Tesla K20c and Radeon HD 5850 - video card comparison

Tesla K20c

Radeon HD 5850

Architecture

Kepler (2012−2018)

Terascale 2 (2009−2015)

GPU code name

GK110

Cypress

Market segment

Workstation

Desktop

Release date

November 2012

September 2009

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

2x 6-pin

Core clock speed

706 MHz

725 MHz

Floating-point performance

3,524 gflops

2,088.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

7,080 million

2,154 million

Pipelines / CUDA cores

2496

1440

Power consumption (TDP)

225 Watt

151 Watt

Texture fill rate

146.8

52.20

Memory type

GDDR5

GDDR5

Maximum RAM amount

5 GB

1 GB

Memory bus width

320 Bit

256 Bit

Memory clock speed

5200 MHz

2000 MHz

Memory bandwidth

208.0 GB/s

128.0 GB/s

Display Connectors

No outputs

2x DVI, 1x HDMI, 1x DisplayPort

HDMI

-

+

DirectX

12 (11_0)

11.2 (11_0)

CUDA

3.5

-

OpenCL

1.2

1.2

OpenGL

4.6

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

N/A