Ellesmere and GeForce GTX 660M Mac Edition - video card comparison

Ellesmere

GeForce GTX 660M Mac Edition

Architecture

GCN 4.0 (2016−2020)

Kepler (2012−2018)

GPU code name

Ellesmere

GK107

Market segment

Desktop

Release date

April 2013

Interface

MXM-B (3.0)

Supplementary power connectors

None

Core clock speed

950 MHz

Floating-point performance

729.6 gflops

Manufacturing process technology

14 nm

28 nm

Number of transistors

5,700 million

1,270 million

Pipelines / CUDA cores

2304

384

Power consumption (TDP)

50 Watt

Texture fill rate

30.40

Memory type

GDDR5

Maximum RAM amount

512 MB

Memory bus width

128 Bit

Memory clock speed

5000 MHz

Memory bandwidth

80 GB/s

Display Connectors

No outputs

DirectX

12 (12_0)

12 (11_0)

CUDA

3.0

OpenCL

2.1

1.2

OpenGL

4.6

Shader Model

6.7

5.1

Vulkan

1.3

1.1.126