GeForce GTX 780M Mac Edition and Radeon HD 6770M Mac Edition - video card comparison

GeForce GTX 780M Mac Edition

Radeon HD 6770M Mac Edition

Architecture

Kepler (2012−2018)

TeraScale 2 (2009−2015)

GPU code name

GK104

Whistler

Market segment

Desktop

Release date

November 2013

January 2011

Interface

MXM-B (3.0)

MXM-A (3.0)

Boost clock speed

797 MHz

Core clock speed

771 MHz

725 MHz

Floating-point performance

2,448 gflops

696.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

3,540 million

716 million

Pipelines / CUDA cores

1536

480

Power consumption (TDP)

122 Watt

35 Watt

Texture fill rate

102.0

17.40

Memory type

GDDR5

Maximum RAM amount

4 GB

512 MB

Memory bus width

256 Bit

128 Bit

Memory clock speed

5000 MHz

3600 MHz

Memory bandwidth

160.0 GB/s

57.6 GB/s

Display Connectors

No outputs

DirectX

12 (11_0)

11.2 (11_0)

CUDA

3.0

OpenCL

1.2

OpenGL

4.6

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

N/A