Radeon HD 6950 and Radeon RX 550X Mobile - video card comparison

Radeon HD 6950

Radeon RX 550X Mobile

Architecture

TeraScale 3 (2010−2013)

Polaris (2016−2019)

GPU code name

Cayman

Polaris 12

Market segment

Desktop

Laptop

Release date

December 2010

January 2019

Bus support

PCIe 2.0 x16

-

Interface

PCIe 2.0 x16

PCIe 3.0 x8

Supplementary power connectors

2x 6-pin

-

Boost clock speed

800 MHz

1287 MHz

Core clock speed

-

1176 MHz

Floating-point performance

2,252.8 gflops

-

Manufacturing process technology

40 nm

14 nm

Number of transistors

2,640 million

2,200 million

Pipelines / CUDA cores

1408

640

Power consumption (TDP)

500 Watt

50 Watt

Texture fill rate

70.40

51.48

Memory type

GDDR5

GDDR5

Maximum RAM amount

2 GB

4 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

1250 MHz

7000 MHz

Memory bandwidth

-

96 GB/s

Shared memory

-

-

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

6.4

Vulkan

-

1.2.131

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

-

+

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-