Samsung also previewed a 2 GHz dual-core ARM Cortex-A15 application processor, the Exynos 5250, also designed on its 32-nm process. The company said that the processor is twice as fast as a 1.5 GHz A9 design without having to jump to a quad-core layout.
More news on the release dates and the details off Samsung’s version of the ARM Cortex A15 cpu for mobile devices. Samsung is helping ramp up performance by shrinking the design rule down to 32nm, and in the A15 cpu dropping two out of the four possible cores. This choice is to make room for the integrated graphics processor. It’s a deluxe system on a chip that will no doubt give any A9 equipped tablet a run for its money. Indications at this point by Samsung are that the A15 will be a tablet only cpu and not adapted to smartphone use.
Early in the Fall there were some indications that the memory addressing of the Cortex A15 would be enhanced to allow larger memories (greater than 4GBytes) to be added to devices. As it is now memory addressing isn’t a big issue as memory extensions (up to 40bits Large Physical Address Extensions-LPAE) are allowed under the current generation Cortex A9. However the Instructions are still the same 32 bit Instruction Set longtime users of the ARM architecture are familiar with, and as always are backward compatible with previous generation software. It would appear that the biggest advantage to moving to Cortex A15 would be the potential for higher clock rates, decent power management and room to grow on the die for embedded graphics.
Apple in it’s designs using the Cortex processors has stayed one generation behind the rest of the manufacturers and used all possible knowledge and brute force to eek out a little more power savings. Witness the iPad battery life still tops most other devices on the market. By creating a fully customized Cortex A8, Apple has absolutely set the bar on power management on die, and on the motherboard as well. If Samsung decides to go the route of pure power and clock, but sacrifices two cores to get the power level down I just hope they can justify that effort with equally amazing advancements in the software that runs on this new chip. Whether it be a game or better yet a snazzy User Interface, they need to differentiate themselves and try to show off their new cpu.
- How fast can an ARM Cortex-A15 run? 2GHz in Samsung’s 32nm process technology. That’s fast! (eda360insider.wordpress.com)