Radeon RX 6600M vs HD 7670M Rebrand

Primary details

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

Place in the rankingnot rated136
Place by popularitynot in top-100not in top-100
Power efficiencyno data24.73
ArchitectureTeraScale 2 (2009−2015)RDNA 2.0 (2020−2024)
GPU code nameWhistlerNavi 23
Market segmentLaptopLaptop
Release date1 July 2012 (12 years ago)31 May 2021 (3 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 cores4801792
Core clock speed600 MHz2068 MHz
Boost clock speedno data2416 MHz
Number of transistors716 million11,060 million
Manufacturing process technology40 nm7 nm
Power consumption (TDP)20 Watt100 Watt
Texture fill rate14.40270.6
Floating-point processing power0.576 TFLOPS8.659 TFLOPS
ROPs1664
TMUs24112
Ray Tracing Coresno data28

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 sizeno datamedium sized
InterfacePCIe 2.0 x16PCIe 4.0 x8
Supplementary power connectorsno dataNone

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 typeGDDR3GDDR6
Maximum RAM amount1 GB8 GB
Memory bus width128 Bit128 Bit
Memory clock speed900 MHz1750 MHz
Memory bandwidth28.8 GB/s224.0 GB/s
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 outputs

API compatibility

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

DirectX11.2 (11_0)12 Ultimate (12_2)
Shader Model5.06.5
OpenGL4.44.6
OpenCL1.22.1
VulkanN/A1.3

Pros & cons summary


Recency 1 July 2012 31 May 2021
Maximum RAM amount 1 GB 8 GB
Chip lithography 40 nm 7 nm
Power consumption (TDP) 20 Watt 100 Watt

HD 7670M Rebrand has 400% lower power consumption.

RX 6600M, on the other hand, has an age advantage of 8 years, a 700% higher maximum VRAM amount, and a 471.4% more advanced lithography process.

We couldn't decide between Radeon HD 7670M Rebrand and Radeon RX 6600M. 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 7670M Rebrand
Radeon HD 7670M Rebrand
AMD Radeon RX 6600M
Radeon RX 6600M

Comparisons with similar GPUs

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Community ratings

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4 13 votes

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4.3 985 votes

Rate Radeon RX 6600M on a scale of 1 to 5:

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Questions & comments

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