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Difference between LPDDR1 LPDDR2 LPDDR3 LPDDR4 LPDDR5

This page compares LPDDR1 vs LPDDR2 vs LPDDR3 vs LPDDR4 vs LPDDR5 and mentions difference between LPDDR1, LPDDR2, LPDDR3, LPDDR4 and LPDDR5 with respect to clock frequency, speed, bus size, supply voltage and prefetch size.

What is LPDDR ?

Introduction:
The LPDDR5 is low power volatile (DRAM) device memory standard defined for storage of code, applications and data. It is SDRAM (Synchronous Dynamic Random Access Memory) which consumes less power. It is targetted for use in mobile devices such as phones, tablets and laptops.

LPDDR Generations Chart
Image Courtesy : Synopsys

The figure-1 shows chart of LPDDR generations from LPDDR1 to LPDDR5. Refer benefits or advantages of LPDDR5 DRAM >>.

Difference between LPDDR1 LPDDR2 LPDDR3 LPDDR4 LPDDR5

Following table mentions difference between LPDDR1, LPDDR2, LPDDR3, LPDDR4 and LPDDR5.

Specifications LPDDR1 LPDDR2 LPDDR3 LPDDR4 LPDDR5
I/O bus clock frequency (MHz) 200 MHz, 266.7 (For LPDDR-1E) 400 MHz, 533.3 (For LPDDR-2E) 800 MHz, 1067 (For LPDDR-3E) 1600 MHz, 2133 (For LPDDR-4X) 3200 MHz
Prefetch size 2 bit 4/2 bit 8 bit 16 bit 32/16 bit
Data transfer rate or speed in Mbps 400, 533.3 (for LPDDR-1E) 800, 1067 (for LPDDR-2E) 1600, 2133 (for LPDDR-3E) 3200, 4267 (for LPDDR-4X) 6400
Supply voltage 1.8 V 1.2, 1.8 V 1.2, 1.8 V 1.1, 1.8 V 0.5, 1.05, 1.8 V
Command or address bus size 19 bits, SDR 10 bits, DDR 10 bits, DDR 6 bits, DDR DDR

Also refer advantages or benefits of UFS storage interface over e-MMC.



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