Radeon RX 6900 and GeForce RTX 3080 Ti 20 GB - video card comparison
Radeon RX 6900
GeForce RTX 3080 Ti 20 GB
Architecture
RDNA 2.0 (2020−2022)
Ampere (2020−2022)
GPU code name
Navi 21
GA102
Market segment
Desktop
Desktop
Release date
October 2020
January 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
1x 12-pin
Boost clock speed
2105 MHz
1665 MHz
Manufacturing process technology
7 nm
8 nm
Number of transistors
23,000 million
28,300 million
Pipelines / CUDA cores
4608
10240
Power consumption (TDP)
255 Watt
350 Watt
Texture fill rate
606.2
532.8
Memory type
GDDR6
GDDR6X
Maximum RAM amount
16 GB
20 GB
Memory bus width
256 Bit
320 Bit
Memory clock speed
16 GB/s
19 GB/s
Memory bandwidth
512.0 GB/s
760.3 GB/s
Display Connectors
1x HDMI, 2x DisplayPort, 1x USB Type-C
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.6
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.6
Vulkan
1.2
1.3