Radeon RX 6900 XTX and Radeon RX 6800 - video card comparison
Radeon RX 6900 XTX
Radeon RX 6800
Architecture
RDNA 2.0 (2020−2022)
Navi / RDNA2 (2020−2022)
GPU code name
Navi 21
Navi 21
Market segment
Desktop
Desktop
Release date
October 2020
November 2020
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
2x 8-pin
Boost clock speed
2435 MHz
2105 MHz
Core clock speed
-
1815 MHz
Manufacturing process technology
7 nm
7 nm
Number of transistors
26,800 million
26,800 million
Pipelines / CUDA cores
5120
3840
Power consumption (TDP)
330 Watt
250 Watt
Texture fill rate
779.2
505.2
Memory type
GDDR6
GDDR6
Maximum RAM amount
16 GB
16 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
18 GB/s
16000 MHz
Memory bandwidth
576.0 GB/s
512.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C
1x HDMI, 2x DisplayPort, 1x USB Type-C
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.1
2.0
OpenGL
4.6
4.6
Shader Model
6.7
6.5
Vulkan
1.3
1.2