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GDDR SDRAM

Type of memory used on graphics cards

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DDR SGRAM

GDDR was initially known as DDR SGRAM (double data rate synchronous graphics RAM). It was commercially introduced as a 16 Mb memory chip by Samsung Electronics in 1998. Compared to DDR SDRAM which is byte-accessible, GDDR SDRAM is block-accessible.

GDDR2

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GDDR7

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