GeForce GT 640 and GMA 3100 - video card comparison

GeForce GT 640

GMA 3100

Architecture

Kepler (2012−2018)

Generation 4.0 (2006−2007)

GPU code name

GK107

Bearlake

Market segment

Desktop

Desktop

Release date

June 2012

May 2007

Interface

PCIe 3.0 x16

PCIe 1.0 x16

Supplementary power connectors

None

-

Core clock speed

902 MHz

400 MHz

Floating-point performance

692.7 gflops

-

Manufacturing process technology

28 nm

90 nm

Number of transistors

1,270 million

-

Pipelines / CUDA cores

384

-

Power consumption (TDP)

65 Watt

13 Watt

Texture fill rate

28.86

1.600

Memory type

DDR3

System Shared

Maximum RAM amount

2 GB

System Shared

Memory bus width

128 Bit

System Shared

Memory clock speed

1782 MHz

System Shared

Memory bandwidth

28.51 GB/s

-

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

No outputs

HDMI

+

-

DirectX

12 (11_0)

9.0c

CUDA

3.0

-

OpenCL

1.2

N/A

OpenGL

4.6

2.0

Shader Model

5.1

3.0

Vulkan

1.1.126

N/A