Radeon HD 6930 and Radeon HD 6770 - video card comparison

Radeon HD 6930

Radeon HD 6770

Architecture

TeraScale 3 (2010−2013)

TeraScale 2 (2009−2015)

GPU code name

Cayman

Juniper

Market segment

Desktop

Desktop

Release date

December 2011

January 2011

Bus support

-

PCIe 2.0 x16

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

1x 6-pin

Boost clock speed

-

900 MHz

Core clock speed

750 MHz

-

Floating-point performance

1,920.0 gflops

1,360.0 gflops

Manufacturing process technology

40 nm

40 nm

Number of transistors

2,640 million

1,040 million

Pipelines / CUDA cores

1280

800

Power consumption (TDP)

186 Watt

108 Watt

Texture fill rate

60.00

34.00

Memory type

GDDR5

GDDR5

Maximum RAM amount

1 GB

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

4800 MHz

1050 MHz

Memory bandwidth

153.6 GB/s

76.8 GB/s

Display Connectors

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

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

Eyefinity

-

1

HDMI

+

+

DisplayPort support

-

-

DirectX

11.2 (11_0)

DirectX® 11

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.4

4.4

Shader Model

5.0

5.0

Vulkan

N/A

-

AppAcceleration

-

-

CrossFire

-

1

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-