RTX A40 and Radeon RX 6600M - video card comparison

RTX A40

Radeon RX 6600M

Architecture

Ampere (2020−2022)

RDNA 2 (2020−2022)

GPU code name

GA102

R21M-E65-70

Market segment

Desktop

Laptop

Release date

October 2020

September 2020

Interface

PCIe 4.0 x16

PCIe 4.0 x8

Supplementary power connectors

8-pin EPS

None

Boost clock speed

1755 MHz

2177 MHz

Core clock speed

-

2068 MHz

Manufacturing process technology

8 nm

7 nm

Number of transistors

28,300 million

11,060 million

Pipelines / CUDA cores

10752

1792

Power consumption (TDP)

300 Watt

100 Watt (50 - 100 Watt TGP)

Texture fill rate

589.7

235.8

Memory type

GDDR6

GDDR6

Maximum RAM amount

48 GB

8 GB

Memory bus width

384 Bit

128 Bit

Memory clock speed

14.5 GB/s

14000 MHz

Memory bandwidth

695.8 GB/s

256.0 GB/s

Shared memory

-

-

Display Connectors

3x DisplayPort

No outputs

DirectX

12 Ultimate (12_2)

12 Ultimate (12_2)

CUDA

8.6

-

OpenCL

2.0

2.1

OpenGL

4.6

4.6

Shader Model

6.5

6.5

Vulkan

1.2

1.2