What is the difference between ddr5 memory and ddr4? ddr5 memory and ddr4 difference comparison

This year ddr5 memory particles have also begun mass production, indicating that it will not be long before ddr5 memory sticks will gradually become popular, so compared with the ddr4 memory sticks we are using now, what aspects of ddr5 memory will be improved?

This year ddr5 memory particles have also begun mass production, indicating that it will not be long before ddr5 memory sticks will gradually become popular, so compared to the ddr4 memory sticks we are using now, what aspects of ddr5 memory will be improved, let us come have a look.

Comparison of the difference between ddr5 memory and ddr4:

1. Performance

ddr5 and ddr4

If you only look at the frequency, under the same capacity, the performance of a 4800MHz DDR5 memory stick is 1.5 times that of a 3200MHz DDR4 memory stick. The actual DDR5 has other BUFFs, so the final performance bonus is 1.87 times. You can also simply understand that in the same time, DDR5 ran 3 laps, while DDR4 ran only 2 laps, properly rolled.

2. Working voltage

For low-power devices, the biggest significance of DDR5 compared to DDR4 is the higher energy consumption ratio. The voltage is further reduced from 1.2V to 1.1V, which can save more power. In addition, DDR5 also moved the PMIC (power management IC) from the motherboard to the DIMM, which makes the power management granularity smaller, which can make the entire platform more power-saving. The new generation of notebooks can improve the speed at the same time. Without sacrificing battery life or even get longer battery life.

3. ECC characteristics

Simply put, ECC (Error Correcting Code) is a memory error correction mechanism. During operation, the memory may undergo 1bit data jumps. The memory with ECC characteristics can actively correct errors and maintain the long-term stable operation of the system. In the past, ECC memory was generally used in servers, that is, enterprise-level memory products. ECC has always existed as an optional feature before, and ECC memory sticks are generally not supported on consumer platforms. This time the DDR5 standard has decentralized ECC features to consumer products, which means that subsequent memory that supports DDR5 will have more stable performance.

4. Capacity increase

This means a larger single memory upper limit. In the past, we saw that a single 32GB memory was basically at the end. This time a single DRAM with a larger capacity is supported, which may allow us to see a single 64GB or even 128GB memory stick appear. However, in the consumer market, the current memory demand has not seen such a big one, and it may still be used on high-end consumer-grade platforms. No longer have to worry that your DDR5 memory slot is not enough, two large-capacity memory sticks are enough for you to use the memory sticks as a system disk.

5. Specifications

The first batch of DDR5 SO-SIMM memory is equipped with a 16GB capacity and a frequency of 4800MHz. This specification means that it can beat the existing DDR4 SO-SIMM memory on the market in performance, but the capacity does not seem to bring too much for the time being Surprise, but it is enough for the current application scenarios of the mobile terminal, but in the future, a larger single strip capacity will definitely be a development direction. After all, it is limited by the internal slot and DDR4 memory specifications, and the current notebook platform is no more than It supports 64GB (2*32GB), and the gradual promotion of large-capacity is also a direction for the evolution of DDR3 to DDR4.

6. Summary

DDR5 memory sticks on the PC platform will come soon. Compared to DDR4, the frequency, timing, and energy consumption will be better than DDR4, but it will be about two years later for DDR5 to be released to the mobile platform, so you don’t need to worry about memory when buying a laptop. For the algebra, DDR4 will do. The higher the frequency, the lower the timing, the better.

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