Ellesmere and GeForce GT 640 OEM - video card comparison

Ellesmere

GeForce GT 640 OEM

Architecture

GCN 4.0 (2016−2020)

Kepler (2012−2018)

GPU code name

Ellesmere

GK107

Market segment

Desktop

Release date

April 2012

Interface

PCIe 3.0 x16

Supplementary power connectors

None

Core clock speed

797 MHz

Floating-point performance

612.1 gflops

Manufacturing process technology

14 nm

28 nm

Number of transistors

5,700 million

1,270 million

Pipelines / CUDA cores

2304

384

Power consumption (TDP)

50 Watt

Texture fill rate

25.50

Memory type

DDR3

Maximum RAM amount

2 GB

Memory bus width

128 Bit

Memory clock speed

1782 MHz

Memory bandwidth

28.51 GB/s

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

HDMI

DirectX

12 (12_0)

12 (11_0)

CUDA

3.0

OpenCL

2.1

1.2

OpenGL

4.6

Shader Model

6.7

5.1

Vulkan

1.3

1.1.126