When you are looking for a Android TV Box for Streaming online, we will notice that some TV box sellers advertise DDR4, which is better than DDR3. From this statement, we can guess that DDR4 is the latest and the best. So what exactly is it?
DDR is short for Double Data Rate, which is a kind of synchronous dynamic random access memory (SDRAM) with high bandwidth interface, so it is called "double data rate". Strictly speaking DDR should be called DDR SDRAM, where SDRAM is the abbreviation of Synchronous Dynamic Random Access Memory.
DDR3 is the third generation of DDR SDRAM, while DDR4 is the fourth generation of DDR SDRAM, which is also the new generation of DDR to replace DDR3.
Compared to DDR3, DDR4 is improved in many ways.
1. DDR3 starts at 800MHZ and goes up to 2133MHz, while DDR4 actually has a frequency of 2133MHz and goes up to 3000MHz.
2. DDR3 only has 8bit prefetching mechanism, DDR4 has 16bit prefetching mechanism, theoretical speed is twice as fast as DDR3 with the same core frequency
3. DDR4 has a lower operating voltage. DDR3 memory consumes more power and is more likely to heat up and affect performance. DDR4's reduced power consumption reduces power and less heat, which improves the stability of memory sticks.
4. DDR4 has a more reliable transmission specification, further improving data reliability.
Here I will show some hot selling Android TV boxes with DDR4 for your reference.
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