Microsoft Flight Simulator

The Intel Core i5-12400F paired with the NVIDIA GeForce RTX 5070 delivers a compelling experience in Microsoft Flight Simulator, but the data reveals that this combo is primarily GPU-bound at higher resolutions. The measured frame rates show a clear narrative: the RTX 5070 has enough headroom to push well past 100 FPS at 1080p, but the demands of 4K Ultra bring the system to its knees. This pairing ranks in the 80th percentile of all tested combos, indicating strong overall performance, yet the scalability across settings highlights where the bottlenecks lie.

Resolution Scaling

The transition from 1080p to 4K produces a dramatic and predictable drop in frame rates across all settings, confirming that the RTX 5070 is the dominant limiting factor at higher resolutions. At Low settings, the average FPS falls from 176 at 1920x1080 to 142 at 2560x1440, a 19.3% reduction, and then further to 105 at 3840x2160, which is a 40.3% drop from the 1080p baseline. This steep decline indicates that the GPU is being saturated as pixel count increases, with the CPU’s 6 cores and 12 threads providing adequate support even at the lowest settings.

Moving to Medium settings, the same pattern holds: 137 FPS at 1080p drops to 110 FPS at 1440p (a 19.7% decrease) and then to 81 FPS at 4K (a 40.9% decrease from 1080p). The consistency of these percentage drops—roughly 19% for the 1080p-to-1440p step and another 21% for the 1440p-to-4K step—suggests a linear scaling relationship tied directly to pixel throughput. This is classic GPU-bound behavior, where the rendering load grows proportionally with resolution, and the CPU’s performance ceiling is not being approached.

At High settings, the pattern is slightly less steep: 103 FPS at 1080p, 83 FPS at 1440p (a 19.4% drop), and 61 FPS at 4K (a 40.8% drop from 1080p). The Ultra preset tells a similar story, with 98 FPS at 1080p, 79 FPS at 1440p (a 19.4% drop), and 58 FPS at 4K (a 40.8% drop). Notably, the difference between High and Ultra at each resolution is small—around 5 FPS at 1080p and 3 FPS at 4K—indicating that the Ultra preset’s additional visual fidelity comes at a minimal performance cost relative to the resolution scaling penalty.

The data shows that the i5-12400F is not the bottleneck in this configuration. If the CPU were the limiting factor, we would expect to see frame rates plateau or scale non-linearly as resolution increases, but the consistent percentage drops point squarely at the GPU. At 1080p Low, the 176 FPS average suggests the CPU can feed the GPU effectively, and the RTX 5070’s 12 GB of GDDR7 memory and 672.0 GB/s bandwidth are sufficient to handle the geometry and texture loads of this flight simulator without stalling.

GPU Role

The NVIDIA GeForce RTX 5070 is the workhorse of this combo, and its specifications explain the observed performance envelope. With a boost clock of 2512 MHz and 6144 shading units, the GPU delivers 30.87 TFLOPS of FP32 compute, which is more than adequate for the DirectX 12 workloads in Microsoft Flight Simulator. The 12 GB of GDDR7 memory on a 192-bit bus provides 672.0 GB/s of bandwidth, a figure that proves sufficient even at 4K Ultra, where the average FPS bottoms out at 58.

The GPU’s memory configuration is particularly relevant for this game, which is known for streaming large terrain and photogrammetry data. At 4K Medium, the combo achieves 81 FPS with a minimum of 69 FPS, suggesting that the memory subsystem can handle the data flow without causing frame-time spikes. The 80 ROPs and 192 TMUs ensure that texture fill rates are not a constraint, as evidenced by the relatively small gap between High and Ultra settings at any given resolution.

The RTX 5070’s percentile ranking of 82 against all GPUs places it in the upper tier of graphics cards, and its nearest rivals in synthetic benchmarks—AMD Radeon Pro 580 and AMD Radeon Pro WX 7100—are within 1% of its average score. However, those rivals are workstation cards with different driver optimizations, so the real-world gaming performance here relies on the Blackwell 2.0 architecture’s DirectX 12 Ultimate support. The GPU’s 48 RT cores and 192 tensor cores are present but not heavily utilized in this simulator, which favors raw rasterization throughput.

At 4K Ultra, the 58 FPS average is borderline playable, but the lack of a minimum FPS figure in the data suggests that frame pacing may be inconsistent. The 4K Medium result, with a 69 FPS minimum and 94 FPS maximum, shows a wider variance that points to occasional CPU or driver overhead spikes. Still, the GPU’s 250 W TDP and PCIe 5.0 x16 interface ensure it is not power-limited in this configuration, and the dual-slot cooler keeps thermals in check during extended sessions.

How This Combo Ranks

In the context of all tested hardware combinations, this pairing of the i5-12400F and RTX 5070 achieves a combo rank of 729 out of 3714, placing it in the top 19.6% of systems. This is a strong result for a mid-range CPU paired with a high-end GPU, and it indicates that the i5-12400F does not significantly drag down the RTX 5070’s potential in this specific title. The CPU’s own percentile ranking of 73 against all processors, with an average benchmark score of 19039, shows it is a capable partner, though it sits just below the top quartile.

The nearest CPU rivals in synthetic benchmarks—AMD Ryzen 5 7535HS, Intel Core 3 201E, Intel Core i5-1335U, and AMD EPYC 7773X—are all within 0.3% of the i5-12400F’s average score, meaning any of these processors would likely produce similar frame rates in this game. This suggests that the combo’s ranking is driven more by the GPU than the CPU, as the RTX 5070’s nearest rivals (AMD Radeon Pro 580, Radeon Pro WX 7100, Radeon Pro 5300, and RTX A500 Mobile) are all professional-grade cards with different performance characteristics.

The gap between this combo’s rank and the top of the list is attributable to the CPU’s 6-core/12-thread configuration, which, while sufficient for most scenarios, may not match the multi-threaded performance of higher-end processors in CPU-heavy segments of the simulator. The i5-12400F’s Cinebench R23 multicore score of 12380 and Geekbench multicore score of 9472 are respectable but not class-leading. In practice, this means the combo excels at GPU-bound scenes—such as high-altitude cruising or dense cloud layers—but may show slight frame dips in complex airport environments where the CPU has to process more simulation logic.

Settings Recommendations

For the best balance of visual fidelity and smooth performance, the Medium preset at 2560x1440 is the standout choice. It delivers 110 FPS average with a 94 FPS minimum, ensuring consistent frame times that are well above the 60 FPS threshold for a flight simulator. The 1440p Medium setting also outperforms the 4K High setting (61 FPS) by a wide margin, making it the practical sweet spot for this hardware.

At 1920x1080, the High preset is the recommended option, providing 103 FPS average while maintaining higher visual quality than Medium. The jump from Medium to High at 1080p costs 34 FPS (from 137 to 103), which is a significant trade-off, but the resulting 103 FPS still leaves ample headroom for frame drops. The Ultra preset at 1080p (98 FPS) is nearly identical to High, so the extra visual settings are not worth the slight performance loss.

For 4K gaming, the Low preset is the only viable option for high refresh rates, hitting 105 FPS average. The Medium preset at 4K (81 FPS) is playable and offers much better visuals, but the 69 FPS minimum could cause noticeable stutters in dense scenery. The High and Ultra presets at 4K (61 FPS and 58 FPS, respectively) are too close to the 60 FPS line for comfort, making them risky choices for a game that emphasizes smooth camera pans.

The data strongly suggests that users should prioritize resolution over preset quality with this combo. The RTX 5070’s 12 GB VRAM is not exhausted at any tested setting, so the limiting factor is raw processing power rather than memory capacity. Choosing 1440p Medium or High offers the most predictable experience, while 4K should be reserved for Low or Medium presets when visual detail is less critical than frame rate stability.

Measured FPS Breakdown

At 1920x1080, the full range of settings is well represented. Low settings produce an average of 176 FPS, which is the highest score in the entire dataset and indicates that the CPU-GPU pair has significant headroom at this resolution. Medium settings yield 137 FPS average with a minimum of 116 FPS and a maximum of 157 FPS, showing a 41 FPS spread that is typical for a simulator with variable scene complexity. High settings drop to 103 FPS average, and Ultra settings settle at 98 FPS, meaning the difference between High and Ultra is just 5 FPS—a negligible penalty for maxing out the preset.

At 2560x1440, the pattern repeats with lower absolute numbers. Low settings achieve 142 FPS average, Medium hits 110 FPS (minimum 94, maximum 127), High reaches 83 FPS, and Ultra bottoms out at 79 FPS. The 1440p Medium result is particularly notable because its 94 FPS minimum is still above the 60 FPS threshold, making it the most reliable setting for consistent gameplay at this resolution. The gap between High and Ultra at 1440p is only 4 FPS, again suggesting that the Ultra preset is not worth the extra GPU load.

At 3840x2160, the performance cliff is evident. Low settings manage 105 FPS average, which is impressive for 4K but requires sacrificing most visual features. Medium settings produce 81 FPS average with a 69 FPS minimum and 94 FPS maximum, indicating that even this mid-tier preset can dip below the desired 60 FPS floor in heavy scenes. High settings drop to 61 FPS average, which is technically playable but leaves no margin for error, and Ultra settings fall to 58 FPS average, which is below the 60 FPS target and could result in visible judder during fast maneuvers.

The measured data includes minimum and maximum FPS only for the Medium preset at each resolution, which provides a useful window into frame variance. At 1080p Medium, the 116-157 FPS range shows a 35% variance, while at 1440p Medium the 94-127 FPS range shows a 35% variance, and at 4K Medium the 69-94 FPS range shows a 36% variance. This consistent variance across resolutions reinforces the GPU-bound conclusion, as the relative spread does not change with pixel count.

FAQ

Q: Is this combo capable of 60 FPS at 4K Ultra in Microsoft Flight Simulator?

A: No. The measured average FPS at 3840x2160 with Ultra settings is 58 FPS, which is 2 FPS below the 60 FPS target. The High preset at 4K achieves 61 FPS average, but this is marginal, and the Medium preset (81 FPS) is the only 4K option that provides comfortable headroom above the threshold.

Q: How much performance is lost when moving from 1080p to 4K?

A: At Low settings, the average FPS drops from 176 at 1080p to 105 at 4K, a 40.3% reduction. At Medium settings, the drop is from 137 to 81, a 40.9% reduction. At High settings, the drop is from 103 to 61, a 40.8% reduction, and at Ultra settings, it is from 98 to 58, a 40.8% reduction. The consistent ~40% loss indicates GPU-bound scaling.

Q: What is the best preset for smooth gameplay at 1440p?

A: The Medium preset at 2560x1440 delivers 110 FPS average with a 94 FPS minimum, making it the most reliable choice for maintaining high frame rates. The High preset (83 FPS) is also viable, but the minimum FPS data is not provided, so Medium offers the best documented guarantee of smoothness.

Q: Does the Intel Core i5-12400F bottleneck the RTX 5070 in this game?

A: No. The consistent percentage drops in FPS across resolutions (approximately 19% for 1080p-to-1440p and 21% for 1440p-to-4K) indicate that the GPU is the limiting factor. If the CPU were the bottleneck, frame rates would not scale linearly with resolution, and the 176 FPS result at 1080p Low shows the CPU can feed the GPU effectively.

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

A: This pairing achieves a combo rank of 729 out of 3714 tested combinations, placing it in the top 19.6%. The CPU’s percentile of 73 and GPU’s percentile of 82 against their respective populations show that the GPU is the stronger component in this pairing.

Q: Is the RTX 5070’s 12 GB VRAM sufficient for this game at 4K?

A: Yes. The measured results show no evidence of VRAM-related stuttering or crashes, and the 4K Medium preset delivers 81 FPS with a 69 FPS minimum. The 672.0 GB/s memory bandwidth and 12 GB capacity are adequate for the texture and geometry data in Microsoft Flight Simulator at the tested settings.