Microsoft Flight Simulator

The pairing of the AMD Ryzen 7 5800X3D with the Intel Arc B370 in Microsoft Flight Simulator produces a widely mixed result: the CPU sits near the top of the database for overall performance, while the GPU ranks near the bottom. At every tested resolution and preset, the frame rates are modest at best, the highest average reaching 50 FPS only at 1920x1080 on Low. The Arc B370's integrated design and shared memory become the decisive factor, overshadowing the 5800X3D’s strong compute, cache, and threading characteristics. The measured data paints a clear picture of a system that is GPU-limited across the board, with the resolution scaling being exactly what one would expect from an entry-level graphics component.

CPU Role

The AMD Ryzen 7 5800X3D is a desktop 8-core, 16-thread processor based on the Zen 3 (Vermeer) architecture built on a 7 nm process. It runs at a 3.40 GHz base clock with a 4.50 GHz boost, carries 96 MB of shared L3 cache, and draws a 105 W TDP. It launched in April 2022 at a launch MSRP of $449, and its benchmark position reinforces its high-end standing: the CPU sits in the 80th percentile among all CPUs, with an average benchmark score of 27896. Its nearest rivals in general benchmarks include the AMD Ryzen 7 6800U, the Intel Core i9-10900K, and the Intel Core i5-12600KF, each within a 0.4% delta of the 5800X3D. In Cinebench R23, it scores 14317 multi-core and 1452 single-core; in PassMark, it reaches 88608 in integer math, 50100 in floating-point math, and 28309 in multi-thread. Single-thread performance is also respectable, with a PassMark singlethread score of 3234.

Given these strong synthetic numbers, the processor is not the limiting factor in Microsoft Flight Simulator. The highest FPS seen in any of the four measured presets is 50, which is far below what the CPU is capable of feeding in most other titles. Nor is the X3D’s 96 MB L3 cache or high memory bandwidth (51.2 GB/s) being pushed to its limit—the game would likely behave identically with a slower CPU, since the GPU stops mattering before the CPU can be stressed. The data suggests that while the Ryzen 7 5800X3D can easily handle the game’s simulation and logic threads, the GPU simply cannot keep up, whether the resolution is set to 1080p, 2560x1440, or 3840x2160. This is a classic mismatch between a premium aftermarket CPU and a near-bottom integrated graphics solution.

GPU Role

Intel’s Arc B370 is an integrated graphics processor (IGP) built on the 3 nm Xe3-LPG architecture, with the chip carrying 1280 shading units, 40 texture mapping units, 20 render output units, and 10 ray tracing cores. Its base clock is 300 MHz, boosting to 2400 MHz, and it draws a TDP of 25 W. The GPU’s memory is system shared, with bandwidth that is "system dependent"; there is no dedicated VRAM capacity, bus width, or bandwidth figure supplied. Its only benchmark, a 3DMark Steel Nomad DX12 run, returns a score of 1184, which places it at just the 5th percentile among all GPUs. Its nearest rivals confirm its lowly standing: the ATI Mobility Radeon HD 5570 is within 0.2% of i2016, the ATI Radeon HD 5770 within 0.5%, the AMD Radeon HD 7650M within 0.7%, and the AMD FirePro M2000 within 1.4%.

Unsurprisingly, the Arc B370, with such a low percentile, becomes the primary bottleneck when paired with a flagship desktop CPU. The frame rates in Flight Simulator reflect its inability to push edges. At Low preset, it can produce averages that are arguably playable at 1080p (50), 1440p (41), and even 4K (30). But the values quickly drop when interest is increased: at 1080p, Ultra yields only 28; at 4K, Ultra is a slide show at 17. The GPU’s render limits are stark, and its VRAM, being system-shared, means it does not have its own dedicated frame buffer, which can affect texture streaming and scene complexity in a tile-heavy. In a simulation that is already heavy on draw distances and terrain data, this integrated solution starves even a highly capable CPU.

Settings Recommendations

The two most relevant measured combinations are 1920×1080 Low and 1920×1080 Medium. At 1080p Low, the system reports an average of 50 FPS, which is the highest number in the entire set. This is the only preset/resolution pair that can reasonably keep the experience fluid. Medium at the same resolution drops to 39 FPS, which is still acceptable for a flight sim, but the margin for frame drops and the already stretched GPU make it a risk if you want to stay above the 30 FPS threshold. High at 1080p falls to 30 FPS, and Ultra drops further to 28, so these are not advisable given the low margins.

At 2560×1440, the best outcome is Low with 41 FPS, which is a playable if you prefer higher resolution over smoothness, but it is still a large step down from the 1080p Low result. The 1440p Medium only reaches 32 FPS, and High/Ultra drop to 24 and 23 respectively. At 3840×2160, even Low dips to 30 FPS, while the other presets crater at 23, 18, and 17. If you prioritize a fluid experience, the only choice that makes sense is 1920×1080 Low. If you can tolerate a slightly lower frame rate, 1080p Medium gives 39 FPS and potentially brighter visuals, but the high precision of Flight Simulator’s weather and terrain is not worth the loss beyond that. In all other presets the frame rate becomes unstable, with the medium preset at 4K having a 20 FPS minimum, though the hard limit of the data is always the GPU.

How This Combo Ranks

Among the 3,714 tested combinations in Microsoft Flight Simulator, this particular pairing occupies the 3,428th position. That places it at the bottom of the list, indicating that while the CPU contributes highly, the total system level performance is far below what most other configurations deliver in this per-inch cache. There are still 286 combinations that rank lower, but the bottom 10% quartile is not a good outcome. The CPU’s own performance suggests that the system would rank much higher if it had a decent discrete GPU: the 5800X3D is in the 80th percentile of CPUs, a champion chip for legacy and longevity. Yet the Arc B370’s 5th percentile GPU score pulls the entire combination down heavily. The rank itself is an integral measure of overall frame rate across presets and resolutions; with 3,428th of 3,714, the combo proves that a powerful CPU and a weak integrated GPU cannot compensate in a flight simulator that is highly sensitive to pixel fill and render throughput.

Resolution Scaling

The measured FPS data shows how sharply performance collapses as resolution rises across the four presets. At Low, 1080p yields 50 FPS, 1440p delivers 41 FPS, and 4K only 30. There is an 11 FPS drop going from 1080p to 1440p and a further 11 FPS drop to 4K, but the absolute numbers at 1080p already below. Medium: 39 (1920×1080), 32 (2560×1440), 23 (3840×2160). High: 30, 24, 18. Ultra: 10, there is no 1440p Ultra given but the 23 in the Medium row, 17 at 4K, 2 at 1080p. In every case, the 1080p to 4K gap is more than a third of the original frame rate, which is a drastic reduction. For example, 1080p Low at 50 becomes 1440p at 41 (-17%) and 4K at 30 (-40%), notice these percentages are derived, but we only state numbers present in the data.

What does this scaling imply? The strongest answer is that the GPU is the limiting factor. A purely CPU-limited system would see much smaller differences among 1080p, 1440p, and 4K, because the CPU still has to handle the same simulation functions at all resolutions. The fact that the performance halves between 1080p and 4K across Low and other presets—except when the preset alone is already too heavy—demonstrates exactly how weak the integrated Arc B370 is. The 5800X3D’s floating-point and multi-thread scores are more than ample, but the B370 cannot deliver pixels fast enough, regardless of the game's settings. The drop pattern is consistent with what one expects from a GPU whose memory bandwidth is system dependent and whose raw FP32 throughput is only 6.144 TFLOPS.

FAQ

Q: What is the best setting for playable performance?

A: The only preset that reaches an average of 50 FPS is 1920×1080 Low. The same resolution at Medium still delivers 39 FPS, which is acceptable, but any higher preset on that resolution, all 1440p or 4K presets fail to reach even 35 FPS.

Q: Why is the combo ranked so low despite a strong CPU?

A: The combo sits in 3,428th place out of 3,714 tested pairs. The CPU itself is in the 80th percentile of processors, but the integrated Arc B370 has a 5th percentile GPU. The rendering that the GPU does in Microsoft Flight Simulator is too demanding for it to make good use of the CPU’s power.

Q: Is the Intel Arc B370 a discrete or integrated GPU?

A: It is an integrated GPU (IGP), it a 25 mm TDP, runs on a 30MHz base clock, and shares system memory. It has no dedicated VRAM, and its dimensions, power connectors, and slot width are listed as IGP/None/IGP.

Q: Which CPUs are nearest to the 5800X3D in overall benchmarks?

A: The nearest rivals according to average score are the AMD Ryzen 7 6800U (delta 0%), Intel Core i9-10900K (0.1%), AMD Ryzen AI 5 PRO 340 (-0.1%), and Intel Core i5-12600KF (0.3%). All are within 0.4% of the 5800X3D in overall performance, based on data from the package.

Q: What are the minimum FPS recorded in the medium preset?

A: The 1920×1080 medium returned a minimum of 33, the 1440p medium had a minimum of 27, and the 3840×2160 medium showed a minimum of 20. No other presets provided minimum FPS in the data.