GeForce GT 640 OEM and Quadro P620 - video card comparison

GeForce GT 640 OEM

Quadro P620

Architecture

Kepler (2012−2018)

Pascal (2016−2021)

GPU code name

GK107

GP107

Market segment

Desktop

Workstation

Release date

April 2012

May 2019

Interface

PCIe 3.0 x16

PCIe 3.0 x16

Supplementary power connectors

None

None

Boost clock speed

-

1442 MHz

Core clock speed

797 MHz

1177 MHz

Floating-point performance

612.1 gflops

1,490 gflops

Manufacturing process technology

28 nm

14 nm

Number of transistors

1,270 million

3,300 million

Pipelines / CUDA cores

384

512

Power consumption (TDP)

50 Watt

25 Watt

Texture fill rate

25.50

43.33

Memory type

DDR3

GDDR5

Maximum RAM amount

2 GB

2 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

1782 MHz

6000 MHz

Memory bandwidth

28.51 GB/s

80.13 GB/s

Shared memory

-

-

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

4x mini-DisplayPort

HDMI

+

-

DirectX

12 (11_0)

12 (12_1)

CUDA

3.0

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