Radeon R9 M390 and Radeon HD 6970M - video card comparison

Radeon R9 M390

Radeon HD 6970M

Architecture

GCN (2011−2017)

Terascale 2 (2009−2015)

GPU code name

Pitcairn

Blackcomb XT

Market segment

Laptop

Laptop

Release date

June 2015

January 2011

Bus support

PCIe 3.0

-

Interface

-

MXM-B (3.0)

Supplementary power connectors

-

None

Core clock speed

-

680 MHz

Floating-point performance

-

1,305.6 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

5000 Million

1,700 million

Pipelines / CUDA cores

1024

960

Power consumption (TDP)

-

75-100 Watt

Texture fill rate

-

32.64

Memory type

GDDR5

GDDR5

Maximum RAM amount

2 GB

2 GB

Memory bus width

256 Bit

256 Bit

Memory clock speed

-

900 MHz

Memory bandwidth

-

115.2 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

Eyefinity

1

-

DirectX

DirectX® 12

11.2 (11_0)

Mantle

+

-

OpenCL

Not Listed

1.2

OpenGL

4.4

4.4

Shader Model

-

5.0

Vulkan

-

N/A

AppAcceleration

-

-

DualGraphics

1

-

Enduro

-

-

FreeSync

1

-

HD3D

+

-

PowerTune

+

-

Switchable graphics

1

-

TrueAudio

-

-

ZeroCore

+

-