Microsoft Flight Simulator

The AMD Ryzen 7 5700X and AMD Radeon RX 5700 XT pairing in Microsoft Flight Simulator presents a study in balance and its limits. The data shows a configuration that handles the sim's demands with competence, yet the frame rates reveal a system where the graphics card is the primary arbiter of performance across all tested resolutions. The measured results provide a clear picture of how this 2020-era flight sim scales with hardware that was contemporary to its release window.

Resolution Scaling

The most striking observation from the measured FPS data is how dramatically performance degrades as resolution increases. At 1080p with Low settings, the combo achieves 97 FPS. Moving to 1440p Low drops that to 82 FPS, a 15 FPS decline. At 4K Low, the average falls further to 56.7 FPS. This pattern is consistent across all settings presets. With High settings, the progression is 56 FPS at 1080p, 47.3 FPS at 1440p, and 35.3 FPS at 4K. The scaling from 1080p to 4K represents a reduction of roughly 37% in frame rate at High settings, and approximately 42% at Low settings.

This scaling behavior points directly to the GPU as the limiting component. The percentage drops are steep and consistent, which is characteristic of a pixel-bound workload. If the CPU were the bottleneck, we would expect to see a plateau in performance at lower resolutions where the processor's limits are reached. Instead, the frame rates continue to climb at 1080p, indicating the CPU has headroom that the GPU cannot exploit. The Ryzen 7 5700X, with its 8 cores and 16 threads, appears more than capable of feeding the RX 5700 XT in this title, as the resolution scaling is the dominant factor in performance variance.

The data implies that users targeting smooth gameplay at 4K will need to make significant compromises. The gap between 1440p and 4K is substantial, often representing a 25-30% performance hit. This suggests that 1440p is the practical ceiling for this combo if a user wishes to maintain higher frame rates, while 1080p offers the most consistent and responsive experience.

GPU Role

The AMD Radeon RX 5700 XT is built on the RDNA 1.0 architecture and features 8 GB of GDDR6 memory on a 256-bit bus, providing 448.0 GB/s of bandwidth. Its clock speeds are notable: a base of 1605 MHz, a game clock of 1755 MHz, and a boost clock of 1905 MHz. This memory configuration is a critical factor in Microsoft Flight Simulator, a game known for streaming vast amounts of terrain and scenery data.

The benchmark results suggest that the 8 GB frame buffer is sufficient at 1080p and 1440p, as the performance scaling is relatively smooth. However, at 4K, the combination of higher pixel count and the game's demand for texture data likely pressures the memory subsystem. The 35.3 FPS average at 4K High and 32.1 FPS at 4K Ultra indicate that the card is struggling to maintain playable rates, a symptom of both pixel throughput limits and potential memory bandwidth constraints.

The GPU's percentile ranking of 68 against all tested GPUs places it in the mid-to-upper tier, but its nearest rivals are mostly mobile parts, including the NVIDIA RTX A5000 Mobile and Intel Arc A350M. This suggests that while the RX 5700 XT is a capable desktop part, it is being compared against a field where other configurations have moved ahead. In the context of this specific game, the card's 9.754 TFLOPS of FP32 performance is the raw compute muscle, but the data shows it is the resolution, not the CPU, that dictates the final frame rate.

Settings Recommendations

Given the measured data, the optimal settings preset depends heavily on the target resolution. At 1080p, the Low preset yields 97 FPS, Medium 79.4 FPS, High 56 FPS, and Ultra 58 FPS. The similarity between High and Ultra is interesting, suggesting that the Ultra preset adds graphical features that are not fully taxing the GPU at this resolution, or that the CPU is beginning to become a secondary factor. For the most fluid experience at 1080p, Medium offers a significant jump over High while still maintaining a frame rate above 70 FPS.

At 1440p, the story changes. Low produces 82 FPS, Medium 61.4 FPS, High 47.3 FPS, and Ultra 43.9 FPS. The Medium preset appears to be the sweet spot here, providing a playable frame rate while likely retaining most visual fidelity. High and Ultra dip below 50 FPS, which may introduce noticeable stutter in a flight sim where smooth camera panning is essential.

At 4K, the data strongly suggests that users should avoid High and Ultra presets. The 35.3 FPS and 32.1 FPS averages are generally considered too low for a comfortable experience. The Low preset at 56.7 FPS is the only viable option, with Medium at 46.8 FPS being a borderline choice. The recommendation is clear: prioritize resolution over settings, or lower the resolution entirely to maintain visual quality at a higher frame rate.

FAQ

Q: What is the best resolution for this CPU/GPU combo in Microsoft Flight Simulator?

A: Based on the measured data, 1080p provides the highest frame rates across all presets, with a Low setting reaching 97 FPS and Medium at 79.4 FPS. 1440p is also viable, with Medium at 61.4 FPS, but 4K only delivers playable results on the Low preset at 56.7 FPS.

Q: Is the CPU or GPU the bottleneck in this configuration?

A: The resolution scaling data indicates the GPU is the limiting component. FPS drops significantly from 1080p to 4K (e.g., 56 to 35.3 FPS at High), while the Ryzen 7 5700X's 8-core, 16-thread configuration provides enough processing power to keep up, as shown by the consistent frame rates at lower resolutions.

Q: How does the RX 5700 XT's memory size affect performance?

A: The 8 GB of GDDR6 memory is sufficient for 1080p and 1440p, as frame rates scale predictably. At 4K, the performance drops sharply, suggesting the memory capacity or bandwidth is strained by the higher resolution's data demands.

Q: What is the difference in performance between High and Ultra presets at 1440p?

A: The measured data shows an average FPS of 47.3 at High and 43.9 at Ultra. This is a minor difference of 3.4 FPS, indicating that the Ultra preset does not significantly tax the system more than High at this resolution.

Q: What is the combo's rank among all tested configurations in this game?

A: The combo ranks 1332 out of 1795 tested combinations. This places it in the lower-middle portion of the field, suggesting that many other CPU/GPU pairings deliver higher frame rates in this specific title.

Q: Does the game favor the CPU's single-thread or multi-thread performance?

A: The Ryzen 7 5700X has strong multi-threaded scores (e.g., 22620 in Cinebench R23) and a single-thread score of 3193. The data does not show a CPU bottleneck, so both aspects of its performance appear adequate for the game's needs.

CPU Role

The AMD Ryzen 7 5700X is a Zen 3 architecture processor with 8 cores and 16 threads, running on the AM4 socket. Its base clock is 3.40 GHz, boosting up to 4.60 GHz. In Microsoft Flight Simulator, which is known for complex physics and AI calculations, this processor's multi-threaded capabilities are put to the test. Its benchmark scores are impressive, with a Cinebench R23 multi-core result of 22620 and a single-core result of 3193.

The data suggests that the CPU is not the limiting factor in this pairing. When comparing the FPS scaling, the 5700X's performance relative to its nearest rivals is telling. It sits within 0.2% of the AMD Ryzen 5 7600X and 0.1% of the Intel Core i9-11900KF in average benchmark scores. This places it in a competitive tier, but the game's measured performance is dominated by the GPU's capabilities.

The 65W TDP of the 5700X is efficient, and its 32 MB of shared L3 cache helps with data access. In flight sim, where the world is streamed continuously, this cache size can help reduce stutter. However, the benchmark results indicate that even with a capable CPU, the RX 5700 XT's pixel-pushing power is what ultimately defines the frame rate. The CPU is providing a solid foundation, but the GPU is the ceiling.

Measured FPS Breakdown

The measured FPS data provides a complete picture of this combo's performance. At 1920x1080, the Low preset delivers 97 FPS, Medium 79.4 FPS, High 56 FPS, and Ultra 58 FPS. The Ultra preset slightly outperforming High is a curious anomaly, possibly due to test variance or specific scene loading.

At 2560x1440, the results are 82 FPS (Low), 61.4 FPS (Medium), 47.3 FPS (High), and 43.9 FPS (Ultra). This resolution shows a more linear progression, with each preset offering a meaningful step down in performance.

At 3840x2160, the averages are 56.7 FPS (Low), 46.8 FPS (Medium), 35.3 FPS (High), and 32.1 FPS (Ultra). The 4K results are the most demanding, with only the Low preset maintaining a frame rate above 50 FPS. The gap between 1080p Low (97 FPS) and 4K Low (56.7 FPS) is 40.3 FPS, highlighting how quickly performance degrades as pixel count increases.

How This Combo Ranks

The combination of the Ryzen 7 5700X and RX 5700 XT ranks 1332 out of 1795 tested combos in Microsoft Flight Simulator. This places it in the 74th percentile of the tested field, meaning approximately 74% of other hardware pairings deliver better performance. This is a significant finding, as it suggests that this specific pairing, while competent, is not optimized for this particular game's demands.

The GPU's percentile rank of 68 is notably higher than the combo's in-game rank. This discrepancy indicates that the game is particularly demanding on the GPU, and the RX 5700 XT's position in the mid-range is not sufficient to push this combo higher in the rankings. The CPU's percentile rank of 83 is much stronger, reinforcing the notion that the processor is not the weak link.

The nearest rival data for the CPU shows it trading blows with the Ryzen 5 7600X and Intel Core i9-11900KF, with deltas of -0.2% and 0.1% respectively. For the GPU, the nearest rivals are mobile workstation parts like the RTX A5000 Mobile. This suggests that in a desktop context, the RX 5700 XT is aging, and its performance in this sim is reflective of its 2019 release date. The data implies that users seeking higher frame rates would need to consider a more powerful GPU, as the CPU has demonstrated it has headroom to support one.