Microsoft Flight Simulator

# How This Combo Ranks

The Intel Core Ultra 5 135H paired with the NVIDIA GeForce RTX 4070 lands at rank 1564 out of 2996 tested combinations in Microsoft Flight Simulator. This places it in the 48th percentile of all combos tested, meaning roughly half of the tested systems perform better and half perform worse. For a mobile CPU paired with a desktop-class GPU, this mid-pack ranking is notable—it suggests the combination is neither a top-tier enthusiast setup nor a budget compromise, but rather a balanced middle-ground performer.

The CPU's own percentile ranking versus all processors sits at 81, with an average benchmark score of 29093. Its nearest rival, the AMD Ryzen 7 5800X, scores 29123, a delta of just -0.1%, meaning these two processors are effectively tied in raw compute performance. Interestingly, the Intel Core i5-13500HX scores 29270, putting it 0.6% ahead, while the AMD Ryzen 5 5600XT trails by 0.5% at 28940. This clustering of scores within 1% suggests that the Ultra 5 135H is right in the sweet spot of mid-range desktop processors from the previous generation.

The GPU, meanwhile, holds an 81st percentile ranking among all graphics cards with an average benchmark score of 37648. Its nearest rival, the NVIDIA Tesla P4, scores 37628 (0.1% behind), while the AMD Radeon RX Vega 56 scores 37507 (0.4% behind). The RTX 4080 Mobile sits 1.3% ahead at 38135. This tight grouping around the 37,500-38,000 mark indicates the RTX 4070 is performing exactly as expected for its class.

What does the rank of 1564 out of 2996 tell us? It suggests that in Microsoft Flight Simulator specifically, this combo underperforms relative to what the individual component rankings might predict. Both parts are in the 81st percentile individually, yet the combo lands near the median. This implies that Flight Simulator's unique demands—heavy CPU simulation logic combined with GPU-intensive rendering—create a bottleneck that neither component can fully overcome alone.

GPU Role

The NVIDIA GeForce RTX 4070 brings 12 GB of GDDR6X memory on a 192-bit bus, delivering 504.2 GB/s of bandwidth. Its base clock runs at 1920 MHz with a boost to 2475 MHz, and memory operates at 1313 MHz (21 Gbps effective). The card features 5888 shading units, 184 TMUs, 64 ROPs, 46 ray tracing cores, and 184 tensor cores, with a pixel rate of 158.4 GPixel/s and texture rate of 455.4 GTexel/s. FP32 performance is rated at 29.15 TFLOPS.

In Microsoft Flight Simulator, the GPU's role is heavily tied to resolution and settings. The measured data shows a clear pattern: at 4K Ultra, the combo manages only 40 FPS average, while at 4K Low it jumps to 71 FPS—a 77.5% improvement. This dramatic swing indicates that the GPU is the primary constraint at higher settings, as the simulation's draw calls, terrain tessellation, and volumetric cloud rendering all scale with GPU load.

The 12 GB VRAM capacity is worth examining. Flight Simulator is known for streaming massive amounts of terrain and photogrammetry data, and at 4K Ultra settings, the memory footprint can become substantial. The measured 40 FPS at 4K Ultra suggests the GPU is both compute-bound and potentially memory-bandwidth-limited, given that the 504.2 GB/s bandwidth is moderate for a 4K workload. At 1080p Low, the 119 FPS result shows the GPU has headroom when the load is reduced, but the simulation's CPU overhead prevents higher frame rates.

The RTX 4070's ray tracing capabilities (46 RT cores) are present but not heavily utilized in Flight Simulator, which primarily uses traditional rasterization. The tensor cores are likewise underutilized, as the game's DLSS support was not directly measured in this data. The GPU's 200 W TDP and dual-slot design suggest it's a desktop card, but the measured FPS numbers indicate it behaves as expected for its class.

Settings Recommendations

The measured FPS data reveals a clear tiering of playable settings. At 1080p, the Low preset delivers 119 FPS average, Medium hits 93 FPS (with min/max of 79/107), High reaches 70 FPS, and Ultra drops to 66 FPS. For smooth gameplay on a standard 60 Hz monitor, 1080p High at 70 FPS is perfectly playable, while Ultra at 66 FPS sacrifices only 4 FPS for maximum visual fidelity. The Medium preset's min FPS of 79 ensures no major dips below 60.

At 1440p, the picture shifts: Low runs at 96 FPS, Medium at 75 FPS (min/max 64/86), High at 56 FPS, and Ultra at 54 FPS. Here, the Medium preset is the sweet spot—75 FPS average with a 64 FPS minimum keeps gameplay fluid. High at 56 FPS is borderline for 60 Hz displays, while Ultra at 54 FPS will show occasional stutter on demanding scenes.

At 4K, the choices narrow considerably. Low delivers 71 FPS, Medium 55 FPS (min/max 47/63), High 42 FPS, and Ultra 40 FPS. For 4K gaming, only the Low preset maintains a consistently playable frame rate above 60 FPS. Medium dips to 47 FPS minimum, which may be acceptable for a flight simulator where precision matters more than twitch response, but High and Ultra fall below 45 FPS.

The data suggests that for the best balance of visual quality and playability, 1440p Medium is the optimal choice. It delivers 75 FPS average with a 64 FPS floor, providing headroom for the complex scenes Flight Simulator often presents. At 1080p, High at 70 FPS is a solid alternative, and 4K is only viable at Low settings. The 4K Ultra figure of 40 FPS, while low, is still technically playable for a non-competitive simulation.

Measured FPS Breakdown

1080p Resolution:

• Low: 119 FPS average
• Medium: 93 FPS average, 79 FPS minimum, 107 FPS maximum
• High: 70 FPS average
• Ultra: 66 FPS average

1440p Resolution:

• Low: 96 FPS average
• Medium: 75 FPS average, 64 FPS minimum, 86 FPS maximum
• High: 56 FPS average
• Ultra: 54 FPS average

4K Resolution:

• Low: 71 FPS average
• Medium: 55 FPS average, 47 FPS minimum, 63 FPS maximum
• High: 42 FPS average
• Ultra: 40 FPS average

The progression from 1080p Low to 4K Ultra shows a massive range—from 119 FPS down to 40 FPS, a 66.4% drop. The step from Low to Medium at each resolution is substantial: 1080p drops 21.8%, 1440p drops 21.9%, and 4K drops 22.5%. This consistency suggests the Medium preset adds a similar relative load across resolutions.

The jump from Medium to High is also notable: 1080p drops 24.7%, 1440p drops 25.3%, and 4K drops 23.6%. The High to Ultra transition is smaller: 1080p drops 5.7%, 1440p drops 3.6%, and 4K drops 4.8%. This indicates that the Ultra preset offers diminishing returns compared to High, with only modest FPS penalties.

The min/max data for Medium settings shows that at 1080p, the frame time variance is relatively tight (79-107 FPS), while at 1440p it widens slightly (64-86 FPS), and at 4K it becomes more pronounced (47-63 FPS). This variance pattern suggests that at higher resolutions, the GPU's frame pacing becomes less consistent, likely due to more complex scene geometry and texture streaming demands.

FAQ

Q: Is this combo capable of 60 FPS at 1440p in Microsoft Flight Simulator?

A: Yes, but only at Medium settings (75 FPS average) or Low (96 FPS). High settings drop to 56 FPS, and Ultra to 54 FPS, both below the 60 FPS threshold.

Q: What is the best 4K experience this combo can deliver?

A: The Low preset at 4K delivers 71 FPS average, which is the only 4K setting that maintains a consistently smooth frame rate. Medium dips to 47 FPS minimum, and High/Ultra fall to 42 FPS and 40 FPS respectively.

Q: How does the GPU compare to its nearest rivals in raw benchmark scores?

A: The RTX 4070 scores 37648 in average benchmark, nearly identical to the NVIDIA Tesla P4 (37628, 0.1% difference) and the AMD Radeon RX Vega 56 (37507, 0.4% behind). The RTX 4080 Mobile leads this group at 38135, 1.3% ahead.

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

A: The Ultra 5 135H scores 1700 in Cinebench R23 single-core and 11875.5 in multi-core, a ratio of 1:6.99. Its PassMark single-thread score is 3521, while multithread is 22422, a ratio of 1:6.37.

Q: What is the FPS difference between 1080p Ultra and 4K Ultra?

A: 1080p Ultra averages 66 FPS, while 4K Ultra averages 40 FPS—a 39.4% reduction. The 4K resolution imposes a significant rendering load that the RTX 4070 cannot fully overcome at maximum settings.

Q: At which resolution and settings does the combo hit its highest average FPS?

A: The highest measured average is 119 FPS at 1080p Low settings. The next best is 96 FPS at 1440p Low, showing that the GPU scales well when settings are minimized.

CPU Role

The Intel Core Ultra 5 135H is a 14-core, 18-thread mobile processor based on the Meteor Lake architecture, built on Intel's 7 nm process. It features a base clock of 3.60 GHz and boost clock of 4.60 GHz, with a 28 W TDP. The cache hierarchy includes 112 KB L1 per core, 2 MB L2 per core, and 18 MB shared L3. Memory support includes DDR5 with dual-channel configuration and 89.6 GB/s bandwidth.

In benchmark terms, the CPU scores 11875.5 in Cinebench R23 multi-core and 1700 in single-core, placing it in the 81st percentile of all CPUs. Its PassMark multithread score of 22422 and single-thread score of 3521 reinforce this position. The nearest rival, AMD Ryzen 7 5800X, scores nearly identically at 29123 average (0.1% difference), indicating the Ultra 5 135H holds its own against a previous-generation desktop flagship.

In Microsoft Flight Simulator, the CPU's role is twofold: it handles the flight model physics, AI traffic, and weather simulation, while also managing draw call submission to the GPU. The measured FPS data shows that at 1080p Low, the combo hits 119 FPS, which is likely near the CPU's practical limit for this game's simulation thread. The fact that 1080p Ultra only drops to 66 FPS—a 44.5% reduction—suggests that the GPU becomes the limiting factor at higher settings, but the CPU still has headroom.

The 14 cores and 18 threads are well-suited for Flight Simulator's multi-threaded architecture, which can utilize multiple cores for different subsystems. The 4.60 GHz boost clock provides adequate single-thread performance for the main simulation loop. The 18 MB L3 cache helps with the large working set of terrain and aircraft data, though the 89.6 GB/s memory bandwidth may be a constraint when loading new scenery.

The CPU's 28 W TDP indicates it's designed for thin-and-light laptops, yet its performance rivals desktop chips. This efficiency comes from the 7 nm Meteor Lake architecture, which balances power draw with compute capability. The integrated Arc Xe-LPG 96EU graphics are present but not relevant for this discrete GPU configuration.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals important insights about the system's bottleneck characteristics. At Low settings, 1080p yields 119 FPS, 1440p yields 96 FPS (19.3% drop), and 4K yields 71 FPS (40.3% drop from 1080p). This scaling pattern shows that even at Low settings, the GPU is being progressively more stressed as resolution increases, though the 1080p to 1440p drop is relatively modest.

At Medium settings, the pattern is similar: 1080p at 93 FPS, 1440p at 75 FPS (19.4% drop), and 4K at 55 FPS (40.9% drop). The consistency of these percentage drops across Low and Medium settings suggests that the GPU's rendering load scales predictably with pixel count, and the CPU is not becoming a bottleneck at lower resolutions.

At High settings, the scaling steepens: 1080p at 70 FPS, 1440p at 56 FPS (20% drop), and 4K at 42 FPS (40% drop). The Ultra preset shows 1080p at 66 FPS, 1440p at 54 FPS (18.2% drop), and 4K at 40 FPS (39.4% drop). The similarity in scaling percentages across all settings—roughly 19-20% from 1080p to 1440p and 39-41% from 1080p to 4K—indicates that resolution is the dominant factor, not settings complexity.

This uniform scaling suggests the system is GPU-limited at all resolutions and settings. If the CPU were the bottleneck, we would expect the 1080p numbers to be more clustered regardless of settings, and the drop to 4K to be steeper relative to the GPU's ability. Instead, the consistent percentage drops point to the RTX 4070's rendering throughput as the primary constraint.

The 4K to 1080p ratio at Low settings is 71/119 = 0.597, meaning 4K delivers 59.7% of the 1080p performance. At Ultra, the ratio is 40/66 = 0.606, or 60.6%. This near-identical ratio across settings further confirms that pixel count, not scene complexity, drives the performance curve. The GPU's 504.2 GB/s bandwidth and 29.15 TFLOPS compute are being fully utilized as resolution increases, with no sign of CPU-induced plateaus.