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General information | |
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Launched | March 16, 2012 |
Discontinued | October 23, 2012 |
Designed by | Apple Inc. |
Common manufacturer | |
Product code | S5L8945X[1] |
Performance | |
Max.CPUclock rate | 1 GHz |
Cache | |
L1cache | 32 KB instruction + 32 KB data[2] |
L2 cache | 1 MB[2] |
Architecture and classification | |
Application | Mobile |
Technology node | 45 nm[3][4] |
Microarchitecture | ARM Cortex-A9 |
Instruction set | ARMv7 |
Physical specifications | |
Cores |
|
GPU | PowerVR SGX543MP4 (quad-core)[5] |
Products, models, variants | |
Variant | |
History | |
Successor | Apple A6X |
TheApple A5X is a 32-bitsystem on a chip (SoC) designed byApple Inc., part of theApple silicon series, and manufactured bySamsung. It was introduced with and only used in thethird-generation iPad, on March 7, 2012. The A5X is a high-performance variant of theApple A5. Apple claimed the quad-corePowerVR SGX543MP4graphics processing unit (GPU) in the A5X is two times faster than the GPU in the A5, as the A5X GPU contains two more cores than the dual-core version GPU in the A5.[6]
The last operating system update Apple provided for a mobile device containing an A5X (third-generation iPad cellular models) wasiOS 9.3.6, which was released on July 22, 2019 as it was discontinued with the release ofiOS 10 in 2016.
Apple designed the A5X chip specifically for the third-generation iPad to provide the additional graphical performance it required for its newRetina display. The A5X chip features a dual-core 45 nmARM Cortex-A9 CPU[2] with aclock rate of 1 GHz,[7] and a quad-core 32 nmPowerVR SGX543MP4 GPU[5] with a clock rate of 250 MHz. Compared to the A5, the memory interface of the A5X is twice the size. The A5X memory interface subsystem utilizes four 32 bits wideLPDDR2 memory controllers.[5]
Unlike theApple A4 and the A5, the A5X uses a metalheat spreader (along with thermal paste) to cover the flip chip underneath.[8] The die takes up 162.94 mm2 of area[9]—a 36.5% increase in area used over the 119.32 mm2 die of the S5L8940 version of the A5.[9] The A5X does not use thepackage on package (PoP) method of installation to support RAM—RAM is found externally from the A5X chip.[8]