More about DDR4 at Why migrate to DDR4?
- "Improved capacity and performance scalability:
- Improved power efficiency:
- Improved reliability, availability and serviceability (RAS):
DDR4 SDRAM specification improves RAS is that DDR4 device supports command and address parity error detection, as well as recovery from parity error...supports a connectivity test mode, so that a system controller can test and detect connectivity faults without needing to go through DRAM initialization sequencing...The DDR4 register also provides enhanced RAS over the DDR3 register in that the DDR4 register can be configured to support command blocking upon detection of a parity error.."
It will still be awhile before DDR4 will replace DDR3.
Insightful, timely, and accurate semiconductor consulting.
Semiconductor information and news at - http://www.maltiel-consulting.com/