Microsoft Flight Simulator

Microsoft Flight Simulator presents one of the most demanding workloads in modern PC gaming, and the combination of the AMD Ryzen 5 7600X and AMD Radeon RX 6700 XT yields a dataset that clearly delineates the roles of the CPU and GPU across resolutions and settings. The measured frame rates, spanning three resolutions and four quality presets, indicate a system that is highly capable at 1080p but increasingly GPU-bound as pixel count and visual fidelity rise. This analysis interprets the measured FPS data to explain the scaling behavior, component roles, and expected performance characteristics of this pairing.

Resolution Scaling

The measured FPS data shows a pronounced and predictable penalty as resolution increases from 1920x1080 to 3840x2160, with the magnitude of the drop heavily influenced by the selected graphics preset. At the Low settings preset, the transition from 1080p to 4K results in a reduction from 121.7 FPS to 72.2 FPS, a drop of 49.5 FPS or approximately 40.7%. This indicates that even at the lowest visual load, the GPU is still the primary limiting factor when moving to higher resolutions, though the CPU's influence is more apparent at 1080p where the frame rate is highest.

The scaling pattern shifts with the Medium preset, where the 1080p average of 91.4 FPS falls to 56.2 FPS at 4K. This represents a 35.2 FPS decline (38.5%), suggesting that the additional shading and texture work begins to saturate the GPU's capabilities more uniformly. At High settings, the 1080p result of 71.5 FPS drops to 40.4 FPS at 4K, a 31.1 FPS reduction (43.5%). The Ultra preset shows a similar trend, with 65.7 FPS at 1080p falling to 41.7 FPS at 4K, a 24.0 FPS decrease (36.5%), though the absolute frame rates at 4K for High and Ultra are nearly identical (40.4 vs 41.7 FPS), suggesting a ceiling is being approached.

The data reveals that the scaling from 1440p to 4K is steeper than the scaling from 1080p to 1440p for all presets, which is typical for a GPU-bound scenario. For instance, at High settings, the drop from 1440p (54.9 FPS) to 4K (40.4 FPS) is 14.5 FPS, while the drop from 1080p (71.5 FPS) to 1440p (54.9 FPS) is 16.6 FPS. This indicates that the RX 6700 XT's memory bandwidth of 384.0 GB/s and 12 GB of VRAM are sufficient to handle the increased pixel throughput, but the rendering workload scales nearly linearly with pixel count. The limiting component is clearly the GPU, as the CPU's frame rate headroom is only exposed at lower resolutions and presets.

CPU Role

The AMD Ryzen 5 7600X, with its 6 cores and 12 threads, plays a critical, yet secondary, role in this game's measured performance. The CPU's Zen 4 architecture, running at a base clock of 4.70 GHz and a boost clock of 5.30 GHz, provides the single-thread performance necessary for simulation logic. In synthetic benchmarks, the processor scores 3,406 in Cinebench R23 single-core and 24,128 in multi-core, placing it in the 83rd percentile of all CPUs. This strong single-core result is directly relevant to Microsoft Flight Simulator, which relies heavily on a primary simulation thread.

The data indicates that the CPU is not the bottleneck in most measured scenarios, as evidenced by the frame rate scaling with resolution. If the CPU were the primary limiter, the FPS would remain static across resolutions. Instead, the FPS drops consistently as resolution increases, confirming that the GPU is the limiting factor. However, the CPU's performance ceiling is visible at 1080p with Low settings, where the 121.7 FPS average is the highest recorded in the dataset. This suggests that at this point, the CPU is able to feed the GPU sufficiently, and the frame rate is closer to the CPU's maximum output for this workload.

The Ryzen 5 7600X's performance relative to its nearest rivals, as shown by average benchmark scores, is telling. The processor's average score of 26,272 is nearly identical to the AMD Ryzen 7 PRO 6850U (26,262, deltaPct 0) and the AMD Ryzen 7 7735U (26,305, deltaPct -0.1). This indicates that for this game, the 7600X's raw compute capability is on par with those mobile-oriented chips, which is noteworthy given the 7600X's higher boost clock. The L3 cache of 32 MB (shared) and dual-channel DDR5 memory support with 83.2 GB/s bandwidth provide ample data throughput for the simulation's asset streaming, but the data shows that the CPU's contribution to the final FPS is largely independent of the resolution, meaning the GPU is the sole arbiter of performance at higher visual loads.

GPU Role

The AMD Radeon RX 6700 XT is the decisive component in this pairing, as the measured FPS data shows a clear and consistent dependency on its workload. The GPU's RDNA 2.0 architecture, built on a 7 nm process, features 2,560 shading units and 40 ray accelerators, running at a boost clock of 2,581 MHz. Its 12 GB of GDDR6 memory on a 192-bit bus provides 384.0 GB/s of bandwidth, which is a critical factor for a game like Microsoft Flight Simulator that streams vast amounts of terrain and scenery data.

The GPU's performance is best understood through its percentile ranking and rival comparisons. The RX 6700 XT sits in the 77th percentile of all GPUs, with an average benchmark score of 33,721. Its nearest rival, the AMD Radeon RX 6800, scores 33,493 (deltaPct 0.7), meaning the 6700 XT is just 0.7% ahead of the higher-tier card in aggregate benchmarks. Conversely, the NVIDIA RTX A5000 scores 33,294 (deltaPct 1.3), putting the 6700 XT 1.3% ahead of that professional card. This close grouping suggests that the 6700 XT's performance is well-balanced for its class, but the data shows that Microsoft Flight Simulator is demanding enough to push it to its limits at 4K.

The measured FPS confirms the GPU's role as the primary bottleneck. At 4K, the difference between Low and Ultra settings is stark: 72.2 FPS versus 41.7 FPS, a 30.5 FPS difference. This 42.2% performance penalty for enabling Ultra settings indicates that the GPU's compute and memory subsystems are heavily taxed by the increased geometric detail and texture resolution. The fact that the High (40.4 FPS) and Ultra (41.7 FPS) presets at 4K yield nearly identical results is particularly telling—it suggests that the GPU is hitting a hard performance wall, likely due to memory bandwidth saturation or shader occupancy limits, rather than a gradual scaling of workload. The GPU's pixel rate of 165.2 GPixel/s and texture rate of 413.0 GTexel/s are sufficient for 1080p and 1440p, but at 4K, the rendering pipeline saturates, capping frame rates in the low 40s.

FAQ

Q: What is the highest average FPS recorded for this system?

A: The highest average FPS is 121.7 FPS, achieved at 1920x1080 resolution with the Low settings preset.

Q: How does the Ryzen 5 7600X compare to its closest rival in synthetic benchmarks?

A: The Ryzen 5 7600X has an average benchmark score of 26,272, which is virtually identical to the AMD Ryzen 7 PRO 6850U (26,262, deltaPct 0) and within 0.2% of the AMD Ryzen 7 5700X (26,214).

Q: Is the system capable of 4K gaming at playable frame rates?

A: At 4K (3840x2160), the system averages 72.2 FPS on Low settings and 40.4 FPS on High settings. For a smooth experience, 4K is only viable at Low or Medium settings, as Medium averages 56.2 FPS.

Q: Which component is the primary bottleneck at 1440p and 4K?

A: The GPU is the primary bottleneck. The FPS drops consistently with increasing resolution, indicating that the AMD Radeon RX 6700 XT's rendering capability is the limiting factor, not the CPU.

Q: What is the FPS difference between the Ultra and Low presets at 1440p?

A: At 2560x1440, the Low preset averages 96.7 FPS, while the Ultra preset averages 53.2 FPS. This is a difference of 43.5 FPS, or a 45.0% reduction in performance.

Q: How does the RX 6700 XT's benchmark score compare to the RX 6800?

A: The RX 6700 XT has an average score of 33,721, which is 0.7% higher than the AMD Radeon RX 6800's score of 33,493.

Measured FPS Breakdown

The following table details the exact average frame rates measured for the AMD Ryzen 5 7600X and AMD Radeon RX 6700 XT combination across all tested resolutions and settings.

1920x1080 (1080p)

• Low: 121.7 FPS
• Medium: 91.4 FPS
• High: 71.5 FPS
• Ultra: 65.7 FPS

2560x1440 (1440p)

• Low: 96.7 FPS
• Medium: 72.9 FPS
• High: 54.9 FPS
• Ultra: 53.2 FPS

3840x2160 (4K)

• Low: 72.2 FPS
• Medium: 56.2 FPS
• High: 40.4 FPS
• Ultra: 41.7 FPS

The data shows a clear hierarchy: 1080p is playable at all settings, with even Ultra averaging above 60 FPS. At 1440p, Low and Medium settings remain above 60 FPS, but High and Ultra fall below that threshold, averaging 54.9 and 53.2 FPS respectively. At 4K, only the Low preset achieves a playable average of 72.2 FPS, while Medium dips to 56.2 FPS, and High and Ultra both fall below 42 FPS. The system's overall rank in the game's benchmark database is 992 out of 1,795 combinations, placing it in the upper-middle tier of tested hardware configurations.