Tesla K20c and Quadro K620 - video card comparison

Tesla K20c

Quadro K620

Architecture

Kepler (2012−2018)

Maxwell (2014−2018)

GPU code name

GK110

GM107

Market segment

Workstation

Workstation

Release date

November 2012

July 2014

Interface

PCIe 2.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Boost clock speed

-

1124 MHz

Core clock speed

706 MHz

1058 MHz

Floating-point performance

3,524 gflops

863.2 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

7,080 million

1,870 million

Pipelines / CUDA cores

2496

384

Power consumption (TDP)

225 Watt

41 Watt

Texture fill rate

146.8

26.98

Memory type

GDDR5

128 Bit

Maximum RAM amount

5 GB

2 GB

Memory bus width

320 Bit

128 Bit

Memory clock speed

5200 MHz

1800 MHz

Memory bandwidth

208.0 GB/s

Up to 29 GB/s

Display Connectors

No outputs

DVI-I DP

Number of simultaneous displays

-

4

DirectX

12 (11_0)

12

CUDA

3.5

5.0

OpenCL

1.2

1.2

OpenGL

4.6

4.5

Shader Model

5.1

5

Vulkan

1.1.126

+

3D Vision Pro

-

+

Mosaic

-

+

nView Desktop Management

-

+