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High Bandwidth Memory (HBM) is a computer memory interface for 3D-stacked synchronous dynamic random-access memory (SDRAM) initially from Samsung, AMD and SK Hynix. It is used in conjunction with high-performance graphics accelerators, network devices, high-performance datacenter AI ASICs, as on-package cache in CPUs[1] and on-package RAM in upcoming CPUs, and FPGAs and in some supercomputers (such as the NEC SX-Aurora TSUBASA and Fujitsu A64FX).[2] The first HBM memory chip was produced by SK Hynix in 2013,[3] and the first devices to use HBM were the AMD Fiji GPUs in 2015.[4][5]
High Bandwidth Memory was adopted by JEDEC as an industry standard in October 2013.[6] The second generation, HBM2, was accepted by JEDEC in January 2016.[7]
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was invoked but never defined (see the help page).Nvidia will be adopting the High Bandwidth Memory (HBM) variant of stacked DRAM that was developed by AMD and Hynix
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