R423 and NV28 A2 - video card comparison

R423

NV28 A2

Architecture

R400 (2004−2008)

Kelvin (2001−2003)

GPU code name

R423

NV28 A2

Market segment

Desktop

Desktop

Release date

-

-

Manufacturing process technology

130 nm

150 nm

Number of transistors

160 million

36 million

DirectX

9.0b (9_2)

8.1

OpenCL

N/A

N/A

OpenGL

2.1

1.3

Vulkan

N/A

N/A