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Type of computer memory
synchronous dynamic random-access memory (DDR SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) widely used in computers and other electronic
DDR_SDRAM
Second generation of double-data-rate synchronous dynamic random-access memory
Dynamic Random-Access Memory (DDR2 SDRAM) is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) interface. It is a JEDEC standard
DDR2_SDRAM
Type of computer memory
Mobile DDR. LPDDR differs from standard DDR SDRAM in both design and features, with changes that make it more suitable for mobile devices. Unlike DDR, which
LPDDR
Type of graphics card memory
graphics cards and high-performance computing. It is a type of GDDR SDRAM (graphics DDR SDRAM), and is the successor to GDDR6. At Samsung Tech Day 2022, Samsung
GDDR7_SDRAM
Type of computer memory
adopted its first SDRAM standard in 1993 and subsequently adopted other SDRAM standards, including those for DDR, DDR2 and DDR3 SDRAM. SDRAM is also available
Synchronous dynamic random-access memory
Synchronous_dynamic_random-access_memory
Type of random-access memory
data rate") interface. Scheduled to release in 2028, it is a type of DDR SDRAM, which will be the successor to DDR5. It will have a speed of 8,800–17
DDR6_SDRAM
Type of memory used on graphics cards
Graphics DDR SDRAM (GDDR SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) specifically designed for applications requiring high bandwidth
GDDR_SDRAM
Third generation of double-data-rate synchronous dynamic random-access memory
higher-speed successor to DDR and DDR2 and predecessor to DDR4 synchronous dynamic random-access memory (SDRAM) chips. DDR3 SDRAM is neither forward nor
DDR3_SDRAM
Type of synchronous graphics random-access memory
consoles, and high-performance computing. It is a type of GDDR SDRAM (graphics DDR SDRAM), and is the successor to GDDR5. Just like GDDR5X it uses QDR
GDDR6_SDRAM
Type of high performance DRAM graphics card memory
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.
GDDR5_SDRAM
Type of computer memory
generation of SDRAM; it made a single transfer of data per clock cycle. Double data rate SDRAM (DDR SDRAM or DDR) was a later development of SDRAM, used in
Dynamic_random-access_memory
Method of computer bus operation
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
Double_data_rate
Type of graphics card memory
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
GDDR3_SDRAM
Topics referred to by the same term
transfer strategy of a computer bus DDR SDRAM, a computer memory standard that uses double-data-rate transfers DDr., title for a double doctorate in Germany
DDR
Computer memory module
72-pin SIMM 144-pin: SDR SDRAM, sometimes used for DDR2 SDRAM 200-pin: DDR SDRAM and DDR2 SDRAM 204-pin: DDR3 SDRAM 260-pin: DDR4 SDRAM 260-pin: UniDIMMs carrying
DIMM
Standardized way to automatically access information about a memory module
latencies with progressively lower clock speeds. The DDR DIMM SPD format is an extension of the SDR SDRAM format. Mostly, parameter ranges are rescaled to
Serial_presence_detect
Type of synchronous dynamic random-access memory
RDRAM got embroiled in a standards war with an alternative technology—DDR SDRAM—and quickly lost out on grounds of price and, later, performance. By around
RDRAM
GPU by Nvidia
October 1999 and the DDR version released in mid-December 1999 – each with a different type of SDRAM memory. The SDR version uses SDR SDRAM memory from Samsung
GeForce_256
Type of computer memory introduced 2014
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
DDR4_SDRAM
Series of personal computers
the 350 MHz Sawtooth. This series had a 100 MHz system bus and four PC100 SDRAM slots for up to 2 GB of RAM (1.5 GB under Mac OS 9). The AGP Power Macs
Power_Mac_G4
Printed circuit board for computer memory
(most SDRAM but some were extended data out DRAM (EDO DRAM)) DIMM 184-pin (DDR SDRAM) RIMM 184-pin (RDRAM) DIMM 240-pin (DDR2 SDRAM and DDR3 SDRAM) DIMM
Memory_module
American technology company
intellectual property-based litigation following the introduction of DDR-SDRAM memory. Rambus was founded in March 1990 by electrical and computer engineers
Rambus
Self-correcting computer data storage
transfer). Since DDR SDRAM, the standard bus width (word size) as far as memory is concerned is 64 bits. As a result, the typical setup between DDR and DDR4 is
ECC_memory
Desktop computer by Apple
An ATI Radeon 9200 graphics processor (GPU) with 32 megabytes (MB) of DDR SDRAM was supplied as standard; in the final 2005 model, Apple added a high-end
Mac_Mini
RDRAM memory was not commonly installed in a dual-channel configuration. DDR and DDR2 memory is usually installed in single- or dual-channel configuration
List_of_interface_bit_rates
Type of computer memory
Random-Access Memory (DDR5 SDRAM) is a type of synchronous dynamic random-access memory. Compared to its predecessor DDR4 SDRAM, DDR5 was planned to reduce
DDR5_SDRAM
Company
Archived from the original on April 26, 2023. "SiS735 - a chipset with DDR SDRAM support for SocketA systems". Ixbt Labs. Archived from the original on
Silicon_Integrated_Systems
ending in AG support up to Registered PC2700 DDR SDRAM All other models support up to Registered PC3200 DDR SDRAM All models only support single-processor
List of AMD Opteron processors
List_of_AMD_Opteron_processors
Type of computer memory
networking equipment. Synchronous SRAM (e.g., DDR SRAM) is preferred similarly to how synchronous DRAM – DDR SDRAM memory is now preferred over asynchronous
Static_random-access_memory
All-in-one desktop computer made by Apple
natively. The next revision to the eMac line came in April 2004, with DDR SDRAM, a faster processor running at 1.25 GHz, and a better ATI Radeon 9200
EMac
Process for preserving information in DRAM
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
Memory_refresh
List of dynamic random-access memory manufacturers
It includes companies that manufacture or market DRAM chips used in DDR SDRAM, LPDDR, GDDR, HBM, and specialty or legacy memory products. Companies
List_of_DRAM_manufacturers
Type of computer memory that transfers data using QDR
up to four words of data in each clock cycle. Like double data-rate (DDR) SDRAM, QDR SRAM transfers data on both rising and falling edges of the clock
Quad_data_rate_SRAM
Anand Lal. "VIA's KT133A Socket-A Chipset: AMD 760 Performance without DDR SDRAM". www.anandtech.com. Archived from the original on April 16, 2010. Retrieved
List_of_VIA_chipsets
Data storage device
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
Semiconductor_memory
Line of tower computers designed and manufactured by Apple
512 MB 256 MB 512 MB Type PC-2700 DDR SDRAM PC-3200 DDR SDRAM PC-2700 DDR SDRAM PC-3200 DDR SDRAM PC2-4200 DDR2 SDRAM Maximum Expandable to 4 GB Expandable
Power_Mac_G5
Chipset
a platform for motherboards supporting AMD's Socket A CPUs along with DDR SDRAM. There were multiple variations of the chipset including one with an integrated
NForce2
All-in-one computer by Apple
PC133 SDRAM 256 MB of PC133 SDRAM 128 or 256 MB of PC133 SDRAM 256 MB of PC133 SDRAM 256 MB of PC2100 (266 MHz) DDR SDRAM 256 MB of PC2700 (333 MHz) DDR SDRAM
IMac_G4
Video card by Matrox
166 MHz SDRAM, while the fastest (G400 MAX) uses 200 MHz SGRAM. G400MAX had the highest memory bandwidth of any card before the release of the DDR-equipped
Matrox_G400
Series of notebook computers created by Apple Computer
1 GB RAM type PC100 SDRAM PC133 SDRAM Graphics Amount 8 MB of SDRAM 16 MB of SDRAM 32 MB of DDR SDRAM 32 MB or 64 MB of DDR SDRAM Type ATI Rage Mobility
PowerBook_G4
Specialty DRAM, faster than contemporary SDRAM
improving the access time. FCRAM has a DDR SDRAM-like command set to enable memory controllers that support both DDR SDRAM and FCRAM. It also has a standard
Fast_Cycle_DRAM
Laptop
as the E15-AV101 with a 1.7 GHz Intel Pentium M CPU, 512 megabytes of DDR SDRAM, and a 15-inch XGA 1024x768 screen. Toshiba's most powerful laptop has
Qosmio
Computer motherboard form factor
(integrated VIA CN400 Northbridge) + VIA VT8237R Southbridge Main memory: 1× DDR-SDRAM as SO-DIMM (PC3200, PC2700, PC2100 and PC1600) Miscellaneous: 1× Mini
EPIA
Synchronous dynamic random-access memory#SDRAM history. Double data rate synchronous dynamic random-access memory (DDR SDRAM) is introduced in 2000. Compared
History_of_personal_computers
Unreleased handheld game console
Network: WiFi - 802.11 b/g, WiBro NAND Flash Memory: 64 MB RAM: 64 MB DDR SDRAM (128 MB at release time was rumored) Storage: Secure Digital card Battery:
XGP
Line of home and business desktop computers by Dell
Northwood-128) 1.70, 1.80, 2.00, 2.10, 2.20 GHz DDR SDRAM 2 user-accessible DDR SDRAM slots PC2100 (266-MHz) DDR SDRAM (non-ECC) Integrated Intel integrated AGP
Dell_Dimension
Series of GPUs by Nvidia
reduced available memory bandwidth. The cards utilized either SDR SDRAM or DDR SDRAM with memory bus widths ranging from 32 to 128 bits, allowing circuit
GeForce_2_series
Apple rack-mounted server
PC2100 DDR SDRAM (1 GHz) 512 MB of PC2100 DDR SDRAM (DP 1 GHz) Expandable to 2 GB 256 MB of PC2700 DDR SDRAM (1.33 GHz) 512 MB of PC2700 DDR SDRAM (DP 1
Xserve
Timing information of a memory module
system. The timing of modern synchronous dynamic random-access memory (SDRAM) is commonly indicated using four parameters: CL, TRCD, TRP, and TRAS in
Memory_timings
Logical unit of storage in computer architecture
a typical synchronous dynamic random-access memory (SDRAM) or double data rate SDRAM (DDR SDRAM), a bank consists of multiple rows and columns of storage
Memory_bank
All-in-one computer by Apple
the first Apple computer to use the PCI Express expansion bus and DDR2 SDRAM. The stand could no longer be replaced with a VESA mount, and the computer
IMac_G5
superseded by the Intel 845, which used slower but much less expensive SDRAM or DDR SDRAM. The Intel 855 chipset released at the same time as the Pentium M
Intel_850
American storage device company
Patriot Memory line of DDR SDRAM to be sold in the retail and online market. Unlike the SDRAM manufacturers that released their SDRAM as bare modules, the
Patriot_Memory
Texas Instruments image/video processors
Processor (ISP) + stacked mDDR SDRAM OMAP-DM500 – ARM7 + ISP + stacked mDDR SDRAM OMAP-DM510 – ARM926 + ISP + 128 MB stacked mDDR SDRAM OMAP-DM515 – ARM926 +
OMAP
Memory used to store the framebuffer in graphics cards
262144×16 bit VRAM data sheet (PDF), Austin Semiconductor, archived from the original (PDF) on 2011-07-07, retrieved 2009-03-02 "What is DDR SDRAM?".
Dual-ported_video_RAM
Type of motherboard
PowerPC 440EP SoC processor Cache L1/L2: 32KB/- 128/256/512 MB 266 MHz DDR SDRAM soldered to the motherboard 1× 32-bit, 33 MHz PCI slot 1× Flash memory
Sam440ep
Form of computer memory
first commercial double data rate SDRAM was Samsung's 64 Mbit DDR SDRAM, released in June 1998. GDDR (graphics DDR) is a form of SGRAM (synchronous graphics
Random-access_memory
Standard that is openly accessible and usable by anyone
computer architectures ) Synchronous dynamic random-access memory (SDRAM) and its DDR SDRAM variants (by JEDEC Solid State Technology Association) Universal
Open_standard
South Korean multinational electronics corporation
introduced SDRAM (synchronous dynamic random-access memory) in 1992, and later DDR SDRAM (double data rate SDRAM) and GDDR (graphics DDR) SGRAM (synchronous
Samsung_Electronics
Family of 64-bit Intel microprocessors
128 GB of DDR SDRAM at 6.4 GB/s. It was originally designed for Rambus RDRAM serial memory, but when RDRAM failed, Intel added four DDR SDRAM-to-RDRAM
Itanium
Line of midrange to high end desktop replacements
was a revision to the ThinkPad A30 with mobile Pentium 4-M processors, DDR SDRAM, and faster ATI Mobility Radeon 7500 graphics. It was described as having
ThinkPad_A_series
Server and workstation processor line by AMD
processor possesses an integrated memory controller supporting DDR SDRAM, DDR2 SDRAM or DDR3 SDRAM (depending on processor generation). This both reduces the
Opteron
Internet appliance
(accelerometer). The Chumby One Freescale iMX233 454 MHz ARM926EJ-S processor 64 MB DDR SDRAM 2 GB internal microSD card (capacity depends on production date) 320×240
Chumby
Early form of computer memory
Volatile RAM Hardware cache CPU cache Scratchpad memory DRAM eDRAM SDRAM SGRAM DDR GDDR LPDDR QDRSRAM EDO DRAM XDR DRAM RDRAM HBM SRAM 1T-SRAM ReRAM QRAM
Williams_tube
Home video game console
front-side bus (FSB) with a 1.06 GB/s bandwidth. The system has 64 MB unified DDR SDRAM, with a 6.4 GB/s bandwidth, of which 1.06 GB/s is used by the CPU and
Xbox_(console)
Method of data transmission in which bits are conveyed in parallel
system bus, and front-side bus, including various generations of DDR SDRAM and GDDR SDRAM IBM System/360 Direct Control Feature (1964). Standard System/360
Parallel_communication
Computer memory that does not lose its contents after being turned off
computer data storage technologies Volatile memory Current DRAM SDRAM DDR SDRAM DDR LPDDR HBM EDO DRAM RDRAM XDR DRAM QDR eDRAM Dual-ported RAM SRAM
Non-volatile_memory
Recording of information in a storage medium
computer data storage technologies Volatile memory Current DRAM SDRAM DDR SDRAM DDR LPDDR HBM EDO DRAM RDRAM XDR DRAM QDR eDRAM Dual-ported RAM SRAM
Data_storage
Home video game console
eNAND Flash 128 MB NAND Flash in MCP 160 MB RAM, 128 MB DDR SDRAM in MCP + 32 MB stacked DDR SDRAM in MSM7201A Resolution: VGA (640×480) – 4:3 aspect ratio
Zeebo
PC chip handling onboard control tasks
1.3 GHz and utilize DDR SDRAM, and the Intel i915G chipset only works with the Intel Pentium 4 and the Celeron, but it can use DDR or DDR2 memory.[citation
Northbridge_(computing)
American data storage company
computer data storage technologies Volatile memory Current DRAM SDRAM DDR SDRAM DDR LPDDR HBM EDO DRAM RDRAM XDR DRAM QDR eDRAM Dual-ported RAM SRAM
Qumulo
Technique used for timing symbols on a digital interface
clocking is common in high-speed interfaces between micro-chips, including DDR SDRAM, SGI XIO interface, Intel Front Side Bus for the x86 and Itanium processors
Source-synchronous
Computer memory that loses its contents when unpowered
computer data storage technologies Volatile memory Current DRAM SDRAM DDR SDRAM DDR LPDDR HBM EDO DRAM RDRAM XDR DRAM QDR eDRAM Dual-ported RAM SRAM
Volatile_memory
Series of laptops by Apple Computer
256 MB of 266 MHz PC2100 DDR SDRAM (128 soldered to logic board) Expandable to 1.128 GB 256 MB of 266 MHz PC2100 DDR SDRAM (soldered to logic board)
IBook
Graphics card line
over-sampling of ImgTech PowerVR, ATI Radeon DDR and Nvidia GeForce 2. The chip implements a 128-bit SDRAM interface, again similar to the Voodoo3. Memory
Voodoo_5
Video game console
and includes SJTAG for in-circuit emulation. The system has 16 MB of DDR SDRAM. Video output is a composite video cable permanently attached. Its native
HyperScan
Method for electrically transmitting information
Ethernet – 10 Gbit/s (four differential pairs running at 2.5 Gbit/s each) DDR SDRAM – 3.2 Gbit/s (differential strobes latch single-ended data) The type of
Differential_signalling
as SDRAM, transmitted data on only the rising edge of the clock signal. With the advent of double data rate synchronous dynamic RAM or DDR SDRAM, the
Pumping_(computer_systems)
frame carries 144 data bits, the amount of data produced by a 72-bit wide DDR SDRAM array in that time, and 24 bits of CRC for error detection. There is no
Fully_Buffered_DIMM
Physical components of a computer
when the system loses power. In modern systems, DRAM is often of the DDR SDRAM type, such as DDR4 or DDR5. Permanent storage or non-volatile memory is
Computer_hardware
Series of CPUs by AMD
revision, resulting in performance improvements as well as support for newer DDR SDRAM. On April 21, 2005, less than a week after the release of Venice and San
Athlon_64
Former American computer hardware manufacturer
primarily at the computer hardware enthusiast market, producing performance DDR SDRAM, video cards, USB drives, power supply units, and various cooling products
OCZ
Time delay between data read command and availability of data in a computer's RAM
number of clock ticks instead of absolute time, the actual time for an SDRAM module to respond to a CAS event might vary between uses of the same module
CAS_latency
Video gaming brand owned by Microsoft
Custom RDNA 2 DirectX 12 based GPU with 52 compute units Memory 64 MB DDR SDRAM @ 200 MHz 6.4 GB/s 512 MB of GDDR3 RAM @ 700 MHz 22.4 GB/s, 10 MB EDRAM
Xbox
Chinese home video game console
system. Processor: MIPS R-4300i 64-bit CPU @ 140.625 MHz Memory: 16 MB DDR SDRAM, 8 MB usable Graphics: 100,000 polygons per second, 2.09 million colors
IQue_Player
Parallel supercomputing architecture
each with 18 ARM9 processors (specifically ARM968) and 128 MB of mobile DDR SDRAM, totalling 1,036,800 cores and over 7 TB of RAM. The computing platform
SpiNNaker
Workstation computer from Silicon Graphics
2003. The Fuel includes 512 MB of memory as standard. Using proprietary DDR SDRAM DIMMs, it can be upgraded to a maximum of 4 GB via four slots in two banks
SGI_Fuel
Workstation computer series
boards up to the same quad-1 GHz edition. The Tezro shipped with 512 MB of DDR SDRAM. It can be expanded using proprietary DIMMs. The tower version can hold
SGI_Tezro
Device controlling access and addressing of memory
reduced transfer speeds compared to DDR memory. Double data rate (DDR) memory controllers are used to drive DDR SDRAM, where data is transferred on both
Memory_controller
Persistent computer data storage with no moving parts
computer data storage technologies Volatile memory Current DRAM SDRAM DDR SDRAM DDR LPDDR HBM EDO DRAM RDRAM XDR DRAM QDR eDRAM Dual-ported RAM SRAM
Solid-state_storage
Storage of digital data readable by computers
computer data storage technologies Volatile memory Current DRAM SDRAM DDR SDRAM DDR LPDDR HBM EDO DRAM RDRAM XDR DRAM QDR eDRAM Dual-ported RAM SRAM
Computer_data_storage
Line of notebook computers
GeForce GT 750M with 2 GB GDDR5 SDRAM Automatically switches between graphics hardware Intel Iris 5100 Graphics with DDR SDRAM shared with main memory Intel
MacBook_Pro_(Intel-based)
Electrical standards
used with DRAM based DDR memory IC's and memory modules. SSTL is primarily designed for driving the DDR (double-data-rate) SDRAM modules used in computer
Stub_Series_Terminated_Logic
with enter button. Memory 256 MB Flash ROM 128 MB DDR SDRAM Memory 512 MB Flash ROM 256 MB DDR SDRAM TouchFLO HTC Touch Family HTC "HTC Touch Cruise full
HTC_Touch_Cruise
Independent semiconductor engineering trade organization
as the JEDEC memory standards for computer memory (RAM), including the DDR SDRAM standards. JEDEC also developed a number of popular package drawings for
JEDEC
Electronic component to manage data flow of a CPU
accelerator and direct support for synchronous DRAM, the forerunner of DDR SDRAM memory. The Apple Macintosh SE, Macintosh II and later the Quadras series
Chipset
Gaming generation from 1998 to 2013
3 MB embedded 1T-SRAM Audio/Alternative RAM 16 MB DRAM 64 MB unified DDR SDRAM Audio Stereo audio, with: 64 PCM/ADPCM channels 128 step DSP Yamaha XG
Sixth generation of video game consoles
Sixth_generation_of_video_game_consoles
Slanting line punctuation mark (/)
signifies that the pin is activated by a low voltage, or logic 0. 512Mb DDR SDRAM HY5DU12422A(L)T, HY5DU12822A(L)T, HY5DU121622A(L)T (PDF) (Data sheet)
Slash_(punctuation)
Series of video cards
capability. The core speed was 183Mhz and the 5.5 ns DDR SDRAM memory clock speed was 183 MHz DDR (366 MHz effective). The R100 introduced HyperZ, an early
Radeon_R100_series
Ratio used in computer memory
of DRAM will operate as: DDR SDRAM at 400 MHz (DDR-400 or PC-3200) DDR2 SDRAM at 800 MHz (DDR2-800 or PC2-6400) DDR3 SDRAM at 1600 MHz (DDR3-1600 or
Memory_divider
DDR SDRAM
DDR SDRAM
DDR SDRAM
DDR SDRAM
DDR SDRAM
DDR SDRAM
DDR SDRAM
DDR SDRAM
DDR SDRAM