Gaming. Your Gamerscore is made up of all of the points you earn for getting achievements in Xbox One and Xbox 360 games. Every Xbox game has a particular number of achievements associated with it, and within each achievement is a particular point value.
Thereof, how much money is 1600 Microsoft points?
Microsoft Points were sold online and through gift cards at retail outlets. In North America, points could only be purchased in 400 point increments. In the United States, the minimum 400 points cost $5 to purchase, 800 cost $10, while 1600 cost $20.
What are the credits on Xbox for?
Instead of Microsoft Points, Xbox Live Rewards members can now earn Rewards Credits, which are converted into your local currency and deposited as cash directly into your Microsoft account. I don't see a posted Credits conversion rate.
What is the Gamerscore for?
For those unfamiliar with the Xbox gamerscore system: it's a cumulative score of all the “Achievements” you've earned across any and all Xbox 360/Xbox One games. Each game has different challenges (some much harder than others), each worth a set number of points.