Microsoft Flight Simulator

Microsoft Flight Simulator is a demanding title that stresses both the CPU and GPU heavily, and the combination of the Intel Core i5-12600KF and NVIDIA GeForce RTX 3080 shows a clear, balanced profile across resolutions. The measured FPS data shows a predictable progression: as resolution climbs, the frame rate drops, indicating a shift from CPU-bound at lower settings to GPU-bound at higher ones. At 1080p Low, the system reaches 158 FPS, but at 4K Ultra, it falls to 52 FPS, illustrating the scale of the challenge this title poses. This analysis breaks down the measured results, the role of each component, and the optimal settings for this pairing.

Resolution Scaling

The scaling from 1080p to 4K is steep and tells the story of a system that is well-balanced for high-refresh 1440p but is firmly a 60 FPS-class machine at 4K. At Low settings, the average FPS moves from 158 at 1920x1080, down to 127 at 2560x1440, and then to 94 at 3840x2160. That is a 64 FPS drop from 1080p to 4K, or roughly a 40% reduction in frame rate as pixel count quadruples. The pattern is consistent across all settings, but the absolute drops are largest at the low end of the quality spectrum, where the CPU can feed the GPU more easily.

At Medium settings, the progression is 123 FPS at 1080p, 99 FPS at 1440p, and 73 FPS at 4K. The delta between 1080p and 1440p is 24 FPS, and between 1440p and 4K is 26 FPS, showing a steady, predictable decline as resolution increases. At High settings, the numbers are 92, 74, and 55 FPS. The gap from 1440p to 4K is 19 FPS, while the gap from 1080p to 1440p is 18 FPS, a nearly linear drop. At Ultra, the pattern continues: 88 FPS at 1080p, 71 FPS at 1440p, and just 52 FPS at 4K. The 4K Ultra result of 52 FPS is the lowest measured, and it sits below the 60 FPS threshold, indicating that this combo is not ideal for maxed-out 4K in this title.

The data indicates that the limiting component shifts with resolution. At 1080p Low, the 158 FPS result suggests the CPU is the primary constraint, as the GPU has ample headroom. At 4K Ultra, the 52 FPS average shows that the GPU is fully saturated, and the CPU has far less influence on the final frame rate. The scaling from Low to Ultra at each resolution is also telling: at 1080p, there is a 70 FPS gap between Low and Ultra (158 to 88), while at 4K, the gap is only 42 FPS (94 to 52). This compression of the settings range at 4K is classic evidence of a GPU-bound scenario, where raising quality has a smaller absolute impact on FPS.

CPU Role

The Intel Core i5-12600KF is a 10-core, 16-thread processor from the Alder Lake architecture, built on a 10nm process. It has a base clock of 3.70 GHz and a boost clock of 4.90 GHz, and it supports both DDR4 and DDR5 memory. In the benchmark data, the CPU shows strong multi-threaded and single-threaded performance: Cinebench R23 multi-core score is 23391, single-core is 3302, and Geekbench multi-core is 12137, single-core 2157. The PassMark single-thread score is 3925, and the 3DMark single-thread score is 1016. This combination of high single-core and robust multi-core results is relevant to Flight Simulator, which is known to be sensitive to single-thread performance and requires reasonable CPU throughput for complex scenes.

In the measured FPS, the CPU's role is most apparent at low resolutions and low settings. At 1080p Low, the system reaches 158 FPS, and at 1440p Low, 127 FPS. These are the highest numbers in the dataset, and they are achieved because the GPU is not the binding constraint at these settings. The CPU, with its boost clock of 4.90 GHz, is able to issue draw calls quickly enough to feed the RTX 3080, allowing high frame rates. At 4K Low, the FPS drops to 94, which is still a solid result, but the drop from 1440p Low is 33 FPS, which is larger than the drop from 1080p to 1440p (31 FPS). This suggests that even at Low settings, the GPU begins to take a dominant role at 4K.

The CPU's performance percentile is 79 among all CPUs, and its average benchmark score is 27799. Its nearest rivals in the benchmark database include the Intel Core i9-10900K, which it trails by 0.3% in average score, and the AMD Ryzen 7 5800X3D, which it also trails by 0.3%. It edges out the AMD Ryzen 5 8500GE by 0.3%. These very small deltas indicate that the 12600KF is a mid-pack performer among the CPUs tested, but its 10 cores and 16 threads are more than enough for a flight sim, which is not particularly core-hungry. The single-thread performance is what matters more, and the Cinebench R23 single-core score of 3302 is a strong figure for this title.

GPU Role

The NVIDIA GeForce RTX 3080 is a high-end Ampere GPU with a GA102 chip, 10 GB of GDDR6X memory on a 320-bit bus, and 8704 shading units. Its base clock is 1440 MHz, boost clock is 1710 MHz, and memory runs at 19 Gbps effective, providing a bandwidth of 760.3 GB/s. The GPU has 68 RT cores and 272 tensor cores, and supports DirectX 12 Ultimate. Its benchmark scores include a Passmark G3D score of 25086 and a Geekbench Vulkan score of 33620. The GPU's percentile is 68 among all GPUs, and its average benchmark score is 23172.

In Flight Simulator, the RTX 3080's memory capacity and bandwidth are likely sufficient for 4K textures, but the GPU becomes the limiting factor at higher resolutions and presets. The measured FPS shows that at 4K Ultra, the system only achieves 52 FPS, and the 73 FPS at 4K Medium is the only 4K Medium result with a min-max range (62 to 84). The lack of min/max data for other rows means we can only rely on averages, but the 4K Ultra result is clearly below the 60 FPS target that many consider the baseline for smooth gameplay. The 4K High result of 55 FPS is also sub-60, while 4K Medium hits 73 FPS, which is more acceptable. The GPU's boost clock of 1710 MHz and the ample 760.3 GB/s bandwidth are not enough to keep the frame rate high when the preset is maxed at 4K.

The GPU's nearest rivals in the database are the NVIDIA P106-100, which is 0.3% slower, and the AMD Radeon Pro Vega 16, which is also 0.3% slower. The AMD Radeon RX 6600M is 0.4% slower, and the AMD Radeon R9 M290X is 0.4% slower. This indicates that the RTX 3080 is positioned in a specific performance tier, and the Flight Simulator results reflect that tier: capable at 1440p, but not a 4K Ultra card for this particular simulation. The GPU's 10 GB VRAM is a potential concern for future titles, but in this game, the data does not show any VRAM-related stuttering; the FPS drops are a function of raw raster performance.

Settings Recommendations

Based on the measured FPS rows, the best experience for this combo is a balance between visual quality and frame rate. At 1080p, all presets are playable, with Ultra delivering 88 FPS, High 92, and Medium 123. The difference between Ultra and Medium at 1080p is 35 FPS, which is significant. For the smoothest experience, Medium at 1080p is the best, but for a more cinematic experience, High at 92 FPS is still excellent. However, the data shows that the CPU is not a major bottleneck at 1080p, so raising the preset to High does not suffer a huge penalty.

At 1440p, the situation is more nuanced. Ultra hits 71 FPS, High hits 74 FPS, and Medium hits 99 FPS. The gap between High and Ultra is only 3 FPS, which is negligible, and both are above 60 FPS. Medium at 99 FPS is the best for competitive or smooth play, but for the visual fidelity, High is the sweet spot, as it offers 74 FPS with only a 3 FPS penalty for the higher preset. The 1440p Ultra result of 71 FPS is perfectly playable, but the incremental cost of Ultra over High is small.

At 4K, the choice is between 55 FPS at High, 73 FPS at Medium, and 52 FPS at Ultra. The 4K Ultra result is below 60 FPS, which may cause stutter or jitter for some users. The 4K High result of 55 FPS is also below 60, but it is closer. The 4K Medium result of 73 FPS is the only 4K preset that comfortably clears 60 FPS, making it the recommended setting for 4K on this system. The 4K Low result of 94 FPS is the highest 4K number, but the visual fidelity at Low is likely to be unappealing for a flight sim that relies on detailed scenery. Therefore, the data suggests that Medium is the best all-around preset for this combo: it delivers a steady 73 FPS at 4K, 99 FPS at 1440p, and 123 FPS at 1080p, all above the 60 FPS threshold.

How This Combo Ranks

The combination of the Intel Core i5-12600KF and the NVIDIA GeForce RTX 3080 ranks 1036 out of 3714 tested combos in Microsoft Flight Simulator. That places it in the top 28% of all systems tested. This is a solid showing, but not a top-tier result. The rank reflects the balance of the CPU and GPU: the CPU is in the 79th percentile, and the GPU is in the 68th percentile, but the game itself is demanding enough that the combo does not break into the top tier. The rank of 1036 means there are about 2678 combos that perform better, which is a reminder that this is a mid-high end setup, not an absolute top-end one.

In the context of the nearest rivals, the CPU is competitive with the Intel Core i9-10900K, which is only 0.3% faster, and the AMD Ryzen 7 5800X3D, which is 0.3% faster. But the GPU's rivals are not as relevant, as the RTX 3080's nearest rivals in the database are older or lower-tier parts. For this specific game, the combo's rank is a function of the balanced pairing: the CPU does not hold back the GPU at 1080p, but at 4K Ultra, the GPU's limitations cap the frame rate. The system is a high-end pairing that will deliver a good experience at 1440p and a playable one at 4K, but the rank indicates that there are many systems that can do better, likely with more powerful GPUs or newer CPUs.

Measured FPS Breakdown

The measured FPS data provides a complete picture. At 1920x1080, the settings and average FPS are: Low 158, Medium 123, High 92, and Ultra 88. The Medium setting also has recorded min and max values of 104 and 141, respectively, which indicates a stable frame delivery with a minor variance. The High and Ultra settings do not have min/max data, but the averages suggest that the Ultra preset is only 4 FPS below High, which is a small margin. At 1080p, the CPU is the primary driver, as the GPU has enough headroom to support high frame rates.

At 2560x1440, the settings and average FPS are: Low 127, Medium 99, High 74, and Ultra 71. The Medium setting has min and max values of 84 and 114, showing a wider variance compared to 1080p. The drop from High to Ultra is only 3 FPS, which is minimal. The Medium setting is the only one with min/max data, indicating that the other presets may have been tested with a more limited sample. At 1440p, the GPU is starting to take the lead, as the FPS drops are more pronounced when moving from Low to High.

At 3840x2160, the settings and average FPS are: Low 94, Medium 73, High 55, and Ultra 52. The Medium setting has min and max values of 62 and 84, which is a wide spread. The High and Ultra results are both below 60 FPS, which is the key takeaway. The drop from 1440p to 4K is significant: Low drops from 127 to 94, Medium from 99 to 73, High from 74 to 55, and Ultra from 71 to 52. The percentage drops are roughly 26%, 26%, 26%, and 27%, respectively, which is a consistent 25-27% reduction across the presets. This uniform drop suggests that the resolution scaling is consistent, and the GPU is the primary constraint at 4K.

The data also shows that the FPS difference between 1080p and 1440p is smaller than between 1440p and 4K for all presets. For example, at High, the gap from 1080p to 1440p is 18 FPS (92 to 74), while the gap from 1440p to 4K is 19 FPS (74 to 55). At Medium, the gaps are 24 FPS (123 to 99) and 26 FPS (99 to 73). At Low, the gaps are 31 FPS (158 to 127) and 33 FPS (127 to 94). This shows that the GPU is more stressed at 4K, and the CPU has less influence. The measured FPS values are the only data available, and they present a clear picture: this combo is best at 1440p, where it can exceed 60 FPS on all presets, and it is acceptable at 4K with Medium settings, but it is not a 4K Ultra machine.