Samsung has started mass production of GDDR6 memory chips. They are
bound for next-generation graphics cards, consoles, servers and other
applications where a high bandwidth is required.
These chips are built on a 10nm process and have a capacity of 16
gigabits – a major improvement over Samsung’s 20nm 8 gigabit GDDR5 chips
(which went into mass production 3 years ago). Also, a 35% reduction in
power use is achieved since the new chips operate on 1.35V instead of
1.55V.
A system with a 384-bit memory bus can achieve 864 GB/s bandwidth,
beating HBM2 memory used in some current high-end GPUs. A cheaper (and
lower power) 256-bit bus can do 576 GB/s, which puts it slightly ahead
of a 384-bit system using the older GDDR5 chips.
It’s not yet clear when the first GDDR6-based products will hit the
shelves, but Samsung believes they will be quickly adopted for virtual
reality, artificial intelligence, 8K video processing and other
demanding tasks.
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