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The Apple A8 is a 64-bit ARM based system on a chip designed by Apple Inc. It first appeared in the iPhone 6 and iPhone 6 Plus, which were introduced on September 9, 2014. Apple states that it has 25% more CPU performance and 50% more graphics performance while drawing only 50% of the power compared to its predecessor, the Apple A7.

Apple A8
Apple A8 system-on-a-chip.jpg
Apple A8 processor
Produced From September 9, 2014 to Present
Designed by Apple Inc.
Common manufacturer(s)
Max. CPU clock rate 1.1 GHz (iPod Touch 6th generation)  to 1.4 GHz (iPhone 6, iPhone 6 Plus) and 1.5 GHz (iPad mini 4 & Apple TV (4th Gen)) 
Min. feature size 20 nm
Instruction set A64, A32, T32
Microarchitecture Typhoon ARMv8-A-compatible
Product code APL1011
Cores 2
L1 cache Per core: 64 KB instruction + 64 KB data
L2 cache 1 MB shared
L3 cache 4 MB
Predecessor Apple A7
Successor Apple A9
GPU PowerVR Series 6XT GX6450 (quad-core)
Application Mobile
Variant Apple A8X

The Apple A8 is a 64-bit ARM based system on a chip (SoC) designed by Apple Inc. It first appeared in the iPhone 6 and iPhone 6 Plus, which were introduced on September 9, 2014. Apple states that it has 25% more CPU performance and 50% more graphics performance while drawing only 50% of the power compared to its predecessor, the Apple A7.