Microsoft Flight Simulator

Microsoft Flight Simulator is a uniquely demanding title, and the combination of the AMD Ryzen 7 5800XT and AMD Radeon RX 7900 XT produces a distinct performance profile across resolutions and presets. The measured data reveals a system that is capable of high refresh rates at 1080p but transitions into a 60 FPS-class experience at 4K, with the CPU and GPU trading the bottleneck role depending on the settings load.

Resolution Scaling

The performance delta from 1080p to 4K is substantial and reveals how the system's load shifts. At 1920x1080 with Low settings, the average frame rate is 176.4 FPS, which drops to 142 FPS at 2560x1440 and further to 101.9 FPS at 3840x2160. This represents a 42% reduction in frame rate from 1080p to 4K at the lowest preset, indicating that even at lower graphical loads, the GPU is still the primary scaling factor, though the CPU's 8-core/16-thread configuration is keeping pace.

Moving to the High preset, the scaling is more aggressive: 104.9 FPS at 1080p falls to 85.4 FPS at 1440p and then to 60.3 FPS at 4K. The drop from 1440p to 4K is a 29% performance hit, which is a clear sign that the RX 7900 XT's 20 GB memory buffer and 800.0 GB/s bandwidth are being taxed by the higher pixel count. The gap between 1080p and 1440p at High settings is 19%, suggesting that the GPU is still the limiting component but the CPU's single-thread performance, evidenced by a 3dmark_single_thread score of 959, is sufficient to feed the graphics card at these resolutions.

The most telling data point is the Ultra preset scaling. At 1080p Ultra, the system produces 96.9 FPS, which is only 7% higher than the 4K High result of 60.3 FPS. However, at 4K Ultra, the average drops to 59.8 FPS, which is nearly identical to the 4K High score. This indicates that beyond a certain point, the GPU is fully saturated, and the frame rate is being constrained by the graphics card's raw compute power (51.48 TFLOPS FP32) rather than memory bandwidth or CPU throughput. The 1080p Low result of 176.4 FPS versus 4K Low of 101.9 FPS shows a 42% drop, confirming that pixel fill rate is the dominant factor in this flight simulator's engine.

GPU Role

The AMD Radeon RX 7900 XT is the star of this pairing, and its specifications directly explain the measured results. With a boost clock of 2394 MHz and a game clock of 2025 MHz, the GPU's compute throughput is substantial, yet the data shows that the 192 ROPs and 336 TMUs are the limiting factors at 4K. The 20 GB of GDDR6 memory on a 320-bit bus provides 800.0 GB/s of bandwidth, which is ample for the texture-heavy environments of Microsoft Flight Simulator, but the 4K Ultra result of 59.8 FPS suggests that the shading units (5376) are being pushed to their limit.

The GPU's benchmark scores corroborate its strong position. The passmark_g3d score of 29009 places it in the 82nd percentile of all GPUs, with its nearest rivals being the NVIDIA GeForce RTX 5080 Mobile (0% delta) and the NVIDIA CMP 70HX (0.3% faster). This means the RX 7900 XT is performing exactly as expected for its class. The geekbench_vulkan score of 160119 and opencl score of 169834 indicate strong compute performance, which is relevant for the physics and weather simulation aspects of the game.

The VRAM capacity plays a critical role in the scaling behavior. The 20 GB buffer is never a bottleneck at any resolution or preset, which is why the frame rate drops are smooth and predictable. However, the 4K Ultra result being only 0.5 FPS lower than 4K High (59.8 vs 60.3) suggests that the extra settings are not memory-intensive but rather shader and texture-rate intensive. The GPU's 459.6 GPixel/s pixel rate is the hard ceiling at 4K, and the data shows that hitting 60 FPS at 4K Ultra is the absolute limit of this card's capabilities. The RDNA 3.0 architecture with 84 ray accelerators does not appear to be a factor in these measured results, as the standard rasterization pipeline is the primary workload.

Settings Recommendations

The measured data provides clear guidance for optimizing the experience. For 4K displays, the High preset is the sweet spot, delivering 60.3 FPS, which is just above the 60 FPS threshold for smooth gameplay. The Ultra preset at 4K drops to 59.8 FPS, a marginal 0.8% reduction, making it a viable choice for users who prioritize visual fidelity over a slight frame rate dip. The Medium preset at 4K offers 78.7 FPS, a 30% improvement over High, which could be preferable for users with high-refresh-rate 4K monitors.

At 1440p, the High preset at 85.4 FPS is the recommended starting point, as it balances visual quality with a comfortable margin above 60 FPS. The Ultra preset at 80 FPS is also playable, but the 6% drop from High might not be worth the extra graphical load. For competitive or fast-paced flying, the Low preset at 142 FPS at 1440p provides a significant advantage, though it compromises the visual fidelity that makes this game immersive.

For 1080p users, the High preset at 104.9 FPS is the best overall choice, as it provides a smooth experience on standard 60 Hz displays and is within reach of 144 Hz panels. The Ultra preset at 96.9 FPS is also viable, and the difference between High and Ultra is only 7.6%, which is less than the jump from Medium to High (22.5%). The Low preset at 176.4 FPS is only recommended for users with 165 Hz or higher refresh rate monitors, as the visual quality loss is significant. The data suggests that the Medium preset (135.4 FPS at 1080p) offers the best balance of frame rate and visual quality for most users, as it is 29% faster than High while retaining most of the graphical features.

Measured FPS Breakdown

The complete dataset reveals a consistent pattern across all resolutions and presets. At 1920x1080, the frame rates range from 96.9 FPS (Ultra) to 176.4 FPS (Low), with Medium at 135.4 FPS and High at 104.9 FPS. The scaling from Low to Ultra shows a 45% performance reduction, which indicates that the Ultra preset is heavily taxing the GPU's shader units.

At 2560x1440, the results are 80 FPS (Ultra), 85.4 FPS (High), 109.1 FPS (Medium), and 142 FPS (Low). The gap between High and Ultra narrows to 6.3% at this resolution, compared to 7.6% at 1080p, suggesting that the GPU is becoming more pixel-bound. The Medium preset at 1440p (109.1 FPS) is nearly identical to the High preset at 1080p (104.9 FPS), showing that the resolution increase is offset by the settings reduction.

At 3840x2160, the results are 59.8 FPS (Ultra), 60.3 FPS (High), 78.7 FPS (Medium), and 101.9 FPS (Low). The most striking data point is that High and Ultra are within 0.5 FPS of each other at 4K, indicating that the Ultra preset's additional effects are not significantly impacting the GPU's pixel throughput. The jump from Medium to High at 4K is a 23.4% reduction, while from Low to Medium is a 22.8% reduction, showing a linear scaling pattern that is characteristic of a GPU-bound scenario. The combo rank of 376 out of 1795 places this configuration in the top 21% of all tested combinations, confirming its high-end status.

FAQ

Q: Can this system maintain 60 FPS at 4K Ultra in Microsoft Flight Simulator?

A: Yes, but just barely. The measured 4K Ultra average is 59.8 FPS, which is 0.3% below the 60 FPS mark. The 4K High preset achieves 60.3 FPS, so users seeking a guaranteed 60 FPS should use High settings.

Q: How does the CPU's performance compare to its nearest rivals?

A: The AMD Ryzen 7 5800XT has an avgBenchmarkScore of 29774, placing it in the 86th percentile of all CPUs. It is 0.1% faster than the AMD Ryzen 7 PRO 5755GE and 0.3% faster than the AMD Ryzen AI 7 PRO 360, but 0.3% slower than both the AMD Ryzen 7 6800HS and AMD Ryzen 7 7840H.

Q: What is the impact of the GPU's 20 GB VRAM on performance?

A: The 20 GB GDDR6 memory buffer is sufficient for all tested settings, as the frame rate scaling from High to Ultra at 4K is only 0.5 FPS. The memory bandwidth of 800.0 GB/s is not a limiting factor in any of the measured scenarios.

Q: Is the system more CPU-limited or GPU-limited in this game?

A: The data indicates a GPU-limited system across all resolutions. At 1080p Low, the frame rate is 176.4 FPS, which suggests the CPU can handle high draw calls, but the GPU becomes the bottleneck as resolution and settings increase. The 4K Ultra result of 59.8 FPS is consistent with the GPU's pixel rate limit.

Q: How does the GPU's benchmark score compare to its nearest rival?

A: The AMD Radeon RX 7900 XT has an avgBenchmarkScore of 38358, placing it in the 82nd percentile. It is exactly matched with the NVIDIA GeForce RTX 5080 Mobile (0% delta) and is 0.3% faster than the NVIDIA CMP 70HX, but 0.4% slower than the NVIDIA GeForce MX570.

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

A: The High preset at 85.4 FPS is recommended for 1440p, as it provides a comfortable margin above 60 FPS. The Ultra preset at 80 FPS is also viable, but the 6% frame rate reduction may not justify the visual improvement for all users.