Tahiti and Radeon HD 7850 - video card comparison

Tahiti

Radeon HD 7850

Architecture

GCN 1.0 (2012−2020)

GCN 1.0 (2012−2020)

GPU code name

Tahiti

Pitcairn

Market segment

Desktop

Desktop

Release date

-

March 2012

Bus support

-

PCIe 2.1 x16

Interface

-

PCIe 3.0 x16

Supplementary power connectors

-

1x 6-pin

Boost clock speed

-

1000 MHz

Floating-point performance

-

1,761 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

4,313 million

2,800 million

Pipelines / CUDA cores

2048

1024

Power consumption (TDP)

-

130 Watt

Texture fill rate

-

55.04

Memory type

-

GDDR5

Maximum RAM amount

-

2 GB

Memory bus width

-

256 Bit

Memory clock speed

-

1200 MHz

Memory bandwidth

-

153.6 GB/s

Display Connectors

-

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

Eyefinity

-

1

HDMI

-

+

DisplayPort support

-

-

DirectX

12 (11_1)

12

Mantle

-

-

OpenCL

2.1 (1.2)

1.2

OpenGL

4.6

4.6

Shader Model

6.5 (5.1)

5.1

Vulkan

1.2.170

+

AppAcceleration

-

-

CrossFire

-

1

Enduro

-

-

FreeSync

-

1

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-