Radeon HD 6870 and GeForce GT 340 OEM - video card comparison

Radeon HD 6870

GeForce GT 340 OEM

Architecture

Terascale 2 (2009−2015)

Tesla 2.0 (2007−2013)

GPU code name

RV940 Barts

GT215

Market segment

Desktop

Desktop

Release date

October 2010

February 2010

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

None

Boost clock speed

900 MHz

-

Core clock speed

-

550 MHz

Floating-point performance

2,016.0 gflops

257.28 gflops

Manufacturing process technology

40 nm

40 nm

Number of transistors

1,700 million

727 million

Pipelines / CUDA cores

1120

96

Power consumption (TDP)

151 Watt

69 Watt

Texture fill rate

50.40

17.60

Memory type

GDDR5

GDDR3

Maximum RAM amount

1 GB

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

1050 MHz

1700 MHz

Memory bandwidth

134.4 GB/s

27.2 GB/s

Shared memory

-

-

Display Connectors

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

1x DVI, 1x HDMI, 1x VGA

Eyefinity

1

-

HDMI

+

+

DisplayPort support

-

-

DirectX

DirectX® 11

11.1 (10_1)

CUDA

-

1.2

Mantle

-

-

OpenCL

1.2

1.1

OpenGL

4.4

3.3

Shader Model

5.0

4.1

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-