Friday, April 22, 2011

Cortex A15 confirmed in 2012: 4 cores, 2.5 GHz

MRA confirms its next core release in 2012. Currently, two ARM cores share the market: the Cortex A8 and Cortex A9. The first has only one core in-order type, and it is gradually becoming a smart entry. The second usually has two cores (soon four) and proposes a treatment out-of-order, more efficient.

Cortex A15 - who must fight against the changes Snapdragon (krait), and can be the first core CPU NVIDIA - will have one to sixteen cores, will obviously out-of-order and will offer two interesting innovations. The first is the hardware support of virtualization, such as x86 lately, with the ability to quickly move from one context to another (and therefore a virtual machine to another).

The second will support more than 4 GB of RAM and CPU are all 32-bit ARM and Cortex A15 does shoed no exception, but the address bus is 40-bits (1 TB of memory) with a system page as a part x86 32-bit in recent years. This technique can handle more than 4GB of memory, but applications are limited to 32 bits.

For 2012, ARM Cortex A15 promises with two cores and a frequency of 2 GHz, it is hoped enough for Windows 8. In 2013, versions with four cores and 2.5 GHz should leave. Note that Texas Instruments and NVIDIA have already announced that it had licensed the Cortex A15.

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