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Samsung begins 20nm High Bandwidth Memory 2 production
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256GB/s with four 8Gb stacks, seven-fold increase over GDDR5

Roughly six months ago, AMD launched the first graphics cards packed with first-generation High Bandwidth Memory (HBM). Today, Samsung has just announced production of the industry’s first 20nm 4GB DRAM package based on second-generation High Bandwidth Memory 2 (HBM2).