I personally don´t know that one but since it´s still on USB 3.0 I doubt it will beat an internal SSD.
If you are thinking about getting a HDD instead, I would definately get a fast internal one. Heck, if you want to go all in, you can also get two HDDs and use them in RAID.
Never the less, you always pay more per GB on a SSD than you do on a HDD.