For Prime members only, Amazon offers the offers the Sapphire Nitro Rx Radeon RX 480 4GB 256-bit GDDR5 PCI-Express 3.0 Video Card, model no. 11260-13-20G, for $179.99. Redeem this $15 mail-in rebate to cut the price to $164.99. With free shipping, that's the lowest total price we could find by $5. Features include a 1.2GHz core clock, 1.8GHz memory clock, support for DirectX 12 and OpenGL 4.5, and DisplayPort, DVI, and HDMI inputs. Rebate expires February 28.
Note that this item ships in two to five weeks.