Radeon HD 8970M and Radeon R9 M390 - video card comparison

Radeon HD 8970M

Radeon R9 M390

Architecture

GCN (2011−2017)

GCN (2011−2017)

GPU code name

Neptune

Pitcairn

Market segment

Laptop

Laptop

Release date

May 2013

June 2015

Bus support

-

PCIe 3.0

Interface

PCIe 3.0 x16

-

Boost clock speed

900 MHz

-

Core clock speed

850 MHz

-

Floating-point performance

2,304 gflops

-

Manufacturing process technology

28 nm

28 nm

Number of transistors

2,800 million

5000 Million

Pipelines / CUDA cores

1280

1024

Power consumption (TDP)

100 Watt

-

Texture fill rate

72.00

-

Memory type

GDDR5

GDDR5

Maximum RAM amount

4 GB

2 GB

Memory bus width

256 Bit

256 Bit

Memory clock speed

4800 MHz

-

Memory bandwidth

153.6 GB/s

-

Shared memory

-

-

Display Connectors

No outputs

-

Eyefinity

-

1

DirectX

12 (11_1)

DirectX® 12

Mantle

-

+

OpenCL

1.2

Not Listed

OpenGL

4.6

4.4

Shader Model

5.1

-

Vulkan

1.2.131

-

AppAcceleration

-

-

DualGraphics

-

1

Enduro

-

-

FreeSync

-

1

HD3D

-

+

PowerTune

-

+

Switchable graphics

-

1

TrueAudio

-

-

ZeroCore

-

+