Radeon 680M and L40G - video card comparison

Radeon 680M

L40G

Architecture

RDNA 2 (2020−2022)

Ada Lovelace

GPU code name

RDNA 2 Rembrandt

AD102

Market segment

Laptop

Desktop

Release date

January 2022

October 2022

Interface

PCIe 4.0 x8

PCIe 4.0 x16

Supplementary power connectors

None

1x 16-pin

Boost clock speed

2400 MHz

2475 MHz

Manufacturing process technology

6 nm

4 nm

Number of transistors

13,100 million

76,300 million

Pipelines / CUDA cores

768

18176

Power consumption (TDP)

45 Watt

300 Watt

Texture fill rate

115.2

1,406

Memory type

System Shared

GDDR6

Maximum RAM amount

System Shared

24 GB

Memory bus width

System Shared

384 Bit

Memory clock speed

System Shared

18 GB/s

Memory bandwidth

-

864.0 GB/s

Shared memory

-

-

Display Connectors

No outputs

1x HDMI 2.1, 3x DisplayPort 1.4a

HDMI

-

+

DirectX

12 (12_1)

12 Ultimate (12_2)

CUDA

-

8.9

OpenCL

2.0

3.0

OpenGL

4.6

4.6

Shader Model

6.5

6.7

Vulkan

1.2

1.3