Dell Home offers the Alienware X51 R3 Intel Skylake Core i3 3.7GHz Desktop PC for $649.99 with free shipping. That's the lowest total price we could find by $130. It features an Intel Core i3-6100 3.7GHz Skylake dual-core processor, 8GB RAM, 1TB 7200 rpm hard drive, DVD burner, 802.11ac wireless, Nvidia GeForce GTX 745 4GB video card, Bluetooth, and Windows 10 Home 64-bit.