GeForce GT 755M SLI and GeForce 940M - video card comparison

GeForce GT 755M SLI

GeForce 940M

Architecture

Kepler (2012−2018)

Maxwell (2014−2018)

GPU code name

N14P-?

N16S-GT-S/B

Market segment

Laptop

Laptop

Release date

November 2013

March 2015

Bus support

-

PCI Express 3.0

Interface

-

PCIe 3.0 x8

Boost clock speed

-

1176 MHz

Core clock speed

980 MHz

1072 MHz

Floating-point performance

-

903.2 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

2x 1300 Million

1,870 million

Pipelines / CUDA cores

768

384

Power consumption (TDP)

2x ~50 Watt

75 Watt

Texture fill rate

-

28.22

Memory type

GDDR5

DDR3

Maximum RAM amount

2x 2 GB

4 GB

Memory bus width

2x 128 Bit

64 Bit

Memory clock speed

5400 MHz

2000 MHz

Memory bandwidth

-

14.4 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

DirectX

11

12 (11_0)

CUDA

+

+

OpenCL

-

1.2

OpenGL

-

4.5

Shader Model

-

5.1

Vulkan

-

1.1.126

GameWorks

-

+

GPU Boost

-

2.0

Optimus

-

+