Radeon HD 7950 and Steam Deck GPU - video card comparison

Radeon HD 7950

Steam Deck GPU

Architecture

GCN 1.0 (2012−2020)

RDNA 2.0 (2020−2022)

GPU code name

Tahiti

Van Gogh

Market segment

Desktop

Desktop

Release date

January 2012

February 2022

Bus support

PCIe 3.0 x16

-

Interface

PCIe 3.0 x16

-

Supplementary power connectors

2x 6-pin

None

Boost clock speed

1250 MHz

1600 MHz

Compute units

28

-

Floating-point performance

2,867 gflops

-

Manufacturing process technology

28 nm

7 nm

Number of transistors

4,313 million

2,400 million

Pipelines / CUDA cores

1792

512

Power consumption (TDP)

200 Watt

15 Watt

Texture fill rate

89.60

51.20

Memory type

GDDR5

LPDDR5

Maximum RAM amount

3 GB

16 GB

Memory bus width

384 Bit

128 Bit

Memory clock speed

1250 MHz

5.5 GB/s

Memory bandwidth

240 GB/s

88 GB/s

Display Connectors

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

1x USB Type-C

Eyefinity

1

-

Number of Eyefinity displays

6

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

12 (12_1)

Mantle

-

-

OpenCL

1.2

2.0

OpenGL

4.6

4.6

Shader Model

5.1

6.5

Vulkan

-

1.2

AppAcceleration

+

-

CrossFire

1

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

+

-

TrueAudio

-

-

ZeroCore

+

-