Radeon HD 6450 and Radeon R4 Graphics - video card comparison

Radeon HD 6450

Radeon R4 Graphics

Architecture

TeraScale 2 (2009−2015)

GCN 2.0 (2013−2017)

GPU code name

Caicos

Beema

Market segment

Desktop

Desktop

Release date

April 2011

June 2014

Bus support

PCIe 2.0 x8

-

Interface

PCIe 2.0 x16

IGP

Supplementary power connectors

None

-

Boost clock speed

750 MHz

-

Core clock speed

-

800 MHz

Floating-point performance

200.0 gflops

204.8 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

370 million

930 million

Pipelines / CUDA cores

160

128

Power consumption (TDP)

30 Watt

15 Watt

Texture fill rate

5.000

6.400

Memory type

GDDR5

System Shared

Maximum RAM amount

1 GB

System Shared

Memory bus width

64 Bit

System Shared

Memory clock speed

800 MHz

System Shared

Memory bandwidth

25.6 GB/s

-

Memory bandwidth

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

-

Display Connectors

1x DVI, 1x HDMI, 1x VGA

No outputs

Eyefinity

1

-

Number of Eyefinity displays

4

-

HDMI

+

-

DisplayPort support

+

-

DirectX

DirectX® 11

12 (12_0)

Mantle

-

-

OpenCL

1.2

2.0

OpenGL

4.4

4.6

Shader Model

5.0

6.3

Vulkan

-

1.2.131

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-