Differences between DDR3 and DDR4 Memory

It is true that RAM, an acronym for Random Access Memory or random access memory, is a storage system in which all the instructions executed by the central processing unit (processor), as well as other computer units, are loaded.

Thus, there are different types of RAM, from which various subgroups or types emerge, among which DDR3 memories and DDR4 memories are mentioned, which are the object of study of this article, and then proceed to show the differences that exist between them.

📌DDR3 memory

It can be said that DDR3 memory (Double Data Rate type three Synchronous Dynamic Random-Access Memory) or double transfer rate memory in Spanish, is a type of RAM, from the SDRAM (synchronous dynamic random-access memory) family. memory) that allows the use of integrated from 1 GB to 8 GB, being possible to manufacture modules of up to 16 GB.

DDR3 memory is the logical evolution of DDR2 memory and, as in the previous case, these memories have a higher clock speed (from 400 to 1066 MHz), lower voltage (we went to 1.5 V) and again higher latencies. These DIMM modules have 240 pins just like DDR2, however, they are not compatible as they work at different speeds and voltages.

One of the main advantages of installing DDR3 memory is the possibility of faster data transfers, so you can get higher transfer and bus speeds than previous versions.

📌DDR4 memory

Briefly, DDR4 memory (Double Data Rate type 4 Synchronous Dynamic Random-Access Memory) or double transfer rate memory in Spanish, is a type of RAM, from the SDRAM (synchronous dynamic random-access memory) family. ) that are characterized by having 288 contacts, speeds ranging from 2GHz to about 4GHz and a reduction in energy consumption of around 20% compared to DDR3, in addition to its 30nm manufacturing process, the working voltage is lower and varies between 1.2 and 1.35 V.

Thus, DDR4 memory is the logical evolution of DDR3, with a high bandwidth compared to its previous versions. Additionally, DDR4 memory is not backward compatible due to differences in voltages, physical interface, and other factors.

📌Differences between DDR3 and DDR4 memories

  • DDR4 is an evolution over DDR3 that offers higher performance, higher density, higher reliability and other architectural innovations as well as lower power consumption than DDR3.
  • DDR4’s clock and data transfer rates are higher, typically 2133Mhz at 4266 MT/s (millions of transfers per second) while DDR3’s clock and data rates are lower, typically 1600Mhz at 2,133MT/s.
  • The voltage of DDR4 is lower, ranging between 1.2 to 1.35V while for DDR3 it goes from 1.5 to 1.65V depending on the speed of the memory.

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