Radeon HD 7990 and Radeon RX 570 X2 - video card comparison

Radeon HD 7990

Radeon RX 570 X2

Architecture

GCN 1.0 (2012−2020)

GCN 4.0 (2016−2020)

GPU code name

Malta

Polaris 20

Market segment

Desktop

Release date

April 2013

Interface

PCIe 3.0 x16

Supplementary power connectors

2x 8-pin

Boost clock speed

1000 MHz

1206 MHz

Core clock speed

950 MHz

Floating-point performance

2x 4,096 gflops

Manufacturing process technology

28 nm

14 nm

Number of transistors

4,313 million

5,700 million

Pipelines / CUDA cores

2048

Power consumption (TDP)

375 Watt

180 Watt

Texture fill rate

128.0

154.4

Memory type

GDDR5

Maximum RAM amount

3 GB

8 GB

Memory bus width

384 Bit

256 Bit

Memory clock speed

6000 MHz

8.4 GB/s

Memory bandwidth

288.0 GB/s

268.8 GB/s

Display Connectors

1x DVI, 4x mini-DisplayPort

1x HDMI 2.0b

HDMI

DirectX

12 (11_1)

12 (12_0)

OpenCL

1.2

2.1

OpenGL

4.6

Shader Model

5.1

6.7

Vulkan

1.2.131

1.3