GeForce GTX 660M Mac Edition and GeForce MX450 30.5W 8Gbps - video card comparison

GeForce GTX 660M Mac Edition

GeForce MX450 30.5W 8Gbps

Architecture

Kepler (2012−2018)

Turing (2018−2021)

GPU code name

GK107

TU117

Market segment

Desktop

Release date

April 2013

August 2020

Interface

MXM-B (3.0)

PCIe 4.0 x4

Supplementary power connectors

None

Boost clock speed

1275 MHz

Core clock speed

950 MHz

Floating-point performance

729.6 gflops

Manufacturing process technology

28 nm

12 nm

Number of transistors

1,270 million

4,700 million

Pipelines / CUDA cores

384

896

Power consumption (TDP)

50 Watt

31 Watt

Texture fill rate

30.40

71.40

Memory type

GDDR5

Maximum RAM amount

512 MB

2 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

5000 MHz

8 GB/s

Memory bandwidth

80 GB/s

64 GB/s

Display Connectors

No outputs

DirectX

12 (11_0)

12 (12_1)

CUDA

3.0

7.5

OpenCL

1.2

OpenGL

4.6

Shader Model

5.1

6.5

Vulkan

1.1.126

1.2