Radeon HD 7850 and Radeon HD 6850M - video card comparison

Radeon HD 7850

Radeon HD 6850M

Architecture

GCN 1.0 (2012−2020)

Terascale 2 (2009−2015)

GPU code name

Pitcairn

Granville Pro/LP

Market segment

Desktop

Laptop

Release date

March 2012

January 2011

Bus support

PCIe 2.1 x16

-

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

-

Boost clock speed

1000 MHz

-

Core clock speed

-

575 / 675 MHz

Floating-point performance

1,761 gflops

1,080.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

2,800 million

1,040 million

Pipelines / CUDA cores

1024

800

Power consumption (TDP)

130 Watt

50 Watt

Texture fill rate

55.04

27.00

Memory type

GDDR5

DDR3, GDDR5

Maximum RAM amount

2 GB

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

1200 MHz

800 MHz

Memory bandwidth

153.6 GB/s

25.6 GB/s

Shared memory

-

-

Display Connectors

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

No outputs

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

12

11.2 (11_0)

Mantle

-

-

OpenCL

1.2

1.2

OpenGL

4.6

4.4

Shader Model

5.1

5.0

Vulkan

+

N/A

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-