Radeon HD 7970 and i752 - video card comparison

Radeon HD 7970

i752

Architecture

GCN (2011−2017)

Generation 1.0 (1998−2002)

GPU code name

Tahiti XT

Portola

Market segment

Desktop

Desktop

Release date

December 2011

April 1999

Bus support

PCIe 2.1 x16

-

Interface

PCIe 3.0 x16

AGP 2x

Supplementary power connectors

1x 6-pin + 1x 8-pin

-

Boost clock speed

925 MHz

-

Core clock speed

-

100 MHz

Floating-point performance

3,789 gflops

-

Manufacturing process technology

28 nm

150 nm

Number of transistors

4,313 million

-

Pipelines / CUDA cores

2048

-

Power consumption (TDP)

300 Watt

-

Texture fill rate

118.4

0.1

Memory type

GDDR5

SDR

Maximum RAM amount

6 GB

16 MB

Memory bus width

384 Bit

64 Bit

Memory clock speed

1375 MHz

133 MHz

Memory bandwidth

264 GB/s

1.064 GB/s

Shared memory

-

-

Display Connectors

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

1x VGA, 2x S-Video

Eyefinity

+

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

7.0

Mantle

-

-

OpenCL

1.2

N/A

OpenGL

4.6

1.2

Shader Model

5.1

-

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-