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imx8mm ddr bandwidth

Question asked by li zuobin on Aug 15, 2019
Latest reply on Aug 15, 2019 by igorpadykov

Hi,

   Is there any memory bandwidth test data for imx8mm_evk lpddr4 and ddr4?

   I tested imx8mm_evk with the command bw_mem 1000M rd , the result is only 2500M / s,

   bw_mem 1000M wr only 1500M / s.

 

   The theoretical bandwidth of lpddr4 3000MT/s 32bit should be 6000M/s+. Why is imx8mm_evk only 2500M/s?

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