Radeon HD 6750 and GeForce GT 420 OEM - video card comparison

Radeon HD 6750

GeForce GT 420 OEM

Architecture

TeraScale 2 (2009−2015)

Fermi (2010−2014)

GPU code name

Juniper

GF108

Market segment

Desktop

Desktop

Release date

January 2011

September 2010

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

None

Boost clock speed

900 MHz

-

Core clock speed

-

700 MHz

Floating-point performance

1,008.0 gflops

134.4 gflops

Manufacturing process technology

40 nm

40 nm

Number of transistors

1,040 million

585 million

Pipelines / CUDA cores

720

48

Power consumption (TDP)

86 Watt

50 Watt

Texture fill rate

25.20

2.800

Memory type

GDDR5

DDR3

Maximum RAM amount

2 GB

1 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

1050 MHz

1800 MHz

Memory bandwidth

73.6 GB/s

28.8 GB/s

Display Connectors

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

1x DVI, 1x HDMI, 1x VGA

Eyefinity

1

-

HDMI

+

+

DisplayPort support

-

-

DirectX

DirectX® 11

12 (11_0)

CUDA

-

2.1

Mantle

-

-

OpenCL

1.2

1.1

OpenGL

4.4

4.6

Shader Model

5.0

5.1

Vulkan

-

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-