Microsoft Flight Simulator

# Microsoft Flight Simulator: AMD Ryzen 5 2600 + NVIDIA GeForce RTX 3080 Ti

This combination of a 2018-era six-core CPU with a 2021 flagship GPU produces a peculiar bottleneck profile in Microsoft Flight Simulator: the RTX 3080 Ti delivers strong raw frame rates, but the Ryzen 5 2600's modest single-thread performance becomes the decisive factor as resolution drops and settings scale. The measured data shows a system that is GPU-limited at 4K Ultra, but progressively CPU-bound at 1080p and lower presets, resulting in a narrower performance spread than the GPU's capabilities would suggest.

Resolution Scaling

The frame rate progression across resolutions reveals a classic case of diminishing returns from GPU headroom. At 4K Ultra, this combo averages 54 FPS, while dropping to 4K High improves that to 57 FPS — a mere 3 FPS gain. The jump from 4K Ultra to 4K Medium yields 76 FPS, and 4K Low produces 97 FPS. This pattern indicates that at 4K, the RTX 3080 Ti's rendering load dominates, but the CPU still exerts a ceiling.

Moving to 1440p, the scaling becomes more telling. Ultra sits at 74 FPS, High at 77 FPS, Medium at 100 FPS, and Low at 110 FPS. The gap between 4K Ultra (54) and 1440p Ultra (74) is 20 FPS, but the gap between 1440p Ultra and 1080p Ultra is only 17 FPS (91). The 1440p-to-1080p transition at High shows a 19 FPS improvement (77 to 96), yet at Low, the jump is just 8 FPS (110 to 118).

The most revealing data point is the 1080p Low result: 118 FPS. This is only 21 FPS higher than 4K Low (97), despite representing a 75% reduction in pixel count. A purely GPU-limited system would show a much larger delta. The 1080p Medium average of 108 FPS compares to 1440p Medium's 100 FPS, a modest 8 FPS gain that further confirms the CPU is the limiting factor at lower resolutions.

At 4K, the spread from Low to Ultra is 43 FPS (97 to 54), while at 1080p, that same spread is just 27 FPS (118 to 91). This compression of the settings range at lower resolutions is the signature of CPU saturation. The Ryzen 5 2600's six cores and 12 threads, running at a base of 3.40 GHz and boost of 3.90 GHz, cannot feed the RTX 3080 Ti fast enough to maintain proportional scaling below 1440p.

Benchmark results indicate that the optimal resolution for this pairing is 1440p, where the GPU still has meaningful work and the CPU bottleneck is less severe. At 1440p Medium, the system achieves 100 FPS, which is 24 FPS higher than 4K Medium and only 8 FPS lower than 1080p Medium — the sweet spot for balanced load.

GPU Role

The NVIDIA GeForce RTX 3080 Ti is the dominant component in this pairing, and its specifications explain why it can push high frame rates even with a modest CPU. The GPU features 12 GB of GDDR6X memory on a 384-bit bus, delivering 912.4 GB/s of memory bandwidth. This bandwidth is critical for Microsoft Flight Simulator, which streams large texture datasets for terrain and aircraft models.

The GPU's clock behavior — base 1365 MHz, boost 1665 MHz — combined with 10,240 shading units and 80 RT cores, provides substantial raw compute. The FP32 throughput of 34.10 TFLOPS is particularly relevant for the game's physics and rendering calculations. The 112 ROPs and 320 TMUs handle pixel fill and texture filtering, with a pixel rate of 186.5 GPixel/s and texture rate of 532.8 GTexel/s.

In the context of this game, the GPU's role is most evident at 4K Ultra, where the average of 54 FPS represents the system's worst-case scenario. The RTX 3080 Ti's percentile rank of 83 among all GPUs indicates it is a high-end part, but the measured results show it is not being fully utilized at lower settings. The 4K Low result of 97 FPS suggests the GPU could push much higher if the CPU allowed it.

The GPU's nearest rivals in synthetic benchmarks include the AMD Radeon Pro 5300 (0.8% lower average score) and the NVIDIA Tesla M40 24 GB (1.2% higher). These deltas are small, but the RTX 3080 Ti's real-world advantage in Microsoft Flight Simulator comes from its 12 GB VRAM and GDDR6X bandwidth, which prevent texture thrashing at high resolutions.

Comparing the 4K Medium result (76 FPS) to the 1440p Medium result (100 FPS) shows a 24 FPS drop when resolution increases by 2.25x pixel count. This is less than the proportional pixel increase would suggest, meaning the GPU is still delivering solid performance but the CPU is starting to interfere. The GPU's 83rd percentile ranking and average benchmark score of 41187 place it well above the 50th percentile, yet the combo rank of 1220 out of 3714 (top 33%) shows that the CPU drags the overall system down.

CPU Role

The AMD Ryzen 5 2600 is the bottleneck in this configuration, and the measured FPS data makes that clear. This CPU has 6 cores and 12 threads, with a base clock of 3.40 GHz and boost of 3.90 GHz. Its architecture is Zen (Pinnacle Ridge) on a 12 nm process, with 16 MB of shared L3 cache. The 65 W TDP and dual-channel DDR4 memory support (46.9 GB/s bandwidth) are modest by modern standards.

The CPU's benchmark scores reveal its strengths and weaknesses. In Cinebench R15, it scores 1248 multicore and 157.3 singlecore. The singlecore result is particularly telling: 157.3 points is low compared to modern CPUs, and Microsoft Flight Simulator is known for heavy single-thread reliance. Geekbench scores of 5648 multicore and 1154 singlecore confirm this pattern — the multicore score is respectable, but the singlecore score lags.

The PassMark results show a similar story. The CPU achieves 13160 in multithread, 2239 in single-thread, and 673 in physics. The physics score of 673 is notably low and directly impacts simulation games. The floating point math score of 22942 and integer math score of 44518 are moderate, but the find prime numbers score of 37 is exceptionally weak, indicating limited ALU throughput for certain workloads.

The CPU's percentile rank of 75 among all CPUs places it in the upper quartile, but its nearest rivals include the Intel Core Ultra 5 228V (0.2% higher average) and Intel Core i9-11900H (0.5% higher). These are laptop-class parts, which shows the Ryzen 5 2600 is competitive with mobile CPUs but not with desktop parts from the same era. The AMD EPYC 9454 is 1.2% higher, a server chip that also outperforms it.

In game terms, the CPU bottleneck manifests as a hard ceiling on frame rates. At 1080p Low, the system hits 118 FPS, but at 1080p Medium it drops to 108 FPS, and at 1080p High it's 96 FPS. The delta between Low and High at 1080p is 22 FPS, while at 4K that same delta is 43 FPS. This means at 1080p, the CPU is the limiting factor, and GPU settings have less impact.

The 1080p Medium min FPS of 92 and max of 124 show variability that indicates CPU frame pacing issues. The 1440p Medium min of 85 and max of 115 show similar spread. The 4K Medium min of 64 and max of 87 show tighter clustering, suggesting the GPU is more consistently the limiter at higher resolutions.

FAQ

Q: Why does the frame rate barely improve when going from 1440p to 1080p at Low settings?

A: The measured data shows 110 FPS at 1440p Low versus 118 FPS at 1080p Low, a gain of only 8 FPS. This small delta indicates the Ryzen 5 2600's single-thread performance (Cinebench R15 singlecore score of 157.3) becomes the limiting factor at lower resolutions, preventing the RTX 3080 Ti from achieving proportionally higher frame rates.

Q: Is this combo better at 4K or 1440p?

A: The data favors 1440p for overall smoothness. At 1440p Medium, the system averages 100 FPS with a minimum of 85 FPS, while at 4K Medium it averages 76 FPS with a minimum of 64 FPS. The 1440p results offer higher averages and better minimums, making the experience more consistent.

Q: How does the Ryzen 5 2600 compare to its nearest CPU rivals?

A: The Ryzen 5 2600's average benchmark score of 21484 is nearly identical to the Intel Core Ultra 5 228V (21440, 0.2% higher) and Intel Core i9-11900H (21367, 0.5% higher). It is slightly ahead of the AMD EPYC 9454 (21223, 1.2% lower), showing it remains competitive with a range of modern parts.

Q: What does the 4K Ultra result of 54 FPS tell us about the GPU?

A: The 54 FPS average at 4K Ultra represents the RTX 3080 Ti operating at near-full load. Given the GPU's 83rd percentile ranking and 12 GB GDDR6X memory with 912.4 GB/s bandwidth, this result is consistent with a high-end GPU being pushed to its limits rather than being held back by the CPU.

Q: Why is the 1080p High result (96 FPS) lower than the 1440p Low result (110 FPS)?

A: This counterintuitive result occurs because at 1080p High, the CPU bottleneck is more pronounced than at 1440p Low. The lower resolution reduces GPU load, but the CPU's single-thread ceiling (boost clock of 3.90 GHz) prevents it from delivering higher frame rates, making the higher-resolution setting paradoxically faster in average FPS.

Q: What is the most stable frame rate this combo can deliver?

A: The 1080p Medium setting provides the most consistent experience, with an average of 108 FPS and a tight min-max range of 92-124 FPS. This narrow spread indicates the system can maintain stable performance at this setting without the severe CPU-related frame dips seen at lower resolutions.

How This Combo Ranks

The combo ranks 1220 out of 3714 tested combinations, placing it in the 67th percentile of all CPU+GPU pairings tested in Microsoft Flight Simulator. This ranking is notably lower than the individual components' percentiles — the CPU at 75th percentile and GPU at 83rd percentile — which demonstrates that the pairing is suboptimal for this specific game.

The gap between the combo's rank and the component percentiles highlights the CPU bottleneck. With a GPU that ranks in the top 17% of all GPUs, one would expect a higher overall ranking, but the Ryzen 5 2600's single-thread limitations (Cinebench R15 singlecore of 157.3) hold back the system. The 3714 total combos include many with newer CPUs that better feed high-end GPUs.

In practical terms, this ranking means the combo outperforms 67% of tested configurations, which sounds respectable. However, given that the RTX 3080 Ti is an end-of-life flagship with a launch MSRP of 1,199 USD, the expectation would be for a top-25% ranking. The data shows that the CPU is the primary reason for this shortfall.

The GPU's nearest rivals in synthetic benchmarks — the AMD Radeon Pro 5300 at 0.8% lower and NVIDIA Tesla M40 24 GB at 1.2% higher — all rank lower than the RTX 3080 Ti in overall GPU percentile. Yet in this game, the combo's ranking is determined more by the CPU's ability to feed the GPU than by raw GPU power.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and the user's preference for average FPS versus consistency.

For 4K users, the Medium preset at 76 FPS average (min 64, max 87) is the best balance. The High preset at 57 FPS and Ultra at 54 FPS are too close to the 60 FPS threshold to provide a comfortable margin, while Low at 97 FPS sacrifices visual quality for headroom that the CPU cannot fully exploit at this resolution. Medium offers a 22 FPS improvement over High while maintaining acceptable visual fidelity.

For 1440p, the Medium preset delivers 100 FPS average with an 85 FPS minimum, making it the smoothest option. The High preset at 77 FPS and Ultra at 74 FPS are both playable but leave no margin for demanding scenes. Low at 110 FPS is faster but the visual downgrade is significant, and the 10 FPS gain over Medium is not worth the quality loss.

For 1080p, the Medium preset at 108 FPS average (min 92, max 124) is the recommended choice. The Ultra preset at 91 FPS is playable, but the 17 FPS penalty compared to Medium is substantial given the CPU bottleneck. High at 96 FPS is nearly identical to Ultra, suggesting diminishing returns. Low at 118 FPS offers the highest average but the lowest visual quality, and the 10 FPS gain over Medium is marginal.

The data shows that Medium is the sweet spot across all resolutions for this combo. At 4K Medium, 1440p Medium, and 1080p Medium, the system delivers 76, 100, and 108 FPS respectively, with minimums of 64, 85, and 92 FPS. These results indicate that Medium settings best balance the RTX 3080 Ti's capabilities against the Ryzen 5 2600's limitations, providing playable frame rates with consistent minimums across the resolution spectrum.