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SKGR0's avatar
SKGR0
Icon for New Contributor rankNew Contributor
6 years ago

How does DDR4-2400 (I/O Clock as 1200MHz) achieve higher data rate of 2.4 GT/s when memory clock is only 300MHz and the data width is limited to 144 bits on an Arria10 device?

Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

2.4GT/s Transfer rate =1200MHz x 2

19.2GB/s Theoretical Bandwidth = (1200MHz x 2 x 64 bit DQ) = 153.6Gb/s = 19.2GB/s

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