Microsoft Flight Simulator

# How This Combo Ranks

The Intel Core i5-12600KF paired with the AMD Radeon RX 570 ranks 1737 out of 1795 tested combinations in Microsoft Flight Simulator. This places the combo in the bottom 3% of all tested systems, a position that reflects the GPU's age and limited VRAM rather than any shortcoming of the CPU. The data shows a configuration that is heavily constrained by its graphics component, with the RX 570's 4 GB frame buffer and Polaris architecture struggling to keep up with the simulation's demands at higher resolutions and settings.

The ranking is particularly telling when considering the CPU's standalone performance. The i5-12600KF sits at the 84th percentile among all CPUs, with an average benchmark score of 27827, putting it within 0.1% of the Intel Core i5-12600K and statistically tied with the Intel Core i9-10900K. Yet the combo rank suggests the system performs like a low-end machine in this game. This disconnect between CPU capability and overall combo performance underscores that Microsoft Flight Simulator is rendering-bound in this configuration, and the GPU becomes the decisive factor in determining playability.

# GPU Role

The AMD Radeon RX 570 is the clear bottleneck in this pairing. Its 4 GB of GDDR5 memory on a 256-bit bus provides 224.0 GB/s of bandwidth, but the capacity is the critical limitation for a game like Microsoft Flight Simulator, which streams vast amounts of terrain and scenery data. The GPU's base clock of 1168 MHz and boost clock of 1244 MHz are modest by modern standards, and the 5.095 TFLOPS of FP32 performance is simply insufficient for the simulation's visual complexity at higher presets.

The GPU's benchmark data reinforces this assessment. Its average benchmark score of 30158 places it at the 74th percentile among all GPUs, with nearest rivals including the RTX 5060 (0.2% ahead) and RX 7700 XT (0.2% ahead). While those rivals are technically close in the aggregate benchmark, the RX 570's age and memory limitations become glaring in real-world gaming scenarios. The 4 GB VRAM is particularly problematic at 4K, where the High preset yields only 15.6 FPS, suggesting the frame buffer is being overwhelmed. The GPU's DirectX 12 (12_0) support is present, but the GCN 4.0 architecture from 2017 lacks the modern feature set that newer titles increasingly rely upon.

# Settings Recommendations

The measured data points to a clear strategy for this combo: prioritize Low settings to achieve acceptable frame rates, and target 1080p as the primary resolution. At 1920x1080 with Low settings, the system produces 47.8 FPS, which is the only configuration that approaches smooth gameplay. The Medium preset at 1080p yields 35.6 FPS, a playable but noticeably less fluid experience. High and Ultra at 1080p produce 26.2 and 26.5 FPS respectively, which are nearly identical and indicate that the GPU is maxed out well before the CPU becomes a factor.

At 1440p, the situation worsens. Low settings deliver 40.6 FPS, which is still respectable, but Medium drops to 33 FPS and High falls to 20.8 FPS. The Ultra preset at 1440p produces 23.4 FPS, which is barely better than the 4K High result of 15.6 FPS. The data suggests that users should stay at 1080p and Low settings for the best balance of visual fidelity and frame rate. Pushing to Medium at 1080p sacrifices nearly 12 FPS for marginal visual gains, making Low the clear recommendation for sustained playability.

# Measured FPS Breakdown

The measured performance across resolutions and settings reveals a consistent pattern of GPU-bound behavior. At 1920x1080, the progression is: Low at 47.8 FPS, Medium at 35.6 FPS, High at 26.2 FPS, and Ultra at 26.5 FPS. The near-identical results between High and Ultra at 1080p suggest that the GPU's memory bandwidth is saturated, and additional settings have diminishing returns. The 12.2 FPS drop from Low to Medium is the largest single-step decrease, indicating that Medium introduces significant rendering overhead.

At 2560x1440, Low yields 40.6 FPS, Medium drops to 33 FPS, and High falls to 20.8 FPS. Ultra at 1440p produces 23.4 FPS, which is actually higher than High—a counterintuitive result that may reflect variability in the simulation's scene complexity rather than a true performance inversion. The 1440p results show a 19.8 FPS gap between Low and High, demonstrating how quickly the RX 570 degrades as pixel count increases.

At 3840x2160, the results are uniformly poor: Low at 25.9 FPS, Medium at 23.1 FPS, High at 15.6 FPS, and Ultra at 17.7 FPS. The 4K resolution overwhelms the 4 GB frame buffer, and even Low settings cannot maintain playable frame rates. The difference between 4K Low and 1080p Low is 21.9 FPS, a massive penalty that underscores the GPU's inability to handle 4K rendering in this title.

# Resolution Scaling

The frame rate scaling from 1080p to 4K provides clear evidence of GPU limitation. At Low settings, performance drops from 47.8 FPS at 1920x1080 to 40.6 FPS at 2560x1440 (a 15% reduction) and then to 25.9 FPS at 3840x2160 (a 46% reduction from 1080p). This scaling pattern is characteristic of a GPU that is bandwidth-and-fill-rate limited rather than CPU-bound. If the CPU were the bottleneck, the frame rate would remain relatively constant across resolutions, as the simulation's physics and game logic would be the constraint.

At High settings, the drop is even steeper: 26.2 FPS at 1080p falls to 20.8 FPS at 1440p (a 21% reduction) and then to 15.6 FPS at 4K (a 40% reduction from 1080p). The fact that the frame rate continues to decline with resolution at every settings level confirms that the RX 570 is the limiting component. The CPU's 10 cores and 16 threads are more than adequate for this workload, as evidenced by the i5-12600KF's 3dmark scores: 7956 for 16 threads, 6128 for 8 threads, and 1016 for single-thread. These results indicate a processor that can handle the simulation's multithreaded rendering pipeline without becoming a bottleneck.

# CPU Role

The Intel Core i5-12600KF is a 10-core, 16-thread Alder Lake-S processor with a base clock of 3.70 GHz and a boost clock of 4.90 GHz. Its 20 MB of shared L3 cache and dual-channel DDR4/DDR5 memory support provide ample bandwidth for game logic and asset streaming. The CPU's benchmark performance is strong: Cinebench R23 multicore score of 23444, Geekbench multicore of 12373, and Passmark multithread of 27575. These scores place it in the 84th percentile of all CPUs, with nearest rivals including the Intel Core i9-10900K (0% delta) and Intel Core i5-12600K (-0.1% delta).

In Microsoft Flight Simulator, the CPU's role is to handle the flight model physics, weather simulation, and the game's complex world-streaming system. The 16 threads are well-suited for this task, as the simulation can distribute workloads across multiple cores. However, the measured FPS data shows that the CPU is not the constraint in this pairing. At 1080p Low, the system achieves 47.8 FPS, which is far below what the CPU alone could deliver. The 3dmark single-thread score of 1016 and Passmark single-thread score of 3925 indicate strong per-core performance that would not hold back a more capable GPU. The data suggests that users could upgrade the GPU without needing to replace the CPU, as the i5-12600KF has sufficient headroom for higher frame rates in this title.

# FAQ

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

A: Low settings at 1920x1080 produce 47.8 FPS, which is the highest measured frame rate. Medium at 1080p drops to 35.6 FPS, making Low the recommended preset for playable performance.

Q: Can this combo handle 4K resolution?

A: No. At 3840x2160, even Low settings only achieve 25.9 FPS, and High settings fall to 15.6 FPS. The 4 GB VRAM of the RX 570 is insufficient for 4K rendering in this simulation.

Q: Is the CPU or GPU the bottleneck in this system?

A: The GPU is the clear bottleneck. The CPU ranks at the 84th percentile among all CPUs, while the combo ranks 1737 out of 1795. The frame rate drops significantly with resolution, indicating GPU limitation.

Q: How does the i5-12600KF compare to its closest rivals?

A: The i5-12600KF has an average benchmark score of 27827, which is statistically tied with the Intel Core i9-10900K (0% delta) and within 0.1% of the Intel Core i5-12600K. It also slightly outperforms the Intel Core i7-13700H by 0.4%.

Q: What is the frame rate difference between 1080p and 4K at Low settings?

A: The system delivers 47.8 FPS at 1920x1080 and 25.9 FPS at 3840x2160, a reduction of 21.9 FPS (approximately 46%) when moving to 4K.

Q: Does the RX 570's 4 GB VRAM cause issues in this game?

A: Yes. The 4 GB frame buffer is a major limitation, as evidenced by the steep performance drops at higher resolutions. At Ultra settings, 4K yields only 17.7 FPS, and the GPU's 224.0 GB/s bandwidth cannot keep up with the simulation's streaming data demands.