Microsoft Flight Simulator

The Intel Core i5-12400 paired with the AMD Radeon RX 9070 delivers a robust experience in Microsoft Flight Simulator, with performance scaling predictably across the tested resolution and settings matrix. The data set provides a clear picture of where the bottleneck shifts between the CPU and GPU as workload intensity changes, offering a definitive guide for users targeting specific frame rate thresholds.

Resolution Scaling

The measured average frame rates reveal a steep performance gradient when moving from 1080p to 4K. At 1920x1080 with High settings, the combo produces 94 fps. Stepping up to 2560x1440 drops that figure to 74.2 fps, a reduction of roughly 21%. The jump to 3840x2160 further compresses performance to 51.6 fps, representing a 45% decline from the 1080p baseline. This scaling pattern indicates that the GPU becomes the primary limiting factor as pixel count rises, which is typical for a flight simulator that renders dense terrain and complex geometry.

The gap between Low and Ultra settings widens at higher resolutions. At 1080p, the spread between Low (152.8 fps) and Ultra (84.9 fps) is 67.9 fps. At 1440p, that spread narrows to 58.8 fps (126.2 fps Low versus 67.4 fps Ultra). At 4K, the range compresses further to 43.1 fps, with Low achieving 90.9 fps and Ultra falling to 47.8 fps. This compression suggests that at 4K, the GPU’s raw throughput is saturated even at lower settings, so additional graphical detail has a smaller relative impact on frame rate than it does at 1080p where the CPU can still feed frames efficiently.

The data shows that 1440p is the sweet spot for this pairing if aiming for high refresh rates. Medium settings at 2560x1440 yield 99.1 fps, which is playable on most high-refresh displays. Pushing to 4K requires a compromise: High settings deliver 51.6 fps, while Ultra drops to 47.8 fps, both hovering near the 50 fps threshold where flight simulators remain fluid but not exceptionally smooth. The scaling from 1440p to 4K at High settings (74.2 to 51.6 fps) indicates a 30% performance hit, which is substantial but expected given the 2.25x increase in pixel count.

GPU Role

The AMD Radeon RX 9070 is the dominant component in this configuration, and its specifications align with the observed scaling behavior. The GPU features 16 GB of GDDR6 memory on a 256-bit bus, providing a bandwidth of 644.6 GB/s. This memory subsystem is critical for Microsoft Flight Simulator, which streams high-resolution textures and elevation data continuously. The 16 GB capacity ensures that even at 4K Ultra settings, the frame buffer does not become a limiting factor, allowing the measured 47.8 fps to be achieved without texture thrashing.

Clock speeds are also relevant. The GPU has a base clock of 1330 MHz and a boost clock of 2520 MHz, with a game clock of 2070 MHz. The boost behavior explains why the transition from Medium to High settings costs less performance than from High to Ultra. At 4K, Medium produces 71.3 fps, High drops to 51.6 fps, and Ultra falls to 47.8 fps. The diminishing returns at the top end suggest the GPU is hitting its thermal or power limits, operating near its 220 W TDP. The RDNA 4.0 architecture, built on a 4 nm process, delivers a FP32 throughput of 36.13 TFLOPS, which is sufficient to handle the simulator’s lighting and shadow calculations at these settings.

The GPU’s benchmark percentile of 79 places it above the majority of tested graphics cards. Its nearest rival, the NVIDIA A2, has an average score of 34866, a delta of -0.2%, indicating the RX 9070 is essentially tied with that professional-grade card in synthetic tests. However, in gaming workloads like this simulator, the RX 9070’s rasterization capabilities shine, as evidenced by the playable 4K frame rates. The 128 ROPs and 224 TMUs ensure that pixel fill and texture filtering are not bottlenecks, even at 3840x2160 where the pixel rate of 322.6 GPixel/s is put to the test.

Settings Recommendations

The measured rows provide a clear hierarchy for optimizing the experience. At 1920x1080, the Ultra preset delivers 84.9 fps, which is above the 60 fps threshold for smooth gameplay. Users with 1080p displays can safely enable Ultra without sacrificing fluidity. The High preset at 94 fps offers a small headroom increase, but the visual fidelity gains from Ultra likely justify the 9 fps cost for most users.

For 2560x1440, the decision is more nuanced. High settings produce 74.2 fps, which is comfortable for most monitors. Medium settings at 99.1 fps provide a significant boost for high-refresh panels, but the visual downgrade from High to Medium may be noticeable in cockpit instruments and distant terrain. The Ultra preset at 67.4 fps is still playable but sits close to the edge where frame pacing can become inconsistent in densely populated areas. Based on the data, High at 1440p is the recommended balance, offering 74.2 fps without pushing the GPU to its limits.

At 3840x2160, users must accept a compromise. The Ultra preset at 47.8 fps is below the ideal 60 fps target, and High at 51.6 fps is only marginally better. Medium settings at 71.3 fps provide the first playable experience above 60 fps, making it the most sensible choice for 4K displays. The step from Medium to High costs 19.7 fps, which is a 27.6% reduction, while the step from High to Ultra costs only 3.8 fps. This suggests that Medium is the sweet spot for 4K, as it retains most of the visual detail while maintaining a fluid frame rate.

How This Combo Ranks

Within the database of 1795 tested CPU-GPU combinations for Microsoft Flight Simulator, this pairing holds rank 570. This places it in the top third of all configurations, a commendable position given that the CPU is a mid-range six-core part and the GPU is a current-generation enthusiast card. The rank reflects the balanced nature of the pairing, where neither component is severely underpowered for the other’s capabilities.

The CPU’s percentile of 77 against all processors indicates it outperforms the majority of CPUs in the database, while the GPU’s percentile of 79 shows similar standing among graphics cards. When combined, these two components achieve a rank that is slightly lower than their individual percentiles might suggest, implying that the game’s engine is not perfectly scaling with the available hardware resources. The rank of 570 out of 1795 means that 1225 other combinations deliver higher average frame rates, but many of those likely feature higher-end CPUs or dual-GPU setups that are impractical for most users.

The CPU’s nearest rivals in synthetic benchmarks include the Intel Core i7-9700 with a delta of 0.1%, meaning the i5-12400 is essentially equivalent in raw processing power. The Core i5-11600K is 0.4% behind, and the Core i7-8700 is 0.2% ahead. This tight grouping indicates that the i5-12400 is at the performance ceiling for its price segment, and any gains in this game would require a significant CPU upgrade. The GPU’s nearest rival, the NVIDIA A2, has a delta of -0.2%, showing the RX 9070 is marginally ahead in average benchmark scores, though the A2 is a compute-focused card not intended for gaming.

CPU Role

The Intel Core i5-12400 provides six cores and twelve threads, with a base clock of 2.50 GHz and a boost clock of 4.40 GHz. Its Alder Lake architecture, built on a 10 nm process, includes 18 MB of shared L3 cache. These specifications are adequate for Microsoft Flight Simulator, which is known to favor single-thread performance for its core simulation loop. The CPU’s single-thread benchmark score of 910 in 3dmark and 3456 in Passmark confirms it has strong per-core performance, which directly translates to the simulator’s frame generation.

The CPU’s multi-threaded capabilities are less critical for this game, as the simulator does not scale linearly with core count beyond six cores. The 3dmark_max_threads score of 5890 and Cinebench R23 multi-core score of 15935 indicate solid parallel performance, but the game’s engine tends to bottleneck on the primary simulation thread. This explains why the i5-12400, with a boost clock of 4.40 GHz, is able to keep pace with the RX 9070 at 1080p where the GPU is less stressed. At 1080p Low settings, the combo hits 152.8 fps, suggesting the CPU can feed frames well beyond the GPU’s ability to render them at higher settings.

The CPU’s 65 W TDP is modest, which means it does not throttle under sustained load, ensuring consistent frame rates in long play sessions. The L3 cache of 18 MB is sufficient to hold the simulator’s frequently accessed terrain data, reducing memory latency penalties. In synthetic comparisons, the i5-12400 is nearly identical to the Core i7-9700 (0.1% delta), meaning any performance differences in-game would be negligible. This CPU, while not a flagship, is well-matched to the RX 9070, as evidenced by the measured frame rates across all resolutions and settings. The data confirms that the CPU is not a bottleneck until the GPU is pushed to its limits at 4K Ultra, where the 47.8 fps result is limited by the graphics card, not the processor.