Microsoft Flight Simulator

CPU Role — cores, clocks, and how they relate to this game's results

The Intel Core Ultra 7 155H is a 16-core, 22-thread mobile processor built on Intel's Meteor Lake architecture. It runs at a 3.80 GHz base clock and reaches 4.80 GHz boost, with a 28 W TDP that classifies it as an efficient mobile part rather than a desktop-class heavyweight. Its cache layout includes 112 KB L1 per core, 2 MB L2 per core, and 24 MB of shared L3. For a flight simulator like Microsoft Flight Simulator, which is known for heavy single-threaded simulation logic, the boost clock of 4.80 GHz is the more relevant number — and the data supports that.

The CPU's benchmark results place it in the 83rd percentile among all CPUs. In Cinebench R23, it scores 15028 multi-core and 1743 single-core. The single-core score is modest compared to desktop parts, but the multi-core result shows 16 cores doing meaningful work. In Microsoft Flight Simulator, the game's rendering thread and physics simulation can use multiple cores, but the primary bottleneck often sits in single-thread performance. At 1080p Low settings, the combo delivers 119 FPS average — a number that suggests the CPU is not holding back the GPU at lower resolutions. The fact that the CPU's PassMark single-thread score is 3468, while its multithread score is 24873, reinforces that this is a balanced mobile chip capable of feeding a mid-range GPU.

The Core Ultra 7 155H's nearest rivals in synthetic benchmarks are the Intel Core i5-14600T (avg score 32707, delta 0%), AMD Ryzen AI 7 PRO 360 (32662, +0.1%), AMD Ryzen 5 7400F (32750, -0.2%), and AMD Ryzen 7 PRO 6850H (32812, -0.4%). These deltas are tiny — within 0.5% — so the CPU's raw compute power is essentially on par with a range of desktop and mobile chips. In flight sim, this means the CPU is not an outlier; it delivers consistent, predictable performance.

The integrated Arc Xe-LPG 128EU graphics are present but irrelevant here since the system pairs with a dedicated GPU. The CPU's memory bandwidth of 89.6 GB/s via dual-channel DDR5 is sufficient for feeding the RTX 4070 Mobile's 256.0 GB/s frame buffer, though the game's asset streaming can stress memory subsystems. In practice, the measured FPS data shows the CPU scaling well with resolution changes — from 119 FPS at 1080p Low to 71 FPS at 4K Low — which indicates the CPU maintains its frame delivery even as GPU load increases.

FAQ

Q: Does the Intel Core Ultra 7 155H bottleneck the RTX 4070 Mobile in Microsoft Flight Simulator?

A: At 1080p Low, the combo hits 119 FPS average, which is near the top of the measured range. The CPU's single-core score of 1743 in Cinebench R23 and 3468 in PassMark single-thread suggests it can keep up with the GPU's output at lower resolutions. However, the 4K Ultra result of 40 FPS is more GPU-limited, as the RTX 4070 Mobile's percentile rank of 73 (vs. the CPU's 83) indicates the GPU is the weaker link at high resolutions.

Q: How does this CPU compare to its nearest rivals in synthetic benchmarks?

A: The Core Ultra 7 155H scores 32697 average benchmark points. Its closest competitor, the Intel Core i5-14600T, scores 32707 with a 0% delta. The AMD Ryzen AI 7 PRO 360 scores 32662 (+0.1%), the AMD Ryzen 5 7400F scores 32750 (-0.2%), and the AMD Ryzen 7 PRO 6850H scores 32812 (-0.4%). These differences are negligible, so the CPU's performance class is consistent with mid-range desktop and mobile parts.

Q: What is the best resolution for this combo in terms of playable FPS?

A: At 1440p High, the combo averages 56 FPS, while 1080p High averages 70 FPS. The 4K High setting drops to 42 FPS. For smooth gameplay, 1080p Medium (93 FPS) or 1440p Low (96 FPS) provide the highest frame rates without sacrificing too much visual quality. The 1440p Medium setting at 75 FPS is a strong middle ground.

Q: Does the CPU's 16-core/22-thread configuration help in this game?

A: The multi-core score of 15028 in Cinebench R23 shows the CPU can handle parallel workloads, and the game does use multiple cores for terrain streaming and AI. However, the single-core score of 1743 is more telling — flight sim's simulation thread is single-threaded, and the 4.80 GHz boost clock is what enables 119 FPS at 1080p Low. The 22 threads help with background tasks but are not the primary driver of frame rates.

Q: How does the RTX 4070 Mobile compare to its GPU rivals?

A: The RTX 4070 Mobile's average benchmark score is 27435, placing it in the 73rd percentile. Its nearest rival, the AMD Radeon RX 6700 XT, scores 27425 (0% delta). The NVIDIA GeForce RTX 3090 scores 27565 (-0.5%), the NVIDIA RTX PRO 4000 Blackwell scores 27135 (+1.1%), and the AMD Radeon Pro Vega 20 scores 27839 (-1.5%). The GPU is competitive with these parts, though the 8 GB GDDR6 memory and 128-bit bus (256.0 GB/s bandwidth) limit 4K performance.

Q: What is the combo's overall ranking among tested systems?

A: This CPU+GPU combination ranks 1978 out of 3714 tested combos in Microsoft Flight Simulator, placing it in the 53rd percentile. This is a mid-pack result, reflecting that the mobile CPU and GPU are capable but not top-tier. The rank is influenced by the GPU's 73rd percentile (vs. the CPU's 83rd), meaning the GPU is the limiting factor in this pairing.

Resolution Scaling

The measured FPS data reveals a clear pattern of how this combo scales from 1080p to 4K. At 1080p Low, the system achieves 119 FPS average. Moving to 1440p Low drops that to 96 FPS (-19%), and 4K Low falls to 71 FPS (-40% from 1080p). This scaling is typical for a GPU-bound scenario at low settings — the CPU has plenty of headroom, so the frame rate is dictated by the GPU's fill rate and memory bandwidth.

At Medium settings, the progression is 93 FPS at 1080p, 75 FPS at 1440p (-19%), and 55 FPS at 4K (-41%). The High preset shows 70 FPS at 1080p, 56 FPS at 1440p (-20%), and 42 FPS at 4K (-40%). The consistency of these percentage drops — roughly 19-20% from 1080p to 1440p and 40-41% from 1080p to 4K — indicates that the limiting component is the GPU across all settings. The CPU's contribution is stable; it is not causing disproportionate frame drops at higher resolutions.

The Ultra preset shows the steepest absolute decline: 66 FPS at 1080p, 54 FPS at 1440p (-18%), and 40 FPS at 4K (-39%). The fact that the Ultra preset at 4K (40 FPS) is only 5 FPS below the High preset at 4K (42 FPS) suggests the game's Ultra settings introduce diminishing returns in visual quality while heavily taxing the GPU. The RTX 4070 Mobile's 8 GB GDDR6 memory and 256.0 GB/s bandwidth are the primary constraints at 4K, as the GPU's 15.62 TFLOPS FP32 throughput cannot maintain high frame rates when the render resolution quadruples pixel count.

Notably, the gap between Low and Ultra at each resolution is significant: 53 FPS at 1080p (119 vs. 66), 42 FPS at 1440p (96 vs. 54), and 31 FPS at 4K (71 vs. 40). This indicates that the GPU is the dominant factor in scaling — the CPU delivers the same frame rate regardless of settings, while the GPU's workload increases with each preset. The data shows that at 1080p, the combo is CPU-bound at Low settings (119 FPS), but becomes GPU-bound at Ultra (66 FPS) as the GPU's resources are consumed by higher fidelity effects.

How This Combo Ranks

In Microsoft Flight Simulator's benchmark database, this Intel Core Ultra 7 155H + NVIDIA GeForce RTX 4070 Mobile combination ranks 1978 out of 3714 tested combos. This places the system in the 53rd percentile of all tested hardware pairs — a solid mid-pack result that reflects the mobile nature of both components. The CPU alone sits in the 83rd percentile (higher than the combo's overall rank), while the GPU sits in the 73rd percentile. The combo's rank is dragged down by the GPU, which is the weaker link in this pairing.

The gap between CPU and GPU percentiles (83 vs. 73) suggests that a more powerful GPU would boost this system's rank further. In fact, the CPU's synthetic score of 32697 is competitive with desktop parts like the Intel Core i5-14600T (32707) and AMD Ryzen 5 7400F (32750), yet the GPU's score of 27435 is closer to the AMD Radeon RX 6700 XT (27425) — a desktop mid-range card from a previous generation. The combo rank of 1978 means that over 1700 tested combos outperform this pairing, many of which likely pair high-end desktop CPUs with desktop GPUs.

For context, the combo's measured FPS at 1080p Ultra (66 FPS) is playable, but the 4K Ultra result (40 FPS) falls below the 60 FPS threshold that many players consider smooth. The rank reflects this: the system is capable of running the game at high settings in 1080p and 1440p, but it is not a top-tier performer. The 4K results (40-71 FPS depending on settings) are the weakest area, confirming that this mobile combo is best suited for 1440p gaming rather than 4K.

The data also shows that the combo's rank is consistent with its component-level percentiles. A 53rd percentile rank for a system with a 83rd percentile CPU and 73rd percentile GPU indicates that the GPU is holding back the overall performance more than the CPU. If a user were to pair this CPU with a faster GPU, the rank would improve substantially — but with the RTX 4070 Mobile, the system is firmly in the mid-range tier.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this combo depend on the target resolution and desired frame rate. At 1080p, the Medium preset delivers 93 FPS average with a minimum of 79 FPS and maximum of 107 FPS. This is the best balance of visual quality and smoothness — the frame rate stays well above 60 FPS, and the min FPS of 79 ensures no noticeable stutter. The High preset at 1080p drops to 70 FPS, which is still playable but less fluid. The Ultra preset at 66 FPS is acceptable for those who prioritize visual fidelity, but the Medium preset offers a 27 FPS advantage (93 vs. 66) with only a modest visual downgrade.

At 1440p, the Medium preset gives 75 FPS average (min 64, max 86), which is the only preset that maintains an average above 60 FPS. The High preset at 56 FPS is borderline, and the Ultra preset at 54 FPS is below the 60 FPS threshold. For 1440p gaming, Medium is the recommended setting — the min FPS of 64 means the system rarely dips below 60 FPS, providing a consistent experience. The Low preset at 96 FPS is overkill for most users, as the visual quality loss is significant for a marginal frame rate gain over Medium.

At 4K, no preset achieves an average of 60 FPS. The Low preset at 71 FPS is the only playable option, but it sacrifices most visual fidelity. The Medium preset at 55 FPS (min 47, max 63) is a compromise — the min FPS of 47 indicates occasional dips that might be noticeable. The High (42 FPS) and Ultra (40 FPS) presets are not recommended for smooth gameplay, as they fall below 45 FPS average.

The data suggests that the best overall experience is 1080p Medium or 1440p Medium, depending on the user's display resolution. For 1080p, Medium provides 93 FPS with a comfortable margin over the 60 FPS threshold. For 1440p, Medium at 75 FPS is the sweet spot. The Low presets are only necessary for 4K gaming, where the GPU's 8 GB memory and 256.0 GB/s bandwidth become limiting factors. The Ultra preset is viable only at 1080p (66 FPS), and even then, the 27 FPS drop from Medium is a steep price for the visual enhancements.

Measured FPS Breakdown

1080p (1920x1080):

• Low: 119 FPS average
• Medium: 93 FPS average (min 79, max 107)
• High: 70 FPS average
• Ultra: 66 FPS average

1440p (2560x1440):

• Low: 96 FPS average
• Medium: 75 FPS average (min 64, max 86)
• High: 56 FPS average
• Ultra: 54 FPS average

4K (3840x2160):

• Low: 71 FPS average
• Medium: 55 FPS average (min 47, max 63)
• High: 42 FPS average
• Ultra: 40 FPS average

The data shows a consistent pattern across all resolutions: the Low preset delivers the highest frame rates, followed by Medium, High, and Ultra in descending order. The gap between Low and Medium is significant at every resolution — 26 FPS at 1080p (119 vs. 93), 21 FPS at 1440p (96 vs. 75), and 16 FPS at 4K (71 vs. 55). The gap between High and Ultra is much smaller — 4 FPS at 1080p (70 vs. 66), 2 FPS at 1440p (56 vs. 54), and 2 FPS at 4K (42 vs. 40). This indicates that the Ultra preset offers minimal performance improvement over High while adding visual effects that are not worth the frame rate cost.

The min/max data is only available for Medium settings. At 1080p Medium, the range is 79-107 FPS (a 28 FPS spread), while 1440p Medium ranges 64-86 FPS (22 FPS spread), and 4K Medium ranges 47-63 FPS (16 FPS spread). The narrowing spread at higher resolutions suggests that the GPU becomes consistently saturated, reducing frame time variance. The 4K Medium min of 47 FPS is the lowest recorded value in the dataset, indicating that even the Medium preset can dip below 50 FPS at 4K in demanding scenes.

The 1080p Low result of 119 FPS is the highest measured value, and it approaches the 120 FPS threshold that high-refresh-rate displays target. The 1440p Low result of 96 FPS is also strong. The 4K Ultra result of 40 FPS is the lowest, confirming that this combo is not suited for 4K gaming at maximum settings. Overall, the measured data provides a clear picture: this system delivers excellent 1080p performance, good 1440p performance, and marginal 4K performance, with the Medium preset offering the most balanced experience at each resolution.