Radeon RX 6600S and Radeon R9 390X2 - video card comparison

Radeon RX 6600S

Radeon R9 390X2

Architecture

RDNA 2 (2020−2022)

GCN (2011−2017)

GPU code name

Navi 23

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Market segment

Laptop

Desktop

Release date

January 2022

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Interface

PCIe 4.0 x8

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Supplementary power connectors

None

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Boost clock speed

1881 MHz

1000 MHz

Manufacturing process technology

7 nm

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Number of transistors

11,060 million

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Pipelines / CUDA cores

1792

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Power consumption (TDP)

80 Watt

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Texture fill rate

224.0

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Memory type

GDDR6

512

Maximum RAM amount

4 GB

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Memory bus width

128 Bit

5400 Bit

Memory clock speed

16000 MHz

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Memory bandwidth

224.0 GB/s

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Shared memory

-

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Display Connectors

No outputs

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DirectX

12.0 Ultimate (12_2)

GDDR5

OpenCL

2.1

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OpenGL

4.6

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Shader Model

6.5

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Vulkan

1.2

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