Radeon R9 M390 and Arc A770 - video card comparison

Radeon R9 M390

Arc A770

Architecture

GCN (2011−2017)

Alchemist

GPU code name

Pitcairn

DG2-512

Market segment

Laptop

Desktop

Release date

June 2015

October 2022

Bus support

PCIe 3.0

-

Interface

-

PCIe 4.0 x16

Supplementary power connectors

-

1x 6-pin + 1x 8-pin

Boost clock speed

-

2400 MHz

Core clock speed

-

2100 MHz

Manufacturing process technology

28 nm

6 nm

Number of transistors

5000 Million

21,700 million

Pipelines / CUDA cores

1024

4096

Power consumption (TDP)

-

225 Watt

Texture fill rate

-

614.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

2 GB

16 GB

Memory bus width

256 Bit

256 Bit

Memory clock speed

-

16000 MHz

Memory bandwidth

-

512.0 GB/s

Shared memory

-

-

Display Connectors

-

1x HDMI 2.1, 3x DisplayPort 2.0

Eyefinity

1

-

HDMI

-

+

DirectX

DirectX® 12

12 Ultimate (12_2)

Mantle

+

-

OpenCL

Not Listed

3.0

OpenGL

4.4

4.6

Shader Model

-

6.6

Vulkan

-

1.3

AppAcceleration

-

-

DualGraphics

1

-

Enduro

-

-

FreeSync

1

-

HD3D

+

-

PowerTune

+

-

Switchable graphics

1

-

TrueAudio

-

-

ZeroCore

+

-