Radeon RX 6600M and Radeon 660M - video card comparison
Passmark - benchmark score Radeon RX 6600M vs Radeon 660M
Radeon RX 6600M
14089
Radeon 660M
6474
Radeon RX 6600M
Radeon 660M
Architecture
RDNA 2 (2020−2022)
RDNA 2 (2020−2022)
GPU code name
R21M-E65-70
RDNA 2 Rembrandt
Market segment
Laptop
Laptop
Release date
September 2020
January 2022
Interface
PCIe 4.0 x8
PCIe 4.0 x8
Supplementary power connectors
None
None
Boost clock speed
2177 MHz
1900 MHz
Core clock speed
2068 MHz
-
Manufacturing process technology
7 nm
6 nm
Number of transistors
11,060 million
13,100 million
Pipelines / CUDA cores
1792
384
Power consumption (TDP)
100 Watt (50 - 100 Watt TGP)
45 Watt
Texture fill rate
235.8
45.60
Memory type
GDDR6
System Shared
Maximum RAM amount
8 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
14000 MHz
System Shared
Memory bandwidth
256.0 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenCL
2.1
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2
1.2