ARM goes 64bit

ARM has announced the first two parts in its 64bit processor family today – the A-53 and A-57.

“The A-57 delivers three times the performance of  today’s processors with the same power budget and the A-53 delivers four times the power efficiency of today’s mobile phones,” says Noel Hurley, vp of ARM’s processor division.”

Silicon is expected in 2013/14 with devices out in 2014/15, says Hurley.

‘It’s been a rare opportunity to start with a clean sheet of paper to develop a new architecture,” adds Hurley,” we paid particular attention to power efficiency. Instead of  just adding another 32-bits we have stripped out complexity and made it a very power-efficient architecture.”

Licensees of A-57 and A-53 are Broadcom, Calxeda, AMD, HiSilicon, Samsung and ST.

Being soft IP,  A-53 and A-57 can be made on 28nm and 20nm planar processes at TSMC, Globalfoundries and Samsung, on the upcoming 16nm TSMC finfet process and 14nm Globalfoundries’ finfet process and on the 28nm Globalfoundries FD-SOI process.

The A-53 has a smaller die size than the A-9 on the same process geometry and is therefore cheaper to make. It also has better power-efficiency and higher performance than the A-9. ARM says it is the smallest 64bit processor on the planet.

As well as servers, the A-50s are for future superphones, mobile computers tablets and anything looking at larger data-sets.

The A-53 and A-57 can work together as a big-LITTLE implementation or can be used separately.

Where ARM’s partners have silicon of  the  A-15/A-7 bigLITTLE combinations a 50% improvement in power consumption is being achieved.

“bigLITTLE allows delivery of an incredible increase in performance while staying within the power budget of a consumer device,” says Hurley.



  1. SecretEuroPatentAgentMan

    Aha, that makes sense. Qualcomm is well known for not speaking loudly, to the point that new products are unannounced. Hexagon probably represents the high point in this direction as you have to sign a lot of documents to be allowed to see what it is about.
    Speaking of which, I note you write about a lot of chips, new and old, but Hexagon remains uncommented. From public leaks I know new versions are coming, perhaps one of them will be 64 bit wide.
    No problems about SEPAM, the name is chosen with great care for legal and other reasons.

  2. These sort of lists are only of those who have agreed to have their name printed, SEPAM (if I may be so bold as to address you thus).

  3. SecretEuroPatentAgentMan

    Strange, why is Qualcomm not on this list? They have an architecture license for the older ARM and a rather good implementation too. I find it hard to believe they will take the chance of letting the competitors overrun them.
    Or could they be brewing up a 64 bits Hexagon? This design gets oddly litte coverage.

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