So now that we've seen the inside, what can we conclude?
There's not much revolutionary here. In fact, the A4 is quite similar to the Samsung processor Apple uses in the iPhone.
It's clear from both hardware and software that this is a single core processor, so it must be the ARM Cortex A8, and NOT the rumored multicore A9.
It's quite challenging to identify block-level logic inside a processor, so to identify the GPU we're falling back to software: early benchmarks are showing similar 3D performance to the iPhone, so we're guessing that the iPad uses the same PowerVR SGX 535 GPU.
The iPad has 256 MB RAM, same as the iPhone.
The A4 sips power. In fact, power consumption is probably the reason Apple hasn't stepped up performance much from the iPhone. In order to get 10 hours of battery life, the entire iPad (including display) has to pull less than 2.5 Watts on average.
That's it for the A4. Let's take a look at some of the other chips inside the iPad.
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