I'm looking for a laptop the following should it have
-Windows 10
-a good graphics card
-4 GB Ram
-Camera
good sound quality
The rest does not matter but about 400 euro
Just have a look at the models with AMD Mobile Ryzen.
Example: Lenovo Think Pad E595
I doubt you can get a good good GPU for 400 euro.
That's why I ask yes🧐
With only 4Gb RAM you don't need a good graphics card either.
With his budget, you won't find anything useful here.
What do you mean by a good graphics card for 400 euro? You won't be able to play AAA games with it!
However, the AMD APUs are also quite powerful. As @Silberfan said, check out the Ryzen Mobile range.