Radeon HD 6450 GDDR5 and GeForce 7800 GTX - video card comparison

Radeon HD 6450 GDDR5

GeForce 7800 GTX

Architecture

Terascale 2 (2009−2015)

Curie (2003−2013)

GPU code name

Caicos

G70

Market segment

Desktop

Desktop

Release date

April 2011

June 2005

Interface

-

PCIe 1.0 x16

Core clock speed

750 MHz

430 MHz

Manufacturing process technology

40 nm

110 nm

Number of transistors

-

302 million

Pipelines / CUDA cores

160

-

Power consumption (TDP)

27 Watt

86 Watt

Texture fill rate

-

10.32

Memory type

GDDR5

GDDR3

Maximum RAM amount

1 GB

256 MB

Memory bus width

64 Bit

256 Bit

Memory clock speed

900 MHz

1200 MHz

Memory bandwidth

-

38.4 GB/s

Shared memory

-

-

Display Connectors

-

2x DVI, 1x S-Video

DirectX

11

9.0c (9_3)

OpenCL

-

N/A

OpenGL

-

2.1

Shader Model

-

3.0

Vulkan

-

N/A