Radeon RX 6800 and GeForce RTX 4090 Ti - video card comparison
Radeon RX 6800
GeForce RTX 4090 Ti
Architecture
Navi / RDNA2 (2020−2022)
Ada Lovelace
GPU code name
Navi 21
AD102
Market segment
Desktop
Desktop
Release date
November 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
Core clock speed
1815 MHz
-
Manufacturing process technology
7 nm
5 nm
Number of transistors
26,800 million
76,300 million
Pipelines / CUDA cores
3840
18176
Power consumption (TDP)
250 Watt
600 Watt
Texture fill rate
505.2
1,457
Memory type
GDDR6
GDDR6X
Maximum RAM amount
16 GB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
16000 MHz
24 GB/s
Memory bandwidth
512.0 GB/s
1,152 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)
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