Radeon R6 M340DX and GeForce 820M - video card comparison

Radeon R6 M340DX

GeForce 820M

Architecture

GCN (2011−2017)

Fermi (2010−2014)

GPU code name

Jet

N15V-GM

Market segment

Laptop

Laptop

Release date

June 2015

January 2014

Bus support

-

PCI Express 2.0

Interface

IGP

PCIe 2.0 x16

Boost clock speed

1030 MHz

-

Core clock speed

-

775 MHz

Floating-point performance

-

240.0 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

690 million

585 million

Pipelines / CUDA cores

704

96

Power consumption (TDP)

-

15 Watt

Texture fill rate

24.72

10.00

Memory type

DDR3

DDR3

Maximum RAM amount

System Shared

2 GB

Memory bus width

System Shared

64 Bit

Memory clock speed

System Shared

1800 MHz

Memory bandwidth

-

14.4 GB/s

Shared memory

-

-

Display Connectors

No outputs

No outputs

DirectX

12 (11_1)

12 (11_0)

CUDA

-

+

OpenCL

1.2

1.1

OpenGL

4.6

4.5

Shader Model

5.1

5.1

Vulkan

1.2.131

N/A

GameWorks

-

+

GPU Boost

-

2.0

Optimus

-

+