Graph sintax

What is the difference between using the graph syntax instead using the
classic one in the json ld? Doest it have some advantages?

Classic
[
  {
    "@context": "http://schema.org",
    "@type": "WebSite",
    ...
  },
  {
    "@context": "http://schema.org",
    "@type": "Article",
    ...
  }
]


Graph
{
"@context": "https://schema.org",
    "@graph": [
        {
            "@type": "WebSite",
            ...
        },
        {
            "@type": "WebPage",
            ...
        }
    ]
}

Greetings