Radeon HD 7770 and Radeon RX 6450M - video card comparison

Radeon HD 7770

Radeon RX 6450M

Architecture

GCN (2011−2017)

RDNA 2 (2020−2022)

GPU code name

Cape Verde

Navi 24

Market segment

Desktop

Laptop

Release date

February 2012

January 2023

Interface

PCIe 3.0 x16

PCIe 4.0 x4

Supplementary power connectors

1x 6-pin

None

Boost clock speed

-

2220 MHz

Core clock speed

1000 MHz

2000 MHz

Manufacturing process technology

28 nm

6 nm

Number of transistors

1,500 million

5,400 million

Pipelines / CUDA cores

640

768

Power consumption (TDP)

80 Watt

25 Watt (25 - 50 Watt TGP)

Texture fill rate

40.00

118.1

Memory type

GDDR5

GDDR6

Maximum RAM amount

2 GB

4 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

4500 MHz

18000 MHz

Memory bandwidth

72 GB/s

128.0 GB/s

Shared memory

-

-

Display Connectors

1x DVI, 1x HDMI, 2x mini-DisplayPort

Portable Device Dependent

Eyefinity

+

-

HDMI

+

-

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenCL

1.2

2.2

OpenGL

4.6

4.6

Shader Model

5.1

6.7

Vulkan

1.2.131

1.3