Radeon RX 6900 XTX and Radeon 780M - video card comparison
Radeon RX 6900 XTX
Radeon 780M
Architecture
RDNA 2.0 (2020−2022)
RDNA 3
GPU code name
Navi 21
Phoenix
Market segment
Desktop
Laptop
Release date
October 2020
January 2023
Interface
PCIe 4.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 8-pin
None
Boost clock speed
2435 MHz
3000 MHz
Core clock speed
-
1500 MHz
Manufacturing process technology
7 nm
4 nm
Number of transistors
26,800 million
25,390 million
Pipelines / CUDA cores
5120
768
Power consumption (TDP)
330 Watt
54 Watt (35 - 54 Watt TGP)
Texture fill rate
779.2
139.2
Memory type
GDDR6
System Shared
Maximum RAM amount
16 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
18 GB/s
System Shared
Memory bandwidth
576.0 GB/s
-
Shared memory
-
+
Display Connectors
1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C
Portable Device Dependent
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.1
2.1
OpenGL
4.6
4.6
Shader Model
6.7
6.7
Vulkan
1.3
1.3