Radeon HD 7970 and WinTurbo - video card comparison

Radeon HD 7970

WinTurbo

Architecture

GCN (2011−2017)

Mach (1992−1997)

GPU code name

Tahiti XT

Mach64

Market segment

Desktop

Desktop

Release date

December 2011

1995

Bus support

PCIe 2.1 x16

-

Interface

PCIe 3.0 x16

PCI

Supplementary power connectors

1x 6-pin + 1x 8-pin

-

Boost clock speed

925 MHz

-

Core clock speed

-

40 MHz

Floating-point performance

3,789 gflops

-

Manufacturing process technology

28 nm

600 nm

Number of transistors

4,313 million

1 million

Pipelines / CUDA cores

2048

-

Power consumption (TDP)

300 Watt

-

Texture fill rate

118.4

-

Memory type

GDDR5

VRAM

Maximum RAM amount

6 GB

2 MB

Memory bus width

384 Bit

64 Bit

Memory clock speed

1375 MHz

40 MHz

Memory bandwidth

264 GB/s

320.0 MB/s

Shared memory

-

-

Display Connectors

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

1x VGA

Eyefinity

+

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

N/A

Mantle

-

-

OpenCL

1.2

N/A

OpenGL

4.6

N/A

Shader Model

5.1

-

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-