You can also now top it off at 2TB instead of just 1TB with Surface Book 2. The SSD used for storage is also now faster, as the benchmarks below reveal. One USB Type-C w/ video, power in/out and USB 3.1 (Gen2) data Two Surface Connect ports (1 in tablet, 1 in keyboard base) One USB Type-C w/ video, power in/out and USB 3.1 (Gen1) data The Marvel Wi-Fi hardware was a problem in the past with instability issues for some users. But since Intel is the predominant maker of Wi-Fi 6 laptop chips, it is an excellent move away from Microsoft's previous supplier Marvel. Wi-Fi 6 (ax) is standard these days in most new laptops, so it being here is not remarkable. With Surface Book 3 15-inch, 16GB is now the lowest model, and it is only available in one of the four models, with the other three being 32GB configurations.

Surface Book 2 could only be purchased with 16GB of RAM max, but developers and engineers demanded more. The new 127-watt charger fixes this problem. When maxing out Surface Book 2 for CPU and GPU, say during video gaming, it was possible to drain the battery while plugged into the wall. The larger charger - now at 127 watts versus just 102 previously - may seem minor, but it matters a lot. Intel Wi-Fi 6 + Bluetooth 5.0 (instead of Marvel)

Surface book 3 i7