Microsoft Flight Simulator

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

The NVIDIA GeForce RTX 5080 brings 16 GB of GDDR7 memory across a 256-bit bus, delivering 960.0 GB/s of bandwidth. In Microsoft Flight Simulator, this memory capacity and bandwidth prove decisive at higher resolutions, where the game's detailed terrain and aircraft models demand substantial VRAM headroom. The GPU's base clock of 2295 MHz and boost clock of 2617 MHz, combined with 10752 shading units, provide the raw compute throughput needed to maintain fluid frame rates in this simulation-heavy title.

The RTX 5080's 84 RT cores and 336 tensor cores are present, though Flight Simulator's traditional rendering path leans more heavily on the rasterization pipeline. The GPU's 56.28 TFLOPS of FP32 performance is the key driver behind the measured results, especially when transitioning from Low to Ultra presets. At 4K Ultra, the card sustains 72 FPS average, which is a demanding workload that only a top-tier GPU can manage in this title.

The 16 GB VRAM buffer is particularly relevant here. Flight Simulator is known for streaming large texture sets, and the data shows the GPU holding its own without apparent memory-related stuttering at any tested setting. The memory clock of 1875 MHz (30 Gbps effective) supports the 960.0 GB/s bandwidth figure, which is ample for the game's data streaming requirements.

The RTX 5080 sits at the 87th percentile among all GPUs in the database, with an average benchmark score of 56083. Its nearest rival, the AMD Radeon 8060S, is just 0.6% behind, while the AMD Radeon RX 9070 GRE leads by 2.2%. This places the RTX 5080 in a competitive position, though its in-game performance tells a more nuanced story than synthetic benchmarks alone.

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

At 1920x1080, the RTX 5080 demonstrates substantial headroom. Low settings produce an average of 184 FPS, Medium reaches 168 FPS (with a minimum of 143 and maximum of 193), High delivers 128 FPS, and Ultra still holds at 122 FPS. The gap between Low and Ultra is 62 FPS, indicating that even at the highest preset, the GPU is not heavily taxed at this resolution.

Moving to 2560x1440, the scaling pattern shifts. Low settings deliver 171 FPS, Medium drops to 137 FPS (minimum 116, maximum 157), High yields 103 FPS, and Ultra falls to 98 FPS. The difference between Low and Ultra here is 73 FPS, showing a wider spread as resolution increases pixel count and shader workload. Notably, the jump from High to Ultra is only 5 FPS, suggesting diminishing returns at the top preset.

At 3840x2160, the RTX 5080 begins to feel the pressure. Low settings still manage 130 FPS, which is strong, but Medium drops to 101 FPS (minimum 86, maximum 116), High falls to 76 FPS, and Ultra bottoms out at 72 FPS. The Low-to-Ultra delta expands to 58 FPS, but the critical observation is the steep decline between Medium and High — a 25 FPS drop — compared to the gentler 4 FPS decline from High to Ultra.

The 1080p to 4K transition reveals the GPU's scaling behavior. At Low settings, 1080p yields 184 FPS while 4K yields 130 FPS, a 54 FPS reduction. At Ultra, 1080p produces 122 FPS while 4K produces 72 FPS, a 50 FPS reduction. The consistency of this drop across settings indicates that the RTX 5080's performance ceiling is being approached at 4K, regardless of preset complexity.

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

The data points to Medium as the optimal balance for this combination at 1440p and 4K. At 2560x1440, Medium delivers 137 FPS with a minimum of 116 FPS, which is well above the threshold for smooth flight simulation. High only adds 5 FPS over Ultra at 1440p, but Medium is 34 FPS faster than High — a substantial gain for a modest visual step down.

At 3840x2160, Medium's 101 FPS average with an 86 FPS minimum provides a more consistent experience than High's 76 FPS average. The 25 FPS penalty for moving from Medium to High is significant, and the visual improvement in Flight Simulator's cockpit and terrain rendering may not justify that frame rate loss for most users. Ultra at 4K drops to 72 FPS, which approaches the lower bound of acceptable performance for this genre.

For 1080p, the recommendation shifts. Even Ultra holds at 122 FPS, so users with 1080p displays can safely maximize settings. Medium's 168 FPS is excessive for most displays, and the 46 FPS gain from Ultra to Medium is unnecessary when Ultra already clears 120 FPS. The 143 FPS minimum at Medium also indicates stable frame delivery.

The key insight is that Medium consistently offers the best frame-time consistency, as evidenced by the available minimum and maximum values. At every resolution, Medium shows the narrowest documented range: 143-193 at 1080p, 116-157 at 1440p, and 86-116 at 4K. This stability is critical in a flight simulator where sudden frame drops can disrupt the experience.

FAQ

Q: What is the highest average FPS achievable with this combo at 4K?

A: The highest 4K average is 130 FPS at Low settings. Medium delivers 101 FPS, High drops to 76 FPS, and Ultra bottoms out at 72 FPS.

Q: How does the RTX 5080 compare to its nearest GPU rivals in synthetic benchmarks?

A: The RTX 5080's average benchmark score is 56083, which is 0.6% ahead of the AMD Radeon 8060S and 0.7% ahead of the AMD Radeon RX 6750 GRE 12 GB. The AMD Radeon RX 9070 GRE leads by 2.2%.

Q: Is the Ryzen 9 5950X a bottleneck at 1080p?

A: The data does not indicate a CPU bottleneck. At 1080p Low, the combo achieves 184 FPS, and at 1080p Ultra it still reaches 122 FPS. The CPU's 3dmark single-thread score of 944 and 16-core/32-thread configuration provide ample processing power.

Q: What setting shows the smallest performance difference between High and Ultra?

A: At 1440p, High yields 103 FPS and Ultra yields 98 FPS, a difference of only 5 FPS. At 1080p, the gap is 6 FPS (128 vs 122), and at 4K it is 4 FPS (76 vs 72).

Q: How much faster is Low compared to Ultra at each resolution?

A: At 1080p, Low is 62 FPS faster than Ultra (184 vs 122). At 1440p, the gap is 73 FPS (171 vs 98). At 4K, Low leads by 58 FPS (130 vs 72).

Q: What is the combo's rank among all tested CPU-GPU combinations in this game?

A: The AMD Ryzen 9 5950X + NVIDIA GeForce RTX 5080 combination ranks 209th out of 3714 tested combos, placing it in the top 5.6% of all configurations.

How This Combo Ranks

The combination of AMD Ryzen 9 5950X and NVIDIA GeForce RTX 5080 ranks 209th out of 3714 tested combos in Microsoft Flight Simulator. This places the pairing in the top 5.6% of all configurations, which is a strong showing for a CPU released in late 2020 paired with a GPU from early 2025.

The CPU's percentile rank of 91 among all processors and the GPU's percentile rank of 87 among all GPUs both contribute to this high composite position. The Ryzen 9 5950X's nearest CPU rivals — the Intel Core Ultra 5 235HX (0.2% higher avg score), AMD EPYC 8124P (0.3% higher), Intel Core i9-13900F (0.4% lower), and Intel Core i7-14700 (0.7% higher) — are all within a narrow band, indicating that the CPU is not a differentiating factor at this performance tier.

The RTX 5080's nearest GPU rivals show a similar clustering. The AMD Radeon 8060S trails by just 0.6%, the AMD Radeon RX 6750 GRE 12 GB trails by 0.7%, and the AMD Radeon Pro W5700X trails by 2.3%. The AMD Radeon RX 9070 GRE leads by 2.2%. This tight grouping suggests that synthetic benchmark scores do not fully capture the in-game performance differences, where the RTX 5080's 16 GB GDDR7 memory and 960.0 GB/s bandwidth provide tangible benefits in Flight Simulator.

The rank of 209 out of 3714 combos is notable because it places this pairing ahead of many newer CPU configurations. This reflects the Ryzen 9 5950X's enduring strength in multithreaded workloads — its 16 cores and 32 threads with a 4.90 GHz boost clock still deliver competitive performance in simulation titles that leverage parallel processing.

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

The AMD Ryzen 9 5950X is a 16-core, 32-thread processor based on the Zen 3 architecture (codenamed Vermeer), built on TSMC's 7 nm process. Its base clock of 3.40 GHz can boost to 4.90 GHz, and it carries 64 MB of L3 cache. This configuration is well-suited to Flight Simulator, which benefits from both high single-thread performance for game logic and substantial multi-thread capability for terrain rendering and physics calculations.

The CPU's benchmark results support this. Its 3dmark single-thread score is 944, while its 16-thread score is 10810 and max-thread score reaches 11597. The Cinebench R23 scores are 1614 for single-core and 26017 for multi-core. These numbers indicate strong single-thread performance — critical for the main simulation loop — and exceptional multi-thread throughput for background tasks.

The Ryzen 9 5950X's 91st percentile ranking among all CPUs, with an average benchmark score of 51947, places it in elite company. Its nearest rivals are all within 0.7% of its score, showing that this 5000-series processor remains competitive against much newer silicon. The 64 MB L3 cache is particularly beneficial for Flight Simulator's data-heavy workloads, as it reduces memory latency when accessing frequently used terrain and aircraft data.

The CPU's 105 W TDP and dual-channel DDR4 memory support (51.2 GB/s bandwidth) are adequate for this pairing. The data shows no evidence of CPU-induced frame rate limitations, as the GPU is clearly the primary constraint at higher resolutions. At 1080p, where CPU overhead typically becomes more visible, the combo still achieves 122 FPS at Ultra, indicating the 5950X has ample headroom.

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

The measured data reveals a clear pattern in resolution scaling. Moving from 1080p to 4K at Low settings, average FPS drops from 184 to 130, a 29% reduction. At Medium, the drop is from 168 to 101, a 40% reduction. High settings show a reduction from 128 to 76, a 41% drop, and Ultra falls from 122 to 72, a 41% reduction.

This consistent 40%+ reduction from 1080p to 4K at Medium and above indicates that the RTX 5080 is the limiting component at higher resolutions. The GPU's rendering workload scales with pixel count, and the data shows this expected behavior. The smaller 29% reduction at Low settings suggests that at the lowest preset, other bottlenecks — potentially memory bandwidth or driver overhead — begin to play a larger role.

The 1440p to 4K transition is steeper than the 1080p to 1440p transition. At Low settings, 1440p delivers 171 FPS while 4K delivers 130 FPS, a 24% drop. At Ultra, the drop is 26% (98 to 72). This indicates that the GPU's performance curve flattens as resolution increases, with diminishing returns at lower resolutions where the CPU or other system components may start to constrain performance.

The fact that the 1080p to 1440p drop at Low settings is only 7% (184 to 171) while the 1440p to 4K drop is 24% suggests that at Low settings, the Ryzen 9 5950X may be providing some uplift at 1080p, but the GPU becomes the sole bottleneck as pixel count rises. At Ultra settings, the drops are more uniform — 20% from 1080p to 1440p (122 to 98) and 27% from 1440p to 4K (98 to 72) — indicating a more GPU-bound scenario across all resolutions.

The takeaway is clear: for users targeting 4K with this combo, the RTX 5080 is the limiting factor, and Medium settings (101 FPS average) represent the best balance of visual fidelity and performance. At 1440p, the GPU still has headroom, and at 1080p, the combo is overwhelmingly GPU-bound but with sufficient performance to max out settings.