Microsoft Flight Simulator

The AMD Ryzen 9 5950X paired with the AMD Radeon RX 6600 presents a fascinating study in bottleneck dynamics within Microsoft Flight Simulator. The data reveals a system where the 16-core processor provides a massive computational foundation, yet the graphics card ultimately dictates the experience at higher resolutions. This analysis dissects the measured frames per second across resolutions and settings, interpreting what the numbers mean for the balance between CPU and GPU workloads.

Resolution Scaling

The measured FPS data shows a clear and consistent pattern: performance degrades significantly as resolution increases, indicating a GPU-bound scenario at higher pixel counts. At 1080p with Low settings, the combo achieves 94.1 FPS, but this drops to 73.9 FPS at 1440p and further to 55.8 FPS at 4K. This represents a 21.5% decrease from 1080p to 1440p and a 40.7% decrease from 1080p to 4K, illustrating how pixel count directly taxes the RX 6600.

The scaling pattern shifts with higher settings. At High settings, the frame rate falls from 54.7 FPS at 1080p to 41.3 FPS at 1440p, then to 30.5 FPS at 4K. The drop from 1440p to 4K is 26.2%, which is less severe than the 24.5% drop from 1080p to 1440p, suggesting that at High settings, the GPU is already under heavy load even at lower resolutions. This is a classic sign of the GPU becoming the limiting component, as the CPU's headroom becomes irrelevant when the renderer cannot produce frames fast enough.

Interestingly, the Ultra preset shows a different scaling curve. The 4K Ultra result of 29.7 FPS is only slightly below the High preset's 30.5 FPS, while at 1440p, both High and Ultra produce identical 41.3 FPS. This convergence at higher settings and resolutions strongly implies that the RX 6600's 8 GB VRAM and 224.0 GB/s bandwidth are saturated, causing the GPU to become the sole bottleneck. The data indicates that the CPU's 16 cores and 32 threads are not the limiting factor in any scenario, as the FPS drops are proportional to the GPU workload increase.

CPU Role

The Ryzen 9 5950X is a 16-core, 32-thread processor based on the Zen 3 architecture, with a base clock of 3.40 GHz and a boost clock of 4.90 GHz. Its benchmark results show exceptional multi-threaded capability, with a Cinebench R23 multi-core score of 38607 and a PassMark multithread score of 45424. These figures place the CPU in the 93rd percentile among all processors, making it a top-tier performer for any workload.

However, Microsoft Flight Simulator is known for its reliance on single-thread performance, and the data reflects this. The CPU's single-core Cinebench R23 score of 5450 and Geekbench single-core score of 2211 are strong, but the game's FPS results show no indication of CPU limitation. Even at 1080p Low, where the GPU has the least work, the 94.1 FPS result is likely limited by the simulation's engine and the GPU, not the CPU. The CPU's 64 MB of L3 cache and dual-channel DDR4 memory support provide ample bandwidth, but the game simply does not appear to be pushing the processor to its limits.

The fact that the combo ranks 1456 out of 1795 tested combos in this game, despite having a top-7% CPU, suggests that the processor's raw power is not the deciding factor. The CPU's 105 W TDP and unlocked multiplier indicate a high-performance part, but in this specific game, its role is secondary to the GPU. The data implies that even a significantly weaker CPU could achieve similar FPS with this GPU, as the RX 6600's rendering capacity is the primary constraint.

Settings Recommendations

Examining the measured FPS across presets reveals that the Low preset offers the most playable experience, particularly at higher resolutions. At 1080p Low, the system achieves 94.1 FPS, which is more than sufficient for smooth gameplay. At 1440p Low, the 73.9 FPS result remains excellent, and even at 4K Low, the 55.8 FPS is respectable for a flight simulator. This preset appears to be the sweet spot for maintaining high frame rates without sacrificing too much visual fidelity.

The Medium preset provides a balanced alternative, with 72.7 FPS at 1080p and 54.5 FPS at 1440p. These numbers are playable, but the 44.6 FPS at 4K Medium may be borderline for some users. The High and Ultra presets are more demanding, with High yielding 54.7 FPS at 1080p and Ultra dropping to 51.2 FPS. At 4K, both High and Ultra fall below 31 FPS, which is not ideal for a smooth experience.

For the best experience, the data suggests using the Low preset at 4K or the Medium preset at 1440p. The Low preset at 4K provides 55.8 FPS, which is 25% higher than the Medium preset at 1440p, making it a strong choice for those prioritizing frame rate. The Ultra preset offers no meaningful advantage over High at any resolution, with identical scores at 1440p and only a 0.8 FPS difference at 1080p, so it is not recommended given the performance cost.

How This Combo Ranks

This combo ranks 1456th out of 1795 tested combinations in Microsoft Flight Simulator, placing it in the bottom 19% of all tested systems. This ranking is surprising given the CPU's strong performance, but it highlights the GPU's limitations. The RX 6600 has an average benchmark score of 25235 and sits in the 69th percentile of all GPUs, which is respectable but not exceptional for a demanding title.

The GPU's nearest rivals provide context for its performance. The AMD Radeon 890M scores 25246, a 0% difference, while the AMD Radeon RX 580 2048SP scores 25287, a -0.2% difference. The AMD Radeon RX 6700M scores 25180, a 0.2% difference, and the NVIDIA GeForce RTX 3060 Ti scores 25120, a 0.5% difference. These near-identical scores indicate that the RX 6600's performance is tightly clustered with these competitors, and the game's ranking reflects this mid-pack GPU positioning.

The CPU's ranking is much stronger, with an average benchmark score of 49062 and a 93rd percentile placement. Its nearest rivals include the Intel Core i5-14600K at 49166 (-0.2%), the Intel Core i5-14600KF at 49367 (-0.6%), the Intel Xeon Gold 5318H at 48698 (0.7%), and the AMD EPYC 4345P at 49595 (-1.1%). The data clearly shows that the GPU is the primary reason for this combo's low ranking, as the CPU alone would place it in the top tier.

FAQ

Q: What is the best resolution for this combo in Microsoft Flight Simulator?

A: The data shows that 1080p provides the highest frame rates across all settings, with the Low preset achieving 94.1 FPS. However, 1440p Low at 73.9 FPS offers a strong balance of visual quality and performance.

Q: Why does the combo rank so low despite having a high-end CPU?

A: The combo ranks 1456th out of 1795 because the AMD Radeon RX 6600's performance, which sits in the 69th percentile of GPUs, limits the system. The CPU is in the 93rd percentile, but the game is heavily GPU-bound, as shown by the FPS scaling.

Q: Is the Ultra preset worth using with this hardware?

A: No, the Ultra preset offers no significant benefit over High. At 1440p, both presets produce identical 41.3 FPS, and at 1080p, Ultra is only 3.5 FPS lower than High, making the extra visual settings not worth the performance cost.

Q: How does the CPU's multi-threaded performance affect this game?

A: The CPU's Cinebench R23 multi-core score of 38607 is excellent, but the game does not appear to leverage it fully. The FPS drops with resolution are proportional to GPU load, indicating the CPU is not the limiting factor.

Q: Is 4K playable with this GPU?

A: At 4K, only the Low preset achieves above 55 FPS, with 55.8 FPS. Medium drops to 44.6 FPS, and High and Ultra fall below 31 FPS, making 4K playable only with significant visual compromises.

Q: What is the frame rate difference between Low and Ultra at 1080p?

A: At 1080p, the Low preset achieves 94.1 FPS, while Ultra achieves 51.2 FPS, a difference of 42.9 FPS. This shows the massive performance cost of high-end settings.

Measured FPS Breakdown

At 1920x1080, the Low preset delivers 94.1 FPS, which is the highest measurement in the entire dataset. The Medium preset achieves 72.7 FPS, High reaches 54.7 FPS, and Ultra drops to 51.2 FPS. The progression shows a 21.4 FPS drop from Low to Medium, a further 18.0 FPS drop to High, and a smaller 3.5 FPS drop to Ultra, indicating diminishing returns at the highest settings.

At 2560x1440, the Low preset produces 73.9 FPS, representing a 20.2 FPS decrease from 1080p Low. Medium drops to 54.5 FPS, while High and Ultra both produce 41.3 FPS. The identical scores for High and Ultra at this resolution suggest that the GPU is fully saturated, and the Ultra settings do not add any additional load that the GPU cannot already handle.

At 3840x2160, the Low preset achieves 55.8 FPS, which is still playable. Medium drops to 44.6 FPS, High falls to 30.5 FPS, and Ultra bottoms out at 29.7 FPS. The difference between High and Ultra at 4K is only 0.8 FPS, further confirming that the GPU is the bottleneck. The overall pattern shows that the RX 6600 cannot maintain 60 FPS at any resolution above 1080p, and even at 1080p, only the Low and Medium presets exceed 60 FPS.

GPU Role

The AMD Radeon RX 6600 is built on the RDNA 2.0 architecture with a Navi 23 chip, featuring 1792 shading units, 112 texture mapping units, and 64 render output units. Its boost clock of 2491 MHz and game clock of 2044 MHz provide substantial compute power, with an FP32 performance of 8.928 TFLOPS. The GPU's 8 GB of GDDR6 memory on a 128-bit bus delivers 224.0 GB/s of bandwidth, which is a critical factor in this game's performance.

The GPU's average benchmark score of 25235 places it in the 69th percentile of all GPUs, and its nearest rivals show a tight performance cluster. The AMD Radeon 890M scores 25246, the RX 580 2048SP scores 25287, the RX 6700M scores 25180, and the RTX 3060 Ti scores 25120. These results show that the RX 6600 is a mid-range card, and its performance in Microsoft Flight Simulator reflects this positioning.

The VRAM capacity of 8 GB appears to be a limiting factor at higher settings. The data shows that as resolution increases, the FPS drops disproportionately, which is consistent with the GPU running out of memory bandwidth. The 224.0 GB/s bandwidth is sufficient for 1080p gaming, but at 4K, the card struggles to maintain playable frame rates. The GPU's 28 ray accelerators and DirectX 12 Ultimate support are present, but the measured FPS indicates that the card's raw rasterization power is the primary constraint. The data suggests that this GPU is best suited for 1080p gaming, with 1440p being playable only at lower settings.