According to reports, Micron has revolutionized the data transmission mode of memory by applying innovative signal transmission technology-four-level pulse amplitude modulation (PAM4). GDDR6X adopts PAM4 multi-level signal technology to achieve faster data transmission and double the I/O data rate.
Previously, the video memory bandwidth was up to 64 GB/s. The traditional binary standard relied on two-level signal transmission coded as 1s or 0s data, and one bit of data could be transmitted per cycle. Micron’s new PAM4 technology uses four different levels to simultaneously input and output two bits of data to the memory.
As a result, Micron's GDDR6X significantly increased the memory bandwidth of a single particle to 84 GB/s, thereby increasing the system bandwidth to an unimaginable 1TB/s before.
Currently, Micron offers GDDR6X memory with a density of 8 Gb, with speeds ranging from 19 to 21 Gb/s. The 16 Gb GDDR6X will be launched in 2021.
It is reported that Micron GDDR6X has cooperated with NVIDIA to equip GDDR6X in the new NVIDIA GeForce RTX 3090 and GeForce RTX 3080 GPUs.
The breakthrough speed of GDDR6X provides gamers with the highest frame rate and high resolution for instant rendering, bringing users a highly realistic and immersive experience without delay. GDDR6X works with Nvidia’s GeForce RTX 3090 and GeForce RTX 3080 GPUs to provide ultra-high bandwidth performance, improve real-time ray tracing and neural network graphics processing, and create a realistic and immersive virtual world experience for computer games.
In addition, based on the previous collaboration with NVIDIA in GeForce RTX graphics products (equipped with GDDR6), Micron has innovated the memory/GPU interface of GDDR6X and enhanced the performance of complex graphics workloads in next-generation gaming applications.
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