A:AnswerAn answer above says this unit has a 460 watt power supply. If so, that power supply is not recommended for running dual 1070's. You should be able to buy a 750 watt unit for under $100 though that will work just fine. Also make sure the PC has another PCIe slot and that the motherboard supports SLI
A:AnswerI have been doing a fair amount of research on prebuilt rigs and from that I say this system is highly upgradable. You can add whatever you want provided you research and make sure it fits and compatible. Alienware doesn’t sell kits to upgrade however so do your research.
A:AnswerDepending on settings in the game and what monitor you are using you can get outstanding fps. I have 144hz monitor and fortnite runs at 144fps flawlessly. YouTube is a. Big help to getting good fps in most games. Highly recommend this PC