GK208B and R423 - video card comparison

GK208B

R423

Architecture

Kepler 2.0 (2013−2015)

R400 (2004−2008)

GPU code name

GK208B

R423

Market segment

Desktop

Desktop

Release date

-

-

Manufacturing process technology

28 nm

130 nm

Number of transistors

1,020 million

160 million

Pipelines / CUDA cores

384

-

DirectX

12 (11_0)

9.0b (9_2)

CUDA

3.5

-

OpenCL

3.0

N/A

OpenGL

4.6

2.1

Shader Model

6.5 (5.1)

-

Vulkan

1.2.175

N/A

NVENC

No Support

-

PureVideo HD

VP5

-