GeForce GT 645M and GeForce2 MX 400 - video card comparison

GeForce GT 645M

GeForce2 MX 400

Architecture

Kepler (2012−2018)

Celsius (1999−2005)

GPU code name

N13P-GS

NV11 B2

Market segment

Laptop

Desktop

Release date

March 2012

March 2001

Bus support

PCI Express 2.0, PCI Express 3.0

-

Interface

PCIe 3.0 x16

AGP 4x

Supplementary power connectors

-

None

Core clock speed

Up to 710 MHz

200 MHz

CUDA cores

384

-

Floating-point performance

544.5 gflops

-

Manufacturing process technology

28 nm

180 nm

Number of transistors

1,270 million

20 million

Pipelines / CUDA cores

384

-

Power consumption (TDP)

32 Watt

-

Texture fill rate

22.7 billion/sec

0.8

Memory type

DDR3\GDDR5

SDR

Maximum RAM amount

2 GB

32 MB

Memory bus width

128bit

128 Bit

Memory clock speed

1800 MHz

166 MHz

Memory bandwidth

Up to 64.0 GB/s

2.656 GB/s

Shared memory

-

-

Display Connectors

No outputs

1x DVI, 1x VGA

HDMI

+

-

HDCP

+

-

Maximum VGA resolution

Up to 2048x1536

-

DirectX

12 API

7.0

CUDA

+

-

OpenCL

1.1

N/A

OpenGL

4.5

1.2

Shader Model

5.1

-

Vulkan

1.1.126

N/A

3D Blu-Ray

+

-

Optimus

+

-