DDR5 is the hot topic in the world of PC as of now; Theoretically, this technology can provide speeds up to 8400 Mhz. Compared to DDR4, DDR5 further reduces memory module voltage to 1.1 V, thus reducing power consumption. DDR5 modules can incorporate onboard voltage regulators to reach higher speeds; as this will increase cost, it is expected to be implemented only on server-grade and possibly high-end consumer modules. DDR5 supports a speed of 51.2 GB/s per module[9] and 2 memory channels per module. SK Hynix is making big plans around DDR5, including an unprecedented effort to ramp the standard clock speed much higher than we typically see in a single RAM generation. Currently, a dual-channel DDR4-3200 solution offers up to 51.7GB/s of memory bandwidth. A dual-channel DDR5-8400 solution would push this to a massive 134.4GB/s of RAM per second.
To achieve such speeds, several changes to DDR5 are required compared with DDR4, and Hynix has released information on how it plans to achieve these goals. SK Hynix already has DDR5-6400 in its sights, which are built upon its second-generation 10nm class fabrication node. SK Hynix has now listed that it plans to develop up to DDR5-8400. Similar in methodology to its DDR5-6400 DRAM, DDR5-8400 requires much more forethought and application. What's interesting about SK Hynix's DDR5-8400 is the jump in memory banks, with DDR5-8400 using 32 banks, with 8 bank groups.
The main feature that will exhilarate most of the consumers that ECC will be built onto the Die itself. Although this is not a new feature as it was introduced, DDR4 but it was mainly active in the Server side of things. This is expected to reduce overall costs, with ECC recording any defects present and sends the error count to the host. This is designed to improve transparency with the aim of providing enhanced reliability
Head of DRAM Product Planning at SK Hynix, Sungsoo Ryu stated that:
"In the 4th Industrial Revolution, which is represented by 5G, autonomous vehicle, AI, augmented reality (AR), virtual reality (VR), big data, and other applications, DDR5 DRAM can be utilized for next-gen high-performance computing and AI-based data analysis".
-Sudev Atgur
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