ARM has a different take on this, positioning this MCU (int the 1 GHz – 1.5 GHz single or dual-core configurations) even for Smartphone and Mobile Computing: http://www.arm.com/products/processors/cortex-a/cortex-a15.p... (under performance tab).

Then you scale up to 1.5GHz – 2.5 GHz quad-core, octo-core or larger configurations but this are obviously for other class of devices.