Radeon HD 6950 and Radeon HD 8670A - video card comparison

Radeon HD 6950

Radeon HD 8670A

Architecture

TeraScale 3 (2010−2013)

GCN 1.0 (2012−2020)

GPU code name

Cayman

Sun

Market segment

Desktop

Desktop

Release date

December 2010

February 2013

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

MXM-A (3.0)

Supplementary power connectors

2x 6-pin

-

Boost clock speed

800 MHz

-

Core clock speed

-

600 MHz

Floating-point performance

2,252.8 gflops

384.0 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

2,640 million

690 million

Pipelines / CUDA cores

1408

320

Power consumption (TDP)

500 Watt

45 Watt

Texture fill rate

70.40

12.00

Memory type

GDDR5

DDR3

Maximum RAM amount

2 GB

1 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

1250 MHz

2000 MHz

Memory bandwidth

-

16 GB/s

Display Connectors

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

No outputs

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

12 (11_1)

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.4

4.6

Shader Model

5.0

5.1

Vulkan

-

1.2.131

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-