Spent months configuring multiple machines on ibuypower and cyberpowers web site to come up with the ultimate machine.  Also read all the reviews posted by pcgamer, techradar and tomsguide... all reputable resources.  I did my homework but ultimately selected this prebuilt after using the Userbechmark website.  This machine scored extremely high even though its not the newest processor, motherboard, or video card.  I ran the benchmark once I received the machine and verified I bought a UFO.  I haven't overclocked and am running it as delivered for now.  Very happy with the buy.  I only gave it a 4 because of the limited number of USB ports ( I have multiple external drives for storage) and the need for an external Blu-ray/DVD.  Great machine for a great value.