LPDDR4 vs LPDDR5 | Difference between LPDDR4 and LPDDR5
This page compares LPDDR4 vs LPDDR5 and mentions difference between LPDDR4 and LPDDR5.
What is LPDDR ?
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.
Image Courtesy : Synopsys
The figure-1 shows chart of LPDDR generations from LPDDR1 to LPDDR5. Refer benefits or advantages of LPDDR5 DRAM >>.
Difference between LPDDR4 and LPDDR5
Following table mentions difference between LPDDR4 and LPDDR5.
|I/O bus clock frequency (MHz)||1600 MHz, 2133 (For LPDDR-4X)||3200 MHz|
|Prefetch size||16 bit||32/16 bit|
|Data transfer rate or speed in Mbps||3200, 4267 (for LPDDR-4X)||6400|
|Supply voltage||1.1V core, 1.8 V DRAM array, 1.1V/0.6V I/O||0.5V/0.3V I/O, 1.05V/0.9V Core, 1.8 V DRAM array|
|Command or address bus size||6 bits, DDR||?|
Conclusion: The difference between LPDDR4 and LPDDR5 is as follows. LPDDR5 DRAM supports higher data rates and large device sizes at low operating voltages compare to LPDDR4/4X DRAMs.
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