Microsoft Flight Simulator

# Microsoft Flight Simulator — AMD Ryzen 9 8945HX + NVIDIA GeForce RTX 5070 Ti

The measured frame rates for this mobile flagship pairing reveal a system that scales predictably across resolutions but shows clear signs of GPU-bound behavior at higher settings, with the RTX 5070 Ti's 16 GB frame buffer and 896.0 GB/s bandwidth playing a decisive role in how Microsoft Flight Simulator behaves from 1080p through 4K. The AMD Ryzen 9 8945HX, a 16-core Zen 4 Dragon Range part with a 5.40 GHz boost clock, provides ample headroom that becomes more evident as resolution drops and frame rates climb.

Resolution Scaling

The data shows a consistent frame rate decline as resolution increases, but the magnitude of that decline varies significantly by settings preset. At Low settings, the average FPS drops from 138 at 1920x1080 to 112 at 2560x1440 and 82 at 3840x2160 — a total reduction of 56 FPS (40.6%) from 1080p to 4K. This relatively modest scaling curve suggests that at Low settings, the CPU is doing more of the heavy lifting, and the GPU's 43.94 TFLOPS of FP32 throughput is sufficient to keep pace even at 4K.

The picture changes dramatically at Ultra settings. Here, the average FPS falls from 77 at 1920x1080 to 62 at 2560x1440 and 46 at 3840x2160 — a drop of 31 FPS (40.3%) across the same resolution span, but with a much steeper per-step decline. The 4K Ultra result of 46 FPS is barely above the 48 FPS achieved at 4K High, indicating that the RTX 5070 Ti is approaching its practical ceiling for this simulator's most demanding visual configuration.

Medium settings show the most linear scaling: 108 FPS at 1080p, 87 FPS at 1440p, and 64 FPS at 4K. The min-to-max FPS range for Medium (92-124 at 1080p, 74-100 at 1440p, 54-74 at 4K) widens as resolution increases, suggesting that frame pacing becomes less consistent when the GPU is under heavier load. High settings follow a similar pattern, with 81 FPS at 1080p, 65 FPS at 1440p, and 48 FPS at 4K.

The limiting component is clearly the GPU at 4K Ultra and High, where the 16 GB of GDDR7 memory and 256-bit bus are being pushed hard. At 1080p Low, the 138 FPS result — the highest measured in this dataset — hints that the Ryzen 9 8945HX's 32 threads and 64 MB of L3 cache are capable of feeding the GPU far faster than the simulator demands at lower resolutions.

CPU Role

The Ryzen 9 8945HX brings substantial processing power to this pairing, with 16 cores and 32 threads running at a 2.50 GHz base clock and 5.40 GHz boost. Its Cinebench R23 scores of 42,713 multi-core and 6,030 single-core place it in the 95th percentile of all CPUs, and its average benchmark score of 76,212 sits just 0.1% above the Intel Core Ultra 9 285HX (76,155) and 0.6% above the AMD Ryzen 9 9950X3D (75,779).

In Microsoft Flight Simulator, the CPU's role is most apparent in the Low settings results. The 138 FPS at 1080p Low represents a scenario where the simulator's draw calls and world-simulation logic are primarily CPU-bound, and the 8945HX's Zen 4 architecture delivers the headroom needed to push past 130 FPS. The fact that this drops only to 112 FPS at 1440p Low and 82 FPS at 4K Low indicates that even at 4K, the CPU is not the bottleneck at the lowest preset — the GPU's raw fill rate is still sufficient to keep up with the CPU's output.

The Radeon 610M integrated graphics on this CPU are irrelevant for gaming performance when the discrete RTX 5070 Ti is active, but the CPU's PCIe Gen 5, 28 lanes interface ensures adequate bandwidth to the GPU for high-texture workloads. The 83.2 GB/s memory bandwidth from dual-channel DDR5 support is another factor that helps feed the simulator's streaming world data without causing frame hitches.

The nearest rival comparisons show that the 8945HX is essentially neck-and-neck with the Core Ultra 9 285HX and Ryzen 9 9950X3D in overall CPU benchmarks, but the measured FPS data in this game suggests that the 16-core design with 64 MB L3 cache is well-suited to Flight Simulator's multi-threaded terrain and weather processing. The 5.40 GHz boost clock provides strong single-thread performance for the simulator's main rendering thread, which is often the limiting factor in CPU-bound scenarios.

GPU Role

The RTX 5070 Ti is a Blackwell 2.0 architecture part with 8,960 shading units, 280 TMUs, and 96 ROPs, running at a 2,295 MHz base and 2,452 MHz boost clock. Its 16 GB of GDDR7 memory on a 256-bit bus delivers 896.0 GB/s of bandwidth — a figure that becomes critical at 4K Ultra, where the simulator's high-resolution textures and dense scenery can easily consume more than 12 GB of VRAM.

The GPU's 43.94 TFLOPS of FP32 compute and 686.6 GTexel/s texture rate are put to the test most severely at 4K Ultra, where the average FPS falls to 46 — just below the 48 FPS at 4K High. This narrow gap between High and Ultra at 4K suggests that the RTX 5070 Ti's shading units and ROPs are saturated, and the extra visual fidelity from Ultra settings cannot be fully utilized without dropping below 50 FPS.

At 1080p, the GPU has more headroom. The 138 FPS at Low and 108 FPS at Medium show that the RTX 5070 Ti can easily handle this simulator at mainstream resolutions, with the 16 GB frame buffer providing ample space for even the most texture-heavy add-on scenery. The 77 FPS at 1080p Ultra is a more realistic indicator of the GPU's ceiling when fully stressed, and it aligns with the 4K High result of 48 FPS — roughly half the frame rate at double the pixels in each dimension.

The GPU's passmark G3D score of 32,974 places it in the 86th percentile of all GPUs, with its average benchmark score of 49,957 sitting just 0.1% below the AMD Radeon RX Vega 64 (50,001) and 0.4% above the Intel Arc A550M (49,737). The nearest rival comparisons show the RTX 5070 Ti trailing the RX 6900 XT by 2% and leading the RX 6800 XT by 3.1%, though these synthetic benchmarks don't capture the memory bandwidth advantages that matter in Flight Simulator's streaming-heavy workloads.

How This Combo Ranks

The combination of the Ryzen 9 8945HX and RTX 5070 Ti ranks 1,074th out of 2,996 tested combos in Microsoft Flight Simulator, placing it in the top 35.8% of all systems evaluated. This ranking is notable given the hardware's specifications — the CPU is in the 95th percentile and the GPU in the 86th percentile, yet the combo's in-game rank is lower than either component's individual percentile would suggest.

This discrepancy indicates that Microsoft Flight Simulator's performance is not purely a function of raw component power. The simulator's unique rendering pipeline, which heavily emphasizes CPU-side terrain generation and GPU-side texture streaming, means that even a top-tier mobile CPU and high-end desktop-class GPU can be held back by other system factors. The measured FPS at 4K Ultra (46 FPS) and 4K High (48 FPS) are respectable but not class-leading, and the combo's rank reflects that this pairing delivers solid but not exceptional performance in this specific title.

The rank of 1,074 out of 2,996 also suggests that many other hardware combinations — potentially including older desktop platforms with higher sustained clock speeds or larger L3 caches — achieve better results in this simulator. The 8945HX's 55W TDP and mobile form factor may contribute to thermal throttling under prolonged load, though the measured data does not include temperature information.

Settings Recommendations

Based on the measured frame rates, the Medium preset offers the best balance between visual quality and performance across all three resolutions. At 1920x1080, Medium delivers 108 FPS average with a min-max range of 92-124 FPS, providing smooth gameplay well above the 60 FPS threshold. At 2560x1440, Medium achieves 87 FPS with a 74-100 FPS range, which remains comfortably playable on high-refresh-rate displays. At 3840x2160, Medium produces 64 FPS with a 54-74 FPS range — the only preset at 4K that maintains an average above 60 FPS.

For users prioritizing maximum visual fidelity, High settings are viable at 1080p (81 FPS) and 1440p (65 FPS), but at 4K the 48 FPS average may be too low for smooth flight over dense scenery. Ultra settings are only recommended at 1080p (77 FPS), as the 1440p result of 62 FPS and 4K result of 46 FPS fall below the 60 FPS threshold that most Flight Simulator enthusiasts consider the minimum for an immersive experience.

Low settings are unnecessary for this hardware at 1080p (138 FPS) and 1440p (112 FPS), but the 82 FPS at 4K Low shows that even the lowest preset can deliver playable frame rates at 4K if visual quality is sacrificed. Given the data, Medium at 4K provides the best overall experience, with 64 FPS average and the tightest min-max range among playable presets.

FAQ

Q: Can this system run Microsoft Flight Simulator at 4K Ultra smoothly?

A: No. The measured average FPS at 4K Ultra is 46, which falls below the 60 FPS threshold for smooth gameplay. At 4K Medium, the average rises to 64 FPS with a 54-74 FPS range, making Medium the highest playable preset at 4K.

Q: What is the best resolution for this combo?

A: At 1440p, the system delivers 87 FPS on Medium and 65 FPS on High, offering a strong balance of visual quality and performance. The 1440p Medium result of 87 FPS with a 74-100 FPS range is particularly well-suited for high-refresh-rate monitors.

Q: How does the Ryzen 9 8945HX compare to its closest CPU rivals?

A: The 8945HX's average benchmark score of 76,212 is 0.1% above the Intel Core Ultra 9 285HX (76,155), 0.6% above the AMD Ryzen 9 9950X3D (75,779), and 0.4% below the AMD EPYC Embedded 8224P (76,492). These differences are negligible in real-world gaming.

Q: Does the RTX 5070 Ti's 16 GB VRAM matter for this game?

A: Yes. At 4K High and Ultra, the GPU's memory bandwidth of 896.0 GB/s and 16 GB capacity are likely being utilized heavily, as indicated by the 48 FPS and 46 FPS results respectively. The 256-bit bus provides sufficient bandwidth for high-resolution textures.

Q: Is the CPU or GPU the bottleneck in this game?

A: At 1080p Low, the 138 FPS result suggests the CPU is keeping pace well. At 4K Ultra, the 46 FPS result indicates the GPU is the limiting factor. The transition point appears to be around 1440p Medium, where both components are balanced.

Q: What rank does this combo achieve among tested systems?

A: The combo ranks 1,074th out of 2,996 tested combinations in Microsoft Flight Simulator, placing it in the top 35.8% of all systems. This is lower than the individual component percentiles (CPU 95th, GPU 86th) suggest.

Measured FPS Breakdown

1920x1080:

• Low: 138 FPS average
• Medium: 108 FPS average (min 92, max 124)
• High: 81 FPS average
• Ultra: 77 FPS average

2560x1440:

• Low: 112 FPS average
• Medium: 87 FPS average (min 74, max 100)
• High: 65 FPS average
• Ultra: 62 FPS average

3840x2160:

• Low: 82 FPS average
• Medium: 64 FPS average (min 54, max 74)
• High: 48 FPS average
• Ultra: 46 FPS average

The data reveals a clear pattern: the gap between Low and Ultra settings widens as resolution increases. At 1080p, the difference is 61 FPS (138 vs 77), at 1440p it is 50 FPS (112 vs 62), and at 4K it is 36 FPS (82 vs 46). This narrowing gap at higher resolutions confirms that the GPU becomes the dominant bottleneck as pixel count increases, regardless of the CPU's capabilities. The Medium preset consistently offers the best min-to-max consistency, with the 4K Medium range of 54-74 FPS being the most stable of any 4K configuration.