GeForce GTX 645 OEM and GeForce GTX 470 X2 - video card comparison

GeForce GTX 645 OEM

GeForce GTX 470 X2

Architecture

Kepler (2012−2018)

Fermi (2010−2014)

GPU code name

GK106

GF100

Market segment

Desktop

Release date

April 2013

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

None

2x 8-pin

Core clock speed

824 MHz

608 MHz

Floating-point performance

949.2 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

2,540 million

3,100 million

Pipelines / CUDA cores

576

352

Power consumption (TDP)

65 Watt

215 Watt

Texture fill rate

39.55

26.75

Memory type

GDDR5

Maximum RAM amount

1 GB

Memory bus width

128 Bit

256 Bit

Memory clock speed

4000 MHz

3.3 GB/s

Memory bandwidth

64 GB/s

107.1 GB/s

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

3x DVI

HDMI

DirectX

12 (11_0)

CUDA

3.0

2.0

OpenCL

1.2

1.1

OpenGL

4.6

Shader Model

5.1

Vulkan

1.1.126

N/A