Radeon HD 7870 and GeForce GTX 490 - video card comparison

Radeon HD 7870

GeForce GTX 490

Architecture

GCN (2011−2017)

Fermi (2010−2014)

GPU code name

Pitcairn XT

GF100

Market segment

Desktop

Release date

March 2012

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

2x 8-pin

Core clock speed

1000 MHz

608 MHz

Manufacturing process technology

28 nm

40 nm

Number of transistors

2800 Million

3,100 million

Pipelines / CUDA cores

1280

480

Power consumption (TDP)

175 Watt

365 Watt

Texture fill rate

80.00

36.48

Memory type

GDDR5

Maximum RAM amount

2 GB

1536 MB

Memory bus width

256 Bit

384 Bit

Memory clock speed

4800 MHz

3.4 GB/s

Memory bandwidth

153.6 GB/s

164.0 GB/s

Shared memory

Display Connectors

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

3x DVI, 1x mini-DisplayPort

Eyefinity

HDMI

DirectX

12 (11_1)

12 (11_0)

CUDA

2.0

OpenCL

1.2

1.1

OpenGL

4.6

Shader Model

5.1

Vulkan

1.2.131

N/A