[gebe]

They have already proven that WP can run on low spec hardware though with the Lumia 520. It's also a 1GHz, 512MB RAM device.

[vetinari]

Lumia 520 has MSM8227, it is not that low end. It is dual core Snapdragon S4 with Adreno 305. Nexus 7 (2013) is not that much powerful.