Radeon HD 7970 GHz Edition and Radeon 780M - video card comparison

Radeon HD 7970 GHz Edition

Radeon 780M

Architecture

GCN 1.0 (2012−2020)

RDNA 3

GPU code name

Tahiti

Phoenix

Market segment

Desktop

Laptop

Release date

June 2012

January 2023

Bus support

PCIe 2.1 x16

-

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Boost clock speed

1050 MHz

3000 MHz

Core clock speed

-

1500 MHz

Floating-point performance

4,301 gflops

-

Manufacturing process technology

28 nm

4 nm

Number of transistors

4,313 million

25,390 million

Pipelines / CUDA cores

2048

768

Power consumption (TDP)

250 Watt

54 Watt (35 - 54 Watt TGP)

Texture fill rate

134.4

139.2

Memory type

GDDR5

System Shared

Maximum RAM amount

3 GB

System Shared

Memory bus width

384 Bit

System Shared

Memory clock speed

1500 MHz

System Shared

Memory bandwidth

288 GB/s

-

Shared memory

-

+

Display Connectors

1x DVI, 1x HDMI, 2x mini-DisplayPort

Portable Device Dependent

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

12 Ultimate (12_2)

Mantle

-

-

OpenCL

1.2

2.1

OpenGL

4.6

4.6

Shader Model

5.1

6.7

Vulkan

-

1.3

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-