Key Takeaways
1. The Intel Arc B390 shows a significant lead in synthetic benchmarks, outperforming the RTX 4050 by 30 to 40 percent in tests like 3DMark.
2. In real-world gaming scenarios, the performance gap between the Arc B390 and RTX 4050 is minimal, with only a 5 to 15 percent advantage for the Arc B390 in titles such as Cyberpunk 2077.
3. Older games like GTA V and X-Plane tend to perform better on the RTX 4050 due to its larger size and higher power limits.
4. In non-gaming tasks, the RTX 4050 outperforms the Arc B390 significantly in Blender benchmarks, achieving more than double the performance with Nvidia OptiX.
5. The Arc B390 excels in power efficiency, using only 52 W for demanding tasks like gaming, compared to 95 W for the RTX 4050, making it a more efficient option overall.
Excitement is soaring this month for Intel’s latest Arc B390, especially after CES 2026 and the recent first reviews of laptops using the integrated GPU. Bold claims about performance that rival or even exceed the GeForce RTX 4050 are tempting, yet how do these two GPUs truly stack up when comparing actual laptop models?
Benchmark Comparisons
The benchmarks below evaluate the 2026 Dell XPS 14, which has a Core Ultra X7 358H, against the 2024 Dell XPS 14 that features the RTX 4050. In synthetic testing, like 3DMark, the newer Dell with the Arc B390 shows a lead of 30 to 40 percent, indicating a clear edge in raw graphics capability. Claims of performance “better than RTX 4050” likely come from these 3DMark outcomes.
Real-World Gaming Performance
However, when it comes to real gaming scenarios, the gap between the Arc B390 and RTX 4050 nearly disappears. Titles such as Cyberpunk 2077 and Baldur’s Gate 3 exhibit only a 5 to 15 percent speed increase on average for the Arc B390 XPS 14 compared to the RTX 4050 XPS 14, while older games like GTA V and X-Plane tend to perform better on the RTX 4050 XPS 14. Moreover, numerous laptops featuring the RTX 4050 can outperform the Arc B390 XPS 14 due to their larger size and higher power limits. The performance advantage for Nvidia would increase even more with any applied DLSS versus XESS enhancements.
Blender and Power Efficiency
In non-gaming tasks, Blender benchmarks consistently show the RTX 4050 leading by margins greater than 2x when comparing Nvidia OptiX with OneAPI.
Nevertheless, the Arc B390’s main strength is its low power requirement while still delivering high performance-per-watt. For instance, playing Cyberpunk 2077 on the Arc B390 XPS 14 only uses 52 W, compared to 95 W on the RTX 4050-powered Lenovo Yoga Pro 7 14. The Lenovo would only achieve about 20 percent higher frame rates before any AI enhancements are applied, making Intel’s iGPU a more efficient choice.










