Microsoft Flight Simulator

# Microsoft Flight Simulator — Intel Core Ultra 7 270K Plus + AMD Radeon RX 570

This combination of an Intel Core Ultra 7 270K Plus processor with an AMD Radeon RX 570 graphics card produces frame rates that are heavily constrained by the GPU across all resolutions and settings in Microsoft Flight Simulator. The measured data shows a system that can achieve playable frame rates only at the lowest settings and resolution, with the gap between Low and Ultra presets widening dramatically as resolution increases. The CPU, which ranks in the 96th percentile among all tested processors, is never the limiting factor in this pairing; instead, the GPU's 4 GB memory capacity and older GCN 4.0 architecture create a consistent bottleneck that defines the entire performance profile.

Resolution Scaling

The frame rate drop from 1080p to 4K reveals a classic GPU-bound scenario where the Radeon RX 570 struggles to maintain even minimal performance at higher resolutions. At Low settings, the average FPS falls from 48 at 1920x1080 to 39 at 2560x1440, a reduction of 9 FPS, and then further to 29 at 3840x2160, representing a cumulative drop of 19 FPS from 1080p to 4K. This scaling pattern — roughly a 40% performance loss from 1080p to 4K at Low settings — is consistent with a GPU that is running out of pixel throughput and memory bandwidth as the rendering load increases. The 224.0 GB/s memory bandwidth of the RX 570, paired with 4 GB of GDDR5, becomes increasingly inadequate as the framebuffer requirements grow with each resolution step.

At Medium settings, the same trend appears but with more severe absolute numbers. The average FPS at 1080p is 38, dropping to 30 at 1440p and then to 22 at 4K. The percentage drop from 1080p to 1440p is roughly 21%, while the drop from 1440p to 4K is about 27%, indicating that the scaling penalty accelerates at higher resolutions. The minimum FPS values at Medium settings — 32 at 1080p, 26 at 1440p, and 19 at 4K — show that frame time consistency also degrades, with the gap between average and minimum FPS widening from 6 FPS at 1080p to 3 FPS at 4K, suggesting increased frame pacing issues at higher resolutions.

High settings follow the same pattern: 28 FPS at 1080p, 23 FPS at 1440p, and 17 FPS at 4K. The relative drops between each resolution step are approximately 18% from 1080p to 1440p and 26% from 1440p to 4K. Ultra settings produce the lowest numbers across the board: 27 FPS at 1080p, 22 FPS at 1440p, and 16 FPS at 4K. Interestingly, the difference between High and Ultra at the same resolution is small — only 1 FPS at 1080p and 1440p, and 1 FPS at 4K — which suggests that the GPU is already saturated at High settings and additional graphical features in Ultra have minimal incremental impact on the already-overwhelmed rendering pipeline.

The limiting component is clearly the GPU. The Intel Core Ultra 7 270K Plus, with its 24 cores and 24 threads, can boost up to 5.50 GHz and has a 36 MB shared L3 cache, making it more than capable of feeding frames to the RX 570. The fact that frame rates scale almost linearly with resolution — and that the CPU-heavy benchmark scores for this processor are in the 96th percentile — indicates that the CPU is idle-waiting for the GPU to finish rendering. A stronger GPU would immediately improve FPS at all resolutions, while upgrading the CPU would yield negligible gains in this specific game scenario.

Settings Recommendations

Based on the measured frame rates, the only viable configuration for acceptable playability is Low settings at 1920x1080, which produces an average of 48 FPS. This is the only combination of resolution and settings that crosses the 30 FPS threshold that most flight simulators require for smooth camera panning and instrument readability. At 1440p Low, the average drops to 39 FPS, which remains technically playable but approaches the lower bound of comfort. At 4K Low, the 29 FPS average is borderline, with frequent dips likely making the experience feel stuttery during complex scenery loading.

Medium settings at 1080p yield 38 FPS average, which is playable but represents a 21% performance penalty compared to Low at the same resolution. The trade-off between visual fidelity and frame rate is steep: the jump from Low to Medium at 1080p costs 10 FPS, while the jump from Medium to High costs another 10 FPS, and High to Ultra costs only 1 FPS. This suggests that Medium at 1080p might be the sweet spot for users who want some visual improvements without sacrificing too much smoothness, but the data does not show a clear advantage over Low given the minimal gains in visual quality at this GPU's performance level.

At 1440p and 4K, no settings preset produces a consistently playable experience. High settings at 1440p average 23 FPS, Ultra at 1440p averages 22 FPS, and all 4K presets fall below 30 FPS. The Medium settings at 4K, with an average of 22 FPS and a minimum of 19 FPS, would be particularly jarring during flight, as the frame rate would frequently drop into the high teens. For users who prioritize smoothness over visuals, the data clearly recommends 1080p Low as the primary configuration, with 1080p Medium as a secondary option for those who can tolerate occasional frame rate dips. The Ultra preset at any resolution offers no meaningful benefit over High — the 1 FPS difference between them at all resolutions does not justify the potential visual trade-offs.

CPU Role

The Intel Core Ultra 7 270K Plus is a 24-core, 24-thread processor based on the Arrow Lake Refresh architecture, manufactured on a 3 nm process by TSMC. Its base clock of 3.70 GHz and boost clock of 5.50 GHz, combined with a 36 MB shared L3 cache and 192 KB of L1 cache per core, position it as a high-end desktop CPU. In synthetic benchmarks, it achieves a Cinebench R23 multi-core score of 44,253 and a single-core score of 2,439, placing it in the 96th percentile of all CPUs tested in this database. Its nearest rivals in average benchmark score are the Intel Xeon 6520P (delta of 0%) and the AMD EPYC 4564P (delta of -1.5%), indicating that this CPU performs competitively with server-class processors.

In Microsoft Flight Simulator, the CPU's role is to handle game logic, physics calculations, AI traffic, and scenery loading, while the GPU renders the actual frames. The measured FPS data shows that even at the lowest resolution and settings — where the GPU workload is minimal — the frame rate reaches only 48 FPS, which is far below what this CPU could theoretically support. Flight Simulator is known for being heavily single-threaded in many of its core systems, and while this processor has strong single-core performance (Cinebench R23 single-core score of 2,439), the game's frame rate is not limited by CPU throughput in this pairing.

The PassMark multi-thread score of 68,574 and single-thread score of 5,068 further confirm that the CPU has ample headroom. The fact that the average FPS at 1080p Low (48) is nearly double the average at 4K Low (29) demonstrates that the GPU, not the CPU, determines performance. If the CPU were the bottleneck, we would expect similar frame rates across resolutions, as the CPU workload does not scale significantly with resolution. Instead, the data shows a clear GPU-bound scenario, where the RX 570's 5.095 TFLOPS of FP32 compute and 32 ROPs are insufficient to keep up with the CPU's output. Upgrading to a more powerful GPU would unlock the CPU's full potential in this game, while the current combination leaves most of the processor's capabilities unused.

FAQ

Q: What is the best resolution and settings combination for this hardware in Microsoft Flight Simulator?

A: The measured data shows that 1920x1080 at Low settings produces the highest average FPS at 48, making it the only configuration that consistently exceeds 30 FPS. 1440p Low at 39 FPS is the next best option, while all 4K presets fall below 30 FPS.

Q: Why does the frame rate drop so significantly when moving from 1080p to 4K?

A: The Radeon RX 570's 4 GB of GDDR5 memory and 224.0 GB/s bandwidth become saturated at higher resolutions. The data shows a 19 FPS drop from 48 FPS at 1080p Low to 29 FPS at 4K Low, indicating that the GPU's rendering capacity is the primary limiting factor.

Q: Is the Intel Core Ultra 7 270K Plus powerful enough for this game?

A: Yes, the CPU is not the bottleneck in this combination. It ranks in the 96th percentile of all CPUs tested, with a Cinebench R23 multi-core score of 44,253 and a single-core score of 2,439. The frame rates are consistently limited by the GPU, not the CPU.

Q: How does the RX 570 compare to its nearest rivals in GPU benchmarks?

A: The RX 570 has an average benchmark score of 28,766, which is nearly identical to the AMD Radeon RX 6800M (28,874, delta -0.4%) and the AMD Radeon R9 M295X (28,580, delta 0.7%). It sits in the 74th percentile of all GPUs tested.

Q: What is the difference in performance between High and Ultra settings?

A: The measured data shows only a 1 FPS difference between High and Ultra at each resolution: 28 vs 27 FPS at 1080p, 23 vs 22 FPS at 1440p, and 17 vs 16 FPS at 4K. This indicates that Ultra settings offer no meaningful performance advantage over High for this GPU.

Q: Can this combination handle 4K gaming in Microsoft Flight Simulator?

A: The data indicates no playable 4K experience. The highest 4K average is 29 FPS at Low settings, with Medium at 22 FPS, High at 17 FPS, and Ultra at 16 FPS. All 4K presets produce averages below 30 FPS, which is generally considered the minimum for smooth flight simulation.

GPU Role

The AMD Radeon RX 570 is a Polaris 20 chip built on a 14 nm process by GlobalFoundries, featuring 2,048 shading units, 128 texture mapping units, and 32 render output units. Its boost clock of 1,244 MHz and base clock of 1,168 MHz, combined with 4 GB of GDDR5 memory on a 256-bit bus, yield a memory bandwidth of 224.0 GB/s. The GPU's FP32 compute performance is 5.095 TFLOPS, with a pixel rate of 39.81 GPixel/s and a texture rate of 159.2 GTexel/s. In benchmark tests, it achieves a 3DMark Steel Nomad DX12 score of 880, a Geekbench Vulkan score of 42,752, and a Geekbench OpenCL score of 32,084, placing it in the 74th percentile of all GPUs.

In Microsoft Flight Simulator, the GPU's role is to render the 3D environment, including terrain, buildings, weather effects, and aircraft models. The measured FPS data shows that the RX 570 is the clear performance bottleneck in this combination. At 1080p Low, the GPU manages 48 FPS, but this drops to 29 FPS at 4K Low — a reduction of nearly 40%. This performance degradation is consistent with a GPU that cannot handle the increased pixel count and texture resolution at higher display resolutions. The 4 GB memory capacity is particularly problematic for Flight Simulator, which streams large amounts of terrain and texture data; the game likely exceeds this memory limit at higher settings, causing constant swapping and frame drops.

The GPU's nearest rivals in benchmark score include the AMD Radeon RX 6800M (delta -0.4%) and the AMD Radeon RX 470 (delta -0.8%), indicating that the RX 570 performs at a level comparable to these other mid-range GPUs. However, in this specific game, even these comparable GPUs would likely face similar constraints due to the memory capacity and bandwidth limitations. The data from the measured FPS at Medium settings (with min/max values of 32/43 FPS at 1080p, 26/35 FPS at 1440p, and 19/26 FPS at 4K) shows that the GPU's frame time consistency degrades as resolution increases, with the spread between minimum and maximum FPS widening from 11 FPS at 1080p to 7 FPS at 4K.

Measured FPS Breakdown

At 1920x1080 resolution, the measured average frame rates are 48 FPS at Low settings, 38 FPS at Medium, 28 FPS at High, and 27 FPS at Ultra. The Medium settings have additional min/max data: 32 FPS minimum and 43 FPS maximum. This resolution provides the highest frame rates of any tested configuration, with Low settings offering a 10 FPS advantage over Medium and a 20 FPS advantage over High. The difference between High and Ultra is minimal at just 1 FPS, suggesting that the GPU cannot effectively utilize the additional visual features of the Ultra preset.

At 2560x1440 resolution, the average frame rates drop to 39 FPS at Low, 30 FPS at Medium, 23 FPS at High, and 22 FPS at Ultra. The Medium settings show a minimum of 26 FPS and a maximum of 35 FPS. The performance gap between Low and Medium at this resolution is 9 FPS, while the gap between High and Ultra remains at 1 FPS. Notably, the 1440p Low setting (39 FPS) outperforms the 1080p High setting (28 FPS) by 11 FPS, indicating that lowering the quality preset at a lower resolution can yield better results than increasing resolution with higher settings.

At 3840x2160 resolution, the average frame rates are 29 FPS at Low, 22 FPS at Medium, 17 FPS at High, and 16 FPS at Ultra. The Medium settings at 4K have a minimum of 19 FPS and a maximum of 26 FPS. This resolution produces the lowest frame rates across all settings, with even Low settings barely exceeding 25 FPS on average. The progression from Low to Medium at 4K costs 7 FPS, while Medium to High costs 5 FPS, and High to Ultra costs 1 FPS — showing that each quality tier has a diminishing impact on performance as the GPU becomes more heavily loaded.

How This Combo Ranks

This combination of the Intel Core Ultra 7 270K Plus and AMD Radeon RX 570 ranks 2,870 out of 2,996 tested combos in Microsoft Flight Simulator, placing it in the bottom 5% of all measured configurations. This rank is surprising given the CPU's high percentile ranking (96th among all CPUs), but it reflects the severe GPU bottleneck that dominates the performance profile. The RX 570's 74th percentile ranking among GPUs does not compensate for its age and limited memory capacity in this game, which is known to be demanding on graphics hardware.

The combo's rank indicates that among the 2,996 combinations tested in this database, only 126 perform worse. This places the system in a position where most other hardware pairings — including those with lower-end CPUs but more modern GPUs — would likely outperform it in Flight Simulator. The data suggests that the CPU's power is effectively wasted in this configuration, as the GPU cannot deliver the frame rates that would showcase the processor's capabilities. For users considering this pairing, the measured results indicate that the GPU is the primary upgrade path; substituting a more powerful GPU while keeping the same CPU would likely move this combo significantly higher in the rankings.

The benchmark results also show that the combo's performance is consistent with the GPU's limitations rather than the CPU's strengths. The fact that the FPS drops by roughly 40% from 1080p to 4K at Low settings, and that Ultra settings provide no meaningful advantage over High, points to a GPU that is saturated at all tested configurations. This ranking serves as a clear illustration that in a GPU-bound game like Microsoft Flight Simulator, the graphics card determines the overall experience, regardless of how capable the processor is.