Microsoft Flight Simulator

# How This Combo Ranks

The combination of the Intel Core i5-14600K and AMD Radeon RX 7900 XTX places at rank 217 out of 1,795 tested combos in Microsoft Flight Simulator. This puts the pairing comfortably in the top 12% of all tested configurations, indicating a strong overall performance tier for this demanding flight simulation title. The rank reflects the synergy between a high-end GPU and a capable recent-generation CPU, though it is not at the absolute apex of the leaderboard, leaving headroom for more expensive processors to gain higher positions in this specific workload.

The data shows that this combo outperforms the vast majority of alternatives, but the 1,795-combo field includes many pairings with flagship-class hardware on both sides. The 217th position suggests that while the GPU is a top-tier part, the i5-14600K, despite its strong showing, may be the limiting factor in pushing the combo higher. This is a typical pattern in simulation games that rely heavily on single-thread performance, where the CPU's architecture and clock speed can disproportionately affect final rankings compared to raw GPU throughput.

GPU Role

The AMD Radeon RX 7900 XTX is the dominant component in this pairing, bringing 24 GB of GDDR6 memory across a 384-bit bus, yielding 960.0 GB/s of bandwidth. This memory configuration is critical for Microsoft Flight Simulator, which streams vast textures and terrain data. The 24 GB capacity ensures that even at the highest settings and resolutions, the GPU does not run into frame-stalling due to memory pressure, a common issue with lesser cards.

Clock speeds for this GPU are notably high, with a base of 1929 MHz, a game clock of 2365 MHz, and a boost clock of 2498 MHz. The boost clock represents the maximum attainable frequency under load, and the data indicates that the card sustains high performance across all tested scenarios. The GPU also features 96 ray tracing cores and 192 ROPs, which contribute to its ability to handle the complex lighting and shadow calculations in the simulator's photogrammetry-heavy environments. With a pixel rate of 479.6 GPixel/s and a texture rate of 959.2 GTexel/s, the card has ample throughput for 4K rendering, as evidenced by the measured FPS figures.

The GPU's 85th percentile ranking among all GPUs, based on average benchmark scores, confirms its position as a high-end part. However, its nearest rivals include the NVIDIA GeForce RTX 4070 Ti (with a deltaPct of -2%) and the NVIDIA GeForce RTX 4090 Mobile (with a deltaPct of 0.8%), showing that the 7900 XTX sits in a competitive band where small score differences translate to meaningful performance gaps in specific titles. In this game, the GPU's role is to deliver the raw frame rates, and the data shows it does so effectively, but the CPU must keep up with the simulation's physics and AI calculations.

Resolution Scaling

The measured FPS data reveals a clear pattern of scaling from 1080p to 4K, with the most significant drop occurring at the highest resolution. At 1920x1080 with Ultra settings, the combo achieves 106.8 FPS, which drops to 85.9 FPS at 2560x1440, and further to 60.3 FPS at 3840x2160. This represents a 43.5% reduction from 1080p to 4K at Ultra settings, indicating that the GPU is becoming the primary bottleneck as pixel count increases.

Conversely, at Low settings, the scaling is more dramatic: 192.1 FPS at 1080p, 152.3 FPS at 1440p, and 112.8 FPS at 4K. The percentage drop from 1080p to 4K at Low settings is 41.3%, slightly less than at Ultra, suggesting that at lower settings, the CPU has more influence on the overall frame rate. This is consistent with the behavior of simulation games, where CPU-bound scenarios are more prevalent at lower resolutions and graphics settings.

The data indicates that the limiting component shifts with resolution. At 1080p, the high frame rates (192.1 FPS at Low) suggest that the CPU is near its limit, as the GPU has ample headroom. As resolution increases to 4K, the GPU's workload grows, and the frame rates drop to levels where the GPU's rendering capabilities are the primary constraint. The 112.8 FPS at 4K Low versus 60.3 FPS at 4K Ultra highlights this transition, with the graphics settings having a more pronounced effect at higher resolutions.

Measured FPS Breakdown

At 1920x1080, the combo delivers a wide range of performance depending on settings. With Low settings, the average FPS is 192.1, which is exceptionally high and indicates the CPU can push frame rates well beyond 144 Hz monitors. Medium settings yield 147.3 FPS, High settings produce 110.9 FPS, and Ultra settings bring the average down to 106.8 FPS. The difference between High and Ultra is modest at only 4.1 FPS, suggesting diminishing returns from the highest preset.

Moving to 2560x1440, the frame rates remain strong. Low settings achieve 152.3 FPS, Medium settings deliver 121.3 FPS, High settings produce 90.4 FPS, and Ultra settings drop to 85.9 FPS. The gap between High and Ultra narrows further to 4.5 FPS, while the drop from Low to Ultra is 66.4 FPS, indicating a significant impact of graphics quality on performance at this resolution.

At 3840x2160, the performance is still respectable but shows the GPU working harder. Low settings average 112.8 FPS, Medium settings achieve 86.5 FPS, High settings produce 67.3 FPS, and Ultra settings bring the average down to 60.3 FPS. The difference between Low and Ultra at 4K is 52.5 FPS, which is a larger absolute gap than at 1080p but a smaller percentage difference, reinforcing that the GPU is more heavily utilized at 4K. The 60.3 FPS at 4K Ultra is just above the 60 FPS threshold, indicating playable performance but with no margin for frame drops.

The data shows a consistent pattern: Low settings are always more than double the frame rate of Ultra settings at any given resolution, and the absolute FPS values scale proportionally with resolution. The 192.1 FPS at 1080p Low is the highest measured value, while the 60.3 FPS at 4K Ultra is the lowest, representing a 68.6% reduction in performance across the entire test matrix.

CPU Role

The Intel Core i5-14600K features 14 cores and 20 threads, with a base clock of 3.50 GHz and a boost clock of 5.30 GHz. This high boost clock is particularly relevant for Microsoft Flight Simulator, which is known for its reliance on single-thread performance for simulation logic. The CPU's architecture, Raptor Lake-R, is built on a 10 nm process, and its 24 MB of shared L3 cache helps reduce latency when accessing frequently used data.

In terms of benchmark scores, the i5-14600K achieves a Cinebench R23 multicore score of 32,881 and a single-core score of 4,642. These scores are competitive with its nearest rivals, including the AMD Ryzen 9 5950X (with a deltaPct of 0.2%) and the Intel Core i5-14600KF (with a deltaPct of -0.4%). The data indicates that the i5-14600K performs within 1% of these alternatives, making it a balanced choice for this game.

The CPU's role in this combo is to feed the GPU with enough data to maintain high frame rates. At 1080p Low, the 192.1 FPS result suggests the CPU is capable of handling the simulation's physics and AI without bottlenecking the GPU. However, at 4K Ultra, the frame rate drops to 60.3 FPS, which is more indicative of GPU limitations, but the CPU still needs to maintain consistent frame pacing. The 93rd percentile ranking among all CPUs, based on average benchmark scores, confirms that the i5-14600K is a high-performing part, but it is not the absolute fastest available, which explains why the combo ranks 217th rather than higher.

The PassMark single-thread score of 4,270 and the Geekbench single-core score of 2,803 further quantify the CPU's single-thread capabilities. These scores are directly relevant to the game's performance, as Microsoft Flight Simulator often has a single-thread bottleneck for the main simulation loop. The 5.30 GHz boost clock ensures that the CPU can reach high frequencies when needed, but the data shows that the combo's overall ranking is constrained by the CPU's position relative to faster processors in the field.