GeForce 940M and Radeon R6 M340DX - video card comparison

GeForce 940M

Radeon R6 M340DX

Architecture

Maxwell (2014−2018)

GCN (2011−2017)

GPU code name

N16S-GT-S/B

Jet

Market segment

Laptop

Laptop

Release date

March 2015

June 2015

Bus support

PCI Express 3.0

-

Interface

PCIe 3.0 x8

IGP

Boost clock speed

1176 MHz

1030 MHz

Core clock speed

1072 MHz

-

Floating-point performance

903.2 gflops

-

Manufacturing process technology

28 nm

28 nm

Number of transistors

1,870 million

690 million

Pipelines / CUDA cores

384

704

Power consumption (TDP)

75 Watt

-

Texture fill rate

28.22

24.72

Memory type

DDR3

DDR3

Maximum RAM amount

4 GB

System Shared

Memory bus width

64 Bit

System Shared

Memory clock speed

2000 MHz

System Shared

Memory bandwidth

14.4 GB/s

-

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

12 (11_0)

12 (11_1)

CUDA

+

-

OpenCL

1.2

1.2

OpenGL

4.5

4.6

Shader Model

5.1

5.1

Vulkan

1.1.126

1.2.131

GameWorks

+

-

GPU Boost

2.0

-

Optimus

+

-