GeForce GTX 775M Mac Edition and Radeon HD 6870 1600SP Edition - video card comparison

GeForce GTX 775M Mac Edition

Radeon HD 6870 1600SP Edition

Architecture

Kepler (2012−2018)

TeraScale 2 (2009−2015)

GPU code name

GK104

Cypress

Market segment

Desktop

Release date

November 2013

January 2013

Interface

MXM-B (3.0)

PCIe 2.0 x16

Supplementary power connectors

2x 6-pin

Core clock speed

797 MHz

850 MHz

Floating-point performance

2,142 gflops

2,720 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

3,540 million

2,154 million

Pipelines / CUDA cores

1344

1600

Power consumption (TDP)

100 Watt

175 Watt

Texture fill rate

89.26

68.00

Memory type

GDDR5

Maximum RAM amount

2 GB

1 GB

Memory bus width

256 Bit

Memory clock speed

5000 MHz

4200 MHz

Memory bandwidth

160.0 GB/s

134.4 GB/s

Display Connectors

No outputs

2x DVI, 1x HDMI, 2x mini-DisplayPort

HDMI

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