GeForce GT 645M and GeForce GTS 450 Rev. 2 - video card comparison

GeForce GT 645M

GeForce GTS 450 Rev. 2

Architecture

Kepler (2012−2018)

Fermi 2.0 (2010−2014)

GPU code name

N13P-GS

GF116

Market segment

Laptop

Desktop

Release date

March 2012

March 2011

Bus support

PCI Express 2.0, PCI Express 3.0

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

Core clock speed

Up to 710 MHz

783 MHz

CUDA cores

384

Floating-point performance

544.5 gflops

601.3 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,270 million

1,170 million

Pipelines / CUDA cores

384

192

Power consumption (TDP)

32 Watt

106 Watt

Texture fill rate

22.7 billion/sec

25.06

Memory type

DDR3\GDDR5

GDDR5

Maximum RAM amount

2 GB

1 GB

Memory bus width

128bit

128 Bit

Memory clock speed

1800 MHz

3608 MHz

Memory bandwidth

Up to 64.0 GB/s

57.73 GB/s

Shared memory

Display Connectors

No outputs

2x DVI, 1x mini-HDMI

HDMI

HDCP

Maximum VGA resolution

Up to 2048x1536

DirectX

12 API

12 (11_0)

CUDA

2.1

OpenCL

1.1

OpenGL

4.5

4.6

Shader Model

5.1

Vulkan

1.1.126

N/A

3D Blu-Ray

Optimus