GeForce RTX 3080 Mobile and Radeon 660M - video card comparison
GeForce RTX 3080 Mobile
Radeon 660M
Architecture
Ampere (2020−2022)
RDNA 2 (2020−2022)
GPU code name
GN20-E7 GA104
RDNA 2 Rembrandt
Market segment
Laptop
Laptop
Release date
January 2021
January 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x8
Supplementary power connectors
-
None
Boost clock speed
1245 - 1710 MHz
1900 MHz
Core clock speed
780 - 1100 MHz
-
Manufacturing process technology
8 nm
6 nm
Number of transistors
17,400 million
13,100 million
Pipelines / CUDA cores
6144
384
Power consumption (TDP)
150 Watt (80 - 150 Watt TGP)
45 Watt
Texture fill rate
296.6
45.60
Memory type
GDDR6
System Shared
Maximum RAM amount
16 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
14000 MHz
System Shared
Memory bandwidth
384.0 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 Ultimate (12_2)
12 (12_1)
CUDA
8.6
-
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2
1.2