Radeon RX 6900 XTX and GeForce RTX 4090 - video card comparison
Radeon RX 6900 XTX
GeForce RTX 4090
Architecture
RDNA 2.0 (2020−2022)
Ada Lovelace
GPU code name
Navi 21
AD102-300-A1
Market segment
Desktop
Desktop
Release date
October 2020
September 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
1x 16-pin
Boost clock speed
2435 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
5120
16384
Power consumption (TDP)
330 Watt
450 Watt
Texture fill rate
779.2
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 2.1, 2x DisplayPort 1.4a, 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
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.7
6.6
Vulkan
1.3
1.3