The Motley Fool recently contacted Chipworks for insight into Apple’s newest SoC. What it found was a technical achievement that Apple’s designers should be more than proud of.
Chipworks’ Dick James tells me that he sees a 12-cluster GPU, two CPU cores, and an absence of the level-three cache memory found inside the A9 chip (I’ll explain why I think Apple didn’t include it later in this article). I agree with his assessment. The two CPU cores can be seen in the green box, and I believe that inside of each blue box are two GPU clusters, for a total of 12 clusters.
At the end of the day, the sheer size of the iPad Pro is what affords the ability to place such a chip inside of its casing:
According to Chipworks, the chip measures in at approximately 147 square millimeters, a whopping 40% larger than the size of the TSMC-built variant of the A9 chip inside of the iPhone 6s/6s Plus. This is an absolutely huge increase in area (and by extension transistor count) from the A9, which no doubt means that this monster of a chip is far more difficult to manufacture, especially on a relatively new manufacturing technology.
Interesting, right ?
