GDDR

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GDDR

(Graphics DDR) Double data rate (DDR) memory that is used on graphics cards for fast rendering. Although GDDR is based on DDR memory technologies, the versions do not correspond numerically; for example, GDDR3 was based on DDR2 chips and so on. Each generation of GDDR includes different types of enhancements. See DDR and SDRAM.
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2Gbps and data transmission speeds of over 1Gbps, it is the fastest in the industry, making it an ideal solution for high-volume production testing of DDR3-SDRAM, as well as for GDDR3 and GDDR4.
Denali's Databahn DDR DRAM solutions ensure compatibility with all the latest high-speed memory technologies as the configuration process is tightly integrated with Denali's database of memory component specifications, including all the latest SDRAM, DDR1, DDR2, DDR3, GDDR3, GDDR4, GDDR5 and LP-DDR1/2 devices from all major memory vendors and all vendor process nodes.
Unlike GDDR4, which processes data and images using the strobe-and-clock technique, the processing speed of the GDDR5 is much faster because GDDR5 operates with a free-running clock that does not require the data read/write function to be synchronized to the operations of the clock.
With a unique combination of raw GPU power derived from the XBOX 360 Xenos GPU and 1GB of GDDR4 memory, the Diamond Viper Radeon HD 2900 XT 1GB sets the performance benchmark for its class.
The use of a GDDR5-based frame buffer effectively doubles the memory bandwidth relative to the previous generation of GDDR4 memory, significantly enhancing the performance of the ATI Radeon[TM] HD 4870 graphics card.
Optimized exclusively for Apple Mac([R]) Pro systems, the ATI Radeon HD 3870 Mac & PC edition can help drive productivity with built-in 256-bit 512MB GDDR4 frame buffer memory and 320 stream processors to deliver maximum performance for graphics-intensive applications such as 3D modeling, animation and games.
The higher data rates supported by GDDR5 - up to 5x that of GDDR3 and 4x that of GDDR4 - enable more bandwidth over a narrower memory interface, which can translate into superior performance delivered from smaller, more cost-effective chips.
the world leader in advanced memory technology and the leading producer of high-end graphics memory, announced today that it is supplying its fastest GDDR4 graphics memory to TUL Corporation, a leading supplier of AMD graphics cards under the PowerColor brand, for the new PowerColor HD 3870 X2 video card.
Samsung's leading-edge GDDR4 and GDDR3 graphics memory can provide a significant performance boost for systems that use our ATI Radeon HD GPUs.
Because performance drives the high-end, multi-core PC market, our high-performance DDR2 and GDDR4 memory chips are well-positioned to bring out the best in AMD's latest-generation AMD Phenom processor family and ATI Radeon HD 3800 series GPUs," said Kevin Lee, vice president, memory marketing, Samsung Semiconductor, Inc.
The ATI Radeon HD 3850 with 256MB of GDDR3 memory begins at US $179 MSRP and the ATI Radeon HD 3870 with 512MB GDDR4 memory from US $219 MSRP, available from AMD's selected graphics products partners.
The ATI Radeon HD 3800 series will be introduced in two variants at launch, from US $179 MSRP, the ATI Radeon[TM] HD 3850 with 256MB of GDDR3 memory and from US $219 MSRP, the ATI Radeon[TM] HD 3870 with 512MB GDDR4 memory.