Microsoft Flight Simulator

The AMD Ryzen 9 7900X and Radeon RX 7800 XT combination delivers a highly playable Microsoft Flight Simulator experience, but the optimal settings depend heavily on your display's native resolution. The data shows a clear hierarchy across the four presets, with the gap between Low and Ultra widening as resolution decreases. This analysis breaks down the measured performance to determine the best setting for each scenario.

Settings Recommendations

At 4K (3840x2160), the Ultra preset is the only option that fails to maintain a consistent 60 frames per second, averaging 46.6 FPS. High is the recommended choice for 4K, as it achieves 49.9 FPS—a 7% improvement over Ultra—while still providing the visual fidelity expected from a modern flight simulator. The Medium preset at 67.2 FPS is a viable alternative for users prioritizing smoothness, but High offers the best balance of image quality and fluidity. Low at 84.5 FPS is unnecessary at this resolution, as the visual compromises are too significant for the modest frame rate gain over Medium.

At 1440p (2560x1440), the situation becomes more forgiving. The Ultra preset averages 64.3 FPS, which is above the 60 FPS threshold and makes it the recommended choice for this resolution. High follows closely at 67.2 FPS, but the difference between the two is minimal enough that Ultra's enhanced detail is worth the slight performance trade-off. Medium at 91.4 FPS and Low at 118.9 FPS are both exceptionally smooth, yet they sacrifice too much visual quality for a simulator where atmosphere matters. The data suggests that 1440p Ultra is the sweet spot for this combo, delivering high fidelity without dipping below playable rates.

At 1080p (1920x1080), the Ultra preset averages 81.7 FPS, which is well above the playable threshold and the clear winner. High at 86.2 FPS offers only a 5% improvement, so the extra detail from Ultra is essentially free. Medium at 113.3 FPS and Low at 145.6 FPS are for competitive or high-refresh-rate displays, but for standard flight simulation, Ultra provides the definitive experience. Across all resolutions, the data indicates that this hardware pair is strong enough to run Ultra at 1080p and 1440p, while High is the pragmatic ceiling at 4K.

FAQ

Q: Can this combo run Microsoft Flight Simulator at 4K Ultra?

A: No, the measured average FPS at 3840x2160 with Ultra settings is 46.6 FPS, which falls below the 60 FPS target for smooth gameplay. High settings at 49.9 FPS are better, but still below 60, making Medium at 67.2 FPS the first preset to cross that threshold.

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

A: Ultra is the recommended preset at 2560x1440, with an average of 64.3 FPS. This is the only resolution where Ultra breaks the 60 FPS barrier, making it the ideal choice for high-fidelity visuals without compromising fluidity.

Q: How much performance is lost when moving from 1080p to 4K at the same settings?

A: The data shows a significant drop. For High settings, the average FPS falls from 86.2 at 1920x1080 to 49.9 at 3840x2160, a decrease of 42%. At Ultra, the drop is from 81.7 to 46.6, a 43% reduction.

Q: Is the CPU or GPU the limiting factor in this game?

A: The resolution scaling suggests the GPU is the primary bottleneck. As resolution increases from 1080p to 4K, the frame rate drops proportionally, which is characteristic of GPU-bound workloads. The CPU's strong single-thread performance (Cinebench R23 single-core score of 6168) is sufficient to feed the GPU at lower resolutions.

Q: What is the performance difference between Low and Ultra settings at 1080p?

A: At 1920x1080, Low averages 145.6 FPS while Ultra averages 81.7 FPS, meaning Ultra is 44% slower. However, both are well above playable rates, so the visual upgrade to Ultra is generally worth the frame rate cost.

Q: How does this combo rank among all tested configurations?

A: The combination ranks 672 out of 1795 tested combos, placing it in the top 37% of all configurations. This indicates a solid mid-to-high tier pairing that can handle the game's demands at most settings.

CPU Role

The AMD Ryzen 9 7900X is a 12-core, 24-thread processor based on the Zen 4 architecture, with a base clock of 4.70 GHz and a boost clock of 5.60 GHz. In Microsoft Flight Simulator, which is known for its heavy reliance on single-thread performance, this CPU's capabilities are well-suited. The Cinebench R23 single-core score of 6168 demonstrates strong per-core performance, while the multi-core score of 43695 shows that the processor can handle background tasks without impacting the game. The 64 MB of shared L3 cache is also beneficial, as it reduces memory latency for frequently accessed data.

The CPU's 3DMark scores provide further insight. The single-thread score of 1093 and the 2-thread score of 2137 indicate that the processor scales well with light threading, which is typical for flight simulators that rely on a few heavily loaded threads. The jump from 2-thread to 4-thread scores (4151) shows good multi-threading scaling, but the game's engine likely doesn't utilize all 24 threads effectively, as evidenced by the relatively modest gains in higher thread counts. The 8-thread score of 7798 is about double the 4-thread score, but the max-thread score of 12536 is only 60% higher than the 8-thread score, suggesting diminishing returns beyond 8 threads.

For this specific game, the CPU's role is to maintain a stable frame delivery, especially at lower resolutions where the GPU is less constrained. At 1080p, the difference between High (86.2 FPS) and Ultra (81.7 FPS) is only 5%, indicating that the CPU can keep up with the GPU's rendering demands. The processor's 83.2 GB/s memory bandwidth and DDR5 support also help reduce stuttering in complex scenes with dense scenery. In summary, the 7900X provides ample headroom for the RX 7800 XT, ensuring that the GPU becomes the limiting component as resolution increases.

How This Combo Ranks

The combination of the Ryzen 9 7900X and Radeon RX 7800 XT achieves a rank of 672 out of 1795 tested combos in Microsoft Flight Simulator. This places it in the 63rd percentile, meaning it outperforms approximately 63% of all tested configurations. The ranking reflects the balance between the CPU's strong single-thread performance and the GPU's mid-range capabilities. The CPU itself sits in the 93rd percentile among all CPUs, with an average benchmark score of 50556, while the GPU is in the 76th percentile with an average score of 32619.

Looking at the nearest rivals for the CPU, the Ryzen 9 7900X is nearly identical to the Intel Core Ultra 5 235, with a delta of -0.1%, and just 0.4% behind the AMD Ryzen 9 5900XT. The Intel Core i7-13850HX is 0.5% ahead, and the Intel Core i9-13980HX leads by 0.8%. These small deltas indicate that the CPU choice is not the primary differentiator in this game's performance; instead, the GPU plays a larger role. For the GPU, the RX 7800 XT is 0.2% behind the AMD FirePro S9300 X2 but 0.4% ahead of the NVIDIA P104-100 and 0.7% ahead of the NVIDIA T600 Mobile. These rival comparisons show that the combo's rank is competitive with other mid-to-high tier pairings, though it doesn't crack the top tier.

The rank of 672 suggests that while this combo is capable, there are many faster configurations. However, the measured FPS data indicates that the combo can run the game at high settings across all resolutions, which is the practical takeaway. The rank is a relative measure, and the actual gameplay experience is smooth at 1440p Ultra and 1080p Ultra, with 4K High being the only compromise.

Resolution Scaling

The measured FPS data reveals a clear pattern of performance degradation as resolution increases, which is typical for a GPU-bound workload. At Low settings, the average FPS drops from 145.6 at 1080p to 118.9 at 1440p (an 18% decrease) and then to 84.5 at 4K (a 42% decrease from 1080p). This steep drop at 4K indicates that the GPU's pixel throughput is the limiting factor, as the RX 7800 XT's 233.3 GPixel/s pixel rate is challenged by the 8.3 million pixels at 3840x2160.

For Medium settings, the progression is from 113.3 FPS at 1080p to 91.4 FPS at 1440p (19% drop) and then to 67.2 FPS at 4K (41% drop from 1080p). High settings show a similar trend: 86.2 FPS at 1080p, 67.2 FPS at 1440p (22% drop), and 49.9 FPS at 4K (42% drop). Ultra settings follow the same pattern: 81.7 FPS at 1080p, 64.3 FPS at 1440p (21% drop), and 46.6 FPS at 4K (43% drop). The consistency of the percentage drops across all settings—roughly 20% from 1080p to 1440p and another 20% from 1440p to 4K—strongly suggests that the GPU is the bottleneck, as the CPU's workload remains constant regardless of resolution.

This scaling behavior has practical implications. At 1080p, the combo is overkill for the GPU, allowing the CPU to drive high frame rates. At 1440p, the balance is nearly perfect, with Ultra settings staying above 60 FPS. At 4K, the GPU becomes the clear limiting factor, forcing users to drop to Medium or High to maintain playability. The data shows that the RX 7800 XT, with its 16 GB of GDDR6 memory and 624.1 GB/s bandwidth, is well-equipped for 1440p gaming but struggles with the demands of 4K, where the 49.9 FPS at High is the best playable option. The resolution scaling confirms that users should target 1440p for the best balance of visual quality and performance with this hardware.