Understanding RAM and the Simple Difference of RAM 

Netgenz.com -  Computer and Internet, Hello friends, on this occasion I will provide tips and information about the differences in RAM from generations of DDR 1, DD2, DDR3, and DDR4 which might be easy to understand, What is RAM? What is the difference between the RAM generations of DDR 1, DD2, DDR3, and DDR4?

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Whats RAM?

Before I discuss the differences in RAM from the generation DDR 1, DD2, DDR3, and DDR4 which might be easy to understand, before that we need to know what RAM is? RAM has a meaning. stands for (Random Access Memory).

Hardware (hardware) is useful for storing data and program instructions running the operating system (Windows for example) which will and have been executed by the processor. It's just that the storage is temporary, the temporary meaning here is that when the computer is turned off the ram will be emptied and then it will be filled with new data that is injured when the computer comes back to life (apparently stepping on the gas/speed of a car), whereas if hard storage tends to be a hard disk (hard disk).

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What is RAM Function?

• Accelerate data processing on computers and systems when performing tasks, meaning that the more RAM, the faster our computer processes it.
  
  
• As temporary storage when the computer is on, and if the computer is shut down or shut down, the storage will be lost, and the computer is turned on again, the RAM will replace with new data on the computer or laptop. Also read: Differences between GPT and MBR hard drive types when installing Windows 7, 8, and 10, How to check hard drive type via cmd

Random Access Memory

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Simple Difference RAM from generation DDR 1, DD2, DDR3, and DDR4?

The following are simple differences in RAM from generations of DDR 1, DD2, DDR3, and DDR4.

1. DDR 1

DDR Abbreviation (double data rate), namely RAM as the first generation is the memory that started using double clock cycle technology. This is different from SDR, namely (Single Data Rate) which can only perform a single clock cycle speed, so DDR RAM can transfer data at a frequency twice as fast as SDR type, DDR RAM 1 has the following types of speeds, basically only around 200-400MHz, while the decomposition is in more detail regarding the speed as follows and has a voltage of 2.5 / 2.6 volts.

There are several types of DDR RAM such as

DDR-200/2 = has a memory transfer clock of 100 MHz

DDR-266/2 = has a memory transfer clock of 133 MHz

DDR-333/2 = has a memory transfer clock of 166 MHz

DDR-400/2 = has a memory transfer clock of 200 MHz

2. DDR2

DDR2 RAM has twice as many clock cycles, which means, its capability is twice as fast as DDR1 generation

The memory clock is from 100 MHz to 266 MHz. generally, DDR2 types have type names like this DDR2-400, DDR2-533, DDR2-667, DDR2-800, DDR2-1066, And has a transfer frequency between 400-1966 MHz, and requires a voltage of 1.8 volts

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3. DDR3

While DDR3 RAM in terms of the number of memory cycles is in the range of 100MHz to 266 MHz, not much different from DDR2, the difference is the speed of the data transfer frequency. which is higher, reaching 2133 MHz. Maximum DDR2 is only 1066 MHz and the voltage is more efficient, which is only 1.5V (DDR2 requires a lower voltage, namely 1.5 Volts.

4. DDR 4

The latest type of RAM with data transfer speeds of up to 2133 ~ 3200 MT / s. DDR4 RAM is considered more efficient and economical because it only has a voltage of 1.2V. DDR4 RAM as a new generation is capable of achieving data transfer rates of 2400 MT / s. and a voltage of 1.2 volts

In DDR4 RAM there are four groups of memory banks where each group can handle operations independently or independently. So that DDR4 RAM can process 4 data in one clock cycle, of course, it is much more efficient than the DDR 3,2 generation let alone 1. This type of DDR4 RAM also has other features such as DBI (Data Bus Reversal), CRC (Cyclic Redundancy Check), and CA parity. These features increase the stability of data transmission/data access.

Conclusion What is the difference between the RAM generations of DDR 1, DD2, DDR3, and DDR4?

Each generation has a different transfer memory clock

Each generation has a different voltage value, the newer the generation the smaller the voltage. 

The performance is more efficient and saves electricity. Each generation has a special shape starting from the leg socket and roughly anatomical shape which is quite different.

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