Apple M3 Max 40-Core GPU vs Radeon RX 6600S

Primary details

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

Place in the ranking140not rated
Place by popularitynot in top-100not in top-100
Power efficiency30.82no data
ArchitectureRDNA 2.0 (2020−2024)no data
GPU code nameNavi 23no data
Market segmentLaptopLaptop
Release date4 January 2022 (2 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 cores179240
Core clock speed1700 MHzno data
Boost clock speed2000 MHzno data
Number of transistors11,060 millionno data
Manufacturing process technology7 nm5 nm
Power consumption (TDP)80 Watt53 Watt
Texture fill rate224.0no data
Floating-point processing power7.168 TFLOPSno data
ROPs64no data
TMUs112no data
Ray Tracing Cores28no 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 sizemedium sizedmedium sized
InterfacePCIe 4.0 x8no data
Supplementary power connectorsNoneno 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 typeGDDR6LPDDR5-6400
Maximum RAM amount4 GBno data
Memory bus width128 Bitno data
Memory clock speed1750 MHzno data
Memory bandwidth224.0 GB/sno 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 ConnectorsNo outputsno data

API compatibility

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

DirectX12 Ultimate (12_2)no data
Shader Model6.5no data
OpenGL4.6no data
OpenCL2.1no data
Vulkan1.3-

Pros & cons summary


Recency 4 January 2022 31 October 2023
Chip lithography 7 nm 5 nm
Power consumption (TDP) 80 Watt 53 Watt

Apple M3 Max 40-Core GPU has an age advantage of 1 year, a 40% more advanced lithography process, and 50.9% lower power consumption.

We couldn't decide between Radeon RX 6600S and Apple M3 Max 40-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 RX 6600S
Radeon RX 6600S
Apple M3 Max 40-Core GPU
M3 Max 40-Core GPU

Comparisons with similar GPUs

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Community ratings

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4.7 13 votes

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3.4 237 votes

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Questions & comments

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