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MIPS Technologies Inc. Message Board

  • taexpert928 taexpert928 Sep 20, 2011 2:29 PM Flag

    Why MIPS has advantage over ARMH?

    1) The 4G processors have more Wi-Fi wireless than 3G processors. MIPS is the number one provider of wireless chip designs for Wi-Fi routers and other devices.

    2)MIPS is the original RISC processor inventor ( by President of Stanford University) and its 578 patents have originality priority over ARM RISC architecture

    3) MIPS has 32-bit and 64-bit processors. ARM does not have 64-bit. MIPS has single and multithreaded designs. ARM does not have multithreaded

    4) A research team at the University of California, San Diego (UCSD) is developing a cell phone chip that dramatically improves power conservation. The prototype chip is called GreenDroid and uses a MIPS processor and the Android operating system. The UCSD research team chose MIPS over ARM cortex due the POWER superiority of MIPS architecture.

    5) MIPS has proven superiority over ARM cortex in power consumption and smaller size. MIPS processor M14K reduces development time and time-to-market.

    6) According to EE Times article the two mobile processors of ARM and MIPS are dead even in terms of clock frequency. The ARM Cortex-A9MPCore is slightly faster than the MIPS 1074K at the same frequency, but MIPS processor is smaller in silicon area and consumes less power.

    7) MIPS lets SW designer to design their own custom instructions, which ARM doesn’t permit


    Taken from rogerabc post. Anybody can prove him wrong? Is he right?

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    • I have not found any such articles

      links would be great

      You can do your own google searches to see what Atheros (and other vendors) are likely to use in new chipsets.

    • GreenDroid project is based on MIPS processor. Why UCSD researcher chose MIPS and not ARM for a project that its main goal is reducing power consumption?

      http://www.eetimes.com/electronics-news/4206408/Android-processor-shines-light-on-dark-silicon

      << Goulding claims his team has put in 7mm2 of silicon the capability to run 43,000 fundamental instructions that cover 95 percent of the most energy intensive tasks of an Android handset. The cores are managed by a central MIPS processor, a CPU chosen simply because the university had access to the core.>>

    • Below my reply when this was posted on the ARM board
      -----
      I am MSEE who has a good knowledge of microprocessors and 25 years ago even was teaching fundamental of microprocessors in a technical college in Israel. I truly think that MIPS architecture has advantage over ARM and is underestimated by the mobile R&D engineering mangers. The stronger marketing force of ARMH and pressure from large British hedge funds are mainly making ARMH successful against MIPS.
      -----

      You need to go back to school...

      Can you give three architecture advantages that MIPS has over ARM (without cutting and pasting from a MIPS blog)?

      -----
      1) The 4G processors have more Wi-Fi wireless than 3G processors. MIPS is the number one provider of wireless chip designs for Wi-Fi routers and other devices.
      -----

      Almost all known 4G processors are ARM based. Almost all new wi-fi chip sets are ARM based.

      -----

      2)MIPS is the original RISC processor inventor ( by President of Stanford University) and its 578 patents have originality priority over ARM RISC architecture

      -----

      ARM also has a heap of patents...

      Check out the history of the two firms:

      http://en.wikipedia.org/wiki/Reduced_ins...
      http://en.wikipedia.org/wiki/MIPS_archit...
      http://en.wikipedia.org/wiki/ARM_archite...

      -----
      3) MIPS has 32-bit and 64-bit processors. ARM does not have 64-bit. MIPS has single and multithreaded designs. ARM does not have multithreaded
      -----

      MIPS doesn't have 64-bit processors (it used to). It has a 64 bit ISA that it licences to others who design their own core. MIPS and ARM are both working on their own 64 bit cores. Multithreaded isn't a big deal as you make out as it's only suitable for certain work loads (the MIPS core with a Multithreaded design isn't a big seller).

      ------
      4) A research team at the University of California, San Diego (UCSD) is developing a cell phone chip that dramatically improves power conservation. The prototype chip is called GreenDroid and uses a MIPS processor and the Android operating system. The UCSD research team chose MIPS over ARM cortex due the POWER superiority of MIPS architecture.
      -----

      You need to read up more about GreenDroid and it's goals:

      http://www.technologyreview.com/computin...

      -----
      5) MIPS has proven superiority over ARM cortex in power consumption and smaller size. MIPS processor M14K reduces development time and time-to-market.
      -----

      So claim MIPS. ARM claim differently.

      -----
      6) According to EE Times article the two mobile processors of ARM and MIPS are dead even in terms of clock frequency. The ARM Cortex-A9MPCore is slightly faster than the MIPS 1074K at the same frequency, but MIPS processor is smaller in silicon area and consumes less power.
      -----

      That article wasn't an apples for apples comparison (assuming we're talking about the same one). Given the same environment, the MIPS 1074K should *outperform* the A9 and not be slower (if it was really slower then MIPS has got big problems). That article also doesn't mention what's included/excluded from the SoC (SIMD, floating point etc) which will make a big difference in power and silicon area.

      ----
      7) MIPS lets SW designer to design their own custom instructions, which ARM doesn’t permit
      -----

      Yes ARM do - if you have an architectural licence (Marvell do this alot).

    • #1 I believe is true

      #2 may be true but not relevant..if he is implying Armh patent infringement of Mips...we would prob know by now

      #3This is true and Mips new 64bit Prodigy family released yhis month

      #4 I believe this is true but not sure and don't ever hear much/anything about it

      #5 This is true but the statement "time to market" may not be...Armhs huge ecosystem gets their products out quickly

      #6 This is true

      #7 This is true

    • Any rational response? no comments at all?

 

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