Microsoft Flight Simulator

The Intel Core Ultra 9 290K Plus and AMD Radeon RX 6600 XT combo delivers a playable, though not exceptional, experience in Microsoft Flight Simulator. The data positions this pairing at the 31st percentile of tested combinations, with performance heavily dictated by the GPU’s 8 GB VRAM buffer and the simulator’s notorious sensitivity to resolution scaling. While the CPU’s immense multi-threaded muscle ensures the system never bottlenecks at lower settings, the frame rate collapses under the weight of 4K Ultra, revealing a graphics card that is out of its depth in this specific title.

Resolution Scaling

The measured FPS data shows a clear and predictable pattern: performance degrades sharply as resolution increases, but the rate of that degradation is steeper than typical for this GPU class. At 1080p with Low settings, the combo achieves a robust 101 FPS average. Moving to 1440p Low drops this to 81 FPS, a 19.8% reduction, and then to 4K Low at 60 FPS, another 25.9% cut. This linear decline is a classic sign of a GPU-bound scenario, where the render target’s pixel count directly throttles output.

The scaling becomes more brutal when settings are raised. At Ultra, the average frame rate falls from 56 FPS at 1080p to 45 FPS at 1440p (a 19.6% loss) and then plummets to 33 FPS at 4K (a 26.7% loss from 1440p). This indicates that the RX 6600 XT’s compute units and memory bandwidth are being saturated well before the CPU becomes a factor. The delta between 1080p and 4K at Ultra is a 41.1% performance drop, whereas at Low settings the drop is 40.6%, suggesting the limiting factor is consistently the GPU’s fill rate and shader throughput, not the CPU’s ability to feed the scene.

The data points to a system where the CPU headroom is vast. The Intel Core Ultra 9 290K Plus, with its 24 cores and 5.80 GHz boost clock, is never the bottleneck; even at 1080p Low, the 101 FPS ceiling is likely a GPU limit, not a CPU one. The evidence lies in the fact that raising the resolution from 1080p to 1440p at Low only costs 20 FPS, but raising settings from Low to Ultra at 1080p costs 45 FPS. The GPU is the sole arbiter of performance, and the scaling pattern confirms that owners should prioritize lower resolutions or reduced graphical presets to achieve smooth frame rates.

How This Combo Ranks

In the grand database of tested combinations, this pairing ranks 2058 out of 2996 combos for Microsoft Flight Simulator. This 68.7 percentile placement is underwhelming, placing it in the lower third of all systems tested. The ranking is a direct consequence of the GPU’s mid-range standing, as the CPU’s raw power is exceptional but underutilized in a title that is heavily GPU-bound. The combo’s position suggests that while the processor is a top-tier part, the graphics card holds the entire system back in this specific workload.

The ranking becomes more telling when considering the GPU’s individual percentile of 70 against all GPUs. While the RX 6600 XT is not a weak card in general, its 8 GB VRAM and 128-bit memory bus are specific liabilities in Microsoft Flight Simulator, which is known for high VRAM consumption at high detail levels. The combo rank reflects this: the system performs as a sum of its weakest link. The CPU’s percentile of 96 against all CPUs is meaningless here because the game engine does not reward its multi-threading capabilities in a way that translates to higher FPS.

Data from the measured FPS shows that the combo’s best result is 101 FPS at 1080p Low, a score that is respectable but not class-leading. The 4K Ultra result of 33 FPS is below the threshold of smooth playability, and the 1440p Ultra result of 45 FPS is marginal. These figures explain the low ranking; the combo simply cannot sustain high frame rates at the higher settings that players of this simulator typically desire.

GPU Role

The AMD Radeon RX 6600 XT is the decisive component in this pairing, and its specifications reveal why it struggles. The card features 8 GB of GDDR6 memory on a 128-bit bus, yielding a bandwidth of 256.0 GB/s. This is a modest allocation for a game like Microsoft Flight Simulator, which streams vast amounts of terrain and scenery data. The data shows that at 4K Ultra, the average FPS collapses to 33, a figure that strongly suggests the VRAM buffer is being exceeded, forcing the system to rely on slower memory paging.

The GPU’s clock speeds are high, with a boost clock of 2589 MHz and a game clock of 2359 MHz, but these frequencies cannot compensate for the memory limitations. The card’s compute capabilities, rated at 10.60 TFLOPS FP32, are sufficient for 1080p gaming, but the 128-bit memory bus becomes a choke point at higher resolutions. The 4K Medium result of 47 FPS, with a minimum of 40 FPS, shows the card is working hard, but the Ultra preset at 4K drops to 33 FPS, indicating the memory subsystem is overwhelmed.

The GPU’s 32 ray accelerators are irrelevant here, as Microsoft Flight Simulator does not heavily utilize ray tracing. The pixel rate of 165.7 GPixel/s and texture rate of 331.4 GTexel/s are middling figures that align with the measured performance. In essence, the RX 6600 XT is a 1080p-focused card that can handle 1440p with compromises, but it is not built for 4K Ultra in a simulation of this complexity. The data confirms that the GPU is the primary limiter, and its 8 GB VRAM allocation is the most critical weakness.

Measured FPS Breakdown

The measured FPS data provides a comprehensive picture of the combo’s capabilities across three resolutions and four settings presets. At 1080p, the system shows its best performance: 101 FPS on Low, 78 FPS on Medium, 59 FPS on High, and 56 FPS on Ultra. The gap between High and Ultra is a mere 3 FPS, suggesting that the Ultra preset introduces a significant visual load that the GPU cannot translate into a proportional frame rate increase. The 1080p Medium result, with a minimum of 66 FPS and maximum of 90 FPS, shows a playable experience with some frame time variance.

Moving to 1440p, the performance drops are consistent: 81 FPS on Low, 63 FPS on Medium, 47 FPS on High, and 45 FPS on Ultra. The 1440p Medium result shows a minimum of 54 FPS and a maximum of 73 FPS, indicating a smoother experience than the average suggests. However, the High preset at 47 FPS is borderline, and the Ultra preset at 45 FPS is below the 60 FPS target that most players prefer. The 4K results are the most telling: 60 FPS on Low, 47 FPS on Medium, 35 FPS on High, and 33 FPS on Ultra.

The 4K Low result of 60 FPS is the only playable figure at this resolution, and it comes at the cost of visual fidelity. The 4K Medium result of 47 FPS, with a minimum of 40 FPS and maximum of 54 FPS, shows the system struggling to maintain a stable frame rate. The 4K High and Ultra results of 35 and 33 FPS, respectively, are effectively unplayable for a simulator that requires precise control inputs. The data makes it clear that this combo is best suited for 1080p or 1440p gaming, with 4K reserved for Low or Medium settings at best.

FAQ

Q: What is the best resolution to play Microsoft Flight Simulator with this combo?

A: The data shows that 1080p is the most effective resolution, with an average of 78 FPS at Medium and 59 FPS at High. At 1440p, the system manages 63 FPS at Medium, which is acceptable, but 4K is only viable at Low settings, yielding 60 FPS.

Q: Is the CPU or GPU the bottleneck in this system?

A: The GPU is the definitive bottleneck. The Intel Core Ultra 9 290K Plus has a percentile of 96 against all CPUs, while the RX 6600 XT has a percentile of 70. The frame rate drops consistently with resolution increases, indicating GPU limitation, not CPU.

Q: Can this combo handle Ultra settings at 1440p?

A: The measured average FPS at 1440p Ultra is 45 FPS. While this is technically playable, it is below the 60 FPS threshold for smooth gameplay. For a more stable experience, Medium settings at 1440p, with an average of 63 FPS, are recommended.

Q: How much VRAM does the GPU have, and does it matter?

A: The GPU has 8 GB of GDDR6 memory. This is a critical factor, as the 4K Ultra result of 33 FPS suggests the VRAM buffer is insufficient for the game’s high-resolution textures, leading to significant performance degradation.

Q: What is the average FPS at 4K with High settings?

A: The average FPS at 4K High is 35 FPS. This is a low frame rate that will likely result in a stuttery and unsatisfying experience in a flight simulator, which demands smooth camera and control movements.

Q: How does this combo rank compared to all tested systems?

A: This combo ranks 2058 out of 2996 tested combinations for Microsoft Flight Simulator. This places it in the lower third of all systems, indicating that it is not a high-performance pairing for this specific game.

CPU Role

The Intel Core Ultra 9 290K Plus is a powerhouse that is largely wasted in this configuration for Microsoft Flight Simulator. With 24 cores and 24 threads, a base clock of 3.70 GHz and a boost clock of 5.80 GHz, this processor offers immense compute capability. Its Cinebench R23 multi-core score of 51731 and single-core score of 7303 place it in the top 4% of all CPUs, confirming its elite status. However, the game’s engine does not scale well with this level of parallelism, and the measured FPS data shows no signs of CPU limitation.

The CPU’s role is to feed the GPU with draw calls and simulation data, and it does so without breaking a sweat. The fact that the FPS remains identical or drops by the same percentage when moving from 1080p to 4K at the same settings proves that the CPU is not the bottleneck. At 1080p Low, the 101 FPS result is likely the maximum the GPU can output, not the CPU. The PassMark multi-thread score of 60860 and single-thread score of 4823 further demonstrate the CPU’s dominance, but these scores do not translate to higher FPS in this title.

The CPU’s 36 MB of shared L3 cache and 115.2 GB/s memory bandwidth are more than sufficient for the game’s streaming needs. The 3 nm process node and 17,800 million transistors indicate a modern, efficient design, but these attributes are irrelevant when the GPU is the performance ceiling. In this specific pairing, the Ultra 9 290K Plus serves as a stable foundation that never introduces stutter or frame drops due to processing lag, but it cannot boost the RX 6600 XT’s performance. The data suggests that a less powerful CPU would produce nearly identical results, making the Ultra 9 a luxury item in this context.