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Slideshow: ARM A57 core revealed

11/1/2012 00:45 AM EDT
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vdara
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re: Slideshow: ARM A57 core revealed
vdara   11/1/2012 4:00:43 AM
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So, seems the signal thread performance of A57 core will be close to that of Intel Yonah core (Core microarchitecture), and a bit lower than that of Merom core (Core 2 microarchitecture), if SpecInt2000 can be taken linearly, which was designed to. SpecInt2000 scores (http://www.spec.org/cpu2000/results/cint2000.html): Core Duo T2600@2.17G = 1796 Core 2 Duo T7400@2.17G = 2284 They were released in 2006 (Jan and Aug?), and TDPs are 31W and 34W respectively.

rfab
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re: Slideshow: ARM A57 core revealed
rfab   11/1/2012 9:20:28 AM
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Pentium M 755 1541

rick merritt
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re: Slideshow: ARM A57 core revealed
rick merritt   11/1/2012 2:56:33 PM
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@vdara: Thanks for the comparisons. If ARM is matching even a former generation Intel Core it must be far exceeding Atom as it suggests in its own rough performance chrat, yes?

dougwithau
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re: Slideshow: ARM A57 core revealed
dougwithau   11/1/2012 3:48:42 PM
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Rick, Did they go into the bus architecture. Does it use a full AXI bus? If yes, there is a huge catalog of mature IP that can be put with the cores. If not, well, maybe in version 2. Also, I have to ask the annoying question, what sort of PMIC will we need to run the thing?

rick merritt
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re: Slideshow: ARM A57 core revealed
rick merritt   11/1/2012 11:40:37 PM
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I'm not sure if I can answer your question, but the last two foils (8 and 9) show SoCs using different versions of ARM's CoreLink interconnects to link clusters of 4 cores up to 4 clusters (16 cores)

help.fulguy
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re: Slideshow: ARM A57 core revealed
help.fulguy   11/2/2012 3:48:19 AM
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Wow, you are comparing this crap to almost 7 year old CPU from Intel?

vdara
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re: Slideshow: ARM A57 core revealed
vdara   11/2/2012 6:40:24 AM
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Based on the VIA report, the SpecInt2000 score of Atom D525 is 725@1.83G, http://www.via.com.tw/en/downloads/whitepapers/processors/NanoX2_whitepaper_201107.pdf. So, yes, A15 core is able to outperform Atom Pineview core by a nice 40%+ margin. But this performance gain comes with the cost of power. Anand found that, under heavy load, Exynos 5 Dual (A15 core) consumes ~4W additional power over idle, while Atom N570 (similar Pineview core) consumes 2.6W more, http://www.anandtech.com/show/6422/samsung-chromebook-xe303-review-testing-arms-cortex-a15/7. Atom2 (Silvermont) is supposed to be available in 2013. It will be very interesting to see how does it compare with A15/A57.

kjdsfkjdshfkdshfvc
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re: Slideshow: ARM A57 core revealed
kjdsfkjdshfkdshfvc   11/2/2012 1:31:05 PM
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Wow, intel must have their co-ops posting! I guess we are all wrong - we should shut up and buy intel.

Ashley.Stevens
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re: Slideshow: ARM A57 core revealed
Ashley.Stevens   11/2/2012 4:38:58 PM
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1250 SPECINT is for a single core Cortex-A57. It's very unlikely you will ever see single-core Cortex-A57 in silicon. CCN-504 will enable 16-core systems. You are comparing single core Cortex-A57 vs dual core Intel. A fairer comparison of what you will see in silicon is 16-core Cortex-A57 vs dual or quad-core Intel. Or compare dual vs dual if you like. But comparing single Cortex-A57 to dual Intel is a silly and pointless comparison.

vdara
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re: Slideshow: ARM A57 core revealed
vdara   11/2/2012 5:42:24 PM
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specint/fp is for single thread performance.

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