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ddr3 [2016/05/30 18:53] gongyu [**DDR3L and DDR3U extensions**] |
ddr3 [2016/05/30 18:53] gongyu [Standards with similar names] |
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====Standards with similar names==== | ====Standards with similar names==== | ||
- | ===**LPDDR3**=== | + | ===LPDDR3=== |
LPDDR3 (Low Power DDR3) is a mobile DDR SDRAM standard, designed for mobile computing, and shares little in common with DDR3 memory - except maybe the maximum data rate.[21] | LPDDR3 (Low Power DDR3) is a mobile DDR SDRAM standard, designed for mobile computing, and shares little in common with DDR3 memory - except maybe the maximum data rate.[21] | ||
- | ===**GDDR3**=== | + | ===GDDR3=== |
GDDR3 (Graphics DDR3) memory, sometimes incorrectly referred to as "DDR3" because of its similar name, is an entirely different SDRAM standard designed for use in graphics cards. | GDDR3 (Graphics DDR3) memory, sometimes incorrectly referred to as "DDR3" because of its similar name, is an entirely different SDRAM standard designed for use in graphics cards. | ||
- | ===**Serial presence detect**=== | + | ===Serial presence detect=== |
DDR3 memory utilises serial presence detect.[22] Serial presence detect (SPD) is a standardized way to automatically access information about a computer memory module, using a serial interface. It is typically used during the power-on self-test for automatic configuration of memory modules. | DDR3 memory utilises serial presence detect.[22] Serial presence detect (SPD) is a standardized way to automatically access information about a computer memory module, using a serial interface. It is typically used during the power-on self-test for automatic configuration of memory modules. | ||
- | ===**Release 4**=== | + | ===Release 4=== |
Release 4 of the DDR3 Serial Presence Detect (SPD) document (SPD4_01_02_11) adds support for Load Reduction DIMMs and also for 16b-SO-DIMMs and 32b-SO-DIMMs. | Release 4 of the DDR3 Serial Presence Detect (SPD) document (SPD4_01_02_11) adds support for Load Reduction DIMMs and also for 16b-SO-DIMMs and 32b-SO-DIMMs. | ||
JEDEC Solid State Technology Association announced the publication of Release 4 of the DDR3 Serial Presence Detect (SPD) document on September 1, 2011.[23] | JEDEC Solid State Technology Association announced the publication of Release 4 of the DDR3 Serial Presence Detect (SPD) document on September 1, 2011.[23] | ||
- | ===**XMP extension**=== | + | ===XMP extension=== |
Intel Corporation officially introduced the eXtreme Memory Profile (XMP) Specification on March 23, 2007 to enable enthusiast performance extensions to the traditional JEDEC SPD specifications for DDR3 SDRAM.[24] | Intel Corporation officially introduced the eXtreme Memory Profile (XMP) Specification on March 23, 2007 to enable enthusiast performance extensions to the traditional JEDEC SPD specifications for DDR3 SDRAM.[24] | ||