Tesla K20c and Quadro P620 - video card comparison

Tesla K20c

Quadro P620

Architecture

Kepler (2012−2018)

Pascal (2016−2021)

GPU code name

GK110

GP107

Market segment

Workstation

Workstation

Release date

November 2012

May 2019

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Supplementary power connectors

1x 6-pin + 1x 8-pin

None

Boost clock speed

-

1442 MHz

Core clock speed

706 MHz

1177 MHz

Floating-point performance

3,524 gflops

1,490 gflops

Manufacturing process technology

28 nm

14 nm

Number of transistors

7,080 million

3,300 million

Pipelines / CUDA cores

2496

512

Power consumption (TDP)

225 Watt

25 Watt

Texture fill rate

146.8

43.33

Memory type

GDDR5

GDDR5

Maximum RAM amount

5 GB

2 GB

Memory bus width

320 Bit

128 Bit

Memory clock speed

5200 MHz

6000 MHz

Memory bandwidth

208.0 GB/s

80.13 GB/s

Shared memory

-

-

Display Connectors

No outputs

4x mini-DisplayPort

DirectX

12 (11_0)

12 (12_1)

CUDA

3.5

6.1

OpenCL

1.2

1.2

OpenGL

4.6

4.6

Shader Model

5.1

6.4

Vulkan

1.1.126

1.2.131