Radeon HD 4860 and Radeon HD 6670 - video card comparison

Radeon HD 4860

Radeon HD 6670

Architecture

TeraScale (2005−2013)

TeraScale 2 (2009−2015)

GPU code name

RV790

Turks

Market segment

Desktop

Desktop

Release date

September 2009

April 2011

Bus support

-

PCIe 2.0 x16

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

None

Boost clock speed

-

800 MHz

Core clock speed

700 MHz

-

Floating-point performance

896.0 gflops

768.0 gflops

Manufacturing process technology

55 nm

40 nm

Number of transistors

959 million

716 million

Pipelines / CUDA cores

640

480

Power consumption (TDP)

130 Watt

66 Watt

Texture fill rate

22.40

19.20

Memory type

GDDR5

GDDR5

Maximum RAM amount

512 MB

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

3000 MHz

1050 MHz

Memory bandwidth

96 GB/s

64 GB/s

Display Connectors

2x DVI, 1x S-Video

1x DVI, 1x HDMI, 1x VGA

Eyefinity

-

1

HDMI

-

+

DisplayPort support

-

-

DirectX

10.1 (10_1)

DirectX® 11

Mantle

-

-

OpenCL

1.1

1.2

OpenGL

3.3

4.4

Shader Model

4.1

5.0

Vulkan

N/A

-

AppAcceleration

-

-

CrossFire

-

1

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-