GeForce GTX 860M and Radeon HD 6750M Mac Edition - video card comparison

GeForce GTX 860M

Radeon HD 6750M Mac Edition

Architecture

Maxwell (2014−2018)

TeraScale 2 (2009−2015)

GPU code name

N15P-GX

Whistler

Market segment

Laptop

Desktop

Release date

March 2014

April 2011

Bus support

PCI Express 2.0, PCI Express 3.0

-

Interface

MXM-B (3.0)

MXM-A (3.0)

Supplementary power connectors

None

-

SLI options

+

-

Boost clock speed

915 MHz

-

Core clock speed

797 MHz

598 MHz

CUDA cores

1152 or 640

-

Floating-point performance

1,389 gflops

574.1 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,870 million

716 million

Pipelines / CUDA cores

640

480

Power consumption (TDP)

75 Watt

35 Watt

Texture fill rate

43.40

14.35

Memory type

GDDR5

GDDR5

Maximum RAM amount

4 GB

512 MB

Memory bus width

128 Bit

128 Bit

Memory clock speed

Up to 2500 MHz

3176 MHz

Memory bandwidth

80.0 GB/s

50.82 GB/s

Shared memory

-

-

Standard memory configuration

GDDR5

-

Display Connectors

No outputs

No outputs

eDP 1.2 signal support

Up to 3840x2160

-

LVDS signal support

Up to 1920x1200

-

VGA аnalog display support

Up to 2048x1536

-

DisplayPort Multimode (DP++) support

Up to 3840x2160

-

HDCP content protection

+

-

HDMI

+

-

7.1 channel HD audio on HDMI

+

-

DirectX

12 (11_0)

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

Ansel

+

-

H.264, VC1, MPEG2 1080p video decoder

+

-

Optimus

+

-

TrueHD and DTS-HD audio bitstreaming

+

-