3.2 – DDR RAM Flashcards
1
Q
DDR
A
Double Data Rate
o Advanced version of SDRAM = synchronous dynamic random-access memory
o Difference between SDRAM & DDR is how much data is transported with each cycle
2
Q
DDR RAM
A
various types [DDR, DDR2, DDR3, DDR4, DDR5]
Different types NOT compatible with each other
Motherboard that supports one type of DDR will NOT work with any other type
3
Q
Performance Rating
A
DDR – 266 = PC – 2100
266 [transfer rate] X 8 [bits] = 2128 [Mbps]
Find DDR Rate: 3200/8 = 400
4
Q
DDR3
A
Min Speed: DDR3-800 / PC3-6400
Max Speed: DDR3-2133 / PC3-17000
5
Q
DDR4
A
Min Speed: DDR4-1600 / PC4-12800
Max Speed: DDR4-3200 / PC3-25600
6
Q
DDR5
A
Min Speed: DDR5-4800 / PC5-38000
Max Speed: DDR5-6600 / PC5-52800
