There are several sub-brands in the Asus VivoBook line: the top-end Pro series offers discrete graphics as a key feature; the S series has wide appeal and comes in a range of colours; and the VivoBook Flip series does the 360-degree trick. Meanwhile, the VivoBook 15 X512, reviewed here, offers up to an 8th generation Intel Core i7 processor and Nvidia discrete graphics, although the entry-level model, at a shade over £400, has a significantly lower spec. There are also 14-inch and 17-inch variants available.
Asus VivoBook 15 X512 review at ZDNet