Microsoft Flight Simulator

Microsoft Flight Simulator is a uniquely demanding title, and the combination of the Intel Core i5-12400F and AMD Radeon RX 6750 XT delivers a clear, predictable performance curve. The data shows a system that is firmly balanced between CPU and GPU, with the bottleneck shifting decisively based on the resolution and quality preset selected. For a flight sim that rewards smooth frame pacing, this pairing offers a solid, if not spectacular, experience across the board, with the most compelling results found at 1440p.

Resolution Scaling

The performance drop from 1080p to 4K is steep and tells a classic story of GPU-bound scaling. At Low settings, the average frame rate falls from 127.8 FPS at 1920x1080 to 74.2 FPS at 3840x2160, a reduction of approximately 42%. This substantial decline indicates that at 1080p, the CPU is doing the heavy lifting, and as resolution increases, the GPU is progressively loaded, becoming the primary limiting factor. The scaling is less dramatic at higher presets, where the GPU is already stressed: moving from 1080p to 4K on Ultra settings sees the average drop from 72.2 FPS to 41.5 FPS, a 43% decrease.

The pattern confirms that the RX 6750 XT is the limiting component at 4K. The gap between 1440p and 4K is particularly punishing, with High settings falling from 59.5 FPS to 41.4 FPS. This suggests that 4K is only viable for this combo at Low or Medium settings, where the 74.2 and 57.8 FPS averages respectively are playable. Conversely, at 1080p, the CPU's 6 cores and 12 threads are more likely to be the constraint, especially at Low settings where the 127.8 FPS average shows the GPU is not being fully utilized. The data indicates that this system scales predictably, with the GPU's 12 GB of VRAM and 432.0 GB/s bandwidth handling the increased pixel count until the sheer compute load becomes too great.

How This Combo Ranks

In the grand database of tested combinations, this pairing ranks 857th out of 1795 combos, placing it in the upper-middle tier of all systems. This percentile position is consistent with a mid-range CPU and GPU pairing that excels in some scenarios but is outpaced by higher-end hardware. The rank is not a measure of failure; rather, it reflects the balanced nature of these components. The Intel Core i5-12400F sits in the 77th percentile of all CPUs, while the AMD Radeon RX 6750 XT is in the 79th percentile of all GPUs, so the pair is well-matched in terms of their overall benchmark standing.

The combo's rank within this specific game is more telling. Given that Microsoft Flight Simulator is known for its heavy CPU usage, the i5-12400F's performance is crucial. The CPU's nearest rival, the Intel Core i7-8700K, has a nearly identical average score (19210 vs 19221), showing that the i5 holds its own against older high-end chips. However, the GPU's nearest rival, the NVIDIA GeForce RTX 3080, has a slightly higher average score (35787 vs 35327), indicating the RX 6750 XT is a step below that tier of performance. This combination's rank of 857 suggests that while it will handle the game, there are many combinations with more headroom for maximum settings.

CPU Role

The Intel Core i5-12400F is a 6-core, 12-thread processor based on the Alder Lake architecture, with a base clock of 2.50 GHz and a boost clock of 4.40 GHz. In CPU-bound scenarios, such as this game at lower resolutions, these cores are the primary drivers of performance. The 3DMark single-thread score of 909 and multi-thread score of 5912 indicate solid single-core performance, which is critical for flight simulators that often rely on a few heavily loaded threads for physics and flight model calculations. The CPU's 18 MB of shared L3 cache is also beneficial for handling the large streaming world data.

The benchmark data shows that this CPU is a capable partner, but it is not a top-tier performer. Its average benchmark score of 19221 places it just 0.1% ahead of the Intel Core i7-8700K and 1.3% ahead of the AMD EPYC 7773X, but 0.7% behind the AMD Ryzen 5 7533HS. This means the i5-12400F is in a competitive cluster, but it lacks the raw multi-core dominance to push the highest frame rates in CPU-heavy titles. In practice, this means at 1080p Low settings, the 127.8 FPS average is likely limited by the CPU's ability to feed the GPU, rather than the GPU's capacity to render frames.

Measured FPS Breakdown

The measured FPS data provides a granular view of this combo's capabilities across resolutions and presets. At 1920x1080, the system is highly capable, with Low settings producing an average of 127.8 FPS. Medium settings yield 101.1 FPS, High settings drop to 73.6 FPS, and Ultra settings bottom out at 72.2 FPS. The difference between High and Ultra is minimal at this resolution, suggesting a CPU or driver overhead limit is being reached, not a GPU one.

Moving to 2560x1440, the performance remains strong. Low settings average 98.8 FPS, which is still very smooth. Medium settings deliver 77.3 FPS, and High settings hit 59.5 FPS. Ultra settings at 1440p produce an average of 58 FPS, which is on the lower edge of playable for a simulator. At 3840x2160, the GPU is clearly the bottleneck. Low settings average 74.2 FPS, but Medium drops to 57.8 FPS. High and Ultra settings are nearly identical, with averages of 41.4 and 41.5 FPS respectively, indicating that the GPU has hit a hard performance wall. This pattern shows that for a consistent 60 FPS experience, 1440p with Medium or High settings is the sweet spot.

GPU Role

The AMD Radeon RX 6750 XT is built on the RDNA 2.0 architecture and features 12 GB of GDDR6 memory on a 192-bit bus, delivering 432.0 GB/s of bandwidth. With a boost clock of 2600 MHz and a game clock of 2495 MHz, it provides 13.31 TFLOPS of FP32 compute power. In this game, the GPU's role becomes paramount at higher resolutions, where the 12 GB VRAM is sufficient for high-resolution textures, but the raw pixel throughput is challenged. The 3DMark Steel Nomad DX12 score of 2548 and a Passmark G3D score of 20700 place it in the 79th percentile of all GPUs, a strong showing for a 1440p-focused card.

The GPU's nearest rival, the AMD Radeon RX 5600M, has a nearly identical average score, but the NVIDIA GeForce RTX 3080 is 1.3% ahead. This marginal difference highlights that the RX 6750 XT is positioned just below high-end enthusiast cards. In practice, this is evident in the 4K results, where the card struggles to maintain playable frame rates at High or Ultra presets. The 6-pin and 8-pin power connectors and 250 W TDP indicate this is a power-hungry card, but the data shows it is best utilized at 1440p, where it can deliver a smooth experience without being overburdened.

FAQ

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

A: The data shows that 2560x1440 offers the best balance. At Medium settings, the combo achieves 77.3 FPS, and at High settings, it hits 59.5 FPS, which is smooth enough for a simulator.

Q: Can this system handle 4K gaming in this title?

A: Yes, but only at lower presets. At 3840x2160 with Low settings, the combo averages 74.2 FPS, and at Medium settings, it averages 57.8 FPS. High and Ultra settings fall below 42 FPS, which is not ideal.

Q: How does the CPU compare to its nearest rival, the Intel Core i7-8700K?

A: The Intel Core i5-12400F has an average benchmark score of 19221, which is 0.1% higher than the Intel Core i7-8700K's score of 19210. The performance is virtually identical.

Q: Is the GPU the bottleneck at 1080p?

A: No. At 1920x1080 Low settings, the combo achieves 127.8 FPS, and the jump from High (73.6 FPS) to Ultra (72.2 FPS) is tiny. This indicates the CPU is the limiting factor at this resolution, not the GPU.

Q: What is the difference between High and Ultra settings at 1440p?

A: The difference is minimal. High settings average 59.5 FPS, while Ultra settings average 58 FPS. The 1.5 FPS gap suggests the system is hitting a performance ceiling unrelated to the preset.

Q: Does the 12 GB VRAM of the GPU help at 4K?

A: The 12 GB memory is sufficient, but the compute power is the constraint. At 4K, the GPU's 13.31 TFLOPS is not enough to maintain high frame rates at High or Ultra presets, regardless of the VRAM capacity.

Settings Recommendations

For the best overall experience, the data points to 2560x1440 with Medium settings. This configuration yields an average of 77.3 FPS, providing a fluid and responsive simulation without sacrificing too much visual fidelity. The step up to High settings at 1440p is not worth the performance cost, as the average drops to 59.5 FPS, which is still playable but less comfortable for a game that requires precise control.

At 1920x1080, High settings are recommended. The average of 73.6 FPS is smooth, and the difference from Ultra (72.2 FPS) is negligible, meaning you can save on processing overhead without a visual penalty. For 4K, stick to Low settings for a playable 74.2 FPS average. Medium settings at 4K are borderline at 57.8 FPS, but the visual improvement may not justify the frame rate dip. Ultimately, the data suggests that this combo is best experienced at 1440p, where it can deliver a strong performance without being pushed to its limits.