Microsoft Flight Simulator

The AMD Ryzen 7 9800X3D paired with the AMD Radeon RX 6750 XT presents a fascinating case study in Microsoft Flight Simulator, a title known for its demanding rendering of vast landscapes and complex cockpit systems. The measured frame rates across resolutions and presets reveal a configuration that is highly capable at mainstream resolutions but begins to show its limits when pushed to 4K with maximum detail. This analysis breaks down the data to understand where this combo excels and where its bottlenecks lie.

Settings Recommendations

The measured data offers a clear hierarchy for optimizing the gameplay experience. For users targeting a smooth 60 FPS baseline, the Medium preset emerges as the most balanced choice. At 1920x1080, Medium delivers 100.6 FPS average, which is a substantial 28.0 FPS improvement over High (72.6 FPS) while still maintaining a visual quality step above Low. At 2560x1440, Medium holds strong at 80.6 FPS, keeping the experience fluid on higher-resolution monitors.

However, the most intriguing finding is the Low preset at 1920x1080, which produces an average of 126.9 FPS. This is the only tested configuration that exceeds the 120 FPS threshold, making it the exclusive choice for high-refresh-rate displays. The jump from Low to Medium at 1080p is a 26.3 FPS drop, suggesting the visual uplift from Low to Medium comes at a significant performance cost. For 4K users, the data paints a more challenging picture. The High preset at 3840x2160 averages 42.3 FPS, which is playable but not ideal for fast-paced maneuvers. The Low preset at 4K (71.1 FPS) is the only way to achieve a smooth 60+ FPS experience at that resolution, but it requires a substantial sacrifice in visual fidelity. The Ultra preset is not recommended at any resolution, as it consistently underperforms the High preset (e.g., 70.3 FPS vs 72.6 FPS at 1080p, and 40.4 FPS vs 42.3 FPS at 4K) with negligible visual gains for this combination.

GPU Role

The AMD Radeon RX 6750 XT is built on the RDNA 2.0 architecture with a 7 nm process and houses 12 GB of GDDR6 memory on a 192-bit bus, providing 432.0 GB/s of bandwidth. Its role in this game is primarily defined by resolution and preset, as the GPU's rendering load scales directly with these factors. The card's base clock of 2150 MHz and boost clock of 2600 MHz (with a game clock of 2495 MHz) are substantial, but the data suggests that raw clock speed is not the limiting factor at lower resolutions.

The performance delta between 1080p and 1440p is modest, but the drop to 4K is pronounced. For instance, at High settings, the average FPS falls from 72.6 at 1080p to 58.7 at 1440p, a 13.9 FPS reduction. Moving to 4K High, the FPS plummets to 42.3, a further 16.4 FPS drop. This pattern indicates that the GPU's 12 GB VRAM and 432.0 GB/s bandwidth are being saturated at 4K, particularly with higher detail settings. The card's FP32 performance of 13.31 TFLOPS is clearly being taxed by the 4K workload, as evidenced by the 31.4 FPS difference between Low (71.1 FPS) and Ultra (40.4 FPS) at that resolution. The GPU's percentile ranking of 79 versus all GPUs underscores that it is a mid-to-high-tier part, but the 4K results show it is positioned at the edge of its comfort zone for this simulator.

FAQ

Q: What is the highest average frame rate achievable with this CPU/GPU combo in Microsoft Flight Simulator?

A: The highest measured average is 126.9 FPS, which is achieved at 1920x1080 resolution with the Low settings preset.

Q: Is the Ultra preset worth the performance cost at 1440p?

A: No. At 2560x1440, the Ultra preset averages 58.7 FPS, which is identical to the High preset's 58.7 FPS. Since there is no performance gain and Ultra typically demands more from the hardware, High is the more efficient choice at this resolution.

Q: How does the combo perform at 4K resolution for a smooth experience?

A: To achieve a 60+ FPS average at 3840x2160, the Low preset must be used, yielding 71.1 FPS. The Medium preset drops to 55.8 FPS, and High falls to 42.3 FPS, which are below the 60 FPS threshold.

Q: What is the performance difference between the Medium and High presets at 1080p?

A: The Medium preset averages 100.6 FPS, while High averages 72.6 FPS. This represents a 28.0 FPS advantage for Medium, making it the better option for maintaining high frame rates without dropping to the lowest visual quality.

Q: Does the GPU's memory bandwidth appear to be a bottleneck at any resolution?

A: The data suggests yes for 4K. The 4K High average of 42.3 FPS and Ultra average of 40.4 FPS are significantly lower than the 1440p High average of 58.7 FPS, indicating that the 432.0 GB/s bandwidth and 12 GB VRAM are insufficient to maintain performance when pixel count and detail levels rise simultaneously.

Q: How does this combo's frame rate at 1080p Medium compare to its 4K Ultra frame rate?

A: The 1080p Medium average is 100.6 FPS, which is 60.2 FPS higher than the 4K Ultra average of 40.4 FPS. This highlights the extreme performance scaling required for 4K Ultra settings.

Measured FPS Breakdown

The complete set of measured data provides a comprehensive view of the combo's capabilities. At 1920x1080, the frame rates are consistently high, starting with 126.9 FPS on Low, dropping to 100.6 FPS on Medium, 72.6 FPS on High, and 70.3 FPS on Ultra. The gap between High and Ultra is minimal at 2.3 FPS, suggesting diminishing returns for the highest preset.

At 2560x1440, the pattern continues but with lower absolute numbers. The Low preset yields 98.8 FPS, which is a 28.1 FPS drop from the 1080p Low result. Medium produces 80.6 FPS, High and Ultra both produce 58.7 FPS. The identical High and Ultra scores at this resolution are particularly noteworthy, indicating that the GPU is not the limiting factor in differentiating these two presets; the extra visual workload of Ultra does not translate to a frame rate penalty, but it also offers no performance benefit.

At 3840x2160, the performance ceiling is clearly lower. The Low preset averages 71.1 FPS, Medium drops to 55.8 FPS, High falls to 42.3 FPS, and Ultra bottoms out at 40.4 FPS. The progression from Low to Ultra at 4K shows a total drop of 30.7 FPS, with the steepest decline occurring between Medium (55.8 FPS) and High (42.3 FPS), a 13.5 FPS loss. This data confirms that 4K gaming with this combo requires careful preset management to maintain playability.

Resolution Scaling

The frame rate scaling from 1080p to 4K is not linear and reveals the shifting bottleneck. At High settings, the FPS drops from 72.6 at 1080p to 58.7 at 1440p, a 19.1% decrease. Moving from 1440p to 4K, the FPS drops from 58.7 to 42.3, a 27.9% decrease. This accelerating drop indicates that the GPU is becoming the primary limiting factor as the pixel count increases.

For the Low preset, the scaling is more dramatic in absolute terms but less steep in percentage. From 1080p (126.9 FPS) to 1440p (98.8 FPS) is a 22.1% reduction, and from 1440p to 4K (71.1 FPS) is a 28.0% reduction. The fact that the 4K Low score of 71.1 FPS is higher than the 1440p High score of 58.7 FPS is a critical insight: it suggests that at lower detail settings, the CPU and the game's engine are better able to feed the GPU, allowing it to push more frames even at a higher resolution. This implies that the game is not purely GPU-bound at all times; the CPU's role in physics and scenery generation becomes more apparent at higher presets, where the GPU is also stressed. The 1080p to 4K scaling for Ultra is the most punishing, going from 70.3 FPS to 40.4 FPS, a 42.5% drop, reinforcing that Ultra is a 1080p-oriented setting for this hardware.

CPU Role

The AMD Ryzen 7 9800X3D, with its 8 cores and 16 threads based on Zen 5 architecture, plays a crucial supporting role. Its high single-thread performance, as evidenced by a 3dmark_single_thread score of 1212 and a geekbench_singlecore score of 3341, is vital for a simulation game that relies heavily on a single main thread for game logic and rendering calls. The 96 MB of shared L3 cache is also a boon for this genre, as it allows for faster access to frequently used data, reducing latency.

The CPU's influence is most visible when the GPU is not the bottleneck. At 1080p with Low settings, the 126.9 FPS result suggests the CPU is capable of feeding the GPU at a high rate. However, the performance difference between 1080p Medium (100.6 FPS) and 1080p High (72.6 FPS) is a 28.0 FPS gap, which is larger than the 1440p Medium (80.6 FPS) to 1440p High (58.7 FPS) gap of 21.9 FPS. This indicates that at 1080p, the CPU is still able to push frame rates higher, but the GPU's rendering load at High settings begins to limit output. The CPU's strong multithreaded performance (cinebench_r23_multicore score of 34004) ensures that background tasks and additional simulation threads do not cause stutters, providing a stable foundation. The data shows the CPU is a capable partner, rarely being the primary constraint, but its performance headroom is not enough to overcome the GPU's limitations at higher resolutions and presets.

How This Combo Ranks

In the grand scheme of the benchmark database, this specific combination of CPU and GPU ranks 890 out of 1795 tested combos for Microsoft Flight Simulator. This places it in the upper-middle tier of all configurations. The rank indicates that there are many faster combos, but also a significant number of slower ones. Given that the CPU is a top-tier gaming processor (90th percentile vs all CPUs) and the GPU is a solid mid-to-high-tier part (79th percentile vs all GPUs), the mid-pack ranking suggests that the GPU is holding the combo back from achieving a higher position in this particular game.

This rank is a relative measure against all tested combos, which include pairings with much more powerful GPUs. The data shows that the combo is capable of delivering high frame rates at 1080p and playable frame rates at 1440p, but its 4K performance is limited. The ranking reflects this reality: it is a competent pairing for mainstream gaming, but it does not compete with high-end configurations that feature more powerful graphics cards. The 890th rank out of 1795 combos serves as a quantitative anchor, confirming that while this is not a top-tier performer for this specific simulator, it offers a well-rounded experience for users prioritizing value and solid 1080p/1440p performance.