Massdrop offers the Gigabyte GeForce Black Edition GTX 1080 Ti 11GB 352-bit PCI Express 3.0 Video Card in Black for $659.99 with free shipping. That's the lowest price we could find by $50. It features an 11,010MHz effective memory clock, 1,518MHz core clock, Windforce 3X copper cooling, OpenGL 4.5 and DirectX 12 support, and DisplayPort, HDMI, and DVI inputs. Deal ends August 24.

Note: It's expected to ship on September 21.