Radeon HD 7870 and Graphics Ultra - video card comparison

Radeon HD 7870

Graphics Ultra

Architecture

GCN (2011−2017)

Mach (1992−1997)

GPU code name

Pitcairn XT

Mach8

Market segment

Desktop

Release date

March 2012

1992

Interface

PCIe 3.0 x16

ISA 16 Bit

Supplementary power connectors

2x 6-pin

None

Core clock speed

1000 MHz

10 MHz

Manufacturing process technology

28 nm

800 nm

Number of transistors

2800 Million

Pipelines / CUDA cores

1280

Power consumption (TDP)

175 Watt

Texture fill rate

80.00

Memory type

GDDR5

VRAM

Maximum RAM amount

2 GB

1 MB

Memory bus width

256 Bit

32 Bit

Memory clock speed

4800 MHz

10 MHz

Memory bandwidth

153.6 GB/s

40 MB/s

Shared memory

Display Connectors

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

1x VGA

Eyefinity

HDMI

DirectX

12 (11_1)

N/A

OpenCL

1.2

N/A

OpenGL

4.6

N/A

Shader Model

5.1

Vulkan

1.2.131

N/A