Samsung Announces 8Gbit LPDDR5 DRAM With 6.4Gbps Data Rate; Suitable For 5G, AI-Powered Mobiles


Samsung Electronics has announced the development of industry’s first 10-nanometer class 8-gigabit (Gb) LPDDR5 DRAM. The latest 8Gb LPDDR5 DRAM is the latest addition to the South Korean company’s premium DRAM lineup. It currently includes the 10nm 16Gb GDDR6 DRAM, which has been in volume production since December last year, and 16Gb DDR5 DRAM developed in February this year.

Samsung 10nm 8Gb LPDDR5 DRAM: Significant Performance Jump Compared to Current DRAM Chips

Samsung claims its 8Gb LPDDR5 DRAM can achieve a data rate of up 6,400 megabits per second (Mb/s), which is roughly 1.5 times as fast as current mobile DRAM chips used in the latest 2018 flagship smartphones. Thanks to the impressive boost in data rate, the new LPDDR5 DRAM can send 51.2 GB of data in just a second. That’s equivalent to 14 1080p Full HD video files of 3.7 GB each. This increase in performance is said to have been achieved by doubling the number of memory “banks” or subdivisions within a DRAM cell from eight to sixteen. An advanced, speed-optimized circuit architecture also helps in achieving higher performance.

Samsung 10nm 8Gb LPDDR5 DRAM: Up to 30% Lower Power Consumption

In addition to the impressive performance gains, Samsung is also claiming that the 10nm-class LPDDR5 offers various low-power features that help reduce power consumption by up to 30%. The LPDDR5 chip has been engineered to lower in voltage in accordance with the operating speed of the application processor, when in active mode. Samsung has also configured the chip to avoid overwriting cells with ‘0’ values and added a ‘deep sleep mode’ to cut down power consumption by almost half the ‘idle mode’ of current LPDDR4X DRAM chips. These improvements should allow smartphones featuring these modules to deliver not just improved performance but also extended battery life.

Samsung 10nm 8Gb LPDDR5 DRAM: Designed for 5G and AI-Powered Mobile Applications

Thanks to the improvements in bandwidth and power efficiency, Samsung’s LPDDR5 DRAM chips will power AI and machine learning applications. Samsung’s press release also says that these 10nm-class LPDDR5 chips will be UHD-compatible.

The company will be offering the LPDDR5 DRAM in two bandwidths – 6,400 Mb/s at a 1.1 V operating voltage and 5,500 Mb/s at 1.05V operating voltage. Apart from next-generation flagship smartphones, Samsung is also hoping that manufacturers will use its LPDDR5 DRAM in automotive systems as well. Samsung has completed validation of a prototype 8GB LPDDR5 DRAM package, comprising of eight 8Gb LPDDR5 chips. Samsung hopes to begin mass production of its entire next-generation DRAM lineup (LPDDR5, DDR5, and GDDR6) “in line with the demands of global customers”. However, it might take a while before we start seeing these chips in mobile devices as JEDEC is yet to finalize the LPDDR5 spec.

SOURCESamsung Newsroom

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