Don't buy it. I used laptops for years thinking they were fine. They have issues, namely the screen. Power used for the screen usually does have an impact on the overall sound quality. You will not hear it as a buzz or hash but rather in comparison to a desktop without a built in screen it will sound a bit harder and less natural. I did find a bit of relief when I used the win settings to power off the screen after a fews minutes, but really it does not sound quite as good as a desktop. Differences are small and to many who have not compared the two formats maybe not even relevant. YMMV.
Another big factor is to use whatever you buy as a dedicated audio computer, do not use it to surf the internet while listening.
And ditto to what
@GREQ posted.