Radeon HD 3750 and Radeon HD 6450 - video card comparison

Radeon HD 3750

Radeon HD 6450

Architecture

TeraScale (2005−2013)

TeraScale 2 (2009−2015)

GPU code name

RV635

Caicos

Market segment

Desktop

Desktop

Release date

September 2008

April 2011

Bus support

-

PCIe 2.0 x8

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

None

None

Boost clock speed

-

750 MHz

Core clock speed

796 MHz

-

Floating-point performance

191.04 gflops

200.0 gflops

Manufacturing process technology

55 nm

40 nm

Number of transistors

378 million

370 million

Pipelines / CUDA cores

120

160

Power consumption (TDP)

65 Watt

30 Watt

Texture fill rate

6.368

5.000

Memory type

GDDR3

GDDR5

Maximum RAM amount

512 MB

1 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

1386 MHz

800 MHz

Memory bandwidth

22.18 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

N/A

1.2

OpenGL

3.3

4.4

Shader Model

4.1

5.0

Vulkan

N/A

-

AppAcceleration

-

-

CrossFire

-

1

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-