Samsung rolls out GDDR4 memory

— 2:02 PM on July 5, 2006

GDDR4 memory is rolling off Samsung's production lines, and the company has announced its first volume shipments of the new memory type, The Register reports. Samsung's GDDR4 is clocked at a whopping "effective" speed of 2.4 GHz, yielding a total 9.6 GB/s of bandwidth per memory chip. In contrast, GDDR3 memory found in NVIDIA and ATI's top-of-the-line graphics cards runs between 1.55 GHz and 1.7 GHz and offers less than 7 GB/s of bandwidth per chip. Assuming a 256-bit memory bus, Samsung's new GDDR4 could provide a maximum of 76.8 GB/s of memory bandwidth for a single card—considerably more than the 49.6-54.4 GB/s available to today's fastest GDDR3-powered models.

According to some reports, ATI plans to use GDDR4 memory in a shipping graphics card as early as this fall. An R580+ graphics chip will reportedly show up in a GDDR4-powered successor to the Radeon X1900 XTX, which The Inquirer claims will be dubbed Radeon X1950 XTX.

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