Microsoft Flight Simulator

Microsoft Flight Simulator with the Intel Core i7-14700K and Intel Arc B390 presents a fascinating case study in system bottlenecking. The data reveals a configuration where a high-end 20-core processor is paired with a graphics solution whose performance profile places it at the 9th percentile among all GPUs. The measured frame rates across resolutions and settings tell a clear story of a system overwhelmingly constrained by its graphics component, yet the CPU’s capabilities still shape the overall experience in specific ways.

Resolution Scaling

The measured FPS data shows a predictable yet steep decline as resolution increases, which is a classic indicator of GPU-bound performance. At 1920x1080 with Low settings, the system achieves an average of 56 FPS. Moving to 2560x1440 drops that average to 45 FPS, a reduction of approximately 19.6%. Pushing further to 3840x2160 yields an average of 33 FPS, which is another 26.7% decrease from the 1440p result. This scaling pattern—where each step up in resolution exacts a significant toll—strongly suggests that the Intel Arc B390 is the limiting factor, as its fill-rate and shading capabilities are being saturated by the increased pixel count.

However, the situation becomes more nuanced when examining higher settings. At Ultra settings, the frame rate is nearly flat across resolutions: 31 FPS at 1080p, 25 FPS at 1440p, and 19 FPS at 4K. The gap between 1080p and 4K at Ultra is only 12 FPS, whereas at Low settings the gap is 23 FPS. This compression of performance at higher settings indicates that the GPU is so heavily loaded by the graphical effects that the resolution’s impact is somewhat masked. The data implies that at Ultra, the Arc B390 is hitting a hard computational wall, regardless of how many pixels are being drawn.

The delta between Low and Ultra at the same resolution further emphasizes this point. At 1080p, dropping from Low to Ultra costs 25 FPS (56 to 31). At 1440p, the cost is 20 FPS (45 to 25). At 4K, the cost is only 14 FPS (33 to 19). These shrinking deltas suggest that at higher resolutions, the GPU is so far beyond its comfort zone that the additional work from Ultra settings has diminishing marginal impact on the already-low frame rates. The system is, in effect, chugging along at its absolute limits, and resolution scaling becomes a secondary factor to the sheer computational load.

GPU Role

The Intel Arc B390 is a peculiar component in this analysis. Its architecture is Xe3-LPG on a 3 nm process, with a base clock of 300 MHz and a boost clock of 2500 MHz. The memory configuration is listed as "System Shared," which means it relies on the host system’s RAM rather than dedicated VRAM. This is a critical detail, as Microsoft Flight Simulator is known for streaming large amounts of terrain and aircraft data, and the lack of dedicated graphics memory could contribute to the performance ceiling observed.

With 1536 shading units, 48 TMUs, and 24 ROPs, the GPU’s raw compute capabilities are modest. The FP32 performance is rated at 7.680 TFLOPS, which is a far cry from what modern discrete graphics cards offer. The 3DMark Steel Nomad DX12 benchmark score of 1482 places it in the 9th percentile of all GPUs, and its nearest rivals in the database are NVIDIA GeForce GT 520MX, GeForce 800M, GT 625 OEM, and GT 710—all entries from a bygone era of low-end mobile and OEM graphics. The deltaPct values against these rivals are minimal, ranging from 1.3% to 2.7% ahead, underscoring that the Arc B390 is operating in a performance class that is simply not suited for demanding flight simulation at high resolutions.

The measured FPS data corroborates this. Even at the lowest settings and resolution (1080p Low), the system only manages 56 FPS. This is a playable number, but it is the absolute best-case scenario. At 4K Ultra, the system drops to 19 FPS, which is below the threshold for a smooth interactive experience. The GPU’s clock speeds are relatively high for its class, but they cannot compensate for the limited shading units and the shared memory architecture. The data suggests that the GPU is the dominant bottleneck in virtually every configuration tested.

CPU Role

In stark contrast to the GPU, the Intel Core i7-14700K is a powerhouse. This 20-core, 28-thread processor from the Raptor Lake Refresh generation boasts a base clock of 3.40 GHz and a boost clock of 5.60 GHz. Its benchmark scores are impressive: a Cinebench R23 multi-core score of 33440.5 and a single-core score of 2160, alongside a Geekbench multi-core score of 20767. The processor sits in the 94th percentile of all CPUs, with its nearest rivals including the AMD Ryzen 9 7950X (deltaPct of -0.2%) and the AMD Ryzen 9 7940HX (deltaPct of -0.7%). This places the i7-14700K at the top tier of desktop processors, with a Passmark multithread score of 52392 and a single-thread score of 4472.

Given this CPU’s immense capability, the measured frame rates are almost certainly not limited by the processor. In Microsoft Flight Simulator, which has a reputation for being single-thread-bound in certain scenarios, the i7-14700K’s single-core performance should be more than adequate. The data implies that the CPU is idling, so to speak, while the GPU struggles to keep up. The 20 cores and 28 threads are far more than this game can utilize at these low frame rates. The CPU’s role here is to ensure that the system does not introduce any additional bottlenecks; it is providing a stable platform for the GPU to reach its limits, which are quite low.

If the GPU were swapped for a more powerful model, the i7-14700K would likely shine, but as tested, the CPU’s contribution is largely theoretical. The benchmark results show that the CPU is in the same performance class as the Ryzen 9 7950X, which is a top-tier gaming and productivity chip. Yet, the measured FPS numbers are indistinguishable from what a far weaker CPU might produce when paired with this GPU. The data suggests that the CPU is a bystander in this configuration, waiting for a graphics card that can actually challenge it.

Measured FPS Breakdown

Examining the exact numbers, the 3840x2160 resolution yields the lowest performance. At High settings, the average FPS is 19, which is identical to the Ultra setting’s 19 FPS. This plateau suggests that the GPU is already saturated at High, and Ultra’s additional effects do not incur a further performance penalty because the hardware is already at its computational limit. The Low setting at 4K produces 33 FPS, and Medium produces 26 FPS with a minimum of 22 FPS and a maximum of 30 FPS.

At 2560x1440, the results improve across the board. Low settings deliver 45 FPS, while High and Ultra deliver 26 FPS and 25 FPS, respectively. The Medium setting comes in at 35 FPS, with a minimum of 30 FPS and a maximum of 40 FPS. The jump from Low to Medium is a 10 FPS drop, but the jump from Medium to High is a 9 FPS drop, indicating that the Medium preset is somewhat of a sweet spot in terms of performance per setting level.

The 1920x1080 resolution provides the only numbers that approach playable levels. Low settings hit 56 FPS, which is the highest average recorded. Medium settings drop to 43 FPS, with a minimum of 37 FPS and a maximum of 50 FPS. High settings yield 33 FPS, and Ultra drops to 31 FPS. The data shows a clear trend: the gap between High and Ultra is minimal at every resolution (2 FPS or less), while the gap between Low and Medium is more substantial (13 FPS at 1080p, 10 FPS at 1440p, and 7 FPS at 4K). This suggests that the Ultra preset is not providing a meaningful visual boost relative to High, given the massive performance cost already incurred.

FAQ

Q: What is the best resolution to play this game with this hardware?

A: The data shows that 1920x1080 is the only resolution where the system achieves an average FPS above 50, and only at Low settings. At 2560x1440 and 3840x2160, the average FPS drops to 45 and 33 respectively at Low, indicating that 1080p is the most viable option for smoother gameplay.

Q: How does the Intel Arc B390 compare to its nearest GPU rivals?

A: The Arc B390 has a 3DMark Steel Nomad score of 1482, which is 1.3% higher than the NVIDIA GeForce GT 520MX (1463), 1.5% higher than the GeForce 800M (1460), 2.5% higher than the GT 625 OEM (1446), and 2.7% higher than the GT 710 (1443). These deltas are very small, placing the Arc B390 in the same performance tier as these older, low-end parts.

Q: Is the Intel Core i7-14700K a bottleneck in this system?

A: No, the data does not indicate a CPU bottleneck. The i7-14700K is in the 94th percentile of all CPUs with a Cinebench R23 multi-core score of 33440.5. The measured FPS is low across all settings, which is consistent with a GPU bottleneck, not a CPU limitation.

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

A: At 1920x1080, Low settings produce an average of 56 FPS, while Ultra settings produce an average of 31 FPS. This represents a 25 FPS drop, or approximately a 44.6% reduction in frame rate when moving from Low to Ultra.

Q: Does the game scale well with resolution at Ultra settings?

A: No, it scales poorly. At Ultra, the average FPS is 31 at 1080p, 25 at 1440p, and 19 at 4K. The difference between 1080p and 4K is only 12 FPS, suggesting that the GPU is so heavily loaded that increasing resolution has a limited additional impact.

Q: How does the CPU’s single-core performance relate to the game’s results?

A: The i7-14700K has a Cinebench R23 single-core score of 2160 and a Passmark single-thread score of 4472. These are strong scores, but the measured FPS does not reflect them because the GPU is the limiting factor. The CPU’s potential is untapped in this configuration.

Settings Recommendations

Based on the measured rows, the optimal settings for a playable experience are at 1920x1080 with the Low preset, which yields an average of 56 FPS. This is the only configuration that breaks the 50 FPS mark. If visual fidelity is a priority, the Medium preset at 1080p offers a compromise at 43 FPS, with a minimum of 37 FPS that stays above the 30 FPS threshold. The data shows that High and Ultra presets provide negligible differences (33 FPS vs 31 FPS at 1080p), so there is no practical reason to select Ultra over High, as the performance cost does not translate into a proportionate frame rate improvement.

At higher resolutions, the recommendation becomes more restrictive. At 2560x1440, the Low preset is the only option that approaches playability at 45 FPS, while Medium drops to 35 FPS. At 3840x2160, even Low settings only reach 33 FPS, which is borderline for a flight simulator that benefits from smooth panning. The data suggests that users should avoid Ultra settings entirely, as the 19 FPS result at both 1080p and 4K is not a viable experience. The Medium preset at 1080p appears to be the best balance of visual quality and performance, as it provides a 6 FPS improvement over High and a 12 FPS improvement over Ultra, while only sacrificing 13 FPS compared to Low.

How This Combo Ranks

The combination of the Intel Core i7-14700K and Intel Arc B390 ranks 2665 out of 2996 tested combos in Microsoft Flight Simulator. This places the system in the bottom 11% of all configurations, which is a stark indicator of the GPU’s limiting role. The CPU is a top-tier part, ranking in the 94th percentile against all CPUs, but its contribution is entirely overshadowed by the graphics card’s 9th percentile standing. The data suggests that this pairing is severely imbalanced; the i7-14700K has more than enough headroom to drive a much more powerful GPU, but the Arc B390 cannot translate that CPU capability into higher frame rates.

The rank of 2665 out of 2996 is a direct consequence of the GPU’s performance class. While the CPU’s nearest rivals include the AMD Ryzen 9 7950X and Ryzen 9 7940HX, which are also high-end parts, the overall combo rank is dragged down by the graphics solution. This indicates that in a game like Microsoft Flight Simulator, which is heavily graphics-dependent at these settings, the GPU choice is the single most important factor in determining the user experience. The measured FPS data confirms this, as no setting combination yields a result that would be considered smooth by modern standards, except for the 1080p Low preset. For users considering this build, the data implies that the CPU is a long-term investment, but the GPU will need to be upgraded to unlock the system’s true potential.