Radeon X1950 XT and Radeon HD 6450 - video card comparison

Radeon X1950 XT

Radeon HD 6450

Architecture

R500 (2005−2007)

TeraScale 2 (2009−2015)

GPU code name

R580+

Caicos

Market segment

Desktop

Desktop

Release date

October 2006

April 2011

Bus support

-

PCIe 2.0 x8

Interface

PCIe 1.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

None

Boost clock speed

-

750 MHz

Core clock speed

625 MHz

-

Floating-point performance

-

200.0 gflops

Manufacturing process technology

90 nm

40 nm

Number of transistors

384 million

370 million

Pipelines / CUDA cores

-

160

Power consumption (TDP)

96 Watt

30 Watt

Texture fill rate

10.00

5.000

Memory type

GDDR3

GDDR5

Maximum RAM amount

256 MB

1 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

1800 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

9.0c (9_3)

DirectX® 11

Mantle

-

-

OpenCL

N/A

1.2

OpenGL

2.0

4.4

Shader Model

3.0

5.0

Vulkan

N/A

-

AppAcceleration

-

-

CrossFire

-

1

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-