ARM Delivers 64-bit ARMv8 Linux Kernel Support (AArch64)

[curaga]

Here we have several different A9 cores, with some greatly losing and some greatly winning an Atom even in the same benchmark. Based on that you can't really conclude that an A9 does more per clock, and discount every benchmark where it did not win.

How funny: first you say i'm wrong when i wrote a9 is faster than atom clock for clock and now this. Not afraid to look ridiculous heh?

Never be afraid to make a fool of yourself

But seriously, none of this contradicts. A9 can be slower clock for clock and still win in some bench.

[ldesnogu]

A well-designed out of order design more efficient than an in-order design based on the 586? Color me unimpressed

How funny: first you say i'm wrong when i wrote a9 is faster than atom clock for clock and now this. Not afraid to look ridiculous heh?

[curaga]

A well-designed out of order design more efficient than an in-order design based on the 586? Color me unimpressed

[ldesnogu]

OMG it ties a 1.6 GHz N270

[curaga]

Ya, and the HTC Desire HD is also a 1GHz single core ARM, which ties the Atom. Now what?

[droidhacker]

http://www.phoronix.com/scan.php?page=news_item&px=MTEzMTk

How quickly people forget about current news.
"2011-11-29" is an N270.
"xoom linaro" is a qualcomm MSM8255
See how it gets thoroughly whooped by a 1-core armv7 @ 1GHz?

[ldesnogu]

7-zip is multithreaded, as are the NAS fortran tests and video encoding tests, and the A9 does worse there.

Did 7-zip ARM version receive as much attention as the x86 one? It should also be noted that it's very likely this is memory bandwidth constrained and many existing A9 SoC have poor memory bandwidth (and this is not a property of A9 core itself).

How old is ARM FORTRAN port?

As far as encoding goes, the answer is the same as FFmpeg: probably hitting some ARM unoptimized path.

[curaga]

7-zip is multithreaded, as are the NAS fortran tests and video encoding tests, and the A9 does worse there.

[ldesnogu]

1. N270 has HT which benefits Atom a lot given its dumb in-order archictecture.
2. Some of the benchmarks in your link aren't MT. Pick Byte nbench. Don't forget the A9 is running at 1.2 GHz vs 1.6 GHz N270.
3. FFmpeg probably is using a unoptimized codec.

So I stand to my point: at the same clock, A9 is faster than Atom

[curaga]

http://www.phoronix.com/scan.php?page=article&item=ubuntu_1204_armfeb&num=1