G94 and R420 - video card comparison

G94

R420

Architecture

Tesla (2006−2010)

R400 (2004−2008)

GPU code name

G94

R420

Market segment

Desktop

Desktop

Release date

-

-

Manufacturing process technology

65 nm

130 nm

Number of transistors

505 million

160 million

Pipelines / CUDA cores

64

-

DirectX

11.1 (10_0)

9.0b (9_2)

CUDA

1.1

-

OpenCL

1.1

N/A

OpenGL

3.3

2.1

Shader Model

4.0

-

Vulkan

N/A

N/A

PureVideo HD

VP2

-