Radeon RX 480 and Radeon RX 6450M - video card comparison

Radeon RX 480

Radeon RX 6450M

Architecture

Polaris (2016−2019)

RDNA 2 (2020−2022)

GPU code name

Polaris 10 Ellesmere

Navi 24

Market segment

Desktop

Laptop

Release date

June 2016

January 2023

Bus support

n/a

-

Interface

PCIe 3.0 x16

PCIe 4.0 x4

Supplementary power connectors

1x 6-pin

None

Bridgeless CrossFire

1

-

Boost clock speed

1266 MHz

2220 MHz

Compute units

36

-

Core clock speed

1120 MHz

2000 MHz

Floating-point performance

5,834 gflops

-

Manufacturing process technology

14 nm

6 nm

Number of transistors

5,700 million

5,400 million

Pipelines / CUDA cores

2304

768

Power consumption (TDP)

150 Watt

25 Watt (25 - 50 Watt TGP)

Texture fill rate

182.3

118.1

Memory type

GDDR5

GDDR6

Maximum RAM amount

8 GB

4 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

8000 MHz

18000 MHz

Memory bandwidth

224 GB/s

128.0 GB/s

Shared memory

-

-

Display Connectors

1x HDMI, 3x DisplayPort

Portable Device Dependent

Eyefinity

1

-

HDMI

2.0

-

DisplayPort support

1.4HDR

-

DirectX

DirectX® 12

12 Ultimate (12_2)

Mantle

n/a

-

OpenCL

2.0

2.2

OpenGL

4.5

4.6

Shader Model

6.4

6.7

Vulkan

+

1.3

AppAcceleration

n/a

-

CrossFire

1

-

Enduro

n/a

-

FreeSync

+

-

FRTC

1

-

HD3D

n/a

-

LiquidVR

1

-

PowerTune

+

-

TressFX

1

-

TrueAudio

n/a

-

UVD

+

-

VCE

+

-

ZeroCore

+

-