Two nicely built i7 quad core 8 thread desktop towers: Dell Xps Studio, 8 thread i7 at 2.93GHz per core, 8 gb ram, 750 GB Hdd Win 10. 550$ Gateway FX series Full Atx 8 thread i7 @ 3.6Ghz per core, 8 GB ram, 500 GB Hdd, Win 7 Pro. 550$ Both of these quad core machines are tested, work excellent and are very clean, ready for anything. Both can be upgraded in 10 minutes to play your favorite games and/or run VR. A great deal for either machine. Choose which one would be best for you as if you see 2 computers in this ad, they are both still available. :-)