Microsoft Flight Simulator

Microsoft Flight Simulator is a uniquely demanding title that stresses both the CPU and GPU in ways most other games do not. The data for the Intel Core i5-12400F paired with the NVIDIA GeForce GTX 1070 reveals a system that is consistently playable but requires deliberate settings management to achieve a smooth experience. The measured frame rates across three resolutions and four quality presets provide a clear picture of where this hardware combination excels and where it falls short.

Resolution Scaling

The performance drop from 1080p to 4K is steep but not uniform across presets, indicating a shifting bottleneck as resolution increases. At 1080p with Low settings, the combo achieves 80 FPS, but this falls to 65.3 FPS at 1440p and further to 45.6 FPS at 4K. This represents a 43% reduction from 1080p to 4K at Low settings, suggesting the GPU is becoming the primary limiting factor at higher resolutions, though the CPU still has headroom. At High settings, the scaling is more severe: 49.1 FPS at 1080p drops to 36.4 FPS at 1440p and 28.9 FPS at 4K, a 41% loss from 1080p to 4K. The Ultra preset tells a similar story, with 45.6 FPS at 1080p falling to 40.1 FPS at 1440p and 29 FPS at 4K.

The pattern shows that the GTX 1070’s 8 GB of GDDR5 memory and 256.3 GB/s bandwidth are sufficient for 1080p but struggle to maintain frame rates as pixel count quadruples. The gap between 1440p and 4K is particularly telling: at Medium settings, the drop from 53.6 FPS to 39.6 FPS is a 26% reduction, while at High settings the drop from 36.4 FPS to 28.9 FPS is 20%. This indicates that the GPU’s raw compute, rated at 6.463 TFLOPS FP32, is the dominant constraint at 4K. Notably, the difference between Low and Medium at 1080p is only 13 FPS (80 vs 67), but at 4K it shrinks to 6 FPS (45.6 vs 39.6), reinforcing that resolution scaling amplifies GPU load disproportionately to settings changes.

CPU Role

The Intel Core i5-12400F provides a solid foundation for Flight Simulator’s complex flight models and world simulation. With 6 cores and 12 threads, this Alder Lake-S processor clocks up to 4.40 GHz boost, and its 18 MB of shared L3 cache helps maintain consistent frame pacing. The CPU’s benchmark scores are respectable: a Cinebench R23 multi-core score of 16518 and a single-core score of 2332, with a Geekbench single-core score of 2221. In the context of this game, the single-thread performance is critical, as Flight Simulator’s main simulation loop often relies on fewer threads.

The data shows the CPU is not the primary bottleneck at 1080p Low, where the system hits 80 FPS. However, at 1080p Ultra, the frame rate drops to 45.6 FPS — the exact same figure as 4K Low — suggesting a different constraint. At 4K Low, the GPU is clearly limiting, but at 1080p Ultra, the increased draw calls and object complexity begin to tax the CPU’s 12 threads. The i5-12400F’s 3DMark scores support this: a single-thread score of 909 and a 16-thread score of 5895 show it can handle multi-threaded workloads, but Flight Simulator’s rendering pipeline may not scale perfectly across all cores. Compared to its nearest rivals, the i5-12400F sits within 0.7% of the AMD Ryzen 5 7533HS and 0.1% of the Intel Core i7-8700K in average benchmark score, indicating it holds its own against older high-end parts and newer mobile chips.

Settings Recommendations

Based on the measured rows, the optimal balance between visual fidelity and playability is achieved at 1080p with Medium settings, which delivers 67 FPS. This is 18 FPS higher than High settings at the same resolution (49.1 FPS) while still maintaining a substantial improvement over Low settings, which hit 80 FPS but sacrifice significant visual quality. At 1440p, Medium settings produce 53.6 FPS, which is playable but not ideal for fast-paced flight maneuvers; High settings at 1440p drop to 36.4 FPS, which may be acceptable for slower, scenic flights but risks stutter in dense urban areas.

For users prioritizing frame rate over visuals, 1080p Low at 80 FPS is the only preset that approaches a high-refresh experience. However, the jump from Low to Medium at 1080p only costs 13 FPS (from 80 to 67), making Medium a strong recommendation for most users. At 4K, all presets fall below 46 FPS, with Ultra at 29 FPS being nearly unplayable and Low at 45.6 FPS being borderline. The data suggests that 4K is not a viable option for this combo unless the user accepts Low settings and tolerates sub-50 FPS. The sweet spot is clearly 1080p Medium, which offers a 67 FPS average while allowing the GTX 1070’s 8 GB VRAM to manage textures effectively.

How This Combo Ranks

The combination of the Core i5-12400F and GTX 1070 ranks 1511 out of 1795 tested combos in Microsoft Flight Simulator, placing it in the bottom 16% of all tested configurations. This low rank is primarily attributable to the GPU’s age and position; the GTX 1070 sits at the 51st percentile among all GPUs, with an average benchmark score of 12331. Its nearest rivals include the NVIDIA Quadro K4200 (0.7% higher score), the GeForce GTX 880M (1.3% lower), and the GeForce GTX 1650 SUPER (1.4% lower). Despite being end-of-life, the GTX 1070 still outperforms some newer budget cards, but it lacks the headroom for Flight Simulator’s demanding rendering.

The CPU, by contrast, performs admirably, ranking at the 77th percentile among all CPUs with an average benchmark score of 19221. This places the i5-12400F ahead of the Intel Core i7-8700K by 0.1% and the Core i5-1335U by 0.3%, while trailing the AMD Ryzen 5 7533HS by 0.7%. The rank of 1511 reflects the GPU bottleneck more than the CPU’s capability; if paired with a more modern GPU, this processor would likely push the combo significantly higher in the rankings. The delta between the CPU’s strong percentile and the combo’s low rank underscores that Flight Simulator is heavily GPU-bound at higher resolutions, and the GTX 1070’s 51st percentile performance drags the overall result down.

GPU Role

The NVIDIA GeForce GTX 1070 is the primary limiting factor in this configuration, and its specifications explain the measured frame rates. With 8 GB of GDDR5 memory on a 256-bit bus providing 256.3 GB/s bandwidth, the card has enough VRAM for most textures at 1080p and 1440p, but the 4K results suggest memory bandwidth constraints. The GPU’s base clock of 1506 MHz and boost clock of 1683 MHz, paired with 1920 shading units, deliver 6.463 TFLOPS of FP32 compute. This is sufficient for 1080p Medium at 67 FPS, but the 4K Ultra average of 29 FPS indicates the card is overwhelmed by pixel fill requirements.

The GTX 1070’s benchmark scores reinforce this analysis: a PassMark G3D score of 13498 and a 3DMark Steel Nomad DX12 score of 1082 place it at the 51st percentile, meaning it outperforms roughly half of all GPUs tested but lags behind modern mid-range cards. Its nearest rivals, the GTX 1650 SUPER (12504 avg score) and GTX 880M (12490 avg score), are within 1.4% of its performance, showing that the 1070 remains competitive with newer budget offerings but has not aged gracefully. The card’s 150 W TDP and PCIe 3.0 x16 interface are adequate, but the lack of ray tracing cores and tensor cores means it relies purely on rasterization performance, which Flight Simulator’s DirectX 12 path can exploit only to a limited extent.

The data shows that the GPU’s role is decisive across all resolutions. At 1080p Low, the 80 FPS result suggests the CPU can feed the GPU adequately, but at 4K Low, the 45.6 FPS result is identical to 1080p Ultra, indicating that the GPU’s fill rate and memory bandwidth are the hard ceiling. The GTX 1070’s 8 GB VRAM is not the issue — Flight Simulator’s texture sizes are manageable at 1080p — but the 256.3 GB/s bandwidth becomes a bottleneck when rendering at higher pixel counts. For users of this combo, the GPU must be considered the limiting component, and any future upgrade path should prioritize replacing the GTX 1070 before the i5-12400F.