Radeon HD 6770 and Radeon RX 550X 640SP - video card comparison

Radeon HD 6770

Radeon RX 550X 640SP

Architecture

TeraScale 2 (2009−2015)

GCN 4.0 (2016−2020)

GPU code name

Juniper

Baffin

Market segment

Desktop

Desktop

Release date

January 2011

April 2018

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

PCIe 3.0 x8

Supplementary power connectors

1x 6-pin

None

Boost clock speed

900 MHz

1071 MHz

Core clock speed

-

1019 MHz

Floating-point performance

1,360.0 gflops

1,371 gflops

Manufacturing process technology

40 nm

14 nm

Number of transistors

1,040 million

3,000 million

Pipelines / CUDA cores

800

640

Power consumption (TDP)

108 Watt

60 Watt

Texture fill rate

34.00

42.84

Memory type

GDDR5

GDDR5

Maximum RAM amount

1 GB

2 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

1050 MHz

6000 MHz

Memory bandwidth

76.8 GB/s

96 GB/s

Display Connectors

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

1x DVI, 1x HDMI, 1x DisplayPort

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

6.4

Vulkan

-

1.2.131

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-