Microsoft Flight Simulator

CPU Role — cores, clocks, and how they relate to this game's results

The Intel Core i5-14600K brings a 14-core, 20-thread configuration with a base clock of 3.50 GHz and a boost clock of 5.30 GHz. This is a Raptor Lake Refresh part on a 10 nm process, and its architecture provides a mix of performance and efficiency cores that handle both the simulation's heavy single-threaded flight model logic and the background threading for scenery streaming. The CPU's 24 MB of shared L3 cache and 2 MB per-core L2 cache are relevant for keeping frequently accessed terrain and aircraft data close to the cores, reducing latency in a simulator that streams data continuously.

Benchmark data places this CPU in the 93rd percentile among all CPUs, with an average benchmark score of 49166. Its nearest rival, the AMD Ryzen 9 5950X, scores 49062, which is a 0.2% delta — meaning the i5-14600K is essentially matched with a 16-core flagship from the previous generation. It also sits 0.4% behind the i5-14600KF (49367) and 0.9% behind the AMD EPYC 4345P (49595), while leading the Intel Xeon Gold 5318H by 1% (48698). In Microsoft Flight Simulator, the CPU's single-thread performance is critical because the core flight simulation loop is largely serial. The Geekbench single-core score of 2803 and Cinebench R23 single-core score of 4642 indicate strong per-core throughput, which translates to consistent frame pacing in CPU-bound scenarios like dense urban areas or complex weather systems.

The 125 W TDP and unlocked multiplier allow sustained boost behavior, though the simulator's performance scaling here is more dependent on the GPU at higher resolutions. At 1080p Low, the combo achieves 92.1 FPS, showing that the CPU can push well beyond 90 frames when the GPU is not the bottleneck. The data shows that even at 4K Ultra, the CPU continues to feed the GPU adequately — the 31.1 FPS result is a GPU limitation, not a CPU one, given the CPU's percentile standing and rival comparisons.

GPU Role — VRAM, clocks, and how they relate to this game's results

The AMD Radeon RX 6600 is an RDNA 2.0 part with 8 GB of GDDR6 memory on a 128-bit bus, delivering 224.0 GB/s of bandwidth. Its boost clock of 2491 MHz and game clock of 2044 MHz are modest by current standards, and the 1792 shading units, 112 TMUs, and 64 ROPs define its rasterization throughput. In a flight simulator that renders vast draw distances and dense terrain, the 8 GB VRAM capacity can become a limiting factor at higher resolutions and presets, as texture data for photogrammetry cities and detailed aircraft models accumulates quickly.

The GPU's benchmark percentile is 69th among all GPUs, with an average score of 25235. Its nearest rivals are remarkably close: the AMD Radeon 890M matches at 0% delta (25246), the RX 580 2048SP is 0.2% behind (25287), and the RX 6700M is 0.2% ahead (25180). The RTX 3060 Ti sits 0.5% ahead (25120) — a negligible margin that suggests these cards deliver nearly identical average compute results, though the RX 6600's 8 GB frame buffer may differentiate it in memory-intensive scenarios like Flight Simulator.

The measured FPS data shows the GPU is the primary bottleneck at higher resolutions. At 1080p Low, the card produces 92.1 FPS, but at 4K Ultra it drops to 31.1 FPS — a 66% reduction in frame rate. This scaling pattern indicates that the GPU's fill rate and memory bandwidth are strained as pixel count quadruples. The 132 W TDP and PCIe 4.0 x8 interface are adequate for this workload, but the data clearly shows that the RX 6600 is an entry-to-midrange part that will not sustain high refresh rates at 4K.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data reveals a clear resolution scaling pattern that identifies the GPU as the dominant bottleneck in this combo. Starting at 1080p Low, the system delivers 92.1 FPS. Moving to 1440p Low, the frame rate drops to 72.2 FPS — a 21.6% reduction for a 78% increase in pixel count. At 4K Low, the system produces 52.1 FPS, which is a 43.4% drop from 1080p Low. This non-linear scaling is characteristic of a GPU that is becoming saturated at higher pixel counts, but the CPU is still capable of keeping up at these lower settings.

At High settings, the scaling is even more pronounced. The 1080p result is 53.5 FPS, 1440p drops to 44.3 FPS (a 17.2% reduction), and 4K falls to 33.7 FPS (a 37% reduction from 1080p). The Ultra preset shows the steepest degradation: 1080p Ultra runs at 48.4 FPS, 1440p Ultra at 39.1 FPS, and 4K Ultra at 31.1 FPS. The delta between 1080p and 4K on Ultra is 35.7%, which is smaller than the Low preset's 43.4% drop — this suggests that at Ultra settings, both CPU and GPU are more evenly matched, but the GPU still governs the upper boundary.

The data indicates that at 1080p, the CPU has headroom to push higher frame rates if the GPU were more powerful. The jump from Low to Ultra at 1080p costs 43.7 FPS (from 92.1 to 48.4), which is a 47.4% performance penalty. At 4K, the same preset change costs 21 FPS (52.1 to 31.1), a 40.3% penalty. This shows that the GPU's limits are hit earlier at 4K, making it the clear limiting component for high-resolution play.

FAQ

Q: What is the best resolution to play this game with this combo?

A: The data shows that 1080p Medium delivers 70.2 FPS, which is smooth for a flight simulator. 1440p Medium runs at 57.4 FPS, which is acceptable, but 4K Medium drops to 44.2 FPS, which is below the 60 FPS threshold that many players prefer.

Q: How does this CPU compare to its nearest rival in raw compute?

A: The Intel Core i5-14600K scores 49166 on average benchmarks, which is 0.2% ahead of the AMD Ryzen 9 5950X (49062) and 1% ahead of the Intel Xeon Gold 5318H (48698). It trails the AMD EPYC 4345P by 0.9% (49595).

Q: Is the GPU's 8 GB VRAM sufficient for this game?

A: At 1080p and 1440p, the measured results show playable frame rates across all presets, indicating that 8 GB is sufficient at these resolutions. At 4K Ultra, the 31.1 FPS result suggests that VRAM capacity or bandwidth is limiting, though the overall GPU compute is also constrained.

Q: What is the difference between Low and Ultra settings at 1080p?

A: At 1080p, Low runs at 92.1 FPS while Ultra runs at 48.4 FPS — a 43.7 FPS difference. This 47.4% performance gap is significant and indicates that the Ultra preset demands substantially more GPU resources.

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

A: This particular CPU-GPU pairing ranks 1476th out of 1795 tested combos in Microsoft Flight Simulator, placing it in the lower half of the database. This ranking reflects the GPU's midrange positioning more than the CPU's strong percentile standing.

Q: Which component is the bottleneck in this system?

A: The resolution scaling data shows that the GPU is the primary bottleneck. At 1080p Low, the system hits 92.1 FPS, but at 4K Ultra it drops to 31.1 FPS — a 66% reduction that cannot be attributed to CPU limitations given the CPU's 93rd percentile ranking.

Measured FPS Breakdown

The measured FPS data provides a complete grid across three resolutions and four presets. At 1920x1080, the system delivers 92.1 FPS on Low, 70.2 FPS on Medium, 53.5 FPS on High, and 48.4 FPS on Ultra. This represents a smooth progression where each preset tier costs roughly 15-20 FPS, with the largest single drop occurring between Low and Medium (21.9 FPS).

At 2560x1440, the results are 72.2 FPS on Low, 57.4 FPS on Medium, 44.3 FPS on High, and 39.1 FPS on Ultra. The gap between Low and Medium narrows to 14.8 FPS, while the gap between High and Ultra narrows to 5.2 FPS, indicating that the GPU becomes more constrained at higher pixel counts.

At 3840x2160, the system produces 52.1 FPS on Low, 44.2 FPS on Medium, 33.7 FPS on High, and 31.1 FPS on Ultra. The difference between Low and Ultra is 21 FPS, which is smaller than the 43.7 FPS gap at 1080p. This compression of frame rates at 4K shows that the GPU is hitting its absolute limits, and no preset can rescue playable performance above 60 FPS.

The data shows that 1080p Low is the only configuration that exceeds 90 FPS, while 1080p Medium and Low at 1440p both exceed 70 FPS. All other configurations fall below 60 FPS, with 4K Ultra being the slowest at 31.1 FPS.

Settings Recommendations

Based on the measured rows, the optimal experience balances frame rate and visual fidelity. At 1080p, Medium settings deliver 70.2 FPS, which is a 23.7% improvement over High (53.5 FPS) while still maintaining a smooth simulation. The jump from Medium to High costs 16.7 FPS, which is a 23.8% reduction — this is a significant trade-off for marginal visual gains. Ultra at 1080p runs at 48.4 FPS, which is playable but below the 60 FPS threshold that many simmers prefer for smooth panning.

At 1440p, Medium is the recommended preset at 57.4 FPS. This is close to 60 FPS and provides a good balance for higher-resolution displays. High drops to 44.3 FPS, which is a 22.9% reduction, and Ultra falls to 39.1 FPS. The data suggests that 1440p Medium is the sweet spot for this combo, offering a 23.1 FPS improvement over 4K Medium (44.2 FPS) while still benefiting from the resolution upgrade over 1080p.

At 4K, none of the presets achieve 60 FPS. Low runs at 52.1 FPS, which is the only 4K configuration above 50 FPS. Medium drops to 44.2 FPS, and Ultra falls to 31.1 FPS. For 4K users, Low is the only viable option for semi-smooth gameplay, but the 52.1 FPS result is still below the ideal threshold. The data indicates that this combo is best suited for 1080p Medium or 1440p Medium, where the frame rates are within acceptable ranges for a flight simulator.

How This Combo Ranks

This Intel Core i5-14600K + AMD Radeon RX 6600 combination ranks 1476th out of 1795 tested combos in Microsoft Flight Simulator, placing it in the 18th percentile of all tested systems. This low ranking is primarily attributable to the GPU's midrange performance profile, as the CPU ranks in the 93rd percentile among all processors. The disparity between the CPU's strong standing (93rd percentile) and the combo's weak ranking (18th percentile) underscores that the RX 6600 is the limiting factor in this pairing.

The GPU's 69th percentile ranking among all GPUs, with an average score of 25235, places it in a tight cluster with the AMD Radeon 890M (0% delta), RX 580 2048SP (-0.2%), RX 6700M (0.2%), and RTX 3060 Ti (0.5%). This suggests that the RX 6600 performs within a narrow band of its immediate competitors, but that band is insufficient for high-end flight simulation at demanding settings.

The combo's rank of 1476 indicates that there are 1475 other tested combinations that perform better in this specific game, meaning the vast majority of systems in the database outperform this pairing. For context, the CPU's nearest rivals (Ryzen 9 5950X, i5-14600KF, EPYC 4345P, Xeon Gold 5318H) all have similar average scores, but the GPU's position in the lower midrange drags the overall combo ranking down. The data shows that pairing this CPU with a stronger GPU would yield significantly better results, as the CPU has demonstrated it can push frame rates well beyond what the RX 6600 delivers in this simulator.