Apple M4 40-core GPU vs Iris Plus Graphics 645

Primary details

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

Place in the ranking	665	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	20.36	no data
Architecture	Generation 9.5 (2016−2020)	no data
GPU code name	Coffee Lake GT3e	no data
Market segment	Laptop	Laptop
Release date	7 October 2019 (5 years ago)	no data

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 cores	384	40
Core clock speed	300 MHz	no data
Boost clock speed	1050 MHz	no data
Manufacturing process technology	14 nm+++	3 nm
Power consumption (TDP)	15 Watt	45 Watt
Texture fill rate	50.40	no data
Floating-point processing power	0.8064 TFLOPS	no data
ROPs	6	no data
TMUs	48	no 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).

Laptop size	no data	large
Interface	Ring Bus	no 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 type	System Shared	LPDDR5x-8533
Maximum RAM amount	System Shared	no data
Memory bus width	System Shared	no data
Memory clock speed	System Shared	8533 MHz
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 Connectors

Portable Device Dependent

no 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.

DirectX	12 (12_1)	no data
Shader Model	6.4	no data
OpenGL	4.6	no data
OpenCL	3.0	no data
Vulkan	1.3	-

Pros & cons summary

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Chip lithography	14 nm	3 nm
Power consumption (TDP)	15 Watt	45 Watt

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