Radeon RX 580 and Radeon HD 6850M - video card comparison

Radeon RX 580

Radeon HD 6850M

Architecture

Polaris (2016−2019)

Terascale 2 (2009−2015)

GPU code name

Polaris 20

Granville Pro/LP

Market segment

Desktop

Laptop

Release date

April 2017

January 2011

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 8-pin

-

Boost clock speed

1340 MHz

-

Core clock speed

1257 MHz

575 / 675 MHz

Floating-point performance

6,175 gflops

1,080.0 gflops

Manufacturing process technology

14 nm

40 nm

Number of transistors

5,700 million

1,040 million

Pipelines / CUDA cores

2304

800

Power consumption (TDP)

185 Watt

50 Watt

Texture fill rate

193.0

27.00

Memory type

GDDR5

DDR3, GDDR5

Maximum RAM amount

8 GB

1 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

8000 MHz

800 MHz

Memory bandwidth

256.0 GB/s

25.6 GB/s

Shared memory

-

-

Display Connectors

1x HDMI, 3x DisplayPort

No outputs

HDMI

+

-

DirectX

12 (12_0)

11.2 (11_0)

OpenCL

2.0

1.2

OpenGL

4.6

4.4

Shader Model

6.4

5.0

Vulkan

1.2.131

N/A