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.
Based on the VIA report, the SpecInt2000 score of Atom D525 is firstname.lastname@example.orgG, 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.
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?
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.