Radeon HD 6870 and GeForce GTX 260 Rev. 2 - video card comparison

Radeon HD 6870

GeForce GTX 260 Rev. 2

Architecture

Terascale 2 (2009−2015)

Tesla 2.0 (2007−2013)

GPU code name

RV940 Barts

GT200B

Market segment

Desktop

Desktop

Release date

October 2010

July 2008

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

2x 6-pin

Boost clock speed

900 MHz

-

Core clock speed

-

576 MHz

Floating-point performance

2,016.0 gflops

476.9 gflops

Manufacturing process technology

40 nm

55 nm

Number of transistors

1,700 million

1,400 million

Pipelines / CUDA cores

1120

192

Power consumption (TDP)

151 Watt

182 Watt

Texture fill rate

50.40

36.86

Memory type

GDDR5

GDDR3

Maximum RAM amount

1 GB

896 MB

Memory bus width

256 Bit

448 Bit

Memory clock speed

1050 MHz

1998 MHz

Memory bandwidth

134.4 GB/s

111.9 GB/s

Shared memory

-

-

Display Connectors

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

2x DVI, 1x S-Video

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

11.1 (10_0)

CUDA

-

1.3

Mantle

-

-

OpenCL

1.2

1.1

OpenGL

4.4

3.3

Shader Model

5.0

4.0

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-