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A12X Bionic - Apple
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A12X Bionic
General Info
Model NumberA12X Bionic
IntroductionOctober 30, 2018 (announced)
November 7, 2018 (launched)
General Specs
MicroarchitectureVortex, Tempest
Core NameVortex, Tempest
Process7 nm
Die122 mm²
N/A × N/A
Word Size64 bit
Max CPUs1 (Uniprocessor)

A12X Bionic is a 64-bit octa-core ARM mobile system on a chip introduced by Apple in late 2018 as a successor to the A10X.


Fabricated on TSMC 7 nm process and integrating over 10 billion transistors, the A12X features four big Vortex cores along with four little Tempest high-efficiency cores. Apple claims that single-core performance is 35% faster than the A10X, while the increased core count improves multi-core performance by up to 90%. All eight cores can operate concurrently.

The A12X features an Apple-designed graphics processor that is said to deliver twice the performance of the A10X, and Apple's neural processor makes its first appearance in an A_X-series chip.

Apple A12X


The A12X incorporates Apple's image signal processor (ISP), codename Petra. The ISP is said to deliver a faster depth engine and improved video processor.

Integrated Graphics[edit]

The A12X incorporates an Apple-designed graphics processor which features tessellation, multi-layer rendering, and lossless memory compression. The GPU is a seven-core design and is said to deliver twice the performance of the A10X. Apple characterizes this as "XBox One S-class graphics performance".

Neural Engine[edit]

The A12X chip features a neural engine codenamed Quin. The engine is capable of processing 5 trillion 8-bit operations per second, identical to the A12. Apple states this is an 8-core design, an increase from the A11's dual-core NPU.

Utilizing devices[edit]

  • iPad Pro 11"
  • iPad Pro 12.9" (3rd gen)


  • Apple Keynote. (October 30, 2018). Apple Special Event.
Facts about "A12X Bionic - Apple"
core count8 +
core nameVortex + and Tempest +
designerApple +
die area122 mm² (0.189 in², 1.22 cm², 122,000,000 µm²) +
familyAx +
first announcedOctober 30, 2018 +
first launchedNovember 7, 2018 +
full page nameapple/ax/a12x +
instance ofmicroprocessor +
isaARMv8.3 +
isa familyARM +
ldateNovember 7, 2018 +
manufacturerTSMC +
market segmentMobile +
max cpu count1 +
microarchitectureVortex + and Tempest +
model numberA12X Bionic +
nameA12X Bionic +
process7 nm (0.007 μm, 7.0e-6 mm) +
technologyCMOS +
thread count8 +
transistor count10,000,000,000 +
used byiPad Pro 11" + and iPad Pro 12.9" (3rd gen) +
word size64 bit (8 octets, 16 nibbles) +