GPUIntegrated (APU)Released Sep 22, 2017

Apple A11 Bionic GPU (3-core)

64-bit · 384 cores

Apple's first in-house GPU design: 3 cores in the A11 Bionic (iPhone 8/8 Plus/X), paired with the first 2-core Neural Engine.

General

Manufacturer: Apple
Model: A11 Bionic GPU (3-core)
Segment: Integrated (APU)
GPU chip: Apple A11 Bionic
Architecture: Apple GPU (Family 4)
Release date: Sep 22, 2017
Price: Search on Amazon

Memory

Memory size: —
Memory type: LPDDR4X-4266 (unified)
Bus width: 64-bit
Bandwidth: 34.1 GB/s
Memory clock: —

Clocks & silicon

GPU clock: —
Boost clock: —
Shader units: 384 ALUs (3 cores)
Tensor / AI cores: —
RT cores: —
Transistors: 4.3 billion
Technology (nm): 10 nm
TSMC 10nm FinFET
TDP / TBP: —

Interface & APIs

Bus interface: Integrated (on-die)
SLI / multi-GPU: None
DirectX: N/A (iOS / iPadOS)
OpenGL: ES 3.0 (deprecated)
Vulkan: via MoltenVK
Other APIs: Metal 2, OpenGL ES 3.0

AI support

Precisions: FP8FP16BF16INT8INT4TF32FP64
AI accelerator: 2-core Neural Engine (0.6 TOPS, SoC)
Peak AI TOPS: 0.6 TOPS
Notes: GPU supports FP16 and INT8 compute through Metal. The Neural Engine is a separate SoC block rated by Apple at 600 billion operations per second. Apple does not publish GPU clocks. Memory bandwidth of 34.1 GB/s is theoretical, derived from LPDDR4X-4266 on a 64-bit bus; Apple does not publish memory bandwidth figures for A-series chips.

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