Microsoft Flight Simulator

How This Combo Ranks

The AMD Ryzen 7 5800X3D paired with the NVIDIA GeForce RTX 5090 D lands at rank 107 out of 2,996 tested combos in Microsoft Flight Simulator. That places this configuration in the top 3.6% of all tested systems, a strong showing for a flight sim known for punishing both CPU and GPU. The ranking reflects a combination that can push high frame rates even at 4K, though the data shows the CPU becomes a limiting factor at lower resolutions.

Benchmark results indicate the RTX 5090 D is the dominant component here, sitting at the 92nd percentile among all GPUs. Its average benchmark score of 77,712 places it slightly ahead of the AMD Radeon RX 6850M XT by 1.6% and marginally behind the NVIDIA Tesla P100 PCIe 16 GB by 2.4%. The CPU, meanwhile, sits at the 80th percentile with an average score of 27,896, essentially tied with the AMD Ryzen 7 6800U (0% delta) and the Intel Core i9-10900K (0.1% ahead). This pairing of a top-tier GPU with a mid-high-tier CPU creates a system that excels at higher resolutions where GPU load dominates, but leaves performance on the table at 1080p.

The combo's rank of 107 out of 2,996 is impressive given the CPU's age — it launched in April 2022 with a launch MSRP of $449. The RTX 5090 D, by contrast, is a current-generation Blackwell part with a 2025 release date and a launch MSRP of 2,299 USD. The data suggests that the GPU carries most of the weight in this pairing, but the 5800X3D's 3D V-Cache architecture helps it hold up better than typical 5000-series parts in simulation workloads.

FAQ

Q: How does this combo perform at 1080p compared to 4K?

A: The average FPS drops from 171 at 1080p Low to 144 at 4K Low, and from 141 at 1080p High to 88 at 4K High. The scaling is not linear, indicating a shift in bottleneck behavior as resolution increases.

Q: Is the CPU or GPU the limiting factor in this game?

A: At 1080p, the CPU is clearly the bottleneck — the RTX 5090 D cannot reach its full potential, as evidenced by the relatively small FPS gains from Low to High settings. At 4K, the GPU becomes the primary constraint, with FPS dropping by roughly 30-50% compared to 1080p depending on settings.

Q: What is the best settings preset for smooth gameplay?

A: Medium settings offer the best balance across all resolutions. At 4K Medium, the combo averages 118 FPS with a minimum of 100 FPS, while at 1080p Medium it reaches 156 FPS average with a 133 FPS minimum. Ultra settings provide only modest gains in visual fidelity while costing 15-30% of the frame rate.

Q: How does the RTX 5090 D compare to its nearest rivals?

A: The RTX 5090 D's average benchmark score of 77,712 is 1.1% higher than the AMD Radeon RX 6650M XT, 1.6% lower than the AMD Radeon RX 6850M XT, and 2.1-2.4% lower than the NVIDIA Tesla P100 variants. These are small margins, suggesting the 5090 D is competitive but not dominant in raw compute metrics.

Q: What are the CPU's key specifications for this workload?

A: The Ryzen 7 5800X3D has 8 cores and 16 threads, with a base clock of 3.40 GHz and a boost clock of 4.50 GHz. It features 96 MB of shared L3 cache, which is significant for simulation games that benefit from large cache pools. Its Cinebench R23 multicore score is 14,317 and single-core is 1,452.

Q: Does the combo maintain playable frame rates at 4K Ultra?

A: Yes, but barely. At 4K Ultra, the average FPS is 84, which is above the 60 FPS threshold for smooth gameplay. However, this is a 42% drop from 4K Medium's 118 FPS, so users seeking higher refresh rates should consider Medium settings.

CPU Role

The AMD Ryzen 7 5800X3D is an 8-core, 16-thread processor based on the Zen 3 Vermeer architecture, fabricated on TSMC's 7 nm process. It runs at a base clock of 3.40 GHz and boosts to 4.50 GHz, drawing up to 105 W TDP. The defining feature is its 96 MB of shared L3 cache, which is triple the amount found in standard Zen 3 desktop parts. This cache configuration is particularly relevant for Microsoft Flight Simulator, a title that streams terrain and scenery data continuously.

Benchmark results show the CPU's multithreaded performance is respectable but not class-leading. Its Cinebench R23 multicore score of 14,317 and Geekbench multicore score of 11,765 place it in the 80th percentile of all CPUs. The single-thread scores — 1,452 in Cinebench R23 and 2,017 in Geekbench — indicate that the 5800X3D handles lightly-threaded workloads adequately, though it trails newer architectures. However, the 3D V-Cache appears to help in simulation scenarios, as the CPU's average benchmark score of 27,896 is nearly identical to the Intel Core i9-10900K (28,872, a 0.1% difference) despite the Intel chip having higher clock speeds.

In the context of this game, the CPU's 16 threads are more than sufficient — Flight Simulator rarely uses more than 8-12 threads effectively. The key metric is the L3 cache, which reduces memory latency when accessing terrain tiles and aircraft systems data. The measured FPS data supports this: at 1080p Low, the combo hits 171 FPS, but this drops to 141 FPS at 1080p High, a 17.5% reduction. This setting-dependent scaling at a resolution where the GPU is not fully stressed suggests the CPU is managing the simulation logic while the GPU handles rendering.

The 5800X3D's 3DMark scores reinforce its balanced profile: 8,845 in single-thread, 7,299 in 16-thread, and 7,285 in max-thread tests. The near-flat scaling from 8-thread (5,906) to 16-thread (7,299) indicates diminishing returns beyond 8 threads, which aligns with the game's thread usage patterns. For this title, the CPU delivers consistent performance without becoming a severe bottleneck until the GPU tries to push very high frame rates at 1080p.

Measured FPS Breakdown

The measured FPS data covers three resolutions (1920x1080, 2560x1440, 3840x2160) and four settings presets (Low, Medium, High, Ultra). At 1080p, the combo delivers average frame rates from 138 FPS (Ultra) to 171 FPS (Low). The Medium preset records a 156 FPS average with a minimum of 133 FPS and maximum of 179 FPS, providing a stable experience with headroom above 144 Hz monitors.

Moving to 1440p, the averages shift to a range of 114 FPS (Ultra) to 159 FPS (Low). High settings produce 120 FPS average, while Medium hits 145 FPS with a minimum of 123 FPS and maximum of 167 FPS. The drop from 1080p to 1440p is modest — roughly 7-10% across most presets — indicating the GPU has sufficient bandwidth to handle the increased pixel count without severe penalties.

At 4K, the picture changes dramatically. Low settings yield 144 FPS average, Medium drops to 118 FPS (with 100 FPS minimum and 135 FPS maximum), High falls to 88 FPS, and Ultra bottoms out at 84 FPS. The gap between Low and Ultra at 4K is 60 FPS, a 41.7% reduction, compared to a 33 FPS (19.3%) reduction at 1080p. This widening gap demonstrates that the GPU is the primary bottleneck at 4K, with each increase in settings adding significant rendering load that the RTX 5090 D must process.

The High preset at 4K, at 88 FPS average, is notably weaker than Medium at 118 FPS — a 25.4% penalty. This suggests that the High preset introduces specific rendering features (possibly higher shadow quality or volumetric effects) that disproportionately impact the GPU. The Ultra preset only adds another 4 FPS drop (to 84 FPS), indicating diminishing returns from High to Ultra at 4K.

Across all resolutions, the Medium preset offers the most consistent performance with the tightest min-max spread. At 1440p Medium, the 123-167 FPS range represents a 35.8% variance, while at 4K Medium, the 100-135 FPS range is a 35% spread. These figures suggest that Medium settings keep the frame pacing within acceptable bounds for both 144 Hz and 60 Hz displays.

Resolution Scaling

The FPS drop from 1080p to 4K reveals the bottleneck distribution between CPU and GPU. At Low settings, the drop is from 171 FPS at 1080p to 144 FPS at 4K — a 15.8% reduction. At High settings, the drop is more severe: 141 FPS to 88 FPS, a 37.6% reduction. This pattern indicates that at Low settings, the CPU limits the frame rate even at 4K, because the GPU can render simple frames quickly enough to still hit 144 FPS. At High settings, the GPU's rendering workload becomes the constraint, causing a much steeper drop.

Medium settings show a similar trend: 156 FPS at 1080p down to 118 FPS at 4K, a 24.4% decrease. Ultra settings exhibit the smallest absolute drop from 138 FPS to 84 FPS, a 39.1% reduction. The fact that Ultra at 1080p (138 FPS) is nearly identical to Low at 4K (144 FPS) suggests that the GPU's raw throughput is sufficient for either high-resolution simple rendering or low-resolution complex rendering, but not both simultaneously.

The 1440p data points serve as an intermediate check. At 1440p Low, the combo hits 159 FPS, which is only 7% lower than 1080p Low. At 1440p High, 120 FPS is 14.9% lower than 1080p High. These percentage drops are roughly half of the 4K drops, confirming a near-linear scaling with pixel count up to a point. The RTX 5090 D's 32 GB of GDDR7 memory on a 512-bit bus with 1.79 TB/s bandwidth provides ample memory bandwidth for the higher resolutions, so the scaling is primarily compute-bound.

The data strongly suggests that the RTX 5090 D is underutilized at 1080p, especially at Low and Medium settings where the CPU prevents the GPU from reaching higher frame rates. The 5800X3D's boost clock of 4.50 GHz is not exceptionally high, and its 3DMark single-thread score of 884 indicates moderate single-thread performance. For a flight sim where the main thread often handles physics and AI, this becomes the ceiling at lower resolutions.

At 4K, the scales tip toward the GPU. The RTX 5090 D's 104.8 TFLOPS of FP32 performance and 1,636.8 GTexel/s texture rate are taxed heavily by the high-resolution rendering. The drop from 118 FPS at 4K Medium to 88 FPS at 4K High (a 25.4% penalty) shows that specific settings within the High preset — likely shadow cascades or terrain detail — impose a significant GPU cost. Users targeting 4K should prioritize Medium settings to stay above 100 FPS, as the gains from High are not worth the 30 FPS loss.

Settings Recommendations

Based on the measured FPS data, the Medium preset delivers the best experience across all three resolutions for this combo. At 4K Medium, the average 118 FPS with a 100 FPS minimum ensures consistent smoothness on 60 Hz displays and provides headroom for 120 Hz monitors. The 100 FPS minimum is the highest among all 4K presets — High has no recorded minimum but averages 88 FPS, and Ultra averages 84 FPS, both likely dipping below 80 FPS in dense scenery.

At 1440p, Medium is equally compelling: 145 FPS average with a 123 FPS minimum. This comfortably exceeds 120 Hz refresh rates and maintains a 35.8% variance that is acceptable for a simulator where frame pacing is less critical than in fast-paced shooters. The High preset at 1440p (120 FPS average) is viable for 120 Hz displays, but the 25 FPS loss from Medium is significant.

For 1080p users, Medium offers 156 FPS average with a 133 FPS minimum, which is ideal for 144 Hz monitors. The Low preset (171 FPS) provides no practical benefit unless chasing maximum frame rates, and the visual degradation in a flight simulator — where cockpit readability and terrain detail matter — outweighs the 15 FPS gain. High at 1080p (141 FPS) is a reasonable alternative if visual fidelity is prioritized, but the 15 FPS drop from Medium is notable.

The Ultra preset is not recommended for any resolution. At 4K Ultra, the 84 FPS average is only 4 FPS below High, yet the visual improvements are marginal in most scenes. At 1440p Ultra (114 FPS) and 1080p Ultra (138 FPS), the preset underperforms Medium by 21-31 FPS while offering diminishing returns. The data shows that Ultra's additional effects — likely higher draw distances and more detailed shadows — do not justify the frame rate cost.

The RTX 5090 D's 32 GB of VRAM ensures that memory capacity is not a constraint at any resolution or preset in this game. The 512-bit memory bus and 1.79 TB/s bandwidth also prevent bandwidth throttling, so the FPS differences across settings are purely compute-driven. Therefore, the recommendation is clear: use Medium as the default preset, and only consider High at 1080p if the user has a 120 Hz monitor and prioritizes visuals over frame rate headroom.

For users with VRR displays, the Medium preset's minimum frame rates (100 FPS at 4K, 123 FPS at 1440p, 133 FPS at 1080p) ensure that the experience remains fluid even during complex scenes with heavy cloud coverage or airport ground traffic. The High preset at 4K, with an 88 FPS average, may cause visible stuttering on 120 Hz VRR displays if frame times spike, whereas Medium's higher average provides more buffer.