Radeon R9 M390 and Radeon RX 6800M - video card comparison

Radeon R9 M390

Radeon RX 6800M

Architecture

GCN (2011−2017)

RDNA 2 (2020−2022)

GPU code name

Pitcairn

Navi 22

Market segment

Laptop

Laptop

Release date

June 2015

June 2021

Bus support

PCIe 3.0

-

Interface

-

PCIe 4.0 x16

Supplementary power connectors

-

None

Boost clock speed

-

2300 MHz

Core clock speed

-

2116 MHz

Manufacturing process technology

28 nm

7 nm

Number of transistors

5000 Million

17,200 million

Pipelines / CUDA cores

1024

2560

Power consumption (TDP)

-

145 Watt

Texture fill rate

-

413.0

Memory type

GDDR5

GDDR6

Maximum RAM amount

2 GB

12 GB

Memory bus width

256 Bit

192 Bit

Memory clock speed

-

16000 MHz

Memory bandwidth

-

384.0 GB/s

Shared memory

-

-

Display Connectors

-

No outputs

Eyefinity

1

-

DirectX

DirectX® 12

12 Ultimate (12_2)

Mantle

+

-

OpenCL

Not Listed

2.1

OpenGL

4.4

4.6

Shader Model

-

6.5

Vulkan

-

1.2

AppAcceleration

-

-

DualGraphics

1

-

Enduro

-

-

FreeSync

1

-

HD3D

+

-

PowerTune

+

-

Switchable graphics

1

-

TrueAudio

-

-

ZeroCore

+

-