Microsoft Flight Simulator

Microsoft Flight Simulator is a demanding flight simulation title that stresses both the processor and the graphics card in unique ways. This analysis examines the measured performance of the AMD Ryzen 9 9900X paired with the AMD Radeon RX 6600 XT, using recorded data from the database to assess the combination's capabilities across different resolutions and settings. The results show a system that is clearly limited by the GPU at higher resolutions, while the CPU provides ample headroom for the simulation's complex calculations.

CPU Role

The AMD Ryzen 9 9900X is a 12-core, 24-thread processor based on the Zen 5 architecture, built on a 4 nm process. It operates at a base clock of 4.40 GHz and a boost clock of 5.60 GHz, with a 120 W TDP. The processor includes 64 MB of L3 cache and supports DDR5 memory in a dual-channel configuration. Its benchmark scores indicate a strong performer: it achieves a Cinebench R23 multicore score of 32172 and a single-core score of 2253. In Passmark's multithread test, it scores 54643, and its single-thread score is 4672.

In Microsoft Flight Simulator, the CPU is responsible for simulating flight physics, weather systems, and AI traffic, which can be highly demanding on single-thread performance. The Ryzen 9 9900X's single-core capability, as shown by its Geekbench single-core score of 3010, is critical for maintaining frame rates in complex scenarios. The data shows that at 1080p with Low settings, the system achieves 101 FPS, indicating that the CPU is not the limiting factor at lower graphical loads. The processor's 3DMark single-thread score of 1286 and 2-thread score of 2519 further support its ability to handle the simulation's core logic.

The CPU's 24 threads also help with background tasks and the game's multi-threaded aspects, though the simulation is not fully optimized for many cores. The database shows a 3DMark 16-thread score of 12552 and a max-thread score of 13929, confirming that multi-threaded performance is robust. Compared to its nearest rivals, the Ryzen 9 9900X has an average benchmark score of 57498, which is 0.1% lower than the AMD EPYC 9015 (57555) and 0.2% higher than the AMD EPYC 7313 (57399). It trails the Intel Core i9-14900 (58115) by 1.1% and the Intel Xeon Platinum 8260M (58323) by 1.4%. These small deltas show that the CPU is competitive with top-tier server and desktop chips, though for this game, its single-thread strength is the primary contributor to maintaining high minimum frame rates.

GPU Role

The AMD Radeon RX 6600 XT is based on the RDNA 2.0 architecture with the Navi 23 chip, built on a 7 nm process. It features 8 GB of GDDR6 memory on a 128-bit bus, providing 256.0 GB/s of bandwidth. The GPU has 2048 shading units, 128 texture mapping units, and 64 render output units. Its base clock is 1968 MHz, with a boost clock of 2589 MHz and a game clock of 2359 MHz. The memory operates at 2000 MHz (16 Gbps effective). The GPU's FP32 performance is 10.60 TFLOPS, and it supports DirectX 12 Ultimate, Vulkan 1.4, and OpenGL 4.6.

The GPU's role in Microsoft Flight Simulator is to render detailed terrain, aircraft models, and lighting effects. The 8 GB VRAM is a significant factor, as the game can use substantial memory at higher resolutions and settings. The measured data shows that at 4K Ultra, the average FPS drops to 33, which is likely due to both VRAM capacity and raw compute limits. The GPU's Passmark G3D score is 16461, and its 3DMark Steel Nomad DX12 score is 1804, indicating moderate performance for a card in its class.

The RX 6600 XT ranks in the 70th percentile among all GPUs, with an average benchmark score of 24442. Its nearest rival, the NVIDIA GeForce GTX 1630, scores 24277, which is 0.7% lower, while the Intel Arc A350M scores 24647, which is 0.8% higher. The NVIDIA GeForce GTX 780 Ti scores 24236 (0.8% lower), and the NVIDIA GeForce RTX 2080 SUPER scores 24170 (1.1% lower). These comparisons show that the RX 6600 XT sits in a specific performance band, and in this game, its limits become apparent at higher settings. The GPU's 256.0 GB/s memory bandwidth is sufficient for 1080p and 1440p gaming, but at 4K, the 8 GB frame buffer and bandwidth constraints cause significant FPS drops.

Settings Recommendations

The measured data provides clear guidance on which settings offer the best experience for this combination. At 1080p, the system achieves 101 FPS at Low settings, 78 FPS at Medium, 59 FPS at High, and 56 FPS at Ultra. The Medium preset provides a balanced experience, with an average FPS of 78 and a minimum FPS of 66, which is well above the 60 FPS threshold for smooth gameplay. High settings drop to 59 FPS, which is still playable, but the jump from Medium to High costs 19 FPS (a 24% reduction). Ultra settings offer only 56 FPS, which is only 3 FPS lower than High, but the visual gains may not justify the performance loss.

At 1440p, the system delivers 81 FPS at Low, 63 FPS at Medium, 47 FPS at High, and 45 FPS at Ultra. The Medium preset again provides the best balance, with an average of 63 FPS and a minimum of 54 FPS. High settings drop to 47 FPS, which is below the ideal 60 FPS target, and Ultra offers 45 FPS. For a consistent experience, Medium at 1440p is the recommended choice, as it maintains playable frame rates while offering better visuals than Low.

At 4K, the system struggles: 60 FPS at Low, 47 FPS at Medium, 35 FPS at High, and 33 FPS at Ultra. Only the Low preset achieves 60 FPS, while Medium drops to 47 FPS. For 4K gaming, the Low preset is the only option that provides a smooth experience, and even then, the visual fidelity is significantly reduced. The data indicates that this combination is not suited for 4K at higher settings, as the GPU becomes the bottleneck. The Medium preset at 1080p is the best overall experience, offering high frame rates and acceptable visual quality.

How This Combo Ranks

In the database of tested combinations, the AMD Ryzen 9 9900X with the AMD Radeon RX 6600 XT ranks 2571 out of 3714 total combos for Microsoft Flight Simulator. This places the system in the lower half of all tested configurations, which is consistent with the GPU's mid-range positioning. The rank reflects that while the CPU is a high-end processor (92nd percentile among all CPUs), the GPU is only in the 70th percentile, and the overall combination is limited by the graphics card.

The rank of 2571 out of 3714 means that approximately 69% of tested combos perform better in this game. This is not surprising given that Flight Simulator is heavily GPU-dependent at higher resolutions and settings. The CPU's strong performance does not compensate for the GPU's limitations in this title. The data shows that the combination is capable of running the game well at 1080p Medium or Low, but it falls behind systems with more powerful GPUs. The rank also suggests that users with this CPU could benefit from a more powerful GPU to fully utilize the processor's potential, though the current pairing is functional for less demanding settings.

Resolution Scaling

The measured FPS data reveals how the system scales across resolutions. At 1080p Low, the system achieves 101 FPS. Moving to 1440p Low, the FPS drops to 81, a 20% reduction. At 4K Low, the FPS drops to 60, a further 26% reduction from 1440p. This scaling pattern indicates that the GPU is the primary limiting factor as resolution increases. The CPU has sufficient headroom, as evidenced by the high FPS at 1080p Low, but the GPU cannot maintain the same performance at higher pixel counts.

For Medium settings, the FPS drops from 78 at 1080p to 63 at 1440p (a 19% reduction) and then to 47 at 4K (a 25% reduction). At High settings, the drop is from 59 at 1080p to 47 at 1440p (a 20% reduction) and to 35 at 4K (a 26% reduction). The consistent pattern of roughly 20-26% FPS drops between resolutions suggests that the GPU's rendering capabilities scale predictably with pixel count. The 8 GB VRAM may also contribute to the steep drop at 4K, as the game may need to swap textures or reduce detail.

The data indicates that the limiting component is the GPU. At 1080p, the CPU is not the bottleneck, as the system achieves over 100 FPS at Low settings. However, as the resolution increases, the GPU's compute and memory bandwidth become constrained, leading to lower FPS. The CPU's performance remains stable, but the GPU cannot keep up, confirming that this is a GPU-limited configuration at higher resolutions.

Measured FPS Breakdown

The following is the complete breakdown of measured average FPS for each resolution and settings combination:

1920x1080:

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

2560x1440:

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

3840x2160:

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

The data shows that the system is most comfortable at 1080p, where even High settings produce 59 FPS. At 1440p, Medium is the highest playable setting, with High and Ultra falling below 50 FPS. At 4K, only Low achieves 60 FPS, and all other settings are below 50 FPS. The minimum FPS data for Medium settings shows that at 1080p, the minimum is 66 FPS, which is smooth, but at 1440p, the minimum is 54 FPS, which may be noticeable in busy scenes. At 4K, the minimum is 40 FPS, which can cause stuttering.

The gap between Low and Ultra settings is significant: at 1080p, the difference is 45 FPS (101 to 56), at 1440p, the difference is 36 FPS (81 to 45), and at 4K, the difference is 27 FPS (60 to 33). This shows that the GPU has less headroom at higher resolutions, making the settings choice more critical. The overall pattern confirms that this combination is best suited for 1080p gaming, with 1440p being acceptable at Medium settings, and 4K being limited to Low settings.

FAQ

Q: What is the best resolution for this CPU and GPU combination in Microsoft Flight Simulator?

A: The data shows that 1920x1080 provides the highest frame rates, with 101 FPS at Low, 78 FPS at Medium, 59 FPS at High, and 56 FPS at Ultra. This resolution is the most suitable for smooth gameplay.

Q: How does the system perform at 1440p?

A: At 2560x1440, the system achieves 81 FPS at Low, 63 FPS at Medium, 47 FPS at High, and 45 FPS at Ultra. The Medium preset is the only one that maintains an average above 60 FPS.

Q: Is 4K gaming viable with this setup?

A: At 3840x2160, the system only achieves 60 FPS at Low settings. Medium drops to 47 FPS, High to 35 FPS, and Ultra to 33 FPS. 4K is only playable at Low settings.

Q: What is the limiting component in this configuration?

A: The GPU, the AMD Radeon RX 6600 XT, is the limiting factor. The CPU, the AMD Ryzen 9 9900X, provides sufficient performance, as evidenced by the high frame rates at 1080p Low, but the GPU cannot maintain performance at higher resolutions.

Q: How does this combo rank compared to other tested systems?

A: The combination ranks 2571 out of 3714 tested combos for Microsoft Flight Simulator, placing it in the lower half of all tested configurations.

Q: What is the average FPS difference between Low and Ultra settings at 1080p?

A: At 1920x1080, the difference between Low (101 FPS) and Ultra (56 FPS) is 45 FPS, showing a significant performance cost for higher visual quality.