Cadence and Micron test Prototype 7nm DDR5 DRAM at 4400 MT/s
he test chip was fabricated in TSMC's 7nm process, and contains both the controller and PHY. The two chips work together successfully achieving 4400 megatransfers per second, 37.5% faster than the fastest commercially available DDR4 memory.
DDR5 Summary (not final)
- supply voltage will drop from 1.2V for DDR4 to 1.1V for DDR5
data rates will run up to 6.4 Gbps eventually, 4.4Gbps initially
on-die termination (pulled-up VDDQ) will be available for address buses, not just data buses