Microsoft Flight Simulator

Microsoft Flight Simulator presents a unique workload where the AMD Ryzen 5 2600 and AMD Radeon RX 7900 XT combination delivers a wide performance envelope across resolutions. The measured data shows this pairing moves from a highly playable 119.2 FPS average at 1080p Low to a demanding 55.7 FPS at 4K Ultra, revealing a system that scales predictably with both graphical fidelity and pixel count. This analysis breaks down the measured FPS, the roles of each component, and how this specific combo ranks against the broader database.

Resolution Scaling

The performance drop from 1080p to 4K is substantial but not uniform, indicating a shift in the bottleneck as resolution increases. At 1080p Low, the system achieves 119.2 FPS, which is a high ceiling for a flight simulator. However, moving to 1440p Low reduces the average to 110.6 FPS, a modest decline of 8.6 FPS. The trend continues to 4K Low, where the average falls to 98.4 FPS. This progression suggests that at lower settings, the CPU is still able to feed the GPU adequately, but the GPU is beginning to take on more work.

The scaling story changes dramatically at higher settings. At 1080p Ultra, the combo produces 94.4 FPS, which drops to 80.2 FPS at 1440p Ultra, and then plummets to 55.7 FPS at 4K Ultra. The drop from 1440p to 4K at Ultra is a steep 24.5 FPS decline. This steep curve at Ultra settings indicates that the RX 7900 XT becomes the primary limiting factor at 4K, as the sheer pixel count and shader complexity overwhelm its capabilities. Conversely, at 1080p Low, the delta between resolutions is smaller, implying the Ryzen 5 2600 is holding the system back from reaching even higher frame rates.

The data suggests a dual-bottleneck scenario. At 1080p, the CPU limits performance, preventing the GPU from stretching its legs. At 4K Ultra, the GPU is heavily taxed, and the frame rate drops accordingly. The sweet spot appears to be 1440p Medium, where the system hits 101.4 FPS, balancing the load between the six-core processor and the high-end graphics card. This resolution scaling pattern is typical for a pairing of a last-generation mid-range CPU with a current-generation high-end GPU.

FAQ

Q: What is the highest average frame rate achieved by this combo in Microsoft Flight Simulator?

A: The highest measured average is 119.2 FPS, achieved at 1920x1080 resolution with Low settings.

Q: How does the combo perform at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the average frame rate drops to 55.7 FPS, which is near the threshold for smooth gameplay but not ideal for high-refresh-rate monitors.

Q: Is there a significant performance gap between Low and Ultra settings at 1440p?

A: Yes, the difference is 30.4 FPS. At 2560x1440, Low settings yield 110.6 FPS, while Ultra settings produce 80.2 FPS.

Q: What is the combo's rank among all tested combinations for this game?

A: This specific pairing ranks 547th out of 1795 tested combos, placing it in the upper third of all configurations.

Q: Does the GPU hold up well against its direct rivals?

A: The RX 7900 XT has an average benchmark score of 38358, which is nearly identical to the NVIDIA GeForce RTX 5080 Mobile at 38349, showing a delta of 0%. It also outperforms the NVIDIA GeForce RTX 4080 Mobile by 0.6%.

Q: How does the CPU's single-threaded performance compare to its multi-threaded performance?

A: The Ryzen 5 2600 scores 1579 in Cinebench R23 single-core and 11186 in multi-core. This indicates a strong multi-threaded showing for its class, but the single-core score is more relevant for flight simulator physics and AI calculations.

How This Combo Ranks

In the database of tested combinations for Microsoft Flight Simulator, the AMD Ryzen 5 2600 and AMD Radeon RX 7900 XT pairing achieves a rank of 547 out of 1795 combos. This places it in the 70th percentile of all tested systems, meaning it outperforms roughly 70% of the configurations in the database. Given the age of the CPU, this is a strong result, primarily driven by the GPU's raw horsepower.

The rank reflects the combination's ability to handle the game's demanding rendering pipeline. While the CPU is not a top-tier performer—its average benchmark score of 19616 places it just 0.6% behind the AMD Ryzen 5 7530U and 0.7% ahead of the Intel Core i7-10700F—the GPU compensates. The RX 7900 XT's average benchmark score of 38358 is essentially tied with the NVIDIA GeForce RTX 5080 Mobile and 0.3% ahead of the NVIDIA CMP 70HX. This synergy allows the system to achieve high frame rates in most scenarios, but the 547th rank suggests that many combos with newer, faster CPUs achieve better overall stability, especially in CPU-bound scenarios like dense airports or complex weather systems.

The rank also highlights the diminishing returns of pairing a high-end GPU with a mid-range older CPU. The data shows that the combo is capable of 4K Ultra at 55.7 FPS, but it cannot reach the 60 FPS target consistently. A system with a more modern CPU might push that number higher, but for the price of the CPU alone, this combo offers a compelling middle-ground performance profile.

Measured FPS Breakdown

The measured FPS data provides a complete picture of performance across resolutions and settings. At 1920x1080, the system produces 119.2 FPS on Low, 109.7 FPS on Medium, 97.7 FPS on High, and 94.4 FPS on Ultra. The drop from Low to Ultra is 24.8 FPS, showing that even at 1080p, settings have a significant impact. The 1080p numbers are consistently above 90 FPS, making this resolution ideal for high-refresh-rate displays.

Moving to 2560x1440, the averages are 110.6 FPS on Low, 101.4 FPS on Medium, 82.7 FPS on High, and 80.2 FPS on Ultra. The gap between Medium and High is notably large at 18.7 FPS, suggesting that High settings introduce a significant increase in draw distance or shadow complexity. The 1440p results remain playable across all settings, with even Ultra staying above 80 FPS.

At 3840x2160, the system delivers 98.4 FPS on Low, 81.8 FPS on Medium, 62.9 FPS on High, and 55.7 FPS on Ultra. The 4K Low result is impressive, but the Ultra result is below the 60 FPS threshold for smooth gameplay. The scaling from Low to Ultra at 4K is a 42.7 FPS drop, which is the largest of any resolution, confirming that the GPU is the primary bottleneck at this resolution. The data shows a clear pattern: the combo is best suited for 1080p and 1440p gaming, with 4K reserved for lower settings or less demanding scenes.

GPU Role

The AMD Radeon RX 7900 XT is the dominant component in this pairing, and its specifications explain the high frame rates at lower resolutions. It features 20 GB of GDDR6 memory on a 320-bit bus, providing 800.0 GB/s of memory bandwidth. This is critical for Microsoft Flight Simulator, which streams vast amounts of terrain and texture data. The 20 GB capacity ensures that even at 4K Ultra, the GPU does not run out of memory, avoiding stutters and texture pop-in.

The GPU's clock speeds are high, with a base clock of 1387 MHz, a game clock of 2025 MHz, and a boost clock of 2394 MHz. The game clock is the relevant figure for sustained loads, and it allows the GPU to maintain high frame rates in most scenarios. The 5376 shading units and 192 ROPs provide ample pixel-pushing power, which is evident in the 98.4 FPS result at 4K Low. The GPU's passmark G3D score of 29009 and its 82nd percentile ranking among all GPUs confirm its high-end status.

The benchmark results show that the RX 7900 XT is a capable performer, but it is not without limits. At 4K Ultra, the 55.7 FPS average indicates that the GPU is fully saturated. The 3DMark Steel Nomad score of 5623 suggests that while the GPU excels at traditional rasterization, the heavy shader work in flight simulator at 4K Ultra is a challenge. The GPU's role is to provide the raw horsepower, and it does so effectively, but the CPU limits its ability to push beyond 119 FPS at 1080p.

CPU Role

The AMD Ryzen 5 2600 is a six-core, twelve-thread processor from the 2000 series, based on the Zen architecture. Its base clock is 3.40 GHz, with a boost clock of 3.90 GHz. For a game like Microsoft Flight Simulator, which relies heavily on single-threaded performance for flight physics, AI, and weather simulation, the CPU's single-core capabilities are crucial. The Cinebench R23 single-core score of 1579 is modest by modern standards, and this limits the maximum frame rate at lower resolutions.

The CPU's multi-threaded performance is stronger, with a Cinebench R23 multi-core score of 11186. The 12 threads help with background tasks and loading, but the game's primary simulation loop is not fully parallelized. This explains why the frame rates at 1080p Low (119.2 FPS) do not scale up dramatically when the GPU is not the bottleneck. The CPU's 16 MB of shared L3 cache is also relevant, as it helps with data locality for the game's streaming assets, but it is smaller than newer processors.

The Ryzen 5 2600's percentile rank of 77 among all CPUs indicates it is still a respectable performer, but its nearest rivals show how close it is to modern mobile chips. It trails the Intel Core i5-1345U by 0.4% and leads the AMD Ryzen 5 7530U by 0.6% in average benchmark score. This means the CPU is not a significant liability, but it is also not a strength. In this combo, the CPU's role is to provide adequate frame pacing and to avoid severe bottlenecks, which it does, but it cannot unlock the full potential of the RX 7900 XT.