Samsung Semiconductor Incorporated has just announced that the company has started mass producing its GDDR4 memory for graphics cards. GDDR4 is now JEDEC sanctioned and commercially “ready” for video card manufacturers. GDDR4 is the memory successor to GDDR3 -- both of which are unrelated to the JEDEC DDR3 memory standard.
The new GDDR4 memory has a data transfer rate around 2.4Gbps on a 32-bit bus. Samsung is shipping the new 80nm memory in 512MB configurations, which is likely configured in 16x32 layouts. Samsung also claims that this 2.4Gbps GDDR4 showed a 45% power savings when compared to 2.0Gbps GDD3. The reduction in power is clearly a welcomed trend.
