Radeon HD 6850 and GeForce RTX 3080 Mobile - video card comparison

Radeon HD 6850

GeForce RTX 3080 Mobile

Architecture

TeraScale 2 (2009−2015)

Ampere (2020−2022)

GPU code name

Barts

GN20-E7 GA104

Market segment

Desktop

Laptop

Release date

October 2010

January 2021

Bus support

AGP

-

Interface

PCIe 2.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 6-pin

-

Boost clock speed

-

1245 - 1710 MHz

Core clock speed

-

780 - 1100 MHz

Floating-point performance

1,488.0 gflops

-

Manufacturing process technology

40 nm

8 nm

Number of transistors

1,700 million

17,400 million

Pipelines / CUDA cores

960

6144

Power consumption (TDP)

127 Watt

150 Watt (80 - 150 Watt TGP)

Texture fill rate

37.20

296.6

Memory type

GDDR5

GDDR6

Maximum RAM amount

1 GB

16 GB

Memory bus width

256 Bit

256 Bit

Memory clock speed

-

14000 MHz

Memory bandwidth

128.0 GB/s

384.0 GB/s

Shared memory

-

-

Display Connectors

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

No outputs

Eyefinity

1

-

HDMI

+

-

DisplayPort support

-

-

DirectX

DirectX® 11

12 Ultimate (12_2)

CUDA

-

8.6

Mantle

-

-

OpenCL

1.2

2.0

OpenGL

4.4

4.6

Shader Model

5.0

6.5

Vulkan

-

1.2

AppAcceleration

-

-

CrossFire

1

-

Enduro

-

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-