GeForce GT 755M SLI and GeForce 820M - video card comparison

GeForce GT 755M SLI

GeForce 820M

Architecture

Kepler (2012−2018)

Fermi (2010−2014)

GPU code name

N14P-?

N15V-GM

Market segment

Laptop

Laptop

Release date

November 2013

January 2014

Bus support

-

PCI Express 2.0

Interface

-

PCIe 2.0 x16

Core clock speed

980 MHz

775 MHz

Floating-point performance

-

240.0 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

2x 1300 Million

585 million

Pipelines / CUDA cores

768

96

Power consumption (TDP)

2x ~50 Watt

15 Watt

Texture fill rate

-

10.00

Memory type

GDDR5

DDR3

Maximum RAM amount

2x 2 GB

2 GB

Memory bus width

2x 128 Bit

64 Bit

Memory clock speed

5400 MHz

1800 MHz

Memory bandwidth

-

14.4 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

DirectX

11

12 (11_0)

CUDA

+

+

OpenCL

-

1.1

OpenGL

-

4.5

Shader Model

-

5.1

Vulkan

-

N/A

GameWorks

-

+

GPU Boost

-

2.0

Optimus

-

+