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[Discussion] All you need to know about LPDDR4X RAM!

2018-03-02 16:52:28
26501 3

Hello MI Fans,
With the launch of  Redmi Note 5 pro, Xiaomi has also released the LPDDR4X RAM which takes the device performance to another level and also has improved power efficiency by 30%. Let's take a brief look at the LPDDR4X RAM below :


LPDDR4X innovation for mobile devices is moving the global mobile DRAM market, driving smarter, inventive possibilities. Talking about its predecessor LPDDR4 is an optimized solution for diverse applications that need higher performance with lower power consumption within small form factor.It is currently used in flagship and high-end segments of mobile devices only, but its demand will grow fast into lower segments as the entireindustry requires such technical benefits. The LPDDR4X RAM is 15% more efficient as compared to its previous version. Not only LPDDR4X delivers the industry’s highest speed for ultra-slim advanced form factors to support faster multitasking and ultimate user experiences.

LPDDR4X support was first introduced the smartphone world by MediaTek in co-operation with Samsung and SK Hynix, on the Helio P20, while all new Helio products including the X30, P30, P25 and P23 and future Helio products also support the latest memory standard as well.


LPDDR4 is based on the 4th Generation of low power DDR DRAM technology, however, the LPDDR4X is more power efficient which is made to use more low power voltage, allowing the more battery life to our smartphone. It reduces the power consumption of the memory system by 18~20% by cutting output driver power (I/O VDDQ voltage) by 55%, from 1.1 V to 0.6 V. Other features of LPDDR4 remain the same, allowing extreme memory bandwidth to supply the heavy demands of many core CPU and GPU subsystems in modern smartphone SoCs.


Both mobile memory standards are designed to boost memory speed and efficiency for mobile computing devices such as smartphones, tablets, and ultra-thin notebooks.This latest revision of LPDDR4 offers several updates intended to achieve even higher performance over the previous version of the standard, including:

  • Addition of a single-channel die option for smaller applications
  • Addition of new MCP, PoP and IoT packages
  • Additional definition and timing improvements for the highest 4266 Mbps speed grade

The new LPDDR4X standard is an optional extension intended to offer product designers options for further power reduction as well as on-die termination (ODT) flexibility. In LPDDR4X, the I/O supply voltage (VDDQ) is reduced from 1.1 V to 0.6 V. This 40% voltage reduction leads to much lower power usage when sending and receiving data from the memory device, which is particularly beneficial for smartphones and other handheld devices. In addition, LPDDR4X supports easily programmable command bus termination for high memory density systems.


The new LPDDR4X RAM is not only the best for its increase in DRAM performance but also reduce its power consumption due to lower I/O voltages (and come in a smaller form-factor). At the same time, more products within the mainstream application processor lines are supporting the latest-generation memory solutions. The developments, together with advances in DRAM manufacturing processes, have accelerated the pace of market adoption for LPDDR4 and its variant LPDDR4X.

Source: 1 2
Thread credit goes to Iamaditya

2018-03-02 16:52:28
Favorites1 RateRate


Bryan_Fury | from Redmi 5 Plus


awesome tech helping to achieve great miles
2018-03-02 18:41:35

Master Bunny

R1y4z | from Redmi Note 4X


great tech thread,
2018-03-03 22:45:30
good article
2020-07-12 18:28:18
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