Samsung Exynos 5 Octa – Video Overview and Demonstration of ARM big.LITTLE
Exynos 5 Octa with ARM big.LITTLE technology
Here is the official video demonstration and overview of the Samsung’s first 8-core processor – the new Exynos 5 Octa with ARM big.LITTLE technology.
As we have noted, the new Exynos 5 Octa processor is based on two groups of four cores – Cortex A15 for maximum performance and Cortex A7 for everyday tasks. This approach allows the company to reduce the energy consumption by up to 70% compared to the dual-core Exynos 5 Dual, which relies on Cortex A15 chip.
LITTLE – Cortex A7:
- Most energy-efficient applications processor from ARM
- Simple, in-order, 8 stage pipeline
big – Cortex A15:
- Highest performance in mobile power envelope
- Complex, out-of-order, multi-issue pipeline
The best of both – seamless pairing of Cortex A15 and Cortex A7:
- Transparent to applications and middleware
- Compatible with current OS mechanisms
- Tuning of power management policies
- Coherent Interconnect enables tight coupling
- Common interrupt control for simplified software
- Software-driven task migration in microseconds