Radeon RX 6900 and GeForce RTX 4090 Ti - video card comparison
Radeon RX 6900
GeForce RTX 4090 Ti
Architecture
RDNA 2.0 (2020−2022)
Ada Lovelace
GPU code name
Navi 21
AD102
Market segment
Desktop
Desktop
Release date
October 2020
2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
2x 16-pin
Boost clock speed
2105 MHz
2565 MHz
Manufacturing process technology
7 nm
5 nm
Number of transistors
23,000 million
76,300 million
Pipelines / CUDA cores
4608
18176
Power consumption (TDP)
255 Watt
600 Watt
Texture fill rate
606.2
1,457
Memory type
GDDR6
GDDR6X
Maximum RAM amount
16 GB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
16 GB/s
24 GB/s
Memory bandwidth
512.0 GB/s
1,152 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
-
8.9
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3