Get an Alienware Aurora with a GeForce GTX 1080 Ti for $1,395
https://www.pcgamer.com/get-an-alienware-aurora-with-a-geforce-gtx-1080-ti-for-1395/
A GeForce GTX 1080 Ti will run you anywhere from around $980 to $1,400 or more right now, because of the effect that cryptocurrency mining is having the market. It's depressing, though if you're in the market for a prebuilt system, you can get around these inflated prices. Case in point, you can pick up an Alienware Aurora system with a GeForce GTX 1080 Ti tucked inside for less than $1,400.
Start by going here, which brings up a configuration priced at $1,550, down from $1,600. Customize the specs to your liking, then add it to your cart. At checkout, use coupon code TENOFF to shave 10 percent off the price. Assuming you roll with the configuration as presented, you'll be getting this system for $1,395 shipped.