Apple M1 Pro 16-Core GPU vs Iris Plus Graphics 655

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking658not rated
Place by popularitynot in top-100not in top-100
Power efficiency20.69no data
ArchitectureGeneration 9.5 (2016−2020)no data
GPU code nameCoffee Lake GT3eno data
Market segmentDesktopLaptop
Release date3 April 2018 (6 years ago)10 November 2020 (4 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores38416
Core clock speed300 MHz1296 MHz
Boost clock speed1050 MHzno data
Number of transistors189 millionno data
Manufacturing process technology14 nm+++5 nm
Power consumption (TDP)15 Watt10 Watt
Texture fill rate50.40no data
Floating-point processing power0.8064 TFLOPSno data
ROPs6no data
TMUs48no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfaceRing Busno data
WidthIGPno data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeSystem SharedLPDDR5-6400
Maximum RAM amountSystem Sharedno data
Memory bus widthSystem Sharedno data
Memory clock speedSystem Sharedno data
Shared memory+-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsPortable Device Dependentno data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Quick Sync+no data

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_1)no data
Shader Model6.4no data
OpenGL4.6no data
OpenCL3.0no data
Vulkan1.3-

Pros & cons summary


Recency 3 April 2018 10 November 2020
Chip lithography 14 nm 5 nm
Power consumption (TDP) 15 Watt 10 Watt

Apple M1 Pro 16-Core GPU has an age advantage of 2 years, a 180% more advanced lithography process, and 50% lower power consumption.

We couldn't decide between Iris Plus Graphics 655 and Apple M1 Pro 16-Core GPU. We've got no test results to judge.

Be aware that Iris Plus Graphics 655 is a desktop card while Apple M1 Pro 16-Core GPU is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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Intel Iris Plus Graphics 655
Iris Plus Graphics 655
Apple M1 Pro 16-Core GPU
M1 Pro 16-Core GPU

Comparisons with similar GPUs

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Community ratings

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3.6 330 votes

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3.9 164 votes

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Questions & comments

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