HBM4 maintains a design with vertically furnished drama layers, but offers improvements. The data transfer rate reaches 8 GB/s and the yield to 2 TB/S due to the 2048 bit interface. The number of channels is increased from 16 to 32, which accelerates data processing and increases the flexibility of memory.
The new standard provides support for various voltage levels, including VDDQ options between 0.7 and 0.9 V and VDDC. This allows you to increase energy efficiency depending on certain tasks and equipment requirements. HBM4 is also compatible with the previous generation HBM3 controllers that facilitate the transition to the new memory.
Among the new functions, the renovation management, which helps to protect the memory from faults, is directed. The standard allows the use of cups at different heights between 4 to 16 layers with a capacity of 24 or 32 gigabytes.
Source: Ferra
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