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C6688 DDR3 throughput

Tom Smith
Expert 2930 points

On C6688 do you happen to have a benchmark for DDR3 speed/bandwdith? The triple core uses a DDR2 memory so I’d like to see the improvement in bandwidth. I understand the clock is different but I was wondering if TI has done any specific benchmarking for throughput.

-Tom-

  • 0
    TI__Guru* 84110 points

    Tom,

    From a search on ti.com, I could not find a C6688. Which DSP are you interested in?

    DDR3 devices may require longer CAS Latency delays, but you still get double-data-rate transfers in bursting conditions. The DDR3 technology allows us to move to higher clock frequencies, and the bandwidth would tend to be linear with speed and also linear with bus width.

    Meaningful benchmarks are very application dependent. What is your application?

    Regards,
    RandyP

     

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