I am looking into building a computer on a website where they build it for you. The person paying for the computer does not feel safe with me building it. They have the option for either a GeForce® GTX 1080 Ti 11GB GDDR5X (Pascal)[VR Ready] or you can choose GeForce® GTX 1080 Ti Founder's Edition 11GB GDDR5X (Pascal)[VR Ready] (Single Card) {+$49} . What is the difference between these two?