R520 and NV38 - video card comparison

R520

NV38

Architecture

Ultra-Threaded SE

Rankine (2003−2005)

GPU code name

R520

NV38

Market segment

Desktop

Desktop

Release date

-

-

Manufacturing process technology

90 nm

130 nm

Number of transistors

312 million

135 million

DirectX

9.0c (9_3)

9.0a

OpenCL

N/A

N/A

OpenGL

2.1

1.5 (full) Shader Model3.0-

Vulkan

N/A

N/A