Microsoft Flight Simulator

Resolution Scaling

The FPS curve from 1080p to 4K reveals a system that remains firmly GPU-bound at every setting tier, with the scaling pattern showing the RTX 5080's headroom being progressively consumed as pixel count rises. At Low settings, the drop from 1080p to 1440p is 46.9 FPS (226 to 179.1), a 20.8% reduction, while the further step to 4K costs another 46.3 FPS (179.1 to 132.8), a 25.9% reduction. This nearly linear scaling at Low settings indicates the CPU is comfortably feeding the GPU even at 1080p, where the frame rate is already high enough to expose any processor limitation — the fact that it does not suggests the i7-13700K's 16 cores and 24 threads are more than sufficient for this flight simulator's workload.

At Medium settings, the scaling tightens considerably. The 1080p to 1440p transition drops from 175.1 to 139.5 FPS (20.3% loss), while the 1440p to 4K step falls from 139.5 to 99.7 FPS (28.5% loss). The larger percentage loss at the higher resolution step is the classic signature of a GPU that is becoming the sole bottleneck — as resolution rises, the shader and memory bandwidth demands grow faster than the CPU workload, making the RTX 5080's 960.0 GB/s of GDDR7 bandwidth the determining factor.

High settings show a steeper overall decline: 130.1 FPS at 1080p, 106.4 at 1440p (18.2% loss), and 76.6 at 4K (28.0% loss from 1440p). The 4K figure of 76.6 FPS is still comfortably playable, but the gap between 1440p and 4K has grown to over a quarter of the 1440p performance, confirming that the GPU's 16 GB VRAM and 256-bit bus are being pushed hard. Ultra settings follow the same pattern, with 121.4 FPS at 1080p, 101.8 at 1440p (16.1% loss), and 74.6 at 4K (26.7% loss from 1440p).

The most telling observation is the compression of the resolution scaling at higher settings. At Low, 4K achieves 58.8% of 1080p performance (132.8 vs 226). At Ultra, 4K achieves 61.4% of 1080p (74.6 vs 121.4). This narrowing suggests that at Ultra, the GPU is already so loaded at 1080p that additional resolution has proportionally less impact — the workload is dominated by the fixed cost of rendering the scene at maximum quality, not by pixel count. Across all settings, the data shows no evidence of CPU limiting: even the most demanding combination (4K Ultra at 74.6 FPS) is well above any threshold where a 16-core processor would struggle.

Settings Recommendations

The measured data argues strongly for High settings as the optimal balance, particularly for 4K display users. At 3840x2160, High delivers 76.6 FPS, which is only 2.0 FPS (2.7%) behind Ultra's 74.6 FPS — wait, that is incorrect: High is actually ahead of Ultra by 2.0 FPS. This counterintuitive result — High outperforming Ultra — is not a measurement error but reflects the fact that Ultra settings introduce additional computational load that the RTX 5080 cannot fully amortize at 4K, while High keeps the GPU within a more efficient operating envelope.

For 1440p users, High at 106.4 FPS is the clear sweet spot, offering 4.6 FPS more than Ultra (101.8) while presumably reducing visual complexity. The gap between Medium (139.5) and High (106.4) is 33.1 FPS, which is a substantial visual quality trade-off for 1440p users who prioritize frame rate. At 1080p, the choice depends on refresh rate: High at 130.1 FPS is sufficient for 120 Hz displays, while Medium at 175.1 FPS suits 165 Hz panels, and Low at 226 FPS targets 240 Hz monitors.

The data suggests that Low settings are only worthwhile for competitive or recording scenarios where maximum frame rate is paramount. At 4K Low, the 132.8 FPS result is 56.2 FPS higher than High (76.6), but the visual degradation in a flight simulator — where cockpit readability and terrain detail matter — makes this a poor trade for most users. Medium at 4K (99.7 FPS) is a viable alternative for those who want higher frame rates than High provides without dropping to Low, but the 23.1 FPS gap between Medium and High at 4K is smaller than the 32.7 FPS gap at 1440p, suggesting High becomes relatively more attractive at higher resolutions.

How This Combo Ranks

This specific pairing of the Intel Core i7-13700K with the NVIDIA GeForce RTX 5080 ranks 46th out of 1795 tested combinations in Microsoft Flight Simulator, placing it in the top 2.6% of all combos in the database. This is a strong result for a flight simulator, a genre that typically stresses CPU single-thread performance heavily due to complex flight model calculations and terrain streaming.

The ranking is particularly notable given the CPU's benchmark profile. The i7-13700K scores 12,412 in 3DMark max threads and 11,36 in single-thread (3DMark), with a Cinebench R23 multi-core score of 39,000 and single-core of 5,505. The GPU's PassMark G3D score of 36,565 contributes to a combo that is well-matched — neither component is dramatically outpacing the other in a way that would create a bottleneck in this specific title.

The combo's 46th place out of 1795 means there are 45 configurations that achieve higher FPS in this game, but the vast majority of those likely pair even higher-end GPUs (such as the RTX 5090-class) with similarly strong CPUs. The i7-13700K's 93rd percentile ranking among all CPUs and the RTX 5080's 89th percentile among all GPUs indicate that both components are near the top of their respective performance distributions, and their combination places in the upper echelon of tested systems.

Measured FPS Breakdown

At 1920x1080, the data shows a clear progression: Low settings produce 226.0 FPS, Medium drops to 175.1 (a 50.9 FPS loss), High reduces further to 130.1 (a 45.0 FPS loss from Medium), and Ultra bottoms out at 121.4 (an 8.7 FPS loss from High). The relatively small gap between High and Ultra at 1080p (8.7 FPS) suggests that Ultra's additional effects are nearly free at this resolution, where the GPU has ample headroom.

Moving to 2560x1440, the pattern shifts: Low yields 179.1 FPS, Medium 139.5 (a 39.6 FPS loss), High 106.4 (a 33.1 FPS loss), and Ultra 101.8 (a 4.6 FPS loss from High). The gap between High and Ultra has narrowed to just 4.6 FPS at 1440p, indicating that the GPU is beginning to feel the resolution increase, but still has enough resources to render Ultra without a significant penalty.

At 3840x2160, the full impact of 4K is visible: Low produces 132.8 FPS, Medium 99.7 (a 33.1 FPS loss), High 76.6 (a 23.1 FPS loss), and Ultra 74.6 (a 2.0 FPS loss from High). The High-to-Ultra gap has shrunk to just 2.0 FPS at 4K, which is within measurement noise — effectively, High and Ultra are identical in performance at this resolution, making High the obvious choice for 4K users.

Across all resolutions, the pattern is consistent: Low-to-Medium is the largest performance step (average 44.9 FPS loss), Medium-to-High is the second largest (average 30.4 FPS loss), and High-to-Ultra is the smallest (average 5.1 FPS loss). This suggests that the Ultra preset's additional features are relatively inexpensive, and the real performance cost comes from the first two quality tiers.

FAQ

Q: What is the best resolution for this combo in Microsoft Flight Simulator?

A: At High settings, 1440p delivers 106.4 FPS versus 130.1 at 1080p and 76.6 at 4K. The 1440p figure offers a strong balance, but 4K High at 76.6 FPS is also viable for users prioritizing visual fidelity.

Q: How much performance is lost going from 1080p to 4K at Ultra settings?

A: The drop is from 121.4 FPS at 1920x1080 to 74.6 FPS at 3840x2160, a 46.8 FPS reduction (38.5% loss). This confirms the GPU is the limiting factor at 4K.

Q: Is the Ultra preset worth using over High?

A: At 1080p, Ultra is 8.7 FPS slower than High (121.4 vs 130.1). At 1440p, the gap narrows to 4.6 FPS (101.8 vs 106.4). At 4K, the difference is only 2.0 FPS (74.6 vs 76.6). The performance cost of Ultra is minimal, but High provides the same or better frame rates.

Q: Does this combo bottleneck at any resolution?

A: The scaling pattern shows no significant CPU limitation. Even at 1080p Low (226 FPS), the frame rate scales consistently with resolution changes, indicating the i7-13700K with 16 cores and 24 threads is sufficient.

Q: What frame rate can I expect at 4K Medium settings?

A: The measured average is 99.7 FPS, which is 23.1 FPS higher than High (76.6) and 25.1 FPS higher than Ultra (74.6) at the same resolution.

Q: How does this combo rank among all tested configurations?

A: It ranks 46th out of 1,795 tested combos in Microsoft Flight Simulator, placing it in the top 2.6% of all systems in the database.

CPU Role

The Intel Core i7-13700K brings 16 cores and 24 threads from the Raptor Lake architecture, running at a 3.40 GHz base clock and boosting to 5.40 GHz. This configuration is well-suited to a flight simulator that must handle terrain streaming, weather simulation, and AI traffic concurrently with rendering tasks. The 30 MB of shared L3 cache and 2 MB L2 cache per core provide substantial on-die storage for the frequently accessed flight model data.

Benchmark results indicate the CPU's strength is in multi-threaded workloads: Cinebench R23 multi-core scores 39,000 while single-core scores 5,505, a ratio that shows scalability. The 3DMark results tell a similar story, with 16-thread performance at 10,717 versus 1,136 for single-thread. This scaling is relevant because flight simulators often have a primary simulation thread that limits performance, but the measured FPS data shows no such limitation here — the i7-13700K's single-core throughput is clearly adequate for this title.

The CPU's 93rd percentile ranking among all CPUs (with an average benchmark score of 47,282) places it above the vast majority of processors. Its nearest rivals include the Intel Core i7-13700KF (0.1% faster), AMD EPYC 4364P (0.3% slower), Intel Core i9-12900F (0.4% slower), and AMD Ryzen 9 PRO 5945 (0.5% slower). This clustering shows that the i7-13700K is firmly in the top tier of CPU performance, and its role in this combo is to provide a stable, high-frequency foundation that never holds back the GPU.

GPU Role

The NVIDIA GeForce RTX 5080 is the dominant component in this pairing, with 16 GB of GDDR7 memory on a 256-bit bus delivering 960.0 GB/s of bandwidth. The GPU's boost clock of 2617 MHz (base 2295 MHz) drives 10,752 shading units, 336 TMUs, and 112 ROPs, producing 56.28 TFLOPS of FP32 throughput. This hardware configuration is directly reflected in the measured FPS data.

The GPU's PassMark G3D score of 36,565 and its 89th percentile ranking among all GPUs (average benchmark score 59,188) place it in the upper tier, though its nearest rivals are surprising: the Intel Arc A570M is 1.6% slower, the Intel Arc Pro A60 is 1.9% faster, the Intel Arc A580 is 2.5% slower, and the AMD Radeon Pro W5500X is 2.6% slower. This clustering suggests that the RTX 5080's benchmark scores are competitive but not dominant — yet in this specific game, the measured FPS at 4K Ultra (74.6) demonstrates that its real-world performance is strong.

The 16 GB VRAM capacity is a critical factor for Microsoft Flight Simulator at 4K, where high-resolution terrain textures and detailed aircraft models consume significant memory. The 960.0 GB/s bandwidth ensures that texture streaming to the GPU does not become a bottleneck, which is evident from the smooth scaling between settings at each resolution. The GPU's 84 RT cores and 336 tensor cores support the DirectX 12 Ultimate feature set, though flight simulation typically does not heavily utilize ray tracing — the raw rasterization performance is what drives the measured results here.