Apple's A6 iPhone 5 SoC integrates triple-core GPU

After an analysis and high-resolution diffusion images taken of the A6 die, UBM Insights believes that the chip is being manufactured by Samsung in a 28 nm process. AnandTech further showed an image that suggests that Apple is using three PowerVR SGX 543MP3 GPU cores at 266 MHz. There was no information whether the ARM cores are based on ARM's Cortex-A15 or the previous Cortex-A9. However, Apple promised twice the performance of the preceding A5, which is a hint that the switch to the A15 has been made.

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