HBM memory is making a lot of noise, and it will be a companion that will be with us for a long time, especially in the HPC sector, but also in the PC. And the bandwidth and latency of volatile memory have become essential factors when it comes to improving the performance of processing units such as the CPU and GPU . And that is what this memory comes to resolve. HBM stands for High Bandwidth Memory . This type of memory is a kind of volatile random access memory, that is, a RAM. As such, it can be used to feed data and instructions to processing units such as the CPU or GPU.
The secrets of the HBM
As we have said, HBM is a type of memory that achieves greater transmission bandwidth without increasing its size. In addition, it can have greater efficiency than conventional DDR and GDDR memories. To achieve this, the HBM packaging consists of several layers of DRAM chips . That is, it is a D packaging with interconnections between the chips thanks to TSV (Through Silicon Via) and microbump Mexico Email List technology, which consists of digging pillars into the chips to interconnect other floors, also using microballs similar to those of a BGA. . In addition to the HBM memory packaging, a layer will also be, which is the bottom one, with a logic chip that is responsible for controlling this memory. This control layer will then interface with the CPU or GPU differently than it does with GDDR or DDR. And, instead of being on the PCB, it is normally using an interposer.
Disadvantages of HBM
AMD started the development of this HBM memory in for the first time. The original intention of this company was to launch this memory for the. Consumer market, as it did with some models of graphics cards. Instead, AMD has gone back, trying to China Phone Number List resolve some technical issues with memory chip stacking. And thanks to partners such as SK Hynix, Micro Technologies, or Samsung, great progress has been made in this regard. D packaging is already quite common, we have seen it in AMD Ryzen with D V-Cache, for example, and now the technology is more mature . In fact, the HBM chips manufactur by SK Hynix in were a very important step. To such an extent that it would be adopted as a JEDEC standard, JESD In , this HBM memory was for the first time in the consumer market in the AMD Radeon R Fury X graphics card . And, the following year, Samsung began mass producing the new HBM for the NVIDIA Tesla P for HPC.
