Microsoft Flight Simulator

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

The AMD Ryzen 5 9600X is a 6-core, 12-thread processor built on the Zen 5 architecture (Granite Ridge) using TSMC's 4 nm process node. It operates with a base clock of 3.90 GHz and a boost clock of 5.40 GHz, drawing a 65 W TDP. The CPU features 80 KB of L1 cache per core, 1 MB of L2 cache per core, and a shared 32 MB L3 cache. Memory support includes dual-channel DDR5 with a bandwidth of 89.6 GB/s.

In the context of Microsoft Flight Simulator, the CPU's role is significant because flight simulation workloads often rely heavily on single-thread performance for physics, AI traffic, and scenery processing. The Ryzen 5 9600X's single-thread benchmark scores are notable: it achieves 3,603 points in Cinebench R23 single-core, 1,513 in Cinebench R20 single-core, and 1,253 in 3DMark single-thread. These numbers place it in the 85th percentile among all CPUs, indicating strong per-core capability. The multi-threaded scores, such as 25,525 in Cinebench R23 multi-core and 7,590 in 3DMark max threads, show that while the 6-core configuration is not a top-tier multi-threaded processor, it still provides ample headroom for the game's threaded workloads.

The benchmark data reveals that the CPU's nearest rivals in average benchmark score are the Intel Core i5-13490F (28,173 average score, 0.3% ahead), AMD Ryzen 5 230 (28,164, 0.3% ahead), AMD Ryzen 7 8845HS (28,369, 0.4% behind), and Intel Core i5-14500T (28,377, 0.5% behind). These deltaPct values are all within a narrow 0.8% band, suggesting that the Ryzen 5 9600X's computational performance is essentially comparable to these competitors in general-purpose workloads. However, for a game like Microsoft Flight Simulator, the single-thread-oriented design of the Zen 5 architecture likely provides an advantage in frame pacing, especially at lower resolutions where CPU overhead becomes more pronounced.

# GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4090 is built on the Ada Lovelace architecture with the AD102 chip, fabricated on TSMC's 5 nm process. It ships with 24 GB of GDDR6X memory on a 384-bit bus, delivering 1.01 TB/s of bandwidth. The GPU operates at a base clock of 2235 MHz and a boost clock of 2520 MHz, with memory running at 1313 MHz (21 Gbps effective). The card contains 16,384 shading units, 512 texture mapping units, 176 ROPs, 128 RT cores, and 512 tensor cores. Its compute capabilities include 82.58 TFLOPS for both FP32 and FP16 operations.

The RTX 4090's memory capacity and bandwidth are critical for Microsoft Flight Simulator, which streams vast amounts of terrain, photogrammetry, and aircraft detail. The 24 GB VRAM ensures that even at 4K resolution with Ultra settings, texture data remains resident without swapping to system memory. The GPU's percentile ranking at 91 among all GPUs reflects its position as one of the most powerful consumer graphics cards available. Its average benchmark score of 66,473 places it near the NVIDIA Tesla T4 (66,733, 0.4% ahead), NVIDIA Tesla P40 (66,127, 0.5% behind), AMD Radeon Pro Vega 56 (67,097, 0.9% ahead), and NVIDIA Quadro P6000 (67,320, 1.3% ahead). These comparisons are interesting because several rivals are workstation or datacenter cards, highlighting the RTX 4090's raw compute strength relative to professional offerings.

In this game, the GPU's role becomes dominant at higher resolutions and quality settings, where pixel throughput and shading complexity increase. The RTX 4090's 443.5 GPixel/s pixel rate and 1,290.2 GTexel/s texture rate allow it to maintain high frame rates even under the demanding rendering loads of flight simulation, which includes complex lighting, volumetric clouds, and detailed terrain tessellation.

# Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data reveals a clear scaling pattern across resolutions. At 1920x1080 with Low settings, the system achieves 233.5 FPS. Moving to 2560x1440 Low drops this to 186.9 FPS (a 20% reduction), and at 3840x2160 Low, it falls to 133 FPS (a 43% reduction from 1080p). For Ultra settings, the progression is 130.4 FPS at 1080p, 105.1 FPS at 1440p, and 77.5 FPS at 4K. The percentage drop from 1080p to 4K for Ultra settings is approximately 41%, which is slightly less than the Low settings drop.

This scaling behavior indicates that at 1080p, the CPU and GPU are both engaged, with the CPU's strong single-thread performance allowing the RTX 4090 to push very high frame rates. As resolution increases, the GPU becomes progressively more the limiting component, as evidenced by the consistent reduction in FPS. The fact that even at 4K Ultra, the system maintains 77.5 FPS suggests the RTX 4090's 24 GB VRAM and 1.01 TB/s bandwidth are sufficient to handle the game's most demanding configurations without severe bottlenecks.

The gap between Low and Ultra settings at each resolution is also telling. At 1080p, Low produces 233.5 FPS while Ultra produces 130.4 FPS, a difference of 103.1 FPS. At 4K, the gap narrows to 55.5 FPS (133 FPS vs. 77.5 FPS). This narrowing indicates that at higher resolutions, the GPU's rendering workload becomes more uniform across settings, while at lower resolutions, the CPU's ability to feed the GPU is more pronounced.

# How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the AMD Ryzen 5 9600X and NVIDIA GeForce RTX 4090 ranks 19th out of 1,795 tested combos in Microsoft Flight Simulator. This places the pairing in the top 1.1% of all tested configurations, which is a strong result given that the CPU is a mid-range 6-core part while the GPU is a flagship. The ranking demonstrates that for this particular game, the GPU is the dominant factor in overall performance, and the Ryzen 5 9600X's single-thread strength is sufficient to avoid crippling bottlenecks.

The rank of 19 means there are 18 combos that achieve higher performance in this game. Given the RTX 4090's position as one of the fastest GPUs, those higher-ranked combos likely feature more powerful CPUs (e.g., higher-core-count or higher-clocked parts). However, the delta between the Ryzen 5 9600X and those CPUs may not be large, as the measured FPS numbers show the system already achieves playable frame rates at all resolutions and settings. The percentile ranking of the CPU at 85 and GPU at 91 independently, combined with the combo rank of 19, suggests that the pairing is well-balanced for this game's specific demands, where both single-thread CPU performance and GPU rasterization power are required.

# Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 1920x1080, the system delivers the following average FPS: Low settings produce 233.5 FPS, Medium produces 183 FPS, High produces 134.7 FPS, and Ultra produces 130.4 FPS. The transition from Low to Ultra represents a 44% reduction in frame rate, which indicates that the game's quality presets significantly affect GPU load even at this resolution.

At 2560x1440, the average FPS values are: Low at 186.9 FPS, Medium at 146.1 FPS, High at 108.7 FPS, and Ultra at 105.1 FPS. The drop from Low to Ultra is 44%, consistent with the 1080p scaling. The difference between High and Ultra is notably small (3.6 FPS), suggesting that the Ultra preset at 1440p is not substantially more demanding than High.

At 3840x2160, the average FPS values are: Low at 133 FPS, Medium at 106.7 FPS, High at 79.8 FPS, and Ultra at 77.5 FPS. The Low-to-Ultra reduction is 42%, nearly identical to the other resolutions. The High-to-Ultra gap narrows to 2.3 FPS at 4K, further indicating that High and Ultra presets converge in performance impact at higher resolutions.

The data shows that at every resolution, the gap between Low and Medium is larger than between High and Ultra. For example, at 1080p, Low-to-Medium is 50.5 FPS, while High-to-Ultra is only 4.3 FPS. This pattern suggests that the Medium preset introduces substantial rendering features (e.g., enhanced shadows, reflections) that tax the GPU, while Ultra adds diminishing returns.

# FAQ

Q: Does the Ryzen 5 9600X bottleneck the RTX 4090 in Microsoft Flight Simulator?

A: The data shows that at 1080p Low, the system reaches 233.5 FPS, which is high but not maximal for an RTX 4090. At 4K Ultra, it drops to 77.5 FPS. The CPU's 85th percentile ranking and strong single-thread scores (3,603 Cinebench R23) suggest it provides adequate feeding, but some bottleneck may exist at lower resolutions where FPS exceeds 200.

Q: What is the playable frame rate at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the system achieves an average of 77.5 FPS. This is comfortably above the 60 FPS threshold and indicates smooth gameplay for most users.

Q: How much faster is Low settings compared to Ultra at 1440p?

A: At 2560x1440, Low produces 186.9 FPS while Ultra produces 105.1 FPS. Low is 81.8 FPS faster, which represents a 78% improvement over Ultra.

Q: Is the RTX 4090's 24 GB VRAM necessary for this game?

A: The 24 GB GDDR6X memory with 1.01 TB/s bandwidth ensures that texture streaming at 4K Ultra does not cause stuttering or texture pop-in, as evidenced by the 77.5 FPS average at those settings.

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

A: The combo ranks 19th out of 1,795 tested combos, placing it in the top 1.1% of all pairings tested for this game.

Q: What are the FPS differences between High and Ultra settings at each resolution?

A: At 1080p, High gives 134.7 FPS and Ultra gives 130.4 FPS (4.3 FPS difference). At 1440p, High gives 108.7 FPS and Ultra gives 105.1 FPS (3.6 FPS difference). At 4K, High gives 79.8 FPS and Ultra gives 77.5 FPS (2.3 FPS difference).