffic to be processed without interfering with the primary frame rendering.

The CPU’s 91st percentile ranking against all processors, with an average benchmark score of 53288, puts it ahead of most desktop chips. Its nearest rivals, such as the AMD EPYC 7313P (0.2% faster) and the Intel Xeon 634 (0.6% faster), are not typical gaming CPUs, which underscores the 7900X’s suitability for this workload. The data shows that at 1080p Low, the system reaches 153 FPS, which is likely CPU-bound to some degree, but the processor’s 12 cores prevent it from being a significant bottleneck. Overall, the 7900X provides a robust platform for the RX 6800 XT, allowing the GPU to perform to its potential.

Measured FPS Breakdown

The measured FPS data is organized by resolution and settings preset, providing a comprehensive view of the combo’s capabilities. At 1920x1080, Low settings produce an average of 153 FPS, while Medium yields 119 FPS with a minimum of 101 and a maximum of 137. High settings average 90 FPS, and Ultra averages 85 FPS. The 1080p results show that even at Ultra, the system maintains a frame rate well above 60 FPS, making it suitable for high-refresh-rate monitors.

At 2560x1440, Low settings average 123 FPS, Medium averages 96 FPS with a minimum of 82 and a maximum of 110, High averages 72 FPS, and Ultra averages 69 FPS. The 1440p data reveals a clear preference for Medium or High, as the drop from Medium to High is 24 FPS, which is noticeable in a flight simulator where smooth panning is important. The Low preset at 123 FPS is the only option that provides a triple-digit average at this resolution.

At 3840x2160, Low settings average 91 FPS, Medium averages 71 FPS with a minimum of 60 and a maximum of 81, High averages 53 FPS, and Ultra averages 51 FPS. The 4K results highlight the GPU’s limitations at higher graphical loads, with only Low and Medium exceeding the 60 FPS threshold. The lack of minimum FPS data for Low, High, and Ultra presets suggests that the testing methodology only captured average values for those configurations, but the Medium preset’s 60 FPS minimum confirms that it is the most stable 4K option.

Across all resolutions, the Medium preset consistently offers the best balance of visual quality and performance, with the largest FPS advantage over High coming at 1440p (24 FPS) and the smallest at 4K (18 FPS). The data also shows that the gap between Low and Ultra narrows as resolution increases, from 68 FPS at 1080p to 40 FPS at 4K, indicating that the GPU becomes more of a limiting factor at higher pixel counts.