4 ms·
Wait, how is LPDDR5 6 times faster than LPDDR4X? I thought the bandwidth of DDR5 is roughly 2x that of DDR4 - and that is assuming you run the DDR5 at it's high
by gautamcgoel 5y ago
Wait, how is LPDDR5 6 times faster than LPDDR4X? I thought the bandwidth of DDR5 is roughly 2x that of DDR4 - and that is assuming you run the DDR5 at it's highest rated clockspeed, which no ones does yet since the technology is not fully mature.
- rasz 5y agoI think he meant whole systems. M1 Pro comes with 256bit bus (2 custom LPDDR5 chips) and 200 GB/s, M1 Max with 512 (4 custom LPDDR5 chips) and 400 GB/s. M1 is 128bit bus (2 custom LPDDR4 chips) and 60 GB/s? 400/60 = ~6