Radeon HD 6770 and Radeon R7 Graphics - video card comparison

Radeon HD 6770

Radeon R7 Graphics

Architecture

TeraScale 2 (2009−2015)

GCN 2.0 (2013−2017)

GPU code name

Juniper

Spectre

Market segment

Desktop

Desktop

Release date

January 2011

January 2014

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

IGP

Supplementary power connectors

1x 6-pin

-

Boost clock speed

900 MHz

980 MHz

Core clock speed

-

686 MHz

Floating-point performance

1,360.0 gflops

526.8 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

1,040 million

2,410 million

Pipelines / CUDA cores

800

512

Power consumption (TDP)

108 Watt

15 Watt

Texture fill rate

34.00

31.36

Memory type

GDDR5

System Shared

Maximum RAM amount

1 GB

System Shared

Memory bus width

128 Bit

System Shared

Memory clock speed

1050 MHz

System Shared

Memory bandwidth

76.8 GB/s

-

Display Connectors

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

No outputs

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

12 (12_0)

Mantle

-

-

OpenCL

1.2

2.0

OpenGL

4.4

4.6

Shader Model

5.0

6.0

Vulkan

-

1.2.131

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-