> A4 used a standard and pedestrian Cortex-A8 there. My understanding was that the A4 Cortex-A8 was a modified version by Intrinsity which apple bought out, bu

> A4 used a standard and pedestrian Cortex-A8 there. My understanding was that the A4 Cortex-A8 was a modified version by Intrinsity which apple bought out, but, you’re right. Apple didn’t start actually designing their own cores until the A6 [1]. [1] https://seekingalpha.com/amp/article/4293287-setting-record-straight-on-apples-custom-arm-processors https://seekingalpha.com/amp/article/4293287-setting-record-...