Radeon R9 390 X2 and GK106 - video card comparison

Radeon R9 390 X2

GK106

Architecture

GCN 2.0 (2013−2017)

Kepler (2012−2018)

GPU code name

Grenada

GK106

Market segment

Desktop

Desktop

Release date

September 2015

-

Interface

PCIe 3.0 x16

-

Supplementary power connectors

4x 8-pin

-

Core clock speed

1000 MHz

-

Floating-point performance

2x 5,120 gflops

-

Manufacturing process technology

28 nm

28 nm

Number of transistors

6,200 million

2,540 million

Pipelines / CUDA cores

2560

960

Power consumption (TDP)

580 Watt

-

Texture fill rate

160.0

-

Memory type

GDDR5

-

Maximum RAM amount

8 GB

-

Memory bus width

512 Bit

-

Memory clock speed

5400 MHz

-

Memory bandwidth

345.6 GB/s

-

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

-

HDMI

+

-

DirectX

12 (12_0)

12 (11_0)

CUDA

-

3.0

OpenCL

2.0

3.0

OpenGL

4.6

4.6

Shader Model

6.3

6.5 (5.1)

Vulkan

1.2.131

1.2.175

NVENC

-

1st Gen

PureVideo HD

-

VP5