Apple M3 Pro 14-Core GPU vs Radeon HD 6645G2

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureTerascale 2 (2009−2015)no data
Market segmentLaptopLaptop
Release date14 June 2011 (13 years ago)31 October 2023 (1 year 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 cores56014
Manufacturing process technology40 nm5 nm

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 sizemedium sizedmedium sized

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 typeno dataLPDDR5-6400
Shared memory--

API compatibility

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

DirectX11no data

Pros & cons summary


Recency 14 June 2011 31 October 2023
Chip lithography 40 nm 5 nm

Apple M3 Pro 14-Core GPU has an age advantage of 12 years, and a 700% more advanced lithography process.

We couldn't decide between Radeon HD 6645G2 and Apple M3 Pro 14-Core GPU. We've got no test results to judge.


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

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AMD Radeon HD 6645G2
Radeon HD 6645G2
Apple M3 Pro 14-Core GPU
M3 Pro 14-Core GPU

Comparisons with similar GPUs

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Community ratings

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Rate Radeon HD 6645G2 on a scale of 1 to 5:

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3.8 29 votes

Rate Apple M3 Pro 14-Core GPU on a scale of 1 to 5:

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Questions & comments

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