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GDDR4 SDRAM information


This article is about DDR graphics RAM (SGRAM). For non-graphics (dynamic) DDR memory, see DDR4 SDRAM.
GDDR4 SDRAM
Graphics Double Data Rate 4 Synchronous Dynamic Random-Access Memory
Type of RAM
DeveloperJEDEC
TypeSynchronous dynamic random-access memory
Generation4th generation
PredecessorGDDR3 SDRAM
SuccessorGDDR5 SDRAM

GDDR4 SDRAM, an abbreviation for Graphics Double Data Rate 4 Synchronous Dynamic Random-Access Memory, is a type of graphics card memory (SGRAM) specified by the JEDEC Semiconductor Memory Standard.[1][2] It is a rival medium to Rambus's XDR DRAM. GDDR4 is based on DDR3 SDRAM technology and was intended to replace the DDR2-based GDDR3, but it ended up being replaced by GDDR5 within a year.

  1. ^ "Standards & Documents Search: sgram". www.jedec.org. Retrieved 9 September 2013.
  2. ^ "Standards & Documents Search: gddr4". www.jedec.org. Retrieved 9 September 2013.

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GDDR4 SDRAM

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GDDR4 SDRAM, an abbreviation for Graphics Double Data Rate 4 Synchronous Dynamic Random-Access Memory, is a type of graphics card memory (SGRAM) specified...

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GDDR SDRAM

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of 2023[update], GDDR SDRAM has been succeeded by GDDR2, GDDR3, GDDR4, GDDR5, GDDR5X, GDDR6, GDDR6X and GDDR6W. Hynix GDDR SDRAM A Samsung GDDR3 256MBit...

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DDR4 SDRAM

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Double Data Rate 4 Synchronous Dynamic Random-Access Memory (DDR4 SDRAM) is a type of synchronous dynamic random-access memory with a high bandwidth ("double...

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GDDR5 SDRAM

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SDRAM (graphics DDR SDRAM). Like its predecessor, GDDR4, GDDR5 is based on DDR3 SDRAM memory, which has double the data lines compared to DDR2 SDRAM....

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GDDR3 SDRAM

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GDDR3 SDRAM (Graphics Double Data Rate 3 SDRAM) is a type of DDR SDRAM specialized for graphics processing units (GPUs) offering less access latency and...

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Double data rate

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memory chip. DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM and DDR5 SDRAM GDDR SDRAM, GDDR3 SDRAM, GDDR4 SDRAM, GDDR5 SDRAM and GDDR6 SDRAM List of interface...

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Semiconductor memory

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once. GDDR SDRAM (Graphics DDR SDRAM) GDDR2 GDDR3 SDRAM GDDR4 SDRAM GDDR5 SDRAM GDDR6 SDRAM HBM (High Bandwidth Memory) – A development of SDRAM used in...

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Memory refresh

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interval}}={\text{refresh time}}\,/\,{\text{number of rows}}\,} For example, DDR SDRAM has a refresh time of 64 ms and 8,192 rows, so the refresh cycle interval...

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List of interface bit rates

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1 GT/s 64 Gbit/s 8 GB/s GDDR3 64 lanes 625 MHz 2.5 GT/s 159 Gbit/s 19.9 GB/s GDDR4 64 lanes 275 MHz 2.2 GT/s 140.8 Gbit/s 17.6 GB/s GDDR5 64 lanes 625–1125 MHz...

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XDR DRAM

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is based on and succeeds RDRAM. Competing technologies include DDR2 and GDDR4. XDR was designed to be effective in small, high-bandwidth consumer systems...

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UniDIMM

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specification was created to ease the market transition from DDR3 to DDR4 SDRAM. In previous RAM standard transitions, as it was the case when DDR2 was...

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List of AMD graphics processing units

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GDDR3 GDDR4 256 512 384.0 200 $250 (GDDR3) $300 (GDDR4) Radeon HD 2900 XT May 14, 2007 R600 XT 743 828 1000 11.9 11.9 105.6 128.0 GDDR3 GDDR4 512 475...

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Radeon HD 3000 series

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series also featured the industry's first implementation of on-board 128-bit GDDR4 memory. About the time of late March to early April, 2008, AMD renewed the...

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