Microsoft Flight Simulator

Microsoft Flight Simulator is notoriously demanding, and the data for the Intel Core Ultra 5 225 paired with the AMD Radeon RX 7900 XTX shows a system that can handle it with authority across the board. The measured results reveal a configuration that is well-balanced, though the specific bottlenecks shift predictably as you change resolution and detail settings. This analysis breaks down exactly what those frame rates mean for your experience, from 1080p to 4K.

Resolution Scaling

The most dramatic shift in performance occurs when moving from 1440p to 4K. At High settings, the average frame rate drops from 91 FPS at 2560x1440 to 67 FPS at 3840x2160, a 26% reduction. This is a significant hit, but it still leaves the game comfortably playable on a high-refresh-rate 4K display. The jump from 1080p to 1440p at the same High preset is less severe, going from 112 FPS down to 91 FPS, which is an 18.75% drop. This indicates that while the GPU is becoming the primary limiter at higher pixel counts, it has enough headroom to keep the experience smooth even as the rendering load increases.

The scaling pattern is even more revealing at the Low preset. Here, the 1080p result is an extremely high 192 FPS, which drops to 155 FPS at 1440p and then to 114 FPS at 4K. The percentage drop from 1080p to 4K at Low settings is 40.6%, which is steeper than the 40.2% drop seen at High settings between the same resolutions. This suggests that at lower settings, the CPU (Intel Core Ultra 5 225) has to work harder to feed the GPU, and the frame rate becomes more sensitive to resolution as the GPU load decreases. The 4K Low result of 114 FPS is still excellent, proving that even with a massive pixel count, this GPU is never truly idle.

Looking at the Medium preset, which is the only one with full min/max data, the scaling is consistent. The average FPS drops from 149 at 1080p to 120 at 1440p and finally to 89 at 4K. The minimum frame rates also scale down, from 127 to 102 to 76, respectively. This shows that the frame pacing remains stable across resolutions; the game doesn't suffer from sudden stutters as the resolution increases, just a linear reduction in overall throughput. This is the hallmark of a system where the GPU has ample memory bandwidth and processing power to handle the increasing pixel workload without hiccups.

The data indicates that this combo is a 4K-capable machine for Microsoft Flight Simulator, but the settings need to be chosen wisely. At 4K Ultra, the average FPS is 64, which is on the edge of smoothness for some, while 4K High at 67 FPS is nearly identical. The sweet spot for a locked 60 FPS experience at 4K would be High settings, as it provides a solid margin above the 60 FPS threshold. The 1440p results are universally high, with even the Ultra preset achieving 86 FPS, making that resolution the best option for those who want maximum visual fidelity without compromising on frame rate.

GPU Role

The AMD Radeon RX 7900 XTX is the clear workhorse here, and its specifications explain why it delivers such strong frame rates. With 24 GB of GDDR6 memory on a 384-bit bus, it has a massive 960.0 GB/s of memory bandwidth. This is crucial for a game like Microsoft Flight Simulator, which streams vast amounts of terrain and texture data. The high bandwidth ensures that the GPU is never starved for data, allowing it to maintain high frame rates even when flying over dense, detailed areas. The large frame buffer also means that even at 4K with Ultra textures, the card won't run out of VRAM, preventing the severe stuttering that can occur when a GPU has to swap data in and out of system memory.

The card's clock speeds are also a factor in its performance. The boost clock of 2498 MHz and a game clock of 2365 MHz allow it to process the complex shaders and geometry of the flight simulator efficiently. The 6144 shading units provide a massive amount of raw compute power, which is reflected in its strong performance across all settings. The GPU's PassMark G3D score of 31238 places it in the 64th percentile of all GPUs, showing that it is a high-end part, though its nearest rivals in the database are older cards like the NVIDIA GeForce GTX 1060 3 GB and NVIDIA TITAN Xp, which highlights how the benchmark's average score can be skewed by a wide range of tests.

The difference between the Low and High presets at 4K highlights the GPU's headroom. At Low settings, the card delivers 114 FPS, but at High settings, it drops to 67 FPS. This 70% performance penalty is the cost of enabling the more complex lighting, shadow, and terrain detail algorithms. The fact that the GPU is still able to push 67 FPS at 4K High shows that it is a top-tier part, but it also shows that even the best hardware must make concessions in the most demanding flight sim on the market. The GPU's role is to render the world, and it does so admirably, but the settings menu is where you decide how much of that world you want to see.

CPU Role

The Intel Core Ultra 5 225, with its 10 cores and 10 threads, plays a critical supporting role in this setup. The benchmark results show this is a strong mid-range processor, with a PassMark multithread score of 30459 and a single-thread score of 4412, placing it in the 85th percentile of all CPUs. Its performance is nearly identical to its nearest rivals, including the AMD Ryzen 5 5600F and the AMD Ryzen 5 5500X3D, with a deltaPct of 0 and -0.2, respectively. This means that in general compute tasks, the CPU is not a bottleneck, but its role in a flight simulator is more specific.

Microsoft Flight Simulator is known for being heavily dependent on single-core performance for its main simulation thread. The CPU's boost clock of 4.90 GHz is crucial here, as it ensures that the primary game logic, physics calculations, and draw call submissions can be processed quickly. The high single-thread score of 3655 in Cinebench R23 confirms that the chip has the necessary single-core muscle to keep the game's engine running smoothly. The data shows that the CPU is not holding the GPU back, as the frame rates scale consistently with resolution, which is a classic sign of a GPU-bound scenario.

However, the CPU's importance becomes more apparent at lower resolutions and settings. At 1080p Low, the system hits 192 FPS, which is a very high number that requires the CPU to submit frames to the GPU at an extremely fast rate. If the CPU were weaker, this frame rate would likely be limited. The fact that it can push past 190 FPS shows that the Core Ultra 5 225 is more than capable of feeding the RX 7900 XTX even in the most CPU-intensive scenarios. The CPU's 20 MB of shared L3 cache also helps by keeping frequently accessed game data close to the cores, reducing latency and improving overall responsiveness.

Settings Recommendations

The measured data provides a clear guide for optimizing your experience. For a 4K display, the High preset is the best choice. It delivers an average of 67 FPS, which is just above the 60 FPS target for smooth gameplay, and it represents a significant visual upgrade over Medium. The jump from High to Ultra at 4K is not worth it, as the performance drops to 64 FPS, a negligible visual gain for a noticeable performance hit. The Medium preset at 4K, at 89 FPS, is a great option for those who prefer higher frame rates over absolute visual fidelity, but High offers a better balance.

For 1440p, the field is wide open. The Ultra preset runs at 86 FPS, which is excellent and provides the best visual experience without any performance concerns. If you have a 144Hz monitor, the Medium preset at 120 FPS is the way to go, but Ultra is the recommended setting for most users, as it provides a high-quality image at a frame rate that is still very smooth. The 1080p results are so high that they are mostly academic; even the Ultra preset at 107 FPS is more than enough for any display, making this resolution a non-issue for this hardware.

The data suggests that Ultra settings are best reserved for 1440p and below. At 4K, the performance difference between High and Ultra is only 3 FPS, which suggests that the Ultra preset is likely pushing the GPU's limits in a way that isn't efficient. The High preset is the definitive recommendation for 4K, offering a robust 67 FPS average. For those with high-refresh-rate 1440p monitors, the Medium preset offers a great middle ground, but the Ultra preset is the most visually impressive and still maintains a playable frame rate.

FAQ

Q: Is this system good enough for 4K gaming in Microsoft Flight Simulator?

A: Yes, the data shows it is capable. At 4K with High settings, it averages 67 FPS, which is above the 60 FPS target. With Medium settings, it averages 89 FPS, providing a smoother experience.

Q: What is the best setting for a 1440p monitor?

A: The Ultra preset is the best choice for 1440p. It achieves an average of 86 FPS, which is both visually stunning and smooth. If you prefer higher frame rates, the Medium preset offers 120 FPS.

Q: How much of a performance hit is there from 1080p to 4K?

A: At High settings, the average frame rate drops from 112 FPS at 1080p to 67 FPS at 4K, a 40% reduction. This is a significant hit, but the 4K performance is still playable.

Q: Does the CPU bottleneck the GPU in this game?

A: No. The frame rates scale consistently with resolution, indicating a GPU-bound scenario. The CPU's high boost clock of 4.90 GHz and strong single-thread performance are sufficient to keep up with the GPU.

Q: What is the difference in performance between High and Ultra settings?

A: The difference is minimal. At 4K, High averages 67 FPS while Ultra averages 64 FPS. At 1440p, High averages 91 FPS while Ultra averages 86 FPS. The visual upgrade is often not worth the performance cost.

Q: Is the 24 GB of VRAM on the RX 7900 XTX useful for this game?

A: Yes, it is beneficial. Microsoft Flight Simulator streams large amounts of data, and the large frame buffer ensures that the GPU can hold high-resolution textures without stuttering, especially at 4K.

Measured FPS Breakdown

1920x1080:

• Low: 192 FPS average. The maximum performance of this setup, likely limited by the CPU's ability to generate frames.
• Medium: 149 FPS average, with a minimum of 127 FPS and a maximum of 172 FPS. This is a great balance for high-refresh-rate monitors.
• High: 112 FPS average. A very strong result that offers a significant visual upgrade over Medium.
• Ultra: 107 FPS average. The highest visual quality is still extremely playable at 1080p, with nearly the same performance as High.

2560x1440:

• Low: 155 FPS average. A great result for competitive or high-refresh-rate play.
• Medium: 120 FPS average, with a minimum of 102 FPS and a maximum of 138 FPS. This is the sweet spot for 144Hz displays.
• High: 91 FPS average. An excellent balance of visual quality and performance for most users.
• Ultra: 86 FPS average. This is the recommended preset for 1440p, providing a top-tier visual experience without sacrificing smoothness.

3840x2160:

• Low: 114 FPS average. Surprisingly high for 4K, showing the GPU's raw power.
• Medium: 89 FPS average, with a minimum of 76 FPS and a maximum of 102 FPS. This is a great option for a buttery-smooth 4K experience.
• High: 67 FPS average. The best choice for a balanced 4K experience, offering a good mix of visuals and performance.
• Ultra: 64 FPS average. The highest settings are possible at 4K, but the performance is close to the edge of the 60 FPS threshold.