Microsoft Flight Simulator

# Microsoft Flight Simulator with AMD Ryzen 9 9900X3D + AMD Radeon RX 6600 XT

This combination places 2058th out of 2996 tested configurations in Microsoft Flight Simulator, putting it in the lower-middle tier of the database. The AMD Ryzen 9 9900X3D is a high-end 12-core processor with a 91st percentile ranking among all CPUs, while the AMD Radeon RX 6600 XT sits at the 70th percentile among GPUs. The substantial gap between CPU and GPU positioning indicates that this pairing is heavily GPU-limited in Microsoft Flight Simulator, a conclusion reinforced by the measured frame rates across resolutions and settings. The CPU's 128 MB of L3 cache and 5.50 GHz boost clock provide ample headroom, but the GPU's 8 GB of VRAM and 256.0 GB/s bandwidth become the binding constraints as resolution and visual fidelity increase.

Resolution Scaling

The frame rate drop from 1080p to 4K is steep and consistent across all settings, confirming that the Radeon RX 6600 XT is the primary limiting component in this configuration. At Low settings, the average FPS falls from 101 at 1920x1080 to 60 at 3840x2160—a 41% reduction in performance. This scaling pattern indicates that the GPU's rendering throughput, not the CPU's processing capability, dictates the experience at higher resolutions. The Ryzen 9 9900X3D, with its 12 cores and 24 threads, has more than enough computational headroom to feed the GPU at all tested resolutions.

Moving from 1440p to 4K at Low settings shows a further decline from 81 FPS to 60 FPS, a 26% drop. At Medium settings, the progression is: 78 FPS at 1080p, 63 FPS at 1440p, and 47 FPS at 4K. The High preset follows a similar trajectory: 59 FPS at 1080p, 47 FPS at 1440p, and 35 FPS at 4K. Ultra settings produce the lowest absolute numbers, with 56 FPS at 1080p, 45 FPS at 1440p, and 33 FPS at 4K. The consistent pattern across all presets—where each resolution step costs roughly 20-30% of the previous frame rate—suggests that pixel throughput is the dominant factor, with the CPU's influence remaining relatively constant throughout.

The 4K results are particularly telling. At 4K Ultra, the average of 33 FPS is marginally above the 30 FPS threshold, while 4K High manages 35 FPS. These numbers indicate that 4K gaming with this GPU is only viable at Low or Medium settings, where 60 FPS and 47 FPS respectively are achievable. The gap between 1080p and 4K at Ultra settings (56 FPS versus 33 FPS) represents a 41% performance penalty, nearly identical to the Low-setting penalty, which reinforces that resolution scaling is consistent regardless of visual complexity.

Settings Recommendations

For players targeting 60 FPS as a playable threshold, the data shows that 1080p is the only resolution where multiple presets achieve this goal. At 1920x1080, Low settings deliver 101 FPS, Medium delivers 78 FPS, and High delivers 59 FPS—just shy of the 60 FPS mark. Ultra at 1080p produces 56 FPS. The sweet spot for this configuration at 1080p is Medium settings, which provides a 78 FPS average with a minimum of 66 FPS and maximum of 90 FPS, offering both smooth performance and improved visual fidelity over Low.

At 2560x1440, the situation changes. Low settings achieve 81 FPS, while Medium drops to 63 FPS with a 54-73 FPS range. High and Ultra produce 47 FPS and 45 FPS respectively. For 1440p gaming, Medium is the recommended preset, as it maintains an average above 60 FPS while providing substantially better visuals than Low. The 63 FPS average with a 54 FPS minimum means occasional dips below 60 FPS, but the overall experience remains fluid for a flight simulator where frame pacing is less critical than in fast-paced action titles.

At 3840x2160, only Low settings clear the 60 FPS bar with an average of 60 FPS. Medium delivers 47 FPS (40-54 FPS range), which is playable but not ideal. High and Ultra produce 35 FPS and 33 FPS respectively, which fall below smooth-playability thresholds for most users. The recommendation for 4K is Low settings if frame rate is paramount, or Medium if visual quality takes precedence and the user can tolerate sub-60 FPS performance. The data does not support High or Ultra at 4K for this configuration.

GPU Role

The Radeon RX 6600 XT, built on the RDNA 2.0 architecture with a 7 nm process, features 8 GB of GDDR6 memory on a 128-bit bus, delivering 256.0 GB/s of bandwidth. The GPU's boost clock of 2589 MHz and game clock of 2359 MHz are respectable for its class, but the memory configuration becomes the bottleneck in Microsoft Flight Simulator's large, texture-heavy environments. The 8 GB VRAM capacity is sufficient for 1080p and 1440p at most settings, but 4K High and Ultra presets likely exceed this capacity, contributing to the steep performance drops observed.

The GPU's benchmark results place it at the 70th percentile among all GPUs, with an average benchmark score of 24442. Its nearest rivals include the NVIDIA GeForce GTX 1630 (0.7% faster), Intel Arc A350M (0.8% slower), NVIDIA GeForce GTX 780 Ti (0.8% slower), and NVIDIA GeForce RTX 2080 SUPER (1.1% faster). This tight clustering indicates that the RX 6600 XT sits in a competitive performance band, but none of these rivals would meaningfully change the 4K experience in this simulator.

The GPU's 2048 shading units, 128 texture mapping units, and 64 ROPs provide a peak pixel rate of 165.7 GPixel/s and texture rate of 331.4 GTexel/s. The FP32 performance of 10.60 TFLOPS is adequate for the simulator's rendering demands at lower resolutions, but the 4K results demonstrate that this compute capacity is insufficient for high-fidelity rendering at that pixel count. The 32 ray tracing cores are present but Microsoft Flight Simulator's implementation does not appear to leverage them heavily, as the performance scaling follows traditional rasterization patterns.

FAQ

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

A: Yes, but with significant compromises. At 4K Low settings, the average FPS is 60, while Medium achieves 47 FPS (40-54 FPS range). High and Ultra produce 35 FPS and 33 FPS respectively. For smooth 4K gameplay, Low settings are required, and Medium is playable for users tolerant of sub-60 FPS performance.

Q: What is the best resolution for this CPU-GPU pairing?

A: The data shows that 1920x1080 offers the most consistent performance across all settings, with averages ranging from 56 FPS at Ultra to 101 FPS at Low. At 1440p, Medium settings achieve 63 FPS, making it a viable option. 4K is only practical at Low or Medium settings.

Q: How does the RX 6600 XT compare to its nearest GPU rivals?

A: The GPU's average benchmark score of 24442 is 0.7% lower than the NVIDIA GeForce GTX 1630, 0.8% higher than the Intel Arc A350M, 0.8% higher than the NVIDIA GeForce GTX 780 Ti, and 1.1% lower than the NVIDIA GeForce RTX 2080 SUPER. These differences are minimal and would not substantially alter in-game performance.

Q: Is the Ryzen 9 9900X3D holding back the GPU in this game?

A: No. The CPU's benchmark scores, including a Cinebench R23 multicore score of 47737 and single-core score of 6739, place it at the 91st percentile among all CPUs. The consistent frame rate drops from 1080p to 4K across all settings indicate GPU limitation rather than CPU bottlenecking.

Q: What frame rates can be expected at 1080p Medium settings?

A: The measured average FPS is 78, with a minimum of 66 and maximum of 90. This provides a smooth experience with adequate headroom for occasional scene complexity spikes, making it the recommended preset for 1080p gaming.

Q: Does the 8 GB VRAM affect performance at higher resolutions?

A: The data suggests yes. At 4K High and Ultra, average FPS drops to 35 and 33 respectively, likely due to VRAM capacity being exceeded by the simulator's high-resolution textures. At 1080p and 1440p, the 8 GB capacity appears sufficient, as performance scaling is more consistent with GPU compute limitations.

CPU Role

The AMD Ryzen 9 9900X3D, a 12-core, 24-thread processor from the 9000 series built on the Zen 5 architecture (Granite Ridge), provides substantial computational resources for Microsoft Flight Simulator. With a base clock of 4.40 GHz and boost clock of 5.50 GHz, the CPU delivers strong single-threaded performance, which is critical for the simulator's core simulation logic. The 128 MB L3 cache is particularly beneficial for flight simulators, which often feature large, complex world data that benefits from high cache capacity.

The CPU's benchmark results demonstrate its capability: Cinebench R23 multicore score of 47737 and single-core score of 6739, Geekbench multicore of 22884 and single-core of 3041. The PassMark multithread score of 56154 and single-thread score of 4646 further confirm its position at the 91st percentile among all CPUs. Compared to nearest rivals, the Ryzen 9 9900X3D's average benchmark score of 54762 is 0.6% lower than the Intel Core Ultra 5 245KF, 1.3% higher than the Intel Core Ultra 5 245K, 2% higher than the Intel Xeon 6505P, and 2.1% higher than the Intel Core i7-14700F. This places it in a tightly contested performance band at the top of the consumer CPU market.

In Microsoft Flight Simulator, the CPU's role is to handle the simulation engine, physics calculations, and draw call management. The measured FPS data shows that at 1080p Low settings, the configuration achieves 101 FPS, which suggests the CPU can support frame rates well above what the GPU can deliver at higher resolutions. The fact that 4K Low produces 60 FPS—exactly half of the 1080p Low result—indicates that the GPU's pixel throughput is the limiting factor, not the CPU's ability to feed the rendering pipeline. The CPU's 89.6 GB/s memory bandwidth and DDR5 support provide ample data throughput for the simulator's asset streaming requirements.

Measured FPS Breakdown

1920x1080 (1080p):

• Ultra: 56 FPS average
• High: 59 FPS average
• Medium: 78 FPS average, 66 FPS minimum, 90 FPS maximum
• Low: 101 FPS average

At 1080p, the configuration delivers playable frame rates across all settings. Medium is the standout preset, offering a 78 FPS average with a 66 FPS floor, which provides smooth gameplay in most scenarios. The gap between High (59 FPS) and Ultra (56 FPS) is minimal, suggesting that Ultra's additional visual features do not significantly impact performance at this resolution.

2560x1440 (1440p):

• Ultra: 45 FPS average
• High: 47 FPS average
• Medium: 63 FPS average, 54 FPS minimum, 73 FPS maximum
• Low: 81 FPS average

At 1440p, Medium remains the best balance, delivering 63 FPS average with a 54 FPS minimum. High and Ultra converge at 47 FPS and 45 FPS respectively, indicating that the GPU's compute resources are becoming saturated. Low settings provide a comfortable 81 FPS, offering headroom for users who prioritize frame rate over visual fidelity.

3840x2160 (4K):

• Ultra: 33 FPS average
• High: 35 FPS average
• Medium: 47 FPS average, 40 FPS minimum, 54 FPS maximum
• Low: 60 FPS average

At 4K, the limitations of the RX 6600 XT become apparent. Only Low settings achieve 60 FPS, while Medium provides a playable 47 FPS with a 40 FPS minimum. High and Ultra fall below 36 FPS, which is generally considered the threshold for acceptable interactive performance. The 4K Medium range of 40-54 FPS indicates significant scene-dependent variability, with complex scenery causing drops below 45 FPS.

The overall pattern across all resolutions and settings confirms that this configuration is best suited for 1080p gaming, with 1440p Medium as a viable alternative. 4K gaming requires significant setting reductions to maintain playability, and the data does not support High or Ultra presets at that resolution. The combination of the high-end Ryzen 9 9900X3D with the mid-range RX 6600 XT creates a system where the CPU's capabilities far exceed what the GPU can utilize in this simulator, making the graphics card the definitive performance arbiter.