GeForce 940M and Radeon HD 6850M - video card comparison

GeForce 940M

Radeon HD 6850M

Architecture

Maxwell (2014−2018)

Terascale 2 (2009−2015)

GPU code name

N16S-GT-S/B

Granville Pro/LP

Market segment

Laptop

Laptop

Release date

March 2015

January 2011

Bus support

PCI Express 3.0

-

Interface

PCIe 3.0 x8

PCIe 2.0 x16

Boost clock speed

1176 MHz

-

Core clock speed

1072 MHz

575 / 675 MHz

Floating-point performance

903.2 gflops

1,080.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,870 million

1,040 million

Pipelines / CUDA cores

384

800

Power consumption (TDP)

75 Watt

50 Watt

Texture fill rate

28.22

27.00

Memory type

DDR3

DDR3, GDDR5

Maximum RAM amount

4 GB

1 GB

Memory bus width

64 Bit

128 Bit

Memory clock speed

2000 MHz

800 MHz

Memory bandwidth

14.4 GB/s

25.6 GB/s

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

12 (11_0)

11.2 (11_0)

CUDA

+

-

OpenCL

1.2

1.2

OpenGL

4.5

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

N/A

GameWorks

+

-

GPU Boost

2.0

-

Optimus

+

-