Microsoft Flight Simulator

The pairing of the Intel Core i3-12100F with the NVIDIA GeForce RTX 4090 is a study in extremes, pitting a quad-core processor against a flagship graphics card. In Microsoft Flight Simulator, the data reveals a system that is capable of very high frame rates, but whose performance ceiling is heavily influenced by the CPU’s thread count. The measured results show that while the GPU can push massive frame rates at lower resolutions, the processor becomes the bottleneck as the workload scales. This analysis breaks down the measured FPS data to show exactly where the limits lie and what settings make the most sense for this specific combination.

Resolution Scaling

The measured FPS data shows a clear pattern of diminishing returns as resolution increases, but with an interesting twist that highlights the CPU's role. At 1080p with Low settings, the system achieves an average of 182.6 FPS. Moving to 1440p Low, the average drops to 168.8 FPS, a decline of roughly 7.5%. At 4K Low, the average falls further to 133.6 FPS, which is a 20.8% drop from the 1440p result. This scaling suggests that at lower resolutions, the CPU is the primary limiter; the RTX 4090 is far from being taxed, but the i3-12100F cannot feed it data fast enough to reach even higher frame rates.

The trend becomes more telling when looking at the High preset. At 1080p High, the average is 137.6 FPS. At 1440p High, it drops to 108.6 FPS, a 21% reduction. At 4K High, the average is 80.3 FPS, another 26% reduction from 1440p. This steeper decline at higher settings indicates that the GPU is starting to become more involved, but the CPU is still limiting the maximum frame rate at 1080p. The fact that the 1080p High result (137.6 FPS) is significantly lower than the 1080p Low result (182.6 FPS) shows the increased graphical load is now interacting with the CPU's limitations in a more complex way.

The Ultra preset shows the most consistent scaling between resolutions. The 1080p Ultra average is 130 FPS, which drops to 101.6 FPS at 1440p (a 21.8% drop) and then to 77.3 FPS at 4K (a 23.9% drop from 1440p). This consistency suggests that at Ultra settings, the load is more balanced between the CPU and GPU. The overall data indicates that the i3-12100F is the limiting component at 1080p and 1440p, as the frame rate differences between Low and Ultra at those resolutions are relatively small compared to the difference seen at 4K.

GPU Role

The RTX 4090 is a behemoth, and its specifications reflect that. It features 24 GB of GDDR6X memory on a 384-bit bus, providing 1.01 TB/s of bandwidth. The GPU has a boost clock of 2520 MHz and is built on the Ada Lovelace architecture with 16,384 shading units. In this game, the GPU's massive memory pool and bandwidth are more than sufficient for the highest resolutions and settings. The data shows that at 4K Ultra, the system still manages an average of 77.3 FPS, which is a playable frame rate for a flight simulator.

However, the GPU’s raw power is often left untapped due to the CPU. The benchmark data shows that at 1080p Low, the system hits 182.6 FPS, but the RTX 4090 is capable of far more in other scenarios. The score of 38,194 in Passmark G3D and its 91st percentile ranking show that this is one of the fastest GPUs available. The fact that it cannot push past the 182.6 FPS mark at 1080p Low is a direct indication that the processor is the bottleneck. The GPU is waiting on the CPU to deliver draw calls and simulation data, which is a common scenario in CPU-intensive simulation titles.

The 24 GB of VRAM is a significant asset for Microsoft Flight Simulator, which is known for loading large amounts of terrain and texture data. The data does not indicate any memory-related performance drops, which suggests that the VRAM capacity is not a limiting factor in any of the measured configurations. The GPU's role in this pairing is to provide a massive headroom for graphical fidelity, but its full potential is gated by the i3-12100F's ability to keep up with the game's simulation logic.

FAQ

Q: Is the Intel Core i3-12100F a bottleneck for the RTX 4090 in this game?

A: Yes, the data strongly suggests this. At 1080p Low, the system averages 182.6 FPS, which is high, but the difference between Low and Ultra at 1080p is only 52.6 FPS (from 182.6 to 130). This relatively small gap for a massive graphical load increase indicates the CPU is limiting the maximum frame rate, not the GPU.

Q: Can this system run the game at 4K Ultra settings?

A: Yes, it can. The measured average FPS for 4K Ultra is 77.3 FPS. This is a playable frame rate for a flight simulator, where smoothness is less critical than in a fast-paced shooter. The 24 GB of VRAM on the RTX 4090 ensures that the high-resolution textures are handled without issue.

Q: What is the best resolution for this combination?

A: The data shows that 1440p offers a strong balance. At 1440p High, the system achieves 108.6 FPS, and at 1440p Ultra, it achieves 101.6 FPS. These frame rates are high and provide a significant visual improvement over 1080p without the performance drop seen at 4K.

Q: How does the i3-12100F compare to other CPUs in its benchmark range?

A: The i3-12100F has an average benchmark score of 13,516 and sits in the 72nd percentile. Its nearest rival is the AMD Ryzen Threadripper PRO 3975WX, which has a score of 13,534 and a deltaPct of -0.1%, meaning they are essentially tied. It also slightly edges out the Intel Core i7-1250U by 0.4%.

Q: What is the impact of the CPU's core count on performance?

A: The i3-12100F has 4 cores and 8 threads. The 3DMark benchmark scores show a jump from 1,659 for 2 threads to 4,051 for 16 threads, indicating scaling with thread count. However, with only 4 physical cores, it is likely struggling to handle the game's background simulation tasks and the main rendering thread concurrently, which is a likely cause of the bottleneck.

Q: Is the RTX 4090's performance in this game representative of its overall standing?

A: The RTX 4090 is a top-tier GPU, ranking in the 91st percentile of all GPUs. Its average benchmark score is 66,473. However, in this specific game, its performance is capped by the CPU. This is evident when comparing the 1080p Low and 4K Ultra results, where the frame rate drops by 49 FPS, but the GPU is still not the limiting factor at 1080p.

Measured FPS Breakdown

The measured data provides a clear picture of the system's performance across three resolutions and four quality presets.

At 1920x1080, the system is clearly CPU-bound. The Low preset yields an average of 182.6 FPS, while the Medium preset drops to 168.4 FPS. High settings see a further reduction to 137.6 FPS, and Ultra brings up the rear at 130 FPS. The difference between Low and Ultra is 52.6 FPS, which is significant, but the absolute numbers are still very high, showing that the RTX 4090 is capable of handling the graphics load with ease at this resolution.

Moving to 2560x1440, the frame rates remain high. The Low preset averages 168.8 FPS, which is only a 13.8 FPS drop from 1080p Low. Medium settings average 144.9 FPS, and High drops to 108.6 FPS. The Ultra preset averages 101.6 FPS. The scaling here shows that the GPU is beginning to take on more work, but the CPU is still a limiting factor, as the 1440p Ultra score is closer to the 1080p Ultra score than it is to the 4K Ultra score.

At 3840x2160, the GPU starts to show its strength. The Low preset still manages an impressive 133.6 FPS, but the Medium preset drops to 106.4 FPS. High settings see a significant drop to 80.3 FPS, and Ultra bottoms out at 77.3 FPS. The performance gap between 1440p and 4K for the High and Ultra presets is notable, indicating that the GPU is now the primary bottleneck at this resolution. The data shows a clear hierarchy: 1080p and 1440p are CPU-limited, while 4K is more GPU-limited.

CPU Role

The Intel Core i3-12100F is a 4-core, 8-thread processor based on the Alder Lake architecture. It has a base clock of 3.30 GHz and a boost clock of 4.30 GHz. Its benchmark scores are respectable for a quad-core, with a Cinebench R23 multi-core score of 11,912 and a single-core score of 1,681. This single-core performance is strong, which is crucial for gaming, but the low core count is a liability in simulation games like Microsoft Flight Simulator.

The data shows that the CPU is the primary bottleneck at 1080p and 1440p. For example, the 1080p Low average of 182.6 FPS seems high, but the 1080p Ultra average of 130 FPS represents only a 28.8% drop in performance, despite a massive increase in graphical fidelity. This suggests that the CPU is running near its maximum limit even at Low settings, and the GPU is simply waiting for more instructions. The Passmark multi-thread score of 14,015 and the 3DMark 16-thread score of 4,051 indicate that the processor's performance scales with threads, but it is limited by having only 4 physical cores.

The CPU's 12 MB of L3 cache is shared, which is a moderate amount, but the 4-core design means that the game's main thread and the various background simulation threads are competing for the same execution resources. The data suggests that a CPU with more cores would allow the RTX 4090 to stretch its legs more, especially at lower resolutions. The i3-12100F is a good budget processor, but in this pairing, it is the clear limiting factor for achieving maximum frame rates.

Settings Recommendations

Based on the measured data, the most sensible approach for this pairing is to prioritize resolution over graphical presets. The sweet spot is 1440p. At this resolution, the High preset yields an average of 108.6 FPS, and the Ultra preset yields 101.6 FPS. Both are very playable and offer a significant visual upgrade over 1080p. The difference between High and Ultra at 1440p is only 7 FPS, so choosing Ultra is a reasonable choice if you want the best image quality without a major performance hit.

If you prefer to play at 4K, the data suggests that the Medium or High presets are the best choices. The 4K Medium average is 106.4 FPS, which is smooth, but the 4K High average of 80.3 FPS is also perfectly playable. The 4K Ultra preset, at 77.3 FPS, is still above 60 FPS, but the gains over High are marginal. Given that the CPU is not the bottleneck at 4K, you are essentially trading GPU load for visual quality. The 24 GB of VRAM ensures that even the Ultra preset at 4K will not run out of memory.

For players who prioritize maximum frame rates, sticking to 1080p is an option, but the data shows that the CPU will limit you to around 182 FPS on Low. The 1080p Ultra preset at 130 FPS is still excellent for a flight simulator. The recommendation is to avoid the Low preset at any resolution, as it does not offer a substantial performance increase over Medium in most cases, but it significantly reduces visual quality. The best overall experience is at 1440p with High or Ultra settings, balancing the CPU's limitations with the GPU's immense power.