GeForce GTX 645 OEM and Quadro T400 Mobile - video card comparison

GeForce GTX 645 OEM

Quadro T400 Mobile

Architecture

Kepler (2012−2018)

Turing (2018−2021)

GPU code name

GK106

TU117

Market segment

Desktop

Mobile workstation

Release date

April 2013

Interface

PCIe 3.0 x16

Supplementary power connectors

None

Boost clock speed

1425 MHz

Core clock speed

824 MHz

Floating-point performance

949.2 gflops

Manufacturing process technology

28 nm

12 nm

Number of transistors

2,540 million

4,700 million

Pipelines / CUDA cores

576

896

Power consumption (TDP)

65 Watt

18 Watt

Texture fill rate

39.55

79.80

Memory type

GDDR5

GDDR6

Maximum RAM amount

1 GB

2 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

4000 MHz

10 GB/s

Memory bandwidth

64 GB/s

80 GB/s

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

No outputs

HDMI

DirectX

12 (11_0)

12 (12_1)

CUDA

3.0

7.5

OpenCL

1.2

3.0

OpenGL

4.6

Shader Model

5.1

6.6

Vulkan

1.1.126

1.2