GeForce 845M and GeForce GT 555M 3 GB - video card comparison

GeForce 845M

GeForce GT 555M 3 GB

Architecture

Maxwell (2014−2018)

Fermi (2010−2014)

GPU code name

GM108

GF106

Market segment

Laptop

Desktop

Release date

March 2014

March 2011

Interface

PCIe 3.0 x8

PCIe 2.0 x16

Supplementary power connectors

None

Boost clock speed

1150 MHz

Core clock speed

1071 MHz

590 MHz

Floating-point performance

883.7 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)

45 Watt

35 Watt

Texture fill rate

37.63

14.16

Memory type

DDR3, GDDR5

DDR3

Maximum RAM amount

2 GB

3 GB

Memory bus width

64/128 Bit

192 Bit

Memory clock speed

2000 - 5000 MHz

1800 MBps

Memory bandwidth

40.1 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

4.6

Shader Model

5.1

Vulkan

1.1.126

N/A

Optimus