Reported by Anandtech.com, Samsung's GDDR6 lineup will include both 8Gb and 16Gb capacities and be available in 12, 14 and 16Gbps pin speed, in addition to the previously reported 18Gbps. This means that the lineup will include 48, 56, 64, and 72GB/s of bandwidth per chip/stack.
This will allow Samsung to offer a complete lineup targeting different product categories.
Unfortunately, Samsung did not reveal any details regarding the price and the availability of its new GDDR6 lineup but hopefully, we will see them in the next-generation graphics cards.