For for a first-time 'gaming laptop' it's a great choice! You'll be able to play most AAA games available today, e.g. Tomb Raider, Metal Gear Solid V, GTA V and Batman: Arkham Knight, at high-maybe-ultra settings.
And if you can find another $40 (under the couch, say) I'd recommend the extra 8GB RAM option on your Amazon link. That should give you access to even the newest AAA titles, e.g. The Division, not at ultra/extreme but certainly medium-to-high settings. More and more games, e.g. Planet Coaster and Obduction, recommend 16GBs of RAM.
Bear in mind, though, that despite its GPU the Dell is not an actual gaming machine and there will be overheating issues and fan noise. You can't expect to do heavy gaming, i.e. 4-5 hours daily. The Inspiron is fundamentally a business/productivity machine, which is borne out by the internal design; it may come with a great GPU but the heat dissipation and fan setup clearly points to a (very capable) business multi-tasker.
Cheers,
GreyCatz.
PS. The Dell also comes with an IPS panel which makes it much more useable for everyday, non-gaming usage.