GeForce 840M and Radeon RX 540 OEM - video card comparison

GeForce 840M

Radeon RX 540 OEM

Architecture

Maxwell (2014−2018)

GCN 1.0 (2012−2020)

GPU code name

N15S-GT

Cape Verde

Market segment

Laptop

Desktop

Release date

March 2014

April 2017

Bus support

PCI Express 2.0, PCI Express 3.0

-

Interface

PCIe 3.0 x8

PCIe 3.0 x16

Supplementary power connectors

-

1x 6-pin

Boost clock speed

1124 MHz

-

Core clock speed

1029 MHz

1219 MHz

Floating-point performance

863.2 gflops

1,248 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

-

1,500 million

Pipelines / CUDA cores

384

512

Power consumption (TDP)

33 Watt

65 Watt

Texture fill rate

17.98

39.01

Memory type

DDR3

GDDR5

Maximum RAM amount

4 GB

4 GB

Memory bus width

64 Bit

128 Bit

Memory clock speed

2000 MHz

6000 MHz

Memory bandwidth

16.02 GB/s

96 GB/s

Shared memory

-

-

Display Connectors

No outputs

-

DirectX

12 (11_0)

12.0

CUDA

+

-

OpenCL

1.2

1.2

OpenGL

4.5

4.5

Shader Model

5.1

5.0

Vulkan

1.1.126

-

GameWorks

+

-

GPU Boost

2.0

-

Optimus

+

-