Radeon HD 6870 X2 and NV37 - video card comparison

Radeon HD 6870 X2

NV37

Architecture

TeraScale 2 (2009−2015)

Rankine (2003−2005)

GPU code name

Barts

NV37

Market segment

Desktop

Release date

July 2011

Interface

PCIe 2.0 x16

Core clock speed

900 MHz

Floating-point performance

2x 2,016.0 gflops

Manufacturing process technology

40 nm

150 nm

Number of transistors

1,700 million

45 million

Pipelines / CUDA cores

1120

Power consumption (TDP)

300 Watt

Texture fill rate

50.40

Memory type

GDDR5

Maximum RAM amount

1 GB

Memory bus width

256 Bit

Memory clock speed

4200 MHz

Memory bandwidth

134.4 GB/s

Display Connectors

2x DVI, 1x HDMI, 2x mini-DisplayPort

HDMI

DirectX

11.2 (11_0)

9.0a

OpenCL

1.2

N/A

OpenGL

4.4

1.5 (full) Shader Model5.0-

Vulkan

N/A