Samsungs utveckling av GDDR5 minne har nått en ny milstolpe då man tillkännagivigt att man nu börjar masstillverka nya 50 nanometer kretsar som har en maximal dataöverföringshastighet på 7.0Gbps. De nya minneschipen ska arbeta vid en frekvens om 1750MHz, vilket ger en effektiv klockfrekvens på 7.0GHz, vilket kan jämföras med de GDDR5-chip som används av de flesta Radeon HD 4800-grafikkort i dagsläget på närmare 4.0GHz. Man har även lyckats sänka spänningen till 1.35V vilket drar ner strömförbrukningen. Med en 512-bits minnesbuss skulle dessa kretsar kunna ge en minnesbandbredd på hisskeliga 448GB/s. Chipen lär dyka upp i grafikkort senare under året.
Läs mer i Samsungs pressmeddelande;
SAMSUNG Begins Mass Production of High-performance GDDR5 Memory Using 50-nm Class Process Technology
Seoul, Korea – February 12, 2009 : Samsung Electronics Co., Ltd., the world leader in advanced memory technology and the leading producer of high-end graphics memory, announced today that it has begun mass producing GDDR5 graphics memory using 50-nanometer class process technology.
“Our early 2009 introduction of GDDR5 chips will help us to meet the growing demand for higher performance graphics memory in PCs, graphic cards and game consoles,” said Mueez Deen, director, mobile and graphics memory, Samsung Semiconductor, Inc. “Because GDDR5 is the fastest and highest performing memory in the world, we’re able to improve the gaming experience with it across all platforms,” he added
Designed to support a maximum data transfer speed of 7.0Gbps, Samsung’s GDDR5 will render more life-like (3D) imaging with a maximum 28GB/s bandwidth, which is more than twice that of the previous fastest graphics memory bandwidth of 12.8GB/s for GDDR4. The ultra-fast processing speed is equivalent to transferring nineteen 1.5GB DVD resolution movies in one second. The high image processing speed of the GDDR5 also supports the latest data formats (Blu-ray and full HD).
Unlike GDDR4, which processes data and images using the strobe-and-clock technique, the processing speed of the GDDR5 is much faster because it operates with a free-running clock that does not require the data read/write function to be synchronized to the operations of the clock.
,br /> By adopting 50nm class technology, Samsung expects production efficiency to rise 100 percent over 60nm class technology. In addition, Samsung’s GDDR5 operates at 1.35 volts (V), which represents a 20 percent reduction in power consumption compared to the 1.8V at which GDDR4 devices operate.
Now available in a 32Megabit (Mb) x32 configuration and also configurable as a 64Mb x16 device, Samsung expects GDDR5 to account for over 20 percent of the total graphic memory market in 2009. The company also said it plans to expand the 50-nm process technology throughout its graphics memory line-up this year.
