HBM was originally developed in tandem by both SK Hynix and AMD to replace GDDR5 as the new standard for bandwidth hungry processors such as GPUs.
HBM will allegedly make its way to AMD’s next generation of Pirate Islands GPUs starting early next year.
The first generation of HBM promises to deliver 4.5X the bandwidth of GDDR5 and a staggering 16 times the bandwidth of DDR3.
The second generation promises to double the bandwidth by doubling the speed from 1Gbps to 2Gbps. While also quadrupling the memory capacity for 4-Hi stacks from 1GB to 4GB.
AMD and SK Hynix will continue to scale this technology well into the mid 2020s. In terms of performance, capacity and power efficiency.
The first graphics products to feature HBM are allegedly going to be AMD’s 20nm Pirate Island Rx 300 series GPUs in 2015. The Rx 300 series is expected to be the first to feature TSMC’s 20nm manufacturing technology a full shrink from the current 28nm technology. And also be the first to be equipped with HBM.
Nvidia will be using 3D stacked memory on its GPUs starting with Pascal in 2016, a full year after AMD. Volta was Nvidia’s scheduled GPU for 2015 that was supposed to use the Hybrid Memory Cube or HMC for short which was s 3D stacked memory technology competing with HBM. However after HMC’s development fell behind the roadmap it put a lot of pressure on Nvidia to look for an alternative technology, which they did.
http://wccftech.com/amd-20nm-r9-390x...er-than-gddr5/
