Micron Technology today announced that it has begun mass production of 16Gb GDDR6X memory chips, which are already used in the Nvidia GeForce RTX 3090 Ti graphics cards. The latest GDDR6X memory, which so far only Micron is supplying, is twice as dense as its predecessor and 15% better in performance. The new memory operates at the industry’s maximum data transfer rate of up to 21 Gbps. In the future, there are plans to release GDDR6X memory supporting speeds up to 24 Gbit/s.
The high speed is made possible by Micron’s development of PAM4 signaling technology. The new memory’s high bandwidth makes it the optimal choice for graphics applications that require exceptionally fast memory with low power consumption. Micron emphasizes that no other manufacturer yet delivers such memory.