Microsoft Flight Simulator

The AMD Ryzen 7 9800X3D paired with the AMD Radeon RX 5700 XT presents a fascinating study in bottleneck dynamics within Microsoft Flight Simulator. The CPU is a top-tier gaming processor, while the GPU is an older, end-of-life mid-range card. Benchmark results show a system where the graphics card consistently limits performance, yet the CPU’s strength ensures the frame pacing remains stable even under heavy load.

Resolution Scaling

The measured FPS data reveals a clear and predictable pattern of performance degradation as resolution increases. At 1080p with Low settings, the combo achieves an average of 96.8 FPS. Moving to 1440p drops that figure to 77.7 FPS, a reduction of 19.1 FPS. The jump to 4K at Low settings yields 59.4 FPS, which is a further drop of 18.3 FPS from 1440p. This scaling curve indicates that the RX 5700 XT’s pixel throughput is the primary constraint.

The story becomes more complex at higher settings. At High settings, the average frame rate falls from 59.1 FPS at 1080p to 46.3 FPS at 1440p (a 12.8 FPS drop), and then to 35.5 FPS at 4K (a 10.8 FPS drop). The absolute difference between resolutions shrinks as the preset increases, suggesting that the workload shifts from pure pixel fill to more complex shading and compute, which this GPU handles with diminishing returns. Ultra settings compress the scale further: 56.8 FPS at 1080p, 46.4 FPS at 1440p, and 33.7 FPS at 4K. The data implies that at 4K Ultra, the GPU is fully saturated, while at 1080p Low, the CPU’s strong single-thread performance—evidenced by a 3dmark_single_thread score of 1212—is what keeps the frame rate from falling even lower.

GPU Role

The Radeon RX 5700 XT’s specifications directly explain its behavior in this simulator. With 8 GB of GDDR6 memory on a 256-bit bus, the card has a bandwidth of 448.0 GB/s, which is substantial for its generation. However, the 8 GB capacity is now a limiting factor in a game like Microsoft Flight Simulator, which loads vast textures for terrain and aircraft. The card’s boost clock of 1905 MHz and game clock of 1755 MHz are respectable, but the RDNA 1.0 architecture lacks dedicated ray tracing cores. This absence matters because the simulator’s lighting engine can be demanding, though the measured data shows the card still manages playable averages at lower presets.

The GPU’s 9.754 TFLOPS of FP32 compute is modest by modern standards. This explains why the difference between High and Ultra presets is minimal at 4K: 35.5 FPS versus 33.7 FPS. The card is hitting a compute wall, not a bandwidth wall. The passmark_g3d score of 16277 places it in the 68th percentile of all GPUs, which aligns with its mid-range positioning. The data suggests that while the VRAM is sufficient for 1080p and 1440p, the 4K Ultra preset likely exceeds the card’s texture cache, forcing constant data streaming that the 448.0 GB/s bandwidth cannot fully compensate for.

Settings Recommendations

Based on the measured FPS rows, the optimal experience depends heavily on the target resolution. For 4K, the Low preset is the only viable option for smooth gameplay, delivering 59.4 FPS. Medium at 4K drops to 44.7 FPS, which is below the 60 FPS threshold but still playable. The High and Ultra presets at 4K (35.5 and 33.7 FPS respectively) are too choppy for a flight sim where precise control is required.

At 1440p, the Medium preset offers a balanced 63.4 FPS, which is a good target for most users. Low reaches 77.7 FPS, but the visual fidelity loss is significant. High at 46.3 FPS and Ultra at 46.4 FPS are nearly identical, indicating that the GPU is not gaining anything from the extra settings overhead; in this case, Medium is the sweet spot. For 1080p, the High preset at 59.1 FPS is the most balanced, though Low at 96.8 FPS and Medium at 74.6 FPS provide headroom for smoother motion. Ultra at 56.8 FPS is barely playable but shows the card’s limits. The recommendation is to prioritize Medium at 1440p or High at 1080p for the best visual-to-performance ratio.

FAQ

Q: Can this combo run Microsoft Flight Simulator at 4K?

A: Yes, but only at Low settings, which yields an average of 59.4 FPS. Higher presets at 4K drop below 45 FPS, making them less practical for a smooth simulation experience.

Q: How much faster is the Low preset compared to Ultra at 1080p?

A: The Low preset achieves 96.8 FPS, which is 40 FPS higher than the Ultra preset’s 56.8 FPS. This indicates a significant performance headroom when visual details are reduced.

Q: Is the CPU or GPU the limiting factor at 1080p Low?

A: The GPU is the primary limiter, but the CPU’s strength becomes evident. With a 3dmark_16_threads score of 10081 and a single-thread score of 1212, the Ryzen 7 9800X3D prevents a CPU bottleneck, allowing the RX 5700 XT to reach its maximum potential.

Q: What is the best preset for 1440p gaming?

A: The Medium preset at 63.4 FPS is the best option. Low is faster but visually sparse, while High and Ultra both hover around 46 FPS, offering no performance benefit over the lower setting.

Q: How does the RX 5700 XT compare to its nearest rivals in general benchmarks?

A: The GPU’s average benchmark score of 24731 is 0.1% lower than the NVIDIA RTX A5000 Mobile and 0.3% higher than the Intel Arc A350M, putting it in a close competitive band with those mobile and mid-range desktop parts.

Q: Does the 8 GB VRAM cause issues at 4K?

A: The data suggests it does. The drop from 44.7 FPS at Medium to 35.5 FPS at High at 4K is steep, indicating that the VRAM capacity is being exhausted and the card is struggling to manage texture data, leading to lower performance.

CPU Role

The AMD Ryzen 7 9800X3D is a powerhouse that provides a solid foundation for this GPU pairing. With 8 cores and 16 threads based on the Zen 5 architecture, it operates at a base clock of 4.70 GHz and a boost clock of 5.20 GHz. Its 96 MB of shared L3 cache is a critical asset for a simulation game that relies on large, complex data sets. The CPU’s 3dmark_single_thread score of 1212 and cinebench_r23_singlecore score of 4800 demonstrate exceptional per-core performance, which is vital for the simulator’s main thread.

In this configuration, the CPU is rarely the bottleneck. The data shows that at 1080p Low, the frame rate is 96.8 FPS, which is likely near the ceiling for this GPU. If the CPU were weaker, we would expect to see frame rate dips in complex scenarios, but the measured averages are stable. The processor’s 3dmark_max_threads score of 10067 indicates it can handle the multi-threaded physics and AI workloads of the simulator without issue. The real-world implication is that this CPU has significant headroom for a future GPU upgrade; it will not need to be replaced when the graphics card is eventually swapped for a more modern part. The 120W TDP is high, but it enables the sustained boost clocks that keep the data flowing to the GPU.

Measured FPS Breakdown

At 1920x1080, the average frame rates are as follows: Low preset delivers 96.8 FPS, Medium 74.6 FPS, High 59.1 FPS, and Ultra 56.8 FPS. The 1080p results show a clear hierarchy, with the gap between High and Ultra being negligible at only 2.3 FPS. At 2560x1440, the averages are 77.7 FPS for Low, 63.4 FPS for Medium, 46.3 FPS for High, and 46.4 FPS for Ultra. The 1440p data shows an interesting anomaly where High and Ultra are essentially identical, suggesting a settings implementation issue or a hard limit on the GPU’s compute units. At 3840x2160, the averages are 59.4 FPS for Low, 44.7 FPS for Medium, 35.5 FPS for High, and 33.7 FPS for Ultra. The 4K results show a consistent degradation as settings increase, with Low being the only preset that breaks the 60 FPS barrier.

The scaling from 1080p to 4K is not linear. At Low settings, the drop is 37.4 FPS (from 96.8 to 59.4), while at Ultra settings, the drop is 23.1 FPS (from 56.8 to 33.7). This indicates that the GPU’s pixel fill rate is the main constraint at lower settings, while at higher settings, the shading and texture work become the limiting factors. The medium preset at 1440p offers the best compromise, at 63.4 FPS, which is just above the 60 FPS target.

How This Combo Ranks

This specific combination of AMD Ryzen 7 9800X3D and AMD Radeon RX 5700 XT ranks 1345 out of 1795 tested combos for Microsoft Flight Simulator. This places it in the lower-middle tier of all configurations, which is surprising given the CPU’s high performance. The rank reflects the GPU’s age; the RX 5700 XT’s percentileVsAllGpus of 68 is low compared to the CPU’s percentileVsAllCpus of 90. The data indicates that while the CPU is a top-tier component, the GPU drags the overall combo down.

The ranking suggests that this is a mismatched pairing. The CPU has an avgBenchmarkScore of 37780, which is 0.1% above the Intel Xeon 6353P and 0.7% above the Intel Core i5-13600KF. In contrast, the GPU’s avgBenchmarkScore of 24731 is 0.6% lower than the NVIDIA GeForce RTX 5060 Mobile. This means the CPU is operating at a high level that the GPU cannot fully utilize. For the game’s specific demands, the combo is effectively GPU-bound. The rank of 1345 implies that most other tested combos either have a more balanced pairing or a stronger GPU. The data suggests that upgrading the GPU to a modern card would push this combo significantly higher in the rankings, as the CPU has ample headroom to support a faster graphics processor without becoming a limiting factor.