DDR5 is a computer memory specification. A single chip of DDR5 memory can reach 64Gb, which is 8GB. If four chips are designed on one side, the memory capacity can reach 32GB. On both sides, the memory capacity can reach 64GB. If one chip is designed on one side, the memory capacity can reach 64GB. If there are 8 chips, the maximum capacity can reach 128GB.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What is the memory of ddr5?
DDR5 is a computer memory specification. Compared with DDR4 memory, the DDR5 standard has stronger performance and lower power consumption. Other changes include reducing the voltage from 1.2V to 1.1V, while increasing the bus efficiency to 32/40 bits per channel (ECC), and increasing the number of prefetched Bank Groups to improve performance.
The pin bandwidth (frequency) of DDR5 memory is twice that of DDR4. The first launch will start at 4800MHz. The frequency part is 50% higher than DDR4 3200MHz, and the total transmission bandwidth It increased by 38%. The most critical point is that the highest frequency that DDR5 memory can reach in the future is 8400MHz, which almost establishes the unshakable position of DDR5 memory in the PC field in the next few years.
A single chip of DDR5 memory can reach 64Gb, which is 8GB. If four chips are designed on one side, the memory capacity can reach 32GB. On both sides, the memory capacity can reach 64GB. If one side can reach 8 chip, the maximum capacity can reach 128GB. Of course, as for the design of memory particle capacity and the maximum capacity of a single memory, manufacturers need to measure it themselves. Judging from the current development of PCs, large memory is not strictly necessary, so at least in the early stage, a single DDR5 memory with a capacity of 16GB should be able to meet the needs of users. It should be said that on servers, large-capacity DDR5 memory has more room to play.
Main features of DDR5
Equivalent frequency improvement
The increase in equivalent frequency that everyone can most feel directly increases from "2133MHz" to "4800MHz". With the deepening of current DDR5 memory parameter adjustment, 6400MHz may become the mainstream level.
The increase in frequency has improved the theoretical running scores of DDR5 memory. In terms of reading test, writing test, copying and delay, the running score results have improved greatly.
DRAM capacity improvement
The DRAM capacity of memory is also the key direction of this DDR5 memory technology improvement. In JEDEC’s DDR4 specification, the maximum capacity of a single memory Die is only 16Gb, and in the DDR5 era, the capacity of a single Die has increased to 64Gb.
Lower working voltage
The working voltage of DDR5 memory is as low as 1.1V. Compared with the lowest working voltage of DDR4 of 1.2V, it has achieved a reduction of about 20%. Its Lowering has two important meanings.
The first is power consumption, especially for notebook products and enterprise-level server products, a 20% reduction in power consumption has significant energy-saving significance; the second is overclocking potential, starting voltage Reducing the memory allows for greater maneuverability in subsequent overclocking parameter adjustments, which can further enhance the overclocking potential of the memory.
On-die ECC
Introduces the ECC error correction mechanism to avoid risks, improve reliability and reduce defect rates.
Dual 32-bit addressing channel
The basic principle of the introduction of dual 32-bit addressing channel is to divide the internal 64-bit data bandwidth of the DDR5 memory module into The two bandwidths are 32-bit addressable channels, which effectively improves the memory controller's data access efficiency and reduces latency.
For more related knowledge, please visit the FAQ column!
The above is the detailed content of How big is ddr5 memory?. For more information, please follow other related articles on the PHP Chinese website!