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
----- 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:
----- 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).