Memory Latency & Bandwidth Performance

Given AMD's on-die memory controller, memory latencies should be reduced significantly as well as bandwidth efficiency improved a bit. In order to validate these hypotheses we turn to ScienceMark 2.0 to give us an indication of memory latency and bandwidth performance:

Although the Pentium 4 and the Athlon 64 FX have the same amount of theoretical memory bandwidth, the Athlon 64 FX comes out ahead by a significant margin thanks to the on-die memory controller.

Memory latency is reduced significantly over the Athlon XP thanks to the on-die memory controller, although there is much to be said about Intel's 865/875 memory controllers by looking at the latency comparison seen above.

Here we have the same comparison as before, just with the performance measured in CPU clocks and not ns.

Intel's Preemptive Strike - Pentium 4 Extreme Edition Business Application Performance


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  • Anonymous User - Tuesday, September 23, 2003 - link

    That's all ? Reply
  • wecv - Monday, August 14, 2017 - link


    I am from the future and I am here to tell you that AMD failed so hard in 2012 with bulldozer yet intel made a huge success with Sandybridge

    Where is your god now amdrones?

    But don't worry guys... in 2017 AMD made a huge success with Ryzen which is a cheap awesome 8 core with SMT which is kinda similar to the HT you know with the Pentium 4 HT but don't you worry guys! it's much better so you get 8 lovely cores and 16 threads

    Where is your god now shintel boys?

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