Notes - vision hardware: memory

data:

Memory - the most authentic perspective with you to understand memory

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• table of Contents:
  • Performance
  • frequency
  • Timing

Performance

• Memory of the two most important performance indicators
  • capacity
  • speed

frequency

• Cpu frequency of memory access frequency of short memory
• The default up to 2400MHZ, some high-frequency memory frequency up to 3600MHZ

What is the impact of memory frequency

• Physical memory chips

Method of increasing the access speed of computer memory:

1. Frequency change memory + memory overclocking
2. Dual channel memory group

Not all motherboards only support high frequency memory

• Intel Series
  • Only Z and X-based system to support high frequency memory
  • H and B based system supports up to 2666MHZ

Timing

cpu在内存中找数据是需要的时间 - 延迟
假设内存的频率为2400MHZ
那么cpu访问2400Mhz后的总延迟 也称为时序

一般来说，频率越高时序越大
不过有些高频内存的内存查找速度也会很快
所以单次查询的延迟也会很低

to sum up