Radeon HD 7970 and Radeon 3000 IGP - video card comparison

Radeon HD 7970

Radeon 3000 IGP

Architecture

GCN (2011−2017)

TeraScale (2005−2013)

GPU code name

Tahiti XT

RS780

Market segment

Desktop

Desktop

Release date

December 2011

2009

Bus support

PCIe 2.1 x16

-

Interface

PCIe 3.0 x16

PCIe 1.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

-

Boost clock speed

925 MHz

-

Core clock speed

-

350 MHz

Floating-point performance

3,789 gflops

-

Manufacturing process technology

28 nm

65 nm

Number of transistors

4,313 million

180 million

Pipelines / CUDA cores

2048

40

Power consumption (TDP)

300 Watt

-

Texture fill rate

118.4

1.400

Memory type

GDDR5

System Shared

Maximum RAM amount

6 GB

System Shared

Memory bus width

384 Bit

System Shared

Memory clock speed

1375 MHz

System Shared

Memory bandwidth

264 GB/s

-

Shared memory

-

-

Display Connectors

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

Motherboard Dependent

Eyefinity

+

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

10.0 (10_0)

Mantle

-

-

OpenCL

1.2

1.0

OpenGL

4.6

3.3

Shader Model

5.1

4.1

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-