Radeon HD 7970 and Radeon HD 7670 OEM - video card comparison

Radeon HD 7970

Radeon HD 7670 OEM

Architecture

GCN (2011−2017)

TeraScale 2 (2009−2015)

GPU code name

Tahiti XT

Turks

Market segment

Desktop

Desktop

Release date

December 2011

January 2012

Bus support

PCIe 2.1 x16

-

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Boost clock speed

925 MHz

-

Core clock speed

-

800 MHz

Floating-point performance

3,789 gflops

768.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

4,313 million

716 million

Pipelines / CUDA cores

2048

480

Power consumption (TDP)

300 Watt

66 Watt

Texture fill rate

118.4

19.20

Memory type

GDDR5

GDDR5

Maximum RAM amount

6 GB

512 MB

Memory bus width

384 Bit

128 Bit

Memory clock speed

1375 MHz

4000 MHz

Memory bandwidth

264 GB/s

64 GB/s

Shared memory

-

-

Display Connectors

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

1x DVI, 1x DisplayPort, 1x VGA

Eyefinity

+

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

11.2 (11_0)

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.6

4.4

Shader Model

5.1

5.0

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-