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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 data rate") interface. Released to the market in 2014, [ 2 ] [ 3 ] [ 4 ] it is a variant of dynamic random-access memory (DRAM), some of which have been in use since the early 1970s, [ 5 ...
DDR, 4 4 GB DT, MT, SFF May 21, 2003 [33] HP Compaq dc5000 [34] Intel 865GV: Intel Pentium 4 Intel Extreme Graphics 2 (No GPU slot) Nvidia Quadro NVS 280 PCI DDR, 4: 4 GB: MT, SFF: Q1 2004 [35] HP Compaq dc5100 [36] Intel 915GV: Intel Pentium 4 LGA 775 Intel GMA 900 (No GPU slot) Nvidia Quadro NVS 55 PCI Nvidia Quadro NVS 280 PCI DDR2, 4: 4 GB ...
A module of any particular size can therefore be assembled either from 32 small chips (36 for ECC memory), or 16(18) or 8(9) bigger ones. DDR memory bus width per channel is 64 bits (72 for ECC memory). Total module bit width is a product of bits per chip and number of chips. It also equals number of ranks (rows) multiplied by DDR memory bus width.
Memory: 4 GB DDR4 2666 MHz (minimum); 32 GB DDR4 2666 MHz (maximum) Hard drive: 256 GB M.2 PCIe NVMe Solid State Drive + 1 TB 7200 rpm 3.5-inch SATA hard drive; Bluetooth: 4.0, 2.4 GHz, 1x1; Graphics: Intel® UHD Graphics 630; NVIDIA GeForce GTX 1050Ti with 4 GB GDDR5 Graphics Memory; Starting price: $389.00-$579.00
The integrated video controller is an AMD Radeon R5 or R7 with shared system memory and its discrete video controller is an AMD Radeon RX460 with 4 GB GDDR5 memory. Like the Inspiron 15 7000 Gaming series, the laptop uses DDR4 RAM which can be upgraded to 32 GB and has one M.2 slot for an SSD and one M.2 slot for a wireless card.
In 2009, the standards group JEDEC published JESD209-2, which defined a more dramatically revised low-power DDR interface. [4] [5] It is not compatible with either DDR1 or DDR2 SDRAM, but can accommodate any one of: LPDDR2-S2: 2n prefetch memory (like DDR1), LPDDR2-S4: 4n prefetch memory (like DDR2), or; LPDDR2-N: Non-volatile memory.
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