Stefan Mileschin

Micron has released a GDDR6 memory research paper offering insight on what kind of overclocking potential may be possible with next-generation graphics cards. Initial testing showed the memory hitting 16.5Gb/s, but after bypassing the memory array and adding a small boost in I/O supply voltage, Micron managed 20Gb/s. So, just what kind of performance could we expect from a 20 Gb/s clock bump? Well, to put things into perspective, a 256-bit card with such speeds would be able to deliver 640 Gb/s bandwidth, which is close to Titan V's 652.8 Gb/s (HBM2). A 384-bit card would almost hit the 1 Tb/s barrier, with an approximate bandwidth of 960 GB/s surpassing NVIDIA's Tesla V100 solution.

http://www.hardocp.com/news/2018/06/..._gbs_possible/