Radeon HD 7790 and Radeon HD 8470 OEM - video card comparison

Radeon HD 7790

Radeon HD 8470 OEM

Architecture

GCN 2.0 (2013−2017)

TeraScale 2 (2009−2015)

GPU code name

Bonaire

Caicos

Market segment

Desktop

Release date

March 2013

January 2013

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

None

Core clock speed

1000 MHz

775 MHz

Floating-point performance

1,792 gflops

248.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

2,080 million

370 million

Pipelines / CUDA cores

896

160

Power consumption (TDP)

85 Watt

35 Watt

Texture fill rate

56.00

6.200

Memory type

GDDR5

Maximum RAM amount

1 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

6000 MHz

3200 MHz

Memory bandwidth

96 GB/s

25.6 GB/s

Display Connectors

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

1x DVI, 1x HDMI

HDMI

DirectX

12 (12_0)

11.2 (11_0)

OpenCL

2.0

1.2

OpenGL

4.6

4.4

Shader Model

6.3

5.0

Vulkan

1.2.131

N/A