Microsoft Flight Simulator

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

The measured FPS data for Microsoft Flight Simulator with the AMD Ryzen 5 7600 and AMD Radeon RX 6650 XT reveals a steep performance curve as resolution climbs. At 1920x1080 with Low settings, the combo delivers 106.7 FPS. Moving to 2560x1440 at the same preset drops that to 85.2 FPS, a 20% decline. Pushing further to 3840x2160 yields 60.7 FPS, which is 43% below the 1080p figure. This scaling pattern is consistent across every settings tier, and the magnitude of the drop tells a clear story about where the bottleneck sits.

At 1080p, the CPU's influence is more visible. The Ryzen 5 7600, with 6 cores and 12 threads boosting to 5.10 GHz, can feed frames quickly enough that the GPU becomes the limiting factor even at lower resolutions. But the RX 6650 XT's 8 GB of GDDR6 memory and 280.3 GB/s bandwidth show their constraints as pixel count rises. The gap between Low and Ultra settings at 4K is particularly telling: 60.7 FPS at Low versus 32.7 FPS at Ultra. That 46% reduction occurs purely from raising graphical fidelity, not resolution, indicating the GPU's compute resources—2048 shading units and 64 ROPs—are saturated by the simulator's rendering load.

The data suggests a balanced but GPU-leaning pairing. At 1440p High, the combo hits 47.3 FPS, which is smooth for a flight sim that prioritizes detail over twitch response. At 4K, even Low settings (60.7 FPS) barely cross the playable threshold, while High (34.2 FPS) and Ultra (32.7 FPS) fall into slideshow territory. The resolution scaling implies that users targeting 4K should expect to compromise heavily on presets, whereas 1080p and 1440p offer far more headroom.

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

The Ryzen 5 7600 is a 6-core, 12-thread Zen 4 part built on a 5 nm process. Its base clock of 3.80 GHz and boost of 5.10 GHz provide the single-thread muscle that Microsoft Flight Simulator relies on for physics, flight model calculations, and scenery loading. Benchmark data shows the CPU's 3DMark single-thread score at 999, and its Cinebench R23 single-core result of 3246 places it in the 83rd percentile among all CPUs. This strong per-core performance explains why the combo maintains respectable FPS at 1080p even when the GPU is not fully taxed.

In multi-threaded workloads, the 7600's 12 threads yield a Cinebench R23 multi-core score of 22992, with an average benchmark score of 26617. Its nearest rival, the AMD Ryzen 7 5800X3D, scores 26574, a delta of just 0.2%. This near-tie suggests that for flight sim, additional cores beyond 6 offer minimal benefit—the game's engine scales better with clock speed and IPC than raw core count. The 7600's 32 MB of shared L3 cache also helps with the simulator's asset streaming, though the 5800X3D's larger cache does not translate to a meaningful advantage in this title.

The CPU's role becomes less dominant at higher resolutions. As the GPU takes on more pixel-shading work, the 7600's contribution to frame pacing remains stable, but the overall FPS ceiling drops. The data shows that at 4K Ultra, the combo falls to 32.7 FPS, which is unlikely to be a CPU bottleneck—the GPU is clearly the limiting factor. The 7600's 65 W TDP and DDR5 memory support (83.2 GB/s bandwidth) provide a solid foundation, but the benchmark results indicate that in this pairing, the CPU is rarely the constraint beyond 1080p.

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

The AMD Radeon RX 6650 XT is a RDNA 2.0 part with 8 GB of GDDR6 memory on a 128-bit bus, delivering 280.3 GB/s of bandwidth. Its boost clock of 2635 MHz and game clock of 2410 MHz help it reach 10.79 TFLOPS of FP32 compute. The GPU sits in the 72nd percentile among all GPUs, with an average benchmark score of 29024. Its nearest rival, the AMD Radeon RX 6800M, scores 29011—a 0% delta—indicating the 6650 XT performs comparably to a mobile flagship in synthetic tests.

In Microsoft Flight Simulator, the 8 GB VRAM capacity is a critical factor. The game's high-resolution textures and detailed scenery can quickly consume memory, and the data shows that at 4K Ultra, the combo drops to 32.7 FPS. This is not merely a bandwidth issue; the 128-bit bus and 8 GB pool are taxed heavily. At 1080p Low, the GPU delivers 106.7 FPS, but at 4K Ultra, it falls to less than a third of that. The scaling from Low to Ultra at 4K (60.7 to 32.7 FPS) is a 46% performance hit, which is steep but consistent with the GPU's mid-range positioning.

The GPU's 64 ROPs and 128 TMUs handle pixel fill and texture mapping, but the simulator's draw calls and shader complexity push the architecture hard. The fact that the 6650 XT's nearest rivals include the RX 6800M and the Intel Arc A370M (with a -0.5% delta) suggests it occupies a competitive middle ground. However, for flight sim enthusiasts wanting high settings at 1440p, the 47.3 FPS at High is workable, while 4K demands Low settings to stay fluid. The GPU's end-of-life production status and 176 W TDP hint that this is a last-gen solution, but the measured data shows it can still handle the sim at moderate resolutions.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS rows, the optimal settings depend on the target resolution and desired smoothness. At 1920x1080, all presets are playable: Low hits 106.7 FPS, Medium 81.7 FPS, High 61.8 FPS, and Ultra 57.3 FPS. For a flight simulator where camera pans and terrain streaming benefit from higher frame rates, High at 61.8 FPS offers a good balance of visual fidelity and fluidity. Ultra's 57.3 FPS is only marginally slower, so users with 1080p displays can comfortably choose Ultra for maximum detail without sacrificing playability.

At 2560x1440, the picture tightens. Low delivers 85.2 FPS, Medium 67.3 FPS, High 47.3 FPS, and Ultra 46.4 FPS. The jump from Medium to High costs nearly 20 FPS, which is significant. For 1440p, Medium at 67.3 FPS is the sweet spot—it retains enough detail for the sim's cockpit instruments and ground scenery while keeping the frame rate above 60. High at 47.3 FPS is acceptable for those prioritizing visuals, but the drop below 50 FPS may introduce noticeable stutter during fast descents.

At 3840x2160, the choices are stark. Low manages 60.7 FPS, Medium drops to 48.3 FPS, High to 34.2 FPS, and Ultra to 32.7 FPS. Only Low provides a consistently smooth experience at 4K. Medium is borderline, but the 48.3 FPS figure may be tolerable for less action-heavy flight phases. High and Ultra are not recommended for 4K given the sub-35 FPS results. The data clearly indicates that 1080p Ultra and 1440p Medium are the most sensible presets for this combo, balancing visual quality against measured performance.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the AMD Ryzen 5 7600 and AMD Radeon RX 6650 XT ranks 1150th out of 1795 tested combos in Microsoft Flight Simulator. This places it in the lower-middle tier of the database, which is consistent with the measured FPS figures. The rank reflects that while the CPU is strong (83rd percentile), the GPU's 72nd percentile positioning drags the overall combo down, especially at higher resolutions where the GPU becomes the dominant constraint.

Compared to other pairings in the database, this combo's rank suggests it is better suited for 1080p gaming than for 4K. The 1795 combos include high-end configurations with flagship GPUs that achieve far higher FPS at 4K Ultra, whereas this pairing struggles to break 35 FPS at that preset. The rank also indicates that the CPU is not holding back the system at lower resolutions, as the 7600's single-thread performance is top-tier. However, the GPU's 8 GB VRAM and 128-bit bus limit its ceiling.

The deltaPct figures from the CPU's nearest rivals show that the 7600 trades blows with the Ryzen 7 5800X3D (0.2% delta) and Intel Core i9-12900HK (-0.2% delta). This means that swapping the CPU would not meaningfully change the combo's rank—the GPU is the differentiator. Similarly, the GPU's nearest rivals (RX 6800M, RX 470, Arc A370M) all score within 0.6% of the 6650 XT, reinforcing that this combo is a mid-pack performer in the game's benchmark hierarchy.

FAQ

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

A: Based on the measured data, 1920x1080 is the most consistent, with all presets exceeding 57 FPS. At 2560x1440, Medium is the highest playable preset at 67.3 FPS. 3840x2160 is only viable at Low settings (60.7 FPS).

Q: How does the Ryzen 5 7600 compare to its nearest CPU rival?

A: The Ryzen 5 7600's average benchmark score of 26617 is 0.2% higher than the AMD Ryzen 7 5800X3D (26574) and 0.2% higher than the AMD EPYC 8024P (26555). It trails the Intel Core i9-12900HK by 0.2%.

Q: Is the RX 6650 XT sufficient for 4K gaming in this sim?

A: The data shows 4K performance is limited. At Low settings, the combo hits 60.7 FPS, but High (34.2 FPS) and Ultra (32.7 FPS) fall below playable thresholds. Medium at 48.3 FPS is borderline.

Q: What is the FPS difference between Low and Ultra at 1080p?

A: At 1920x1080, Low delivers 106.7 FPS, while Ultra drops to 57.3 FPS. This represents a 46% reduction in frame rate from the lowest to the highest preset.

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

A: It ranks 1150th out of 1795 tested combos in Microsoft Flight Simulator, placing it in the lower-middle tier of the database.

Q: Does the CPU or GPU bottleneck this system?

A: At 1080p, the CPU's strong single-thread performance (3DMark single-thread score of 999) keeps up, but at 4K, the GPU's 8 GB VRAM and 128-bit bus become the clear limiting factor, as shown by the steep FPS drops across presets.

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

1920x1080:

• Low: 106.7 FPS
• Medium: 81.7 FPS
• High: 61.8 FPS
• Ultra: 57.3 FPS

2560x1440:

• Low: 85.2 FPS
• Medium: 67.3 FPS
• High: 47.3 FPS
• Ultra: 46.4 FPS

3840x2160:

• Low: 60.7 FPS
• Medium: 48.3 FPS
• High: 34.2 FPS
• Ultra: 32.7 FPS

The data shows a consistent pattern: each resolution step down (from 4K to 1440p to 1080p) yields roughly a 40-50% increase in FPS at the same settings. Moving from 4K Low (60.7 FPS) to 1440p Low (85.2 FPS) is a 40% gain, and from 1440p Low to 1080p Low (106.7 FPS) is another 25% gain. The largest relative jump is from 4K Ultra (32.7 FPS) to 1440p Ultra (46.4 FPS), a 42% improvement, highlighting how resolution scaling taxes the GPU disproportionately at the highest preset. At 1080p, the gap between Low and Ultra is 49.4 FPS, while at 4K it narrows to 28.0 FPS—evidence that the GPU's limits compress performance differences as pixel count rises.