Radeon HD 4730 and Radeon HD 6450 - video card comparison

Radeon HD 4730

Radeon HD 6450

Architecture

TeraScale (2005−2013)

TeraScale 2 (2009−2015)

GPU code name

RV770

Caicos

Market segment

Desktop

Desktop

Release date

June 2009

April 2011

Bus support

-

PCIe 2.0 x8

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

None

Boost clock speed

-

750 MHz

Core clock speed

750 MHz

-

Floating-point performance

960.0 gflops

200.0 gflops

Manufacturing process technology

55 nm

40 nm

Number of transistors

956 million

370 million

Pipelines / CUDA cores

640

160

Power consumption (TDP)

110 Watt

30 Watt

Texture fill rate

24.00

5.000

Memory type

GDDR5

GDDR5

Maximum RAM amount

512 MB

1 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

3600 MHz

800 MHz

Memory bandwidth

57.6 GB/s

25.6 GB/s

Memory bandwidth

-

8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)

Display Connectors

2x DVI, 1x S-Video

1x DVI, 1x HDMI, 1x VGA

Eyefinity

-

1

Number of Eyefinity displays

-

4

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

-

-