GeForce GT 620 and HD Graphics 400 - video card comparison

GeForce GT 620

HD Graphics 400

Architecture

Fermi (2010−2014)

Generation 8.0 (2014−2015)

GPU code name

GF108

Braswell GT1

Market segment

Desktop

Desktop

Release date

May 2012

April 2015

Bus support

PCI Express 2.0

-

Interface

PCIe 2.0 x16

PCIe 3.0 x1

Supplementary power connectors

None

-

Boost clock speed

-

640 MHz

Core clock speed

700 MHz

320 MHz

CUDA cores

96

-

Floating-point performance

268.8 gflops

134.4 gflops

Manufacturing process technology

40 nm

14 nm

Number of transistors

585 million

189 million

Pipelines / CUDA cores

96

96

Power consumption (TDP)

49 Watt

6 Watt

Maximum GPU temperature

98 °C

-

Texture fill rate

11.2 billion/sec

7.680

Memory type

DDR3

DDR3L

Maximum RAM amount

1 GB

8 GB

Memory bus width

64 Bit

System Shared

Memory clock speed

1.8 GB/s

System Shared

Memory bandwidth

14.4 GB/s

-

Display Connectors

Dual Link DVI-I, HDMI, VGA

No outputs

Multi monitor support

+

-

HDMI

+

-

HDCP

+

-

Maximum VGA resolution

2048x1536

-

Audio input for HDMI

Internal

-

DirectX

12 (11_0)

12 (11_1)

CUDA

+

-

OpenCL

1.1

2.0

OpenGL

4.2

4.3

Shader Model

5.1

5.1

Vulkan

N/A

1.1.80

3D Blu-Ray

+

-