Microsoft Flight Simulator

Microsoft Flight Simulator presents an unusual challenge for the AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 4080 SUPER combination. The data shows a system capable of high frame rates, yet the relationship between settings and resolution reveals a complex interplay between the CPU's 8 cores and the GPU's 16 GB of memory. This analysis examines the measured performance to determine the optimal configuration and what the results imply about the limiting factors in this demanding flight simulator.

Settings Recommendations

The measured FPS data indicates that the High preset offers the most balanced experience across all resolutions. At 1920x1080, High delivers 122.3 FPS, which is nearly identical to the 120.1 FPS achieved at Ultra, yet the step down to Medium provides a significant jump to 164.5 FPS. This suggests that the visual fidelity gains from Ultra to High are marginal, while the performance cost is substantial. At 2560x1440, High produces 96.1 FPS, a figure that remains comfortably playable, while Ultra drops to 92.7 FPS. The difference between these two settings is only 3.4 FPS, indicating that High is the more efficient choice without a perceptible quality loss.

The case for High becomes even stronger at 3840x2160. Here, High yields 71.1 FPS, while Ultra manages just 70.7 FPS—a negligible 0.4 FPS difference that is well within the margin of error. The data implies that at 4K, the Ultra preset is not rendering additional detail that translates into measurable frame rate penalties; instead, both presets are likely constrained by the same bottleneck. For users seeking higher refresh rates, Low at 1920x1080 produces 211.3 FPS, but this comes at the cost of the visual immersion that defines the flight simulator genre. Medium at 1440p provides a strong middle ground with 128.7 FPS, yet High remains the recommended preset for its combination of visual quality and performance headroom.

GPU Role

The RTX 4080 SUPER’s 16 GB of GDDR6X memory is a defining characteristic for Microsoft Flight Simulator, a game known for streaming vast landscapes. The memory bandwidth of 736.3 GB/s, paired with a 256-bit bus, ensures that texture data can be fed to the GPU efficiently. The base clock of 2295 MHz and boost clock of 2550 MHz provide the raw compute power necessary to handle the simulator’s complex rendering, and the 52.22 TFLOPS of FP32 performance is substantial. However, the benchmark results show that the GPU is not always the primary constraint.

At 1920x1080 with Low settings, the system achieves 211.3 FPS, which is a high-water mark that suggests the CPU is capable of feeding the GPU at a rapid pace. Yet, when moving to Ultra at the same resolution, the frame rate drops to 120.1 FPS. This 91.2 FPS decrease is far larger than the difference between Low and High at 4K, where the drop is 51.6 FPS (from 122.3 to 70.7). The data indicates that at 1080p, the GPU’s shading units and ROPs become saturated as settings increase, while at 4K, the memory bandwidth is the limiting factor. The RTX 4080 SUPER’s 112 ROPs and 320 TMUs are sufficient for 1080p, but the pixel rate of 285.6 GPixel/s is challenged at higher resolutions, as evidenced by the 4K Ultra score being nearly identical to the 4K High score.

CPU Role

The AMD Ryzen 7 9800X3D’s architecture is built around its 96 MB of shared L3 cache, which is critical for a flight simulator that must handle complex physics and AI calculations. The 8 cores and 16 threads operate at a base clock of 4.70 GHz and a boost clock of 5.20 GHz, providing strong single-threaded performance that is essential for the simulator’s main thread. The benchmark scores reflect this: a Cinebench R23 single-core score of 4800 and a multi-core score of 34004 indicate a balanced processor. The percentile of 90 versus all CPUs confirms its high standing, but the nearest rivals show a tight competition.

The data implies that the CPU’s role becomes more pronounced at lower resolutions. At 1080p Low, the system hits 211.3 FPS, which is a frame rate that many GPUs would struggle to reach. This suggests that the CPU is not a bottleneck at these settings, and the 9800X3D’s cache is effectively pre-loading data. However, as resolution increases to 4K, the CPU’s advantage is less visible. The 4K Low score of 122.3 FPS is identical to the 1080p High score, which is a curious coincidence. This indicates that at 4K, the GPU’s fill rate is the limiting factor, and the CPU’s speed is sufficient to keep up. The CPU’s 89.6 GB/s memory bandwidth and dual-channel DDR5 support are adequate, but the game’s reliance on cache means that the 96 MB L3 is likely doing the heavy lifting to maintain smooth frame pacing.

FAQ

Q: What is the best preset for a 60 FPS target at 4K?

A: The High preset at 3840x2160 achieves 71.1 FPS, which exceeds the 60 FPS target. Ultra provides 70.7 FPS, so High is recommended for a small performance buffer.

Q: How does the RTX 4080 SUPER compare to its nearest rival, the RX 6900 XT?

A: Based on average benchmark scores, the RTX 4080 SUPER is 0.2% ahead of the AMD Radeon RX 6900 XT. This is a negligible difference, indicating near-identical synthetic performance.

Q: Is the CPU a bottleneck at 1080p with Low settings?

A: No. The 211.3 FPS achieved at 1920x1080 with Low settings indicates the Ryzen 7 9800X3D is not limiting performance, as the GPU is still able to render frames at a very high rate.

Q: What is the FPS difference between High and Ultra at 1440p?

A: The measured data shows High at 96.1 FPS and Ultra at 92.7 FPS, a difference of 3.4 FPS. This is a small penalty for the additional visual effects.

Q: How much faster is the CPU compared to its nearest rival, the Intel Xeon 6353P?

A: The Ryzen 7 9800X3D has an average benchmark score that is 0.1% lower than the Intel Xeon 6353P, meaning they are essentially tied in overall performance.

Q: Does the GPU’s memory size affect the 4K results?

A: The 16 GB of GDDR6X memory is likely sufficient for the game’s textures at 4K. The data shows that 4K Ultra (70.7 FPS) is close to 4K High (71.1 FPS), suggesting the GPU’s memory bandwidth, not capacity, is the limiting factor.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals a clear pattern of GPU-bound performance at higher resolutions. At Low settings, the frame rate drops from 211.3 FPS at 1080p to 122.3 FPS at 4K, a decrease of 42.1%. This is a substantial reduction, but the 4K score is still high, indicating that the RTX 4080 SUPER has ample headroom. At Medium settings, the drop is from 164.5 FPS to 96.5 FPS, a 41.3% reduction. At High settings, the drop is from 122.3 FPS to 71.1 FPS, a 41.9% reduction. At Ultra, the drop is from 120.1 FPS to 70.7 FPS, a 41.1% reduction.

The consistency of these percentage drops—hovering around 41-42%—is notable. This suggests that the scaling is primarily driven by the GPU’s fill rate, which scales inversely with the number of pixels. The fact that the relative drop is similar across all settings implies that the CPU is not introducing a variable bottleneck; it is consistently able to provide data to the GPU. However, the absolute FPS at 4K Ultra (70.7) is close to the 4K High (71.1), indicating that the GPU’s compute units are not the limiting factor at 4K. Instead, the memory bandwidth of 736.3 GB/s is likely the ceiling, as the game’s reliance on texture streaming becomes more pronounced at higher resolutions.

Measured FPS Breakdown

At 1920x1080, the data shows a wide spread across presets. Low yields 211.3 FPS, Medium produces 164.5 FPS, High achieves 122.3 FPS, and Ultra delivers 120.1 FPS. The difference between High and Ultra is only 2.2 FPS, suggesting that Ultra’s additional effects are not heavily taxing the GPU at this resolution. The jump from Medium to High is 42.2 FPS, which is a significant penalty, indicating that High introduces a major visual feature that impacts performance.

At 2560x1440, the frame rates are lower but follow a similar pattern. Low produces 167.7 FPS, Medium yields 128.7 FPS, High achieves 96.1 FPS, and Ultra delivers 92.7 FPS. The drop from Medium to High is 32.6 FPS, which is proportionally similar to the 1080p results. At 3840x2160, Low produces 122.3 FPS, Medium yields 96.5 FPS, High achieves 71.1 FPS, and Ultra delivers 70.7 FPS. The gap between Medium and High is 25.4 FPS, which is smaller than at lower resolutions, reinforcing that the GPU is becoming the limiting factor. The 4K Ultra score is nearly identical to 4K High, which is a strong indicator that the Ultra preset’s features are not being fully rendered due to a bottleneck elsewhere, likely the memory bandwidth.

How This Combo Ranks

The AMD Ryzen 7 9800X3D and NVIDIA GeForce RTX 4080 SUPER combination ranks 98 out of 1795 tested combos in Microsoft Flight Simulator. This places it in the top 5.5% of all configurations, which is an excellent result. The rank reflects the synergy between the CPU’s cache-heavy design and the GPU’s high compute throughput. The data suggests that this combo is well-suited for the game, as it consistently delivers high frame rates across all settings and resolutions.

The rank of 98 is notable because it is not the top position, implying that there are 97 other combos that perform better. These are likely configurations with even more powerful GPUs, such as the RTX 4090, or CPUs with higher single-thread performance. However, the 9800X3D’s 90th percentile ranking among CPUs and the RTX 4080 SUPER’s 88th percentile among GPUs indicate that both components are near the top of their respective categories. The combination of these two high-ranking parts results in a total performance that is greater than the sum of its parts, as the 98th rank out of 1795 suggests a favorable pairing. This is likely due to the CPU’s ability to feed the GPU efficiently, minimizing stalls and ensuring that the GPU’s resources are fully utilized. The data indicates that this is a high-end combo that will provide a smooth experience in Microsoft Flight Simulator, even at demanding 4K Ultra settings.