GM20B and Radeon 780M - video card comparison

GM20B

Radeon 780M

Architecture

Maxwell 2.0 (2015−2019)

RDNA 3

GPU code name

GM20B

Phoenix

Market segment

Desktop

Laptop

Release date

-

January 2023

Interface

-

PCIe 4.0 x8

Supplementary power connectors

-

None

Boost clock speed

-

3000 MHz

Core clock speed

-

1500 MHz

Manufacturing process technology

20 nm

4 nm

Number of transistors

2,000 million

25,390 million

Pipelines / CUDA cores

256

768

Power consumption (TDP)

-

54 Watt (35 - 54 Watt TGP)

Texture fill rate

-

139.2

Memory type

-

System Shared

Maximum RAM amount

-

System Shared

Memory bus width

-

System Shared

Memory clock speed

-

System Shared

Shared memory

-

+

Display Connectors

-

Portable Device Dependent

DirectX

12 (12_1)

12 Ultimate (12_2)

CUDA

5.3

-

OpenCL

1.2

2.1

OpenGL

4.6

4.6

Shader Model

6.0

6.7

Vulkan

1.1

1.3

PureVideo HD

VP9

-