Samsung Electronics Co Ltd has announce its GDDR4 (graphic double data rate, version 4) high-speed graphics memory chip is being used in both the 1GB ATI Radeon HD 2900 XT and the 256MB ATI Radeon HD 2600 XT graphics processing cards. The 1GB card is claimed to have the widest bus in the industry designed for full-performance, highly dynamic range (HDR) rendering in PCs.
Built with 80nm process technology, the 512Mb GDDR4-based graphics cards provide 140.8GB per second performance -- 25% faster than the 700MHz GDDR3 graphics memory, the most common graphics device in use today.
GDDR4 processes video images in desktop PCs, notebooks and workstations at high speeds, simultaneously moving large volumes for high-definition, or other high-resolution, video such as next-generation Blue-ray and full HD level video images.
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