RAM Bandwidth Calculator

The Transfer Rate (MT/s) is double the Clock Rate (MHz).
The bandwidth (MB/s) is 8x the Transfer Rate (MT/S).
In a "DDR4-2400" label, the transfer rate is specified as 2400 MT/s
In the "PC-19200" label, the bandwidth is specified as 19200 MB/s.
TODO: The "channels" is a bit wrong for LPDDR - it more just the bus width. Also the PC label is never used.

Comparison of RAM technologies
	LPDDR5X	DDR5	LPDDR5	DDR4
Year	2021	2021	2019	2014
Channels	2	2	2	2
Clock Rate	4267	2800	3200	1200
Transfer Rate
PC Label
Bandwidth

Last Updated: July 2025