Microsoft Flight Simulator

The Intel Core i5-12600KF paired with the NVIDIA GeForce RTX 5090 D achieves a rank of 28 out of 2,996 tested combos in Microsoft Flight Simulator. This places the combination in the top 1% of all systems tested, a position driven primarily by the GPU's immense raw power rather than any exceptional CPU contribution. The data indicates this is a high-end pairing that delivers playable frame rates at every resolution and settings level tested, though the performance scaling reveals a system that becomes increasingly CPU-limited as resolution drops.

How This Combo Ranks

The combo's rank of 28 out of 2,996 tested combinations places it in the 99th percentile of all systems benchmarked in this flight simulator. This is an exceptional result, but the ranking is heavily influenced by the RTX 5090 D's standing in the broader GPU hierarchy. The GPU holds a percentile rank of 92 against all other graphics cards, while the CPU sits at a more modest 79th percentile against all processors. The disparity between these percentile positions is the key story: the GPU is pulling the combo upward, while the CPU is the limiting factor preventing a higher overall placement.

Looking at the CPU's nearest rivals in average benchmark score, the i5-12600KF is essentially tied with several other processors. The Intel Core i9-10900K scores 27,872, a delta of -0.3% compared to the i5's 27,799 average. The AMD Ryzen 7 5800X3D scores 27,896, also a -0.3% delta. The AMD Ryzen 5 8500GE is a 0.3% delta in the opposite direction at 27,712. These results show that the i5-12600KF is positioned in a dense cluster of CPUs with nearly identical average performance, meaning any of these processors would yield similar frame rates in CPU-bound scenarios. The GPU's nearest rivals, meanwhile, show a wider spread. The AMD Radeon RX 6850M XT scores 78,940 (a -1.6% delta), while the NVIDIA Tesla P100 PCIe 16 GB scores 79,605 (a -2.4% delta). This indicates that the RTX 5090 D has more distinct performance separation from its closest competitors than the CPU does from its own rivals.

The benchmark data confirms that this combo's rank is not a fluke. The measured frame rates are consistently high across all tested configurations, which aligns with the top-tier ranking. However, the data also shows that the CPU is never the star of the show. The i5-12600KF's 10 cores and 16 threads provide sufficient processing power for the flight simulator, but the GPU is doing the heavy lifting in terms of producing the final image.

GPU Role

The NVIDIA GeForce RTX 5090 D is the dominant component in this pairing. Its 32 GB of GDDR7 memory on a 512-bit bus provides a memory bandwidth of 1.79 TB/s, which is substantial for a flight simulator that loads large, detailed scenery. The memory clock runs at 1,750 MHz (28 Gbps effective), and the GPU's base clock is 2,017 MHz with a boost clock of 2,407 MHz. These clocks, combined with the 21,760 shading units and 170 RT cores, give the GPU the raw compute capability to handle the simulator's heavy draw calls and rendering workloads.

The GPU's benchmark scores reinforce its top-tier status. It achieves a Passmark G3D score of 44,065 and a Geekbench Vulkan score of 376,915. The 3DMark Steel Nomad DX12 score of 14,326 further demonstrates its DirectX 12 performance. These scores place the GPU at the 92nd percentile of all graphics cards, and its average benchmark score of 77,712 is about 1.6% ahead of the AMD Radeon RX 6850M XT, its nearest rival in the data. This performance advantage translates directly to the frame rates seen in Microsoft Flight Simulator.

The GPU's role in this game is critical because flight simulators are heavily GPU-bound at higher resolutions. The data shows that at 4K Ultra settings, the combo delivers 84 FPS average. This is a playable frame rate for a simulation title, and it demonstrates that the RTX 5090 D has enough headroom to handle the game's most demanding configuration. The GPU's 32 GB of VRAM is likely a factor here, as the simulator can load large textures and terrain data without hitting memory limits. The fact that the GPU is the clear bottleneck at 4K is evidenced by the CPU's more modest performance profile relative to the GPU's.

Resolution Scaling

The frame rate scaling across resolutions reveals a classic pattern of diminishing returns as resolution increases, with the GPU becoming the primary bottleneck at higher pixel counts. At 1080p Low settings, the combo produces 207 FPS average. Moving to 1440p Low drops this to 193 FPS, and at 4K Low it falls to 151 FPS. This scaling shows that even at Low settings, the GPU is still doing significant work, but the CPU is able to keep up with the demands of the lower resolutions.

At Medium settings, the pattern is similar but with more pronounced drops. The 1080p Medium result is 189 FPS, which drops to 159 FPS at 1440p and 118 FPS at 4K. The drop from 1080p to 1440p is 30 FPS, while the drop from 1440p to 4K is 41 FPS. This indicates that the GPU is becoming increasingly stressed as resolution increases, and the CPU is less of a factor. The High settings show a steeper curve: 149 FPS at 1080p, 120 FPS at 1440p, and 88 FPS at 4K. The percentage drop from 1080p to 4K at High settings is roughly 41%, which is substantial.

Ultra settings show the most dramatic scaling. The 1080p Ultra result is 142 FPS, which drops to 114 FPS at 1440p and 84 FPS at 4K. The drop from 1080p to 4K at Ultra is 58 FPS, or about 41%. This consistent 40-45% drop across all settings from 1080p to 4K strongly indicates that the GPU is the limiting component at 4K, while the CPU is the limiting factor at 1080p. The fact that the 1080p Ultra result (142 FPS) is lower than the 1440p High result (120 FPS) suggests that the settings level has a larger impact than resolution alone, but the resolution scaling clearly shows the GPU's workload increasing.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates. Low settings produce an average of 207 FPS, Medium produces 189 FPS with a minimum of 161 and maximum of 217, High produces 149 FPS, and Ultra produces 142 FPS. The range between Low and Ultra at 1080p is 65 FPS, showing that the settings level has a significant impact on performance. The Medium settings show a 56 FPS spread between minimum and maximum, which indicates some frame time variance, but the average remains high.

At 2560x1440, the frame rates remain strong but show the expected decline. Low settings average 193 FPS, Medium averages 159 FPS with a range of 136 to 183, High averages 120 FPS, and Ultra averages 114 FPS. The drop from 1080p to 1440p is largest at Low settings (14 FPS) and smallest at Ultra settings (28 FPS). The Ultra settings at 1440p are still above 100 FPS, which is excellent for a flight simulator.

At 3840x2160, the combo still delivers playable frame rates across all settings. Low settings average 151 FPS, Medium averages 118 FPS with a range of 100 to 135, High averages 88 FPS, and Ultra averages 84 FPS. The 4K Ultra result of 84 FPS is the lowest average in the entire dataset, but it is still above the 60 FPS threshold that many players consider playable. The Medium settings at 4K show a 35 FPS spread, which is the largest variance in the dataset, indicating that the GPU is working hard and frame times are less consistent.

The data shows a clear hierarchy: 1080p Low is the fastest configuration at 207 FPS, and 4K Ultra is the slowest at 84 FPS. The gap between these two extremes is 123 FPS. The settings level has a larger impact on frame rate than resolution in most cases. For example, dropping from Ultra to Low at 1080p yields a 65 FPS increase, while dropping from 1080p to 4K at Ultra yields a 58 FPS decrease. This suggests that for players prioritizing frame rate, lowering settings is more effective than lowering resolution.

FAQ

Q: What is the highest average frame rate achieved by this combo in Microsoft Flight Simulator?

A: The highest average frame rate is 207 FPS, achieved at 1920x1080 resolution with Low settings.

Q: Is the combo capable of running the game at 4K Ultra settings at a playable frame rate?

A: Yes, the combo delivers an average of 84 FPS at 3840x2160 with Ultra settings, which is above the 60 FPS threshold commonly considered playable.

Q: How does the CPU's performance compare to its nearest rivals?

A: The Intel Core i5-12600KF has an average benchmark score of 27,799, which is within 0.3% of the AMD Ryzen 7 5800X3D (27,896) and the Intel Core i9-10900K (27,872).

Q: What is the GPU's memory configuration and bandwidth?

A: The GPU has 32 GB of GDDR7 memory on a 512-bit bus, providing a bandwidth of 1.79 TB/s with a memory clock of 1,750 MHz (28 Gbps effective).

Q: How much does performance drop from 1080p to 4K at High settings?

A: At High settings, the frame rate drops from 149 FPS at 1080p to 88 FPS at 4K, a decrease of 61 FPS or approximately 41%.

Q: Does the combo show signs of CPU limiting at any resolution?

A: Yes, the 1080p results show signs of CPU limiting, as the frame rates at Low (207 FPS) and Medium (189 FPS) are very high, and the CPU's 79th percentile ranking suggests it cannot keep up with the GPU's potential at lower resolutions.

CPU Role

The Intel Core i5-12600KF is a 10-core, 16-thread processor based on the Alder Lake architecture. Its base clock is 3.70 GHz with a boost clock of 4.90 GHz, and it has a 20 MB shared L3 cache. The CPU supports DDR4 and DDR5 memory in dual-channel configuration, and it uses the Intel Socket 1700. Its benchmark scores show a balanced profile: a Cinebench R23 multicore score of 23,391 and a single-core score of 3,302, along with a Geekbench multicore score of 12,137 and single-core score of 2,157.

In Microsoft Flight Simulator, the CPU's role is to handle the simulation logic, AI traffic, and physics calculations, while the GPU renders the scene. The data suggests that the CPU is sufficient for this task but not exceptional. At 1080p Low settings, the combo produces 207 FPS, which is likely near the CPU's limit for this game. The fact that the 1080p Ultra result (142 FPS) is higher than the 4K High result (88 FPS) indicates that the CPU can still push frame rates when the GPU is not the bottleneck, but the CPU's 79th percentile ranking versus the GPU's 92nd percentile shows that the CPU is the weaker link.

The CPU's nearest rivals in average benchmark score are all within 0.3% of its performance, meaning that swapping in an AMD Ryzen 7 5800X3D or Intel Core i9-10900K would likely produce nearly identical frame rates in this game. The CPU's 10 cores and 16 threads are adequate for the flight simulator's workload, but the game does not appear to be heavily multi-threaded based on the frame rate scaling. The single-core performance, as shown by the Cinebench R23 single-core score of 3,302, is likely more important for this title, and the i5-12600KF's boost clock of 4.90 GHz helps in that regard.

The CPU's memory support for DDR4 and DDR5 is a notable feature, but the data does not specify which memory type was used in testing. The CPU's TDP of 125 W and its unlocked multiplier suggest it is designed for enthusiasts, but the benchmark results show that it does not stand out from its rivals in this game. The combo's overall rank of 28 out of 2,996 is impressive, but it is primarily a GPU achievement. The RTX 5090 D's 32 GB of VRAM and 1.79 TB/s bandwidth are the main drivers of the high frame rates at 4K, while the CPU provides just enough performance to avoid being a severe bottleneck at lower resolutions.