Radeon RX 6850 XT and GeForce RTX 4090 - video card comparison

Radeon RX 6850 XT

GeForce RTX 4090

Architecture

RDNA 2.0 (2020−2022)

Ada Lovelace

GPU code name

Navi 21

AD102-300-A1

Market segment

Desktop

Release date

2022

September 2022

Interface

PCIe 4.0 x16

Supplementary power connectors

2x 8-pin

1x 16-pin

Boost clock speed

2250 MHz

2520 MHz

Core clock speed

2235 MHz

Manufacturing process technology

7 nm

5 nm

Number of transistors

26,800 million

76,300 million

Pipelines / CUDA cores

4608

16384

Power consumption (TDP)

325 Watt

450 Watt

Texture fill rate

648.0

1,290

Memory type

GDDR6

GDDR6X

Maximum RAM amount

16 GB

24 GB

Memory bus width

256 Bit

384 Bit

Memory clock speed

18 GB/s

21000 MHz

Memory bandwidth

576.0 GB/s

1,008 GB/s

Shared memory

Display Connectors

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

1x HDMI 2.1, 3x DisplayPort 1.4a

HDMI

DirectX

12 Ultimate (12_2)

CUDA

8.9

OpenCL

2.1

3.0

OpenGL

4.6

Shader Model

6.5

6.6

Vulkan

1.3