Radeon R9 M280X and Radeon HD 6990M - video card comparison

Radeon R9 M280X

Radeon HD 6990M

Architecture

GCN (2011−2017)

Terascale 2 (2009−2015)

GPU code name

Saturn XT

Blackcomb XTX

Market segment

Laptop

Laptop

Release date

February 2015

July 2011

Bus support

Not Listed

-

Interface

PCIe 3.0 x16

MXM-B (3.0)

Supplementary power connectors

-

None

Core clock speed

900 MHz

715 MHz

Floating-point performance

1,792 gflops

1,601.6 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

2,080 million

1,700 million

Pipelines / CUDA cores

896

1120

Power consumption (TDP)

-

100 Watt

Texture fill rate

61.60

40.04

Memory type

Not Listed

GDDR5

Maximum RAM amount

0 MB

2 GB

Memory bus width

Not Listed

256 Bit

Memory clock speed

-

900 MHz

Memory bandwidth

96 GB/s

115.2 GB/s

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

DirectX® 11

11.2 (11_0)

Mantle

+

-

OpenCL

Not Listed

1.2

OpenGL

4.4

4.4

Shader Model

6.3

5.0

Vulkan

-

N/A

AppAcceleration

-

-

DualGraphics

1

-

Enduro

-

-

FreeSync

1

-

HD3D

+

-

PowerTune

+

-

Switchable graphics

1

-

TrueAudio

-

-

ZeroCore

+

-