Radeon HD 6930 and Radeon R7 250 - video card comparison

Radeon HD 6930

Radeon R7 250

Architecture

TeraScale 3 (2010−2013)

GCN (2011−2017)

GPU code name

Cayman

Oland XT

Market segment

Desktop

Desktop

Release date

December 2011

October 2013

Bus support

-

PCIe 3.0

Interface

PCIe 2.0 x16

PCIe 3.0 x8

Supplementary power connectors

2x 6-pin

N/A

Boost clock speed

-

1050 MHz

Core clock speed

750 MHz

-

Floating-point performance

1,920.0 gflops

716.8 gflops

Manufacturing process technology

40 nm

28 nm

Number of transistors

2,640 million

950 million

Pipelines / CUDA cores

1280

384

Power consumption (TDP)

186 Watt

75 Watt

Texture fill rate

60.00

25.20

Memory type

GDDR5

DDR3, GDDR5

Maximum RAM amount

1 GB

2 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

4800 MHz

1150 MHz

Memory bandwidth

153.6 GB/s

72 GB/s

Shared memory

-

-

Display Connectors

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

1x DVI, 1x HDMI, 1x VGA

HDMI

+

+

DisplayPort support

-

-

DirectX

11.2 (11_0)

DirectX® 12

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.4

4.6

Shader Model

5.0

5.1

Vulkan

N/A

-

AppAcceleration

-

+

CrossFire

-

1

DDMA audio

-

+

Enduro

-

-

FreeSync

-

1

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-