GeForce 940M and Radeon HD 7490M - video card comparison

GeForce 940M

Radeon HD 7490M

Architecture

Maxwell (2014−2018)

Terascale 2 (2009−2015)

GPU code name

N16S-GT-S/B

Seymour XTX

Market segment

Laptop

Laptop

Release date

March 2015

December 2011

Bus support

PCI Express 3.0

-

Interface

PCIe 3.0 x8

PCIe 2.0 x16

Boost clock speed

1176 MHz

-

Core clock speed

1072 MHz

800 MHz

Floating-point performance

903.2 gflops

256.0 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

1,870 million

370 million

Pipelines / CUDA cores

384

160

Power consumption (TDP)

75 Watt

9 Watt

Texture fill rate

28.22

6.400

Memory type

DDR3

GDDR5

Maximum RAM amount

4 GB

512 MB

Memory bus width

64 Bit

64 Bit

Memory clock speed

2000 MHz

3800 MHz

Memory bandwidth

14.4 GB/s

30.4 GB/s

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

12 (11_0)

11.2 (11_0)

CUDA

+

-

OpenCL

1.2

1.2

OpenGL

4.5

4.4

Shader Model

5.1

5.0

Vulkan

1.1.126

N/A

GameWorks

+

-

GPU Boost

2.0

-

Optimus

+

-