Microsoft Flight Simulator

The Intel Core i5-12400F and AMD Radeon RX 6800 XT combination delivers its best experience at 1440p with High settings, where the 73.5 FPS average balances visual fidelity with fluid motion for a flight simulator that prioritizes smoothness. At 1080p, the Ultra preset still holds 85.7 FPS, but the step down to High at 91.8 FPS provides headroom for the complex scenery that Microsoft Flight Simulator streams, making High the recommended default across all tested resolutions.

Settings Recommendations

The measured data points to High as the optimal preset for this pairing, regardless of resolution. At 4K, High averages 50.7 FPS, which is playable but below the 60 FPS threshold many simmers prefer. The Ultra preset at 4K drops to 51.1 FPS, nearly identical to High, meaning the extra visual load yields no meaningful performance penalty — but also no benefit worth the added strain on the GPU. At 1440p, High delivers 73.5 FPS, a comfortable margin above 60, while Medium hits 95.5 FPS for those who prioritize frame rate over detail. The 1080p results reinforce this: High at 91.8 FPS is the sweet spot, with Medium at 118.3 FPS and Low at 149.7 FPS showing the scaling potential if needed.

For users with high-refresh-rate 1080p displays, Medium at 118.3 FPS offers the best compromise between fluidity and visual richness. The Ultra preset at 1080p (85.7 FPS) is only 6.6% slower than High, so it is viable, but the gains over High are marginal in a game where draw distance and cloud rendering dominate perception. The data shows that the RX 6800 XT has enough headroom at 1080p to keep the i5-12400F fed, but the CPU becomes more relevant at lower settings where frame rates exceed 120 FPS.

FAQ

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

A: Yes, but with caveats. At 4K High the average is 50.7 FPS, and Ultra is 51.1 FPS. These are playable for a simulator, but the 1440p High result of 73.5 FPS suggests that resolution is the better target for consistent smoothness.

Q: How much performance is lost moving from 1080p to 1440p?

A: At High settings, the drop is from 91.8 FPS at 1080p to 73.5 FPS at 1440p, a reduction of 19.9%. At Ultra, the drop is smaller in absolute terms: 85.7 down to 68.9 FPS, a 19.6% decline, indicating the GPU is the primary limiter at these settings.

Q: Is the Ultra preset worth using over High?

A: The data suggests no. At 4K, Ultra (51.1 FPS) is only 0.4 FPS faster than High (50.7 FPS), which is within measurement noise. At 1440p, Ultra (68.9 FPS) is 6.3% slower than High (73.5 FPS), meaning the extra settings actually cost performance without a proportionally better experience.

Q: Does the CPU bottleneck this GPU at lower settings?

A: At 1080p Low, the combo reaches 149.7 FPS, and at 1080p Medium it hits 118.3 FPS. The scaling from Low to Medium (20.9% drop) and Medium to High (22.4% drop) shows the GPU is still the dominant factor, but the i5-12400F’s 6 cores and 12 threads handle the simulation logic well enough to avoid a hard ceiling below 150 FPS.

Q: What is the best resolution for a 60 FPS target?

A: 1440p High at 73.5 FPS exceeds the target comfortably. 4K High at 50.7 FPS falls short. If 4K is required, lowering to Medium (70.6 FPS) achieves the target, but the visual compromise is significant.

Q: How does this combo rank among all tested configurations?

A: It ranks 602nd out of 1795 tested combos, placing it in the top 33.5% of all pairings. This is a strong position for a mid-range CPU paired with a high-end GPU, confirming that the i5-12400F does not hold back the RX 6800 XT in this title.

CPU Role

The Intel Core i5-12400F contributes 6 cores and 12 threads, with a base clock of 2.50 GHz and a boost clock of 4.40 GHz. In Microsoft Flight Simulator, which relies heavily on single-thread performance for its simulation engine, the processor’s single-core benchmark results are telling: a 3DMark single-thread score of 909 and a Cinebench R23 single-core score of 2332. These numbers place the CPU in the 77th percentile of all processors, meaning it outperforms 77% of alternatives.

The CPU’s 18 MB of shared L3 cache helps with the streaming of terrain data, while the 10 nm Alder Lake architecture provides efficient instruction handling. The measured FPS data shows that at 1080p Low, the combo reaches 149.7 FPS, which is likely near the CPU’s practical limit for this game engine. At 1440p and 4K, the CPU has more headroom, as frame rates drop due to GPU load rather than processor limits. The i5-12400F’s 3DMark 16-thread score of 5895 and max-thread score of 5912 indicate that multi-threaded tasks, such as AI traffic and weather calculations, are handled capably, though the game’s primary thread remains the bottleneck at very high frame rates.

Measured FPS Breakdown

At 1920x1080, the combo produces 149.7 FPS on Low, 118.3 FPS on Medium, 91.8 FPS on High, and 85.7 FPS on Ultra. The gap between Low and Medium is 31.4 FPS (21.0%), while the gap between Medium and High is 26.5 FPS (22.4%). The Ultra preset is only 6.6% slower than High, suggesting diminishing returns at the highest settings.

At 2560x1440, the results are 124 FPS on Low, 95.5 FPS on Medium, 73.5 FPS on High, and 68.9 FPS on Ultra. The Low-to-Medium drop is 28.5 FPS (23.0%), and the Medium-to-High drop is 22.0 FPS (23.0%). The High-to-Ultra drop of 4.6 FPS (6.3%) is the smallest relative difference in any resolution, indicating that Ultra adds little overhead at 1440p.

At 3840x2160, the combo delivers 91.2 FPS on Low, 70.6 FPS on Medium, 50.7 FPS on High, and 51.1 FPS on Ultra. The Low-to-Medium drop is 20.6 FPS (22.6%), and the Medium-to-High drop is 19.9 FPS (28.2%). Unexpectedly, Ultra is 0.4 FPS faster than High, which is within margin of error but suggests the Ultra preset may not fully utilize the GPU’s resources at this resolution.

Resolution Scaling

The scaling from 1080p to 1440p at High settings shows a drop from 91.8 to 73.5 FPS, a 19.9% reduction. From 1440p to 4K at High, the drop is from 73.5 to 50.7 FPS, a 31.0% reduction. The larger drop at higher resolutions confirms that the RX 6800 XT becomes the limiting component as pixel count rises. This is expected for a GPU with 16 GB of GDDR6 memory and a 512.0 GB/s bandwidth, which has ample capacity but finite fill rate.

At Low settings, the scaling is steeper in percentage terms: 149.7 FPS at 1080p drops to 124 FPS at 1440p (17.2% reduction) and then to 91.2 FPS at 4K (26.5% reduction from 1440p). This pattern indicates that at Low settings, the CPU is more involved in maintaining frame rates, but the GPU still dominates the scaling. The Ultra preset shows the most consistent scaling: 85.7 FPS at 1080p, 68.9 FPS at 1440p (19.6% drop), and 51.1 FPS at 4K (25.8% drop). The data suggests that the combo is GPU-bound at all settings above Low, with the CPU providing a stable foundation that does not introduce irregular frame pacing.

How This Combo Ranks

The combo rank of 602 out of 1795 tested combinations places this pairing in the 66.5th percentile of all tested systems. This is a strong result for a CPU that sits in the 77th percentile of all processors and a GPU in the 87th percentile of all GPUs. The rank indicates that the pairing is well-balanced for this game, with neither component severely limiting the other.

In the CPU’s nearest rival comparisons, the i5-12400F scores 19221 on average, which is 0.1% higher than the Intel Core i7-8700K, 0.3% higher than the Intel Core i5-1335U, and 1.3% higher than the AMD EPYC 7773X. The RX 6800 XT averages 49982, which is 0.5% higher than the Intel Arc A550M, 1.9% higher than the NVIDIA CMP 50HX, and 2.6% higher than the NVIDIA GeForce RTX 4070 Ti SUPER. The GPU’s positive deltas against these rivals confirm that the RX 6800 XT is not the bottleneck in this combo.

GPU Role

The AMD Radeon RX 6800 XT provides 16 GB of GDDR6 memory on a 256-bit bus, with a bandwidth of 512.0 GB/s. Its base clock of 1825 MHz and boost clock of 2250 MHz, combined with 4608 shading units, yield a pixel rate of 288.0 GPixel/s and a texture rate of 648.0 GTexel/s. In Microsoft Flight Simulator, which renders vast terrains and complex cloud systems, the GPU’s FP32 performance of 20.74 TFLOPS is sufficient to drive high resolution with detailed textures.

The 4K results show the GPU’s limits: Ultra at 51.1 FPS and High at 50.7 FPS are nearly identical, suggesting that the GPU’s memory bandwidth is the constraining factor at this resolution. The 1440p results show more headroom, with High at 73.5 FPS and Medium at 95.5 FPS, indicating that the GPU can handle moderate settings well above 60 FPS. The 1080p results, particularly Low at 149.7 FPS, show that the GPU is capable of very high frame rates when the CPU is not the limiting factor.

The GPU’s 72 ray accelerators and DirectX 12 Ultimate support are relevant for future updates to this game, but the measured data only reflects current rasterization performance. The 16 GB VRAM is ample for this title’s high-resolution textures, and the 512.0 GB/s bandwidth ensures that texture streaming from system memory does not cause stutters.