R680 and NV28 A1 - video card comparison

R680

NV28 A1

Architecture

TeraScale (2005−2013)

Kelvin (2001−2003)

GPU code name

R680

NV28 A1

Market segment

Desktop

Desktop

Release date

-

-

Manufacturing process technology

55 nm

150 nm

Number of transistors

666 million

36 million

Pipelines / CUDA cores

320

-

DirectX

10.1 (10_1)

8.1

OpenCL

N/A

N/A

OpenGL

3.3 (full) Shader Model

4.1-

Vulkan

N/A

N/A