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Difference between revisions of "A6"
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| − | The Apple A6 is a system on a chip (SoC) designed by Apple Inc. that drives the [[iPhone 5]] which was introduced on September 12, 2012. Apple claims that it is twice as fast and has twice the graphics power compared to its predecessor the Apple [[A5]]. The A6 is said to use a 1.3 GHz custom Apple-designed ARMv7 based dual-core CPU, called Swift, rather than a licensed CPU from ARM like in previous designs, and an integrated triple-core PowerVR SGX 543MP3 graphics processing unit (GPU) with the same performance as the previous Apple [[A5X]] processor found in the third-generation [[iPad]]. The SGX 543MP3 is running at 266 MHz. The A6 chip also has 1GB of LPDDR2 SDRAM made by Elpida. Compared to the [[iPhone 4S]], which had only 512MB of LPDDR2 SDRAM. |
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| − | Manufactured by Samsung on a High-κ metal gate (HKMG) 32 nm process, the chip is 96.71 mm2 large which is 22% smaller than the [[A5]] and it consumes less power than its predecessor. |
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| − | Information is scarce but the Swift core uses a new tweaked instruction set, ARMv7s, featuring some elements of the ARM Cortex-A15 such as support for the Advanced SIMD v2, and VFPv4. Analysis suggests that the Swift core has a triple-wide frontend and two FPUs, compared to a two-wide core with a single FPU in the Cortex-A9 based predecessor. |
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| − | A version of the A6 with higher frequency and four graphic cores is called Apple [[A6X]] and is found in the fourth generation [[iPad]]. |
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