In the development of technology there are several types of RAM DDR SDRAM, which DDR1, DDR2, DDR3 and DDR4. The first DDR RAM or known as DDR1 emerged in the era of the Intel Pentium processor, and then replaced with a DDR2 RAM era DUAL CORE processors later in the era of Core i3 processor is replaced with RAM DDR3 and DDR4-era Core i5 processor upwards.
Now the development of DDR RAM has reached version DDR4. DDR4 is the next generation of DDR SDRAM RAM latest. The development of DDR RAM is one of them lies in the data transfer speed is increasing along with the development of chipsets and processors.
You know that in a computer, there is a memory called RAM (Random Access Memory) that serves as a means of data storage required to run the command processor computer users when using an application. Thus, the function of this memory is an intermediary between or liaison between the processor and hardware, and other applications.
When the computer is turned on, the processor takes the data from the hard disk. However, generally slow hard drive to provide the data requested by the processor, so here it takes the presence of RAM to help provide the data requested by the processor. In the development of this RAM memory has issued various kinds of memories with their respective advantages in each era. The most familiar is the SD memory and DDR RAM. Well this time I will discuss about the different types of DDR memory. Because it is now widely used memory is a type of DDR. Until now there are 4 types of DDR RAM is DDR1, DDR2, DDR3, DDR4. Then what is the difference? Consider the following review.
DDR (double data rate) RAM 1 represents the generation of memory began using the technology double clock cycle. This differs from the SDR (single data rate) RAM is only able to do a single clock cycle. So DDR RAM is able to transfer data twice as fast. DDR RAM there are several types such as DDR-200 (having a memory clock of 100 MHz), DDR-266 (having a memory clock of 133 MHz), DDR-333 (having a memory clock of 166 MHz) and DDR-400 (having a memory clock of 200 MHz) , Transfer frequency can be generated only between 200-400 MHz DDR1. DDR RAM version 1 was developed from 1996 to 2000.
DDR2 RAM has a clock cycle two more times. That is, his ability is two times faster than DDR1. Memory clock its stretched from 100 MHz to 266 MHz. Type DDR2 has a standard name DDR2-400, DDR2-533, DDR2-667, DDR2-800 and DDR2-1066. And frequency transfer between 400-1966 MHz.
While DDR3 RAM, in terms of its memory clock not much different from that of DDR2 100 MHz to 266 MHz. The difference lies in the transfer frequency higher, reaching 2133 MHz (DDR2 only up to a maximum of 1066 MHz) and a more efficient voltage is only 1.5V (DDR2 and DDR requires 1.8v voltage 1 to 2.5 / 2.6V).
It is the latest generation of RAM DDRSDRAM to transfer data reaches 2133 ~ 3200 MT / s. DDR4 RAM also more efficient with a working voltage of 1.2V. With a voltage of 1.2V is recorded DDR4 RAM capable of achieving data transfer rate of 2400 MT / s. In DDR4 RAM banks there are four groups where each group is able to handle operations independently. This makes the process mempu 4 DDR4 RAM data in one clock cycle and made it clear more efficient than DDR3 RAM.
In addition to the DDR4 RAM there are also other new features such as the DBI (Data Bus Inversion), CRC (Cyclic Redundancy Check) and CA parity. These features improve signal integrity DDR4 RAM and of course improve the stability of data transmission / access.
The difference in the physical memory type DDR to DDR2 and DDR type 3And first DDR4 is the type of memory chip used. In memory type DDR 1 memory chip (IC) used on board is a memory module is the kind of TSOP (Thin Small-Outline packege). The shape is a rectangle with legs on the left and right. Rarely one DDR memory module that uses a type of memory chip BGA.
In the type of DDR2 memory, a type of memory chip used is the type of BGA (Ball Grid Away). The form there are rectangular, unisex square. But, unlike the TSOP type of memory chip, the legs on the BGA type memory invisible to the eye because it lies below the chip and immediately and directly plugged into the module board memori.dan for DDR 3 have in common with the type of DDR 2 memory that is with BGA (Ball grid Away). Likewise with DDR4 which is a refinement of the DDR3.
Other physical differences that can be seen by naked eye is on the notch provided on board memory at the golden finger connector alias memory slots on the motherboard. On the type of DDR memory, this notch lies a little to the right side to DDR 2, notchnya located a little more to the middle of the memory module board and on the type of the latest DDR 3 notchnya currently located slightly to the left as opposed to the location of the first DDR notch.
The last physical differences can be seen easily is the number of pins used. Pin DDR memory has as many as 184 pieces (92-pin on each side), while the DDR2 and DDR memory type 3 has a smaller pin and a solid amount of 240 pieces (120-pin on each side).
Perhaps it was this that I can write to retrieve information from multiple sources. If there is a complaint please write a comment below, have a nice day.
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