Radeon HD 7720 OEM and Radeon 620 - video card comparison

Radeon HD 7720 OEM

Radeon 620

Architecture

TeraScale 2 (2009−2015)

GCN 1.0 (2012−2020)

GPU code name

Barts

Polaris 24

Market segment

Desktop

Laptop

Release date

March 2013

August 2019

Interface

PCIe 2.0 x16

PCIe 3.0 x8

Supplementary power connectors

-

None

Boost clock speed

-

1024 MHz

Core clock speed

840 MHz

-

Floating-point performance

1,344 gflops

-

Manufacturing process technology

40 nm

28 nm

Number of transistors

1,700 million

1,550 million

Pipelines / CUDA cores

800

384

Power consumption (TDP)

150 Watt

50 Watt

Texture fill rate

33.60

24.58

Memory type

GDDR5

DDR3, GDDR5

Maximum RAM amount

1 GB

4 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

4200 MHz

2250 MHz

Memory bandwidth

134.4 GB/s

14.4 GB/s

Shared memory

-

-

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

No outputs

HDMI

+

-

DirectX

11.2 (11_0)

12 (12_0)

OpenCL

1.2

2.0

OpenGL

4.4

4.6

Shader Model

5.0

6.3

Vulkan

N/A

1.2.131