Radeon HD 6670 and Radeon HD 7770M - video card comparison

Radeon HD 6670

Radeon HD 7770M

Architecture

TeraScale 2 (2009−2015)

GCN (2011−2017)

GPU code name

Turks

Chelsea XT

Market segment

Desktop

Laptop

Release date

April 2011

April 2012

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

None

-

Boost clock speed

800 MHz

-

Core clock speed

-

675 MHz

Floating-point performance

768.0 gflops

691.2 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

716 million

1,500 million

Pipelines / CUDA cores

480

512

Power consumption (TDP)

66 Watt

32 Watt

Texture fill rate

19.20

21.60

Memory type

GDDR5

GDDR5

Maximum RAM amount

1 GB

1 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

1050 MHz

4000 MHz

Memory bandwidth

64 GB/s

64 GB/s

Shared memory

-

-

Display Connectors

1x DVI, 1x HDMI, 1x VGA

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

-

-