V2EX ddr5

DDR5

释义 Definition

DDR5:第五代“双倍数据速率”同步动态随机存取存储器(Double Data Rate 5 SDRAM)标准,常用于电脑内存(RAM)。相较 DDR4,通常提供更高带宽、更高容量、更细的供电管理(如 PMIC),并引入如 On-die ECC 等改进(主要用于提升芯片内部可靠性)。

发音 Pronunciation (IPA)

/di di r fav/

例句 Examples

My laptop uses DDR5 memory.
我的笔记本电脑使用 DDR5 内存。

Upgrading to DDR5 can increase memory bandwidth, but the real-world gain depends on the CPU, motherboard, and workload.
升级到 DDR5 可能提升内存带宽,但实际收益取决于 CPU、主板以及具体工作负载。

词源 Etymology

DDR 来自 Double Data Rate(双倍数据速率),指内存在时钟信号的上升沿和下降沿都传输数据,从而提高传输效率;5 表示该技术标准的第五代演进(由行业标准组织如 JEDEC 制定与发布)。

相关词 Related Words

文学与著名作品 Notable Works

  • JEDEC 标准文档:*JESD79-5 (DDR5 SDRAM)*(作为 DDR5 的权威技术规范来源)
  • 教材/专著Computer Organization and Design(计算机组成与设计类教材常在存储层次与主存部分讨论 DRAM/DDR 体系)
  • 专著Computer Architecture: A Quantitative Approach(计算机体系结构经典书籍,涉及内存系统与带宽/延迟权衡,常以 DDR 等为背景示例)
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