GeForce 940M and GeForce GT 555M 3 GB - video card comparison

GeForce 940M

GeForce GT 555M 3 GB

Architecture

Maxwell (2014−2018)

Fermi (2010−2014)

GPU code name

N16S-GT-S/B

GF106

Market segment

Laptop

Desktop

Release date

March 2015

March 2011

Bus support

PCI Express 3.0

Interface

PCIe 3.0 x8

PCIe 2.0 x16

Supplementary power connectors

None

Boost clock speed

1176 MHz

Core clock speed

1072 MHz

590 MHz

Floating-point performance

903.2 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,870 million

1,170 million

Pipelines / CUDA cores

384

144

Power consumption (TDP)

75 Watt

35 Watt

Texture fill rate

28.22

14.16

Memory type

DDR3

Maximum RAM amount

4 GB

3 GB

Memory bus width

64 Bit

192 Bit

Memory clock speed

2000 MHz

1800 MBps

Memory bandwidth

14.4 GB/s

43.2 GB/s

Shared memory

Display Connectors

No outputs

Portable Device Dependent

DirectX

12 (11_0)

CUDA

2.1

OpenCL

1.2

1.1

OpenGL

4.5

4.6

Shader Model

5.1

Vulkan

1.1.126

N/A

GameWorks

GPU Boost

2.0

Optimus