SK Hynix has developed 20nm-class 4Gb graphics DDR3 DRAM, designed specifically for notebooks requiring low-power consumption.

The new 4Gb GDDR3, built using Hynix' 20nm-class technology, runs at 1.35V - 30% less power than the previous 30nm-class 1.5V product, according to the vendor. While operating at low-voltage levels, the new chip delivers desktop-level graphics performance.

The new Hynix 4Gb GDDR3 also operates at the speed of 1.8Gbps and processes up to 3.6GB of data per second with a 16-bit I/O.

Hynix expects to enter the mass production of its 20nm-class 4Gb GDDR3 chips in the fourth quarter of 2012.