Microsoft Flight Simulator

Microsoft Flight Simulator is a demanding title that stresses both processor and graphics card, and the combination of the Intel Core i7-13700K with the AMD Radeon RX 6700 XT produces a distinctive performance profile. The benchmark data shows a system that is capable of smooth flight in many scenarios but requires careful settings management to maintain high frame rates at the most demanding resolutions. This analysis breaks down the measured FPS data to understand the balance between the CPU and GPU in this specific pairing.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals a classic transition from a CPU-bound to a GPU-bound workload. At 1920x1080, the average frame rates are high across all settings, suggesting the CPU is capable of feeding the GPU with enough data to keep it busy. The data shows a 123.6 FPS average at Low settings, which indicates that the i7-13700K has significant headroom at this resolution. However, as the resolution increases to 2560x1440 and then to 3840x2160, the frame rates drop considerably, indicating that the GPU becomes the primary limiting factor. The scaling is not linear; the performance penalty for moving from 1080p to 1440p is significant, but the drop from 1440p to 4K is even more severe, which is typical for a GPU with a 192-bit memory bus and 384.0 GB/s of bandwidth.

The data suggests that the Radeon RX 6700 XT is the bottleneck at higher resolutions. For instance, at High settings, the frame rate drops from 72.7 FPS at 1080p to 56.9 FPS at 1440p, a decrease of roughly 22%. The jump to 4K High yields 42.6 FPS, a further 25% reduction. This pattern shows that while the CPU can handle the simulation's complex calculations, the GPU's shading units and memory bandwidth are overwhelmed by the increased pixel count. The gap between Low and Ultra settings also widens with resolution, which points to the GPU struggling with the increased shading and texture work at 4K Ultra, resulting in a 39.4 FPS average.

This indicates that for users with high refresh rate 1080p monitors, this combo is well-suited, but for 4K gaming, the user must be willing to compromise on settings to achieve playable frame rates. The data shows that the difference between 1440p and 4K is much more pronounced than the difference between 1080p and 1440p, reinforcing the idea that the 4K resolution is pushing the GPU beyond its comfortable performance envelope.

CPU Role

The Intel Core i7-13700K is a 16-core, 24-thread processor based on the Raptor Lake architecture, with a base clock of 3.40 GHz and a boost clock of 5.40 GHz. Its benchmark scores are robust, with a Cinebench R23 multicore score of 39000 and a single-core score of 5505, placing it in the 93rd percentile of all CPUs. This high single-thread performance is critical for Microsoft Flight Simulator, which often relies heavily on a few main threads for simulation logic. The data implies that the CPU is rarely the limiting factor in this pairing, as evidenced by the high frame rates at 1080p Low, where the GPU is less stressed.

The processor's 30 MB of shared L3 cache and support for DDR4 and DDR5 memory further bolster its ability to handle the game's large world data. In the measured results, the CPU's strength is most apparent at lower resolutions and settings where the GPU is not saturated. For example, the 123.6 FPS at 1080p Low is a strong indicator that the CPU can push far more frames than the GPU can render at higher settings. The i7-13700K's performance is close to its nearest rivals, with a negligible deltaPct of -0.1% compared to the Intel Core i7-13700KF and 0.4% compared to the Intel Core i9-12900F, suggesting that this processor is well-matched with other high-end options.

The data suggests that the CPU provides a solid foundation for the game, ensuring that the GPU is the bottleneck in most scenarios. The processor's high boost clock of 5.40 GHz is particularly valuable in a flight simulator where the main thread's performance can directly influence the minimum frame rate, even if the average frame rate is primarily GPU-limited. The Passmark multithread score of 45887 and the 3DMark max threads score of 12412 further confirm that the CPU has the multi-threaded headroom to handle background tasks and complex scenery loading without causing stutters.

GPU Role

The AMD Radeon RX 6700 XT is a RDNA 2.0 architecture GPU with 2560 shading units and 12 GB of GDDR6 memory on a 192-bit bus, providing a bandwidth of 384.0 GB/s. With a boost clock of 2581 MHz and a game clock of 2424 MHz, it delivers 13.21 TFLOPS of FP32 performance. This places the GPU in the 77th percentile of all GPUs, indicating a solid mid-to-high-range performer. However, the benchmark results show that it is the primary constraint in this system, especially at 4K resolution.

The GPU's 12 GB of VRAM is a significant asset for Microsoft Flight Simulator, which loads large textures for terrain and aircraft. However, the 192-bit memory bus is a limiting factor at high resolutions. The data shows that at 4K Ultra, the frame rate drops to 39.4 FPS, which is a demanding scenario for the GPU. The performance relative to its nearest rivals is interesting; it is 0.7% behind the AMD Radeon RX 6800, but 1.3% ahead of the NVIDIA RTX A5000. This indicates that the RX 6700 XT is positioned competitively, but it does not have the raw throughput to handle 4K Ultra settings in this simulation.

The GPU's role becomes more critical as settings are increased. The gap between Low and Ultra at 1080p is 57.4 FPS (from 123.6 to 66.2), but at 4K, that gap narrows to 30.6 FPS (from 70 to 39.4). This suggests that at lower resolutions, the CPU can still feed the GPU, but at 4K, the GPU's ceiling is reached, and the settings have a smaller relative impact. The GPU's DirectX 12 and Vulkan scores from the benchmark suite, including a Passmark G3D score of 19786, confirm its capability, but the measured FPS data clearly shows its limits in this title.

Measured FPS Breakdown

The measured FPS data provides a clear picture of the system's performance across different configurations. At 1920x1080, the system performs admirably, with average frame rates ranging from 66.2 FPS at Ultra to 123.6 FPS at Low. The Medium setting yields 94.6 FPS, and High gives 72.7 FPS. This makes 1080p a very playable resolution for this combo, with even the Ultra preset providing a decent experience.

Moving to 2560x1440, the frame rates drop but remain respectable. The Low setting produces 93.9 FPS, Medium drops to 74.2 FPS, and High and Ultra yield 56.9 FPS and 52.6 FPS, respectively. This resolution is a good balance between visual fidelity and performance, though the Ultra preset is starting to show strain. At 3840x2160, the system struggles to maintain high frame rates. The Low setting is the only one that breaks 60 FPS, with an average of 70 FPS. Medium yields 55.7 FPS, High drops to 42.6 FPS, and Ultra is the most demanding, producing an average of 39.4 FPS.

The data reveals a consistent pattern: the scaling from Low to Ultra at each resolution is linear, but the performance hit from increasing resolution is exponential. The delta between the Low and Ultra settings is roughly 57 FPS at 1080p, 41 FPS at 1440p, and 30 FPS at 4K. This demonstrates that the GPU is increasingly the bottleneck as resolution rises, making the settings slider less impactful at higher resolutions. For users targeting 60 FPS, the data suggests that 1440p High or 4K Low are the ceiling for this combination.

How This Combo Ranks

In the grand scheme of tested hardware combinations, this pairing of the Intel Core i7-13700K and AMD Radeon RX 6700 XT ranks 983rd out of 1795 combos for Microsoft Flight Simulator. This places it in the middle of the pack, which is a reasonable position given that the CPU is a high-end model while the GPU is a mid-range performer. The rank reflects the fact that the GPU's performance is the limiting factor, preventing this combo from reaching the top tiers where more powerful graphics cards are paired with equally capable processors.

The ranking suggests that while the CPU is in the 93rd percentile of all CPUs, the GPU's 77th percentile ranking drags the overall combo down. The benchmark results show that the system is not a top-tier performer for this game, but it is far from the bottom. The data indicates that this is a balanced pairing for 1080p and 1440p gaming, but it is not optimized for 4K. The combo's rank is a direct consequence of the GPU's inability to maintain high frame rates at 4K Ultra, where the 39.4 FPS average is a significant bottleneck. In contrast, the CPU's strong performance ensures that it does not hold the system back, even at lower resolutions. The overall ranking of 983 out of 1795 suggests that many other combinations offer better performance, primarily due to more powerful GPUs, but this specific setup provides a competent, mid-range experience for flight simulation enthusiasts.