Radeon R9 390 X2 and C78 - video card comparison

Radeon R9 390 X2

C78

Architecture

GCN 2.0 (2013−2017)

Tesla (2006−2010)

GPU code name

Grenada

C78

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

80 nm

Number of transistors

6,200 million

210 million

Pipelines / CUDA cores

2560

16

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)

11.1 (10_0)

OpenCL

2.0

N/A

OpenGL

4.6

3.3

Shader Model

6.3

4.0

Vulkan

1.2.131

N/A

PureVideo HD

-

VP3