Radeon HD 6850M and Radeon RX 6800 XT - video card comparison

Radeon HD 6850M

Radeon RX 6800 XT

Architecture

Terascale 2 (2009−2015)

Navi / RDNA2 (2020−2022)

GPU code name

Granville Pro/LP

Navi 21

Market segment

Laptop

Desktop

Release date

January 2011

November 2020

Interface

PCIe 2.0 x16

PCIe 4.0 x16

Supplementary power connectors

-

2x 8-pin

Boost clock speed

-

2250 MHz

Core clock speed

575 / 675 MHz

1825 MHz

Floating-point performance

1,080.0 gflops

-

Manufacturing process technology

40 nm

7 nm

Number of transistors

1,040 million

26,800 million

Pipelines / CUDA cores

800

4608

Power consumption (TDP)

50 Watt

300 Watt

Texture fill rate

27.00

648.0

Memory type

DDR3, GDDR5

GDDR6

Maximum RAM amount

1 GB

16 GB

Memory bus width

128 Bit

256 Bit

Memory clock speed

800 MHz

16000 MHz

Memory bandwidth

25.6 GB/s

512.0 GB/s

Shared memory

-

-

Display Connectors

No outputs

1x HDMI, 2x DisplayPort, 1x USB Type-C

HDMI

-

+

DirectX

11.2 (11_0)

12 Ultimate (12_2)

OpenCL

1.2

2.0

OpenGL

4.4

4.6

Shader Model

5.0

6.5

Vulkan

N/A

1.2