Maxwell GPU Surface Book and Radeon R5 M420 - video card comparison

Maxwell GPU Surface Book

Radeon R5 M420

Architecture

Maxwell (2014−2018)

GCN (2011−2017)

GPU code name

Surface Book

Jet

Market segment

Laptop

Laptop

Release date

October 2015

June 2016

Interface

-

PCIe 3.0 x8

Boost clock speed

993 MHz

850 MHz

Core clock speed

954 MHz

780 MHz

Floating-point performance

-

547.2 gflops

Manufacturing process technology

28 nm

28 nm

Number of transistors

-

690 million

Pipelines / CUDA cores

384

320

Texture fill rate

-

17.00

Memory type

GDDR5

DDR3

Maximum RAM amount

1 GB

4 GB

Memory bus width

64 Bit

64 Bit

Memory clock speed

5012 MHz

2000 MHz

Memory bandwidth

-

16 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

DirectX

12 (FL 11_0)

12 (11_1)

CUDA

+

-

OpenCL

-

1.2

OpenGL

-

4.6

Shader Model

-

5.1

Vulkan

-

1.2.131

Optimus

+

-