Microsoft Flight Simulator

The Intel Core i5-12600KF paired with the NVIDIA GeForce RTX 4090 is an exceptionally potent combination for Microsoft Flight Simulator, a title notorious for its demanding rendering of terrain and weather. The benchmark data shows that this pairing not only clears the 60 FPS playable threshold at every tested resolution but does so with significant headroom, allowing users to prioritize visual fidelity without sacrificing smoothness.

Best Settings per Resolution

At 3840x2160 (4K), the most demanding preset that maintains an average frame rate at or above 60 FPS is Ultra, which delivers an average of 76.4 FPS. This is a critical result, as it indicates the GPU and CPU have enough combined throughput to handle the game's highest fidelity assets, including dense photogrammetry and volumetric clouds, at native 4K resolution. The step down to High settings yields a modest increase to 79.9 FPS, showing that the Ultra preset is not a significant performance cliff at this resolution.

Moving to 2560x1440 (1440p), the headroom expands considerably. The Ultra preset remains the best choice, producing an average of 104.2 FPS. This frame rate comfortably exceeds the 60 FPS threshold, providing a smoother experience for users with high-refresh-rate monitors. The data indicates that the system is not bottlenecked by the CPU at this resolution, as the frame rate scales well with the lower pixel count.

At 1920x1080 (1080p), the combination is overwhelmingly powerful. The Ultra preset runs at an average of 132.4 FPS. This high frame rate suggests that the system is capable of driving high-refresh-rate 1080p displays fully, even in a simulation that often taxes single-core performance. The performance gap between Medium (181.8 FPS) and Ultra (132.4 FPS) is substantial, but the absolute frame rate at Ultra is so high that it remains the optimal setting for visual quality.

CPU and GPU Roles

The performance scaling across resolutions reveals a clear division of labor between the Intel Core i5-12600KF and the NVIDIA GeForce RTX 4090. At 1920x1080, the GPU has less rendering work per pixel, which allows the CPU to become a more significant factor. The data shows a steep drop from Low (205.3 FPS) to Ultra (132.4 FPS), a 35% reduction. This indicates that while the GPU is still rendering the scene, the CPU's instruction throughput is critical for maintaining the physics and simulation logic, which becomes relatively more important at lower resolutions.

As the resolution increases to 2560x1440, the GPU's workload grows. The frame rates decrease across all settings compared to 1080p, but the relative scaling remains consistent. The difference between Low (187 FPS) and Ultra (104.2 FPS) is now a 44% drop. This widening gap suggests that the RTX 4090's raw pixel-pushing power is starting to become the primary limiter, though the CPU still has ample headroom, as evidenced by the high average frame rates.

At 3840x2160, the GPU is unequivocally the dominant component. The pixel count quadruples compared to 1080p, placing immense strain on the RTX 4090. The average frame rates compress significantly, with Low at 137 FPS and Ultra at 76.4 FPS, a 44% reduction from Low to Ultra. The fact that the frame rate at 4K Ultra is still nearly as high as the 1080p Ultra score from a weaker GPU configuration (hypothetically) shows that the scaling is almost entirely GPU-bound here. The CPU's role diminishes, as the GPU's fill rate and memory bandwidth (1.01 TB/s) become the decisive factors.

How This Combo Ranks

In the comprehensive database of tested hardware combinations, this specific pairing of the Core i5-12600KF and RTX 4090 achieves a combo rank of 117 out of 3714 tested combos. This places it in the top 3.2% of all systems tested for this game. The percentile standing reflects the balance of the components; while the RTX 4090 is an end-of-life flagship, the i5-12600KF is a mid-range CPU that provides the necessary single-threaded performance without creating a significant bottleneck.

The high rank is driven almost entirely by the GPU's massive compute resources. The RTX 4090 sits in the 88th percentile of all GPUs, with an average benchmark score of 60347. The CPU, while less dominant, is still solid, ranking in the 79th percentile of all CPUs with an average score of 27799. The combination of a top-tier GPU with a strong upper-midrange CPU proves to be highly effective for Microsoft Flight Simulator, which is known to favor a balance of high core count and high clock speeds.

Similar Performance Alternatives

For the CPU, the Intel Core i5-12600KF is closely matched by several other processors, meaning users with these alternatives would see nearly identical performance. The Intel Core i9-10900K has an average score of 27872, which is 0.3% lower than the i5-12600KF's score. Similarly, the AMD Ryzen 7 5800X3D scores 27896, also 0.3% lower, and the AMD Ryzen 7 6800U scores 27887, again 0.3% lower. These negligible deltas suggest that in CPU-bound scenarios, these chips would perform within a fraction of a percent of the i5-12600KF.

On the GPU side, the RTX 4090's nearest rivals are a mix of professional and workstation cards, indicating that its performance tier is isolated from mainstream gaming GPUs. The Intel Arc Pro A60 has a score of 60326, showing a 0% delta, meaning it performs identically in synthetic benchmarks. The AMD Radeon Pro Vega 48 trails by 0.3% with a score of 60140. The AMD Radeon Pro W6600M is actually 2.5% faster with a score of 61896, while the AMD Radeon PRO V710 is 2.9% slower at 58657. These alternatives are not directly comparable in gaming scenarios, but the data shows that the RTX 4090's raw compute power is at the apex of the tested hardware pool.

Measured FPS Breakdown

The measured frame rates provide a complete picture of performance across all settings.

At 1920x1080:

• Low: Average 205.3 FPS. This is the highest frame rate recorded for the entire combo, showing the absolute ceiling of the system's capability.
• Medium: Average 181.8 FPS. A significant drop from Low, but still far beyond what any display can show.
• High: Average 140 FPS. This is the first setting below 150 FPS, indicating the increasing load of higher-fidelity textures.
• Ultra: Average 132.4 FPS. The most demanding setting remains well above the 60 FPS threshold.

At 2560x1440:

• Low: Average 187 FPS. The frame rate drops by 8.9% compared to 1080p Low, showing the impact of increased pixel count.
• Medium: Average 142.8 FPS. A 21.5% reduction from 1080p Medium, reflecting the GPU's growing workload.
• High: Average 106.7 FPS. This is the first setting at 1440p that falls below 110 FPS.
• Ultra: Average 104.2 FPS. The gap between High and Ultra narrows to just 2.4%, suggesting the CPU may be providing diminishing returns at this resolution.

At 3840x2160:

• Low: Average 137 FPS. This is 26.7% lower than the 1080p Low score, demonstrating the massive jump in rendering demand at 4K.
• Medium: Average 108.4 FPS. A 20.9% drop from 1440p Medium, showing consistent scaling.
• High: Average 79.9 FPS. This is the first instance where the frame rate dips below 80 FPS.
• Ultra: Average 76.4 FPS. The most demanding preset at 4K still clears the 60 FPS threshold by a comfortable margin of 27%.

The Verdict

The data unequivocally confirms that the Intel Core i5-12600KF and NVIDIA GeForce RTX 4090 combination can run Microsoft Flight Simulator with exceptional proficiency. The verdict by resolution is clear: at every tested resolution—1920x1080, 2560x1440, and 3840x2160—the system achieves playable status at all four settings (Low, Medium, High, and Ultra). The best settings for each resolution are the Ultra presets, which yield 132.4 FPS, 104.2 FPS, and 76.4 FPS respectively.

This system does not merely meet the 60 FPS playability bar; it exceeds it by significant margins. At 1080p, the Ultra preset runs more than twice as fast as the threshold. At 1440p, it maintains a 73% buffer above 60 FPS. Even at the demanding 4K resolution, the Ultra preset holds a 27% advantage. This performance profile means that users can enable the highest visual settings without any concern for frame rate drops, and there is even headroom to utilize dynamic resolution scaling or supersampling techniques if desired. The only caveat is that the data shows average frame rates, so brief dips below these values may occur in dense urban environments, but the overall headroom makes such dips unlikely to be noticeable. This is a top-tier configuration for flight simulation enthusiasts.