GeForce GTX 680M and Cayman - video card comparison

GeForce GTX 680M

Cayman

Architecture

Kepler (2012−2018)

TeraScale 3 (2010−2013)

GPU code name

N13E-GTX

Cayman

Market segment

Laptop

Desktop

Release date

June 2012

-

Bus support

PCI Express 3.0

-

Interface

MXM-B (3.0)

-

Supplementary power connectors

None

-

SLI options

+

-

Boost clock speed

758 MHz

-

Core clock speed

720 MHz

-

CUDA cores

1344

-

Floating-point performance

2,038 gflops

-

Manufacturing process technology

28 nm

40 nm

Number of transistors

3,540 million

2,640 million

Pipelines / CUDA cores

1344

1536

Power consumption (TDP)

100 Watt

-

Texture fill rate

80.6 billion/sec

-

Memory type

GDDR5

-

Maximum RAM amount

4 GB

-

Memory bus width

256 Bit

-

Memory clock speed

1800 MHz

-

Memory bandwidth

115.2 GB/s

-

Shared memory

-

-

Display Connectors

No outputs

-

DirectX

12 API

11.2 (11_0)

CUDA

+

-

OpenCL

1.1

1.2

OpenGL

4.5

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

N/A

Optimus

+

-