CES 2013: Samsung Unveils 8-Core Exynos 5 Octa Processor for Mobile Devices
January 9, 2013 6:39 PM
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Samsung goes for the throat with its 8-Core Exynos 5 Octa
Just when we were finally getting used to the notion of quad-core processors in our smartphones and tablets, Samsung is dropping a bombshell on the mobile community: an eight-core processor. In this particular case, however, there are two banks of quad-core processing units. The first bank consists of four Cortex-A15 processing units for high performance, while the second bank consists of four Cortex-A7 processing units for lighter workloads in order to save battery life.
The idea of using lower-power cores for mundane tasks sounds similar to what NVIDIA does with its Tegra 3/
Tegra 4 processors
. The Tegras feature quad-cores for high-performance applications and a fifth "companion" core to handle loads that aren't as demanding.
According to Samsung, going with this "high-low" 8-core arrangement allows it to offer 70 percent greater power efficiency than the previous generation quad-core Exynos.
“The new Exynos 5 Octa introduces a whole new concept in processing architecture…designed for high-end smartphones and tablets,” said Samsung's Dr. Stephen Woo. “When you want multiple applications to perform at their best, you want the best application processor currently available—the Exynos 5 Octa.”
Could we possibly see this new chip in a Samsung Galaxy S IV???
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RE: Complicated and Costly Design?
1/9/2013 9:25:10 PM
I imagine it works something along the line of power gating the A15's until the A7 is maxed out in utilization. Then it would turn on the A15 and power gate the A7. That's how I envision it anyways. The A7 would probably handle UI/mostly idle tasks, while the A15 would probably be necessary to make something more fluid like web browsing.
"Well, we didn't have anyone in line that got shot waiting for our system." -- Nintendo of America Vice President Perrin Kaplan
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