差别
这里会显示出您选择的修订版和当前版本之间的差别。
| 两侧同时换到之前的修订记录 前一修订版 后一修订版 | 前一修订版 | ||
|
ddr3 [2016/05/30 18:52] gongyu |
ddr3 [2016/05/30 18:53] (当前版本) gongyu [Standards with similar names] |
||
|---|---|---|---|
| 行 142: | 行 142: | ||
| * Both FBDIMM (fully buffered) and LRDIMM (load reduced) memory types are designed primarily to control the amount of electric current flowing to and from the memory chips at any given time. They are not compatible with registered/buffered memory, and motherboards that require them usually will not accept any other kind of memory. | * Both FBDIMM (fully buffered) and LRDIMM (load reduced) memory types are designed primarily to control the amount of electric current flowing to and from the memory chips at any given time. They are not compatible with registered/buffered memory, and motherboards that require them usually will not accept any other kind of memory. | ||
| - | ====**DDR3L and DDR3U extensions**==== | + | ====DDR3L and DDR3U extensions==== |
| The DDR3L (DDR3 Low Voltage) standard is an addendum to the JESD79-3 DDR3 Memory Device Standard specifying low voltage devices. The DDR3L standard is 1.35 V and has the label PC3L for its modules. Examples include DDR3L‐800 (PC3L-6400), DDR3L‐1066 (PC3L-8500), DDR3L‐1333 (PC3L-10600), and DDR3L‐1600 (PC3L-12800). The DDR3L and DDR3U specifications are compatible with the original DDR3 standard and can run at either the lower voltage or at 1.50 V.[19] | The DDR3L (DDR3 Low Voltage) standard is an addendum to the JESD79-3 DDR3 Memory Device Standard specifying low voltage devices. The DDR3L standard is 1.35 V and has the label PC3L for its modules. Examples include DDR3L‐800 (PC3L-6400), DDR3L‐1066 (PC3L-8500), DDR3L‐1333 (PC3L-10600), and DDR3L‐1600 (PC3L-12800). The DDR3L and DDR3U specifications are compatible with the original DDR3 standard and can run at either the lower voltage or at 1.50 V.[19] | ||
| 行 150: | 行 150: | ||
| ====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] | ||