Radeon 660M and GeForce RTX 4070 Mobile - video card comparison
Radeon 660M
GeForce RTX 4070 Mobile
Architecture
RDNA 2 (2020−2022)
Ada Lovelace
GPU code name
RDNA 2 Rembrandt
GN21-X6
Market segment
Laptop
Laptop
Release date
January 2022
January 2023
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
None
-
Boost clock speed
1900 MHz
2175 MHz
Core clock speed
-
1605 MHz
Manufacturing process technology
6 nm
5 nm
Number of transistors
13,100 million
-
Pipelines / CUDA cores
384
4608
Power consumption (TDP)
45 Watt
115 Watt (35 - 115 Watt TGP)
Texture fill rate
45.60
244.1
Memory type
System Shared
GDDR6
Maximum RAM amount
System Shared
8 GB
Memory bus width
System Shared
128 Bit
Memory clock speed
System Shared
16000 MHz
Memory bandwidth
-
256.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (12_1)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3