Radeon RX 6900 XT and GeForce GTX 780M Mac Edition - video card comparison
Radeon RX 6900 XT
GeForce GTX 780M Mac Edition
Architecture
Navi / RDNA2 (2020−2022)
Kepler (2012−2018)
GPU code name
Navi 21
GK104
Market segment
Desktop
Desktop
Release date
December 2020
November 2013
Interface
PCIe 4.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 8-pin
-
Boost clock speed
2250 MHz
797 MHz
Core clock speed
1825 MHz
771 MHz
Floating-point performance
-
2,448 gflops
Manufacturing process technology
7 nm
28 nm
Number of transistors
26,800 million
3,540 million
Pipelines / CUDA cores
5120
1536
Power consumption (TDP)
300 Watt
122 Watt
Texture fill rate
720.0
102.0
Memory type
GDDR6
GDDR5
Maximum RAM amount
16 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
16000 MHz
5000 MHz
Memory bandwidth
512.0 GB/s
160.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort, 1x USB Type-C
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 (11_0)
CUDA
-
3.0
OpenCL
2.1
1.2
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2
1.1.126