Newegg via eBay offers the Gigabyte GeForce GTX 1080 8GB 256-bit GDDR5X PCI Express 3.0 Video Card for an in-cart price of $429.99 with free shipping. That's the lowest price we could find by $69. Features include a 1.6GHz variable core clock, 10GHz memory clock, support for DirectX 12 and OpenGL 4.5, and HDMI, DVI, and DisplayPort inputs.